UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

SCHEDULE 14A

Proxy Statement Pursuant to Section 14(a) of the

Securities Exchange Act of 1934

Filed by the Registrant ☒

Filed by a Party other than the Registrant ☐

Check the appropriate box:

☒	Preliminary Proxy Statement

☐	Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2))

☐	Definitive Proxy Statement

☐	Definitive Additional Materials

☐	Soliciting Material under §240.14a-12

ALLETE, Inc.

(Name of Registrant as Specified in Its Charter)

(Name of Person(s) Filing Proxy Statement, if other than the Registrant)

Payment of Filing Fee (Check the appropriate box):

☐	No fee required.

☐	Fee paid previously with preliminary materials.

☒	Fee computed on table in exhibit required by Item 25(b) per Exchange Act Rules 14a-6(i)(1) and 0-11.

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PRELIMINARY PROXY MATERIALS—SUBJECT TO COMPLETION

DATED JUNE 20, 2024

ALLETE, Inc.

30 West Superior Street

Duluth, Minnesota 55802

MERGER PROPOSED-YOUR VOTE IS VERY IMPORTANT

To Shareholders of ALLETE, Inc.:

You are invited to attend a special meeting of the shareholders (the “Special Meeting”) of ALLETE, Inc. (the “Company”) on [•], 2024 at [•] [a.m.] / [p.m.] Central Daylight Time to be held as a virtual-only webcast. You will not be able to attend the meeting in person. You are invited to attend and vote via the Internet at [•].

At the Special Meeting, you will be asked to consider and vote upon a proposal to approve and adopt the Agreement and Plan of Merger (the “Merger Agreement”), dated as of May 5, 2024, by and among the Company, Alloy Parent LLC, a Delaware limited liability company (“Parent”), and Alloy Merger Sub LLC, a Delaware limited liability company and wholly owned subsidiary of Parent (“Merger Sub”). Pursuant to the Merger Agreement, on the terms and subject to the conditions set forth therein, Merger Sub will merge with and into the Company (the “Merger”), with the Company continuing as the surviving corporation in the Merger and becoming a subsidiary of Parent. Upon the closing of the transactions contemplated by the Merger Agreement, Parent will be jointly owned by a wholly owned subsidiary of Canada Pension Plan Investment Board and affiliates of investment vehicles affiliated with one or more funds, accounts or other entities managed or advised by Global Infrastructure Management, LLC.

If the Merger is completed, the Company will become a subsidiary of Parent, and for each share of our common stock you own, you will be entitled to receive $67.00 in cash, without interest, as described in more detail in the accompanying proxy statement under the heading “The Merger Agreement—Effects of the Merger; Merger Consideration” beginning on page 68. The consideration payable to our shareholders represents a premium of approximately 19% relative to the unaffected closing price for shares of our common stock on December 4, 2023 (the last trading day prior to the initial publication of market rumors regarding a potential acquisition of the Company) and a premium of approximately 22% over the 30-day volume weighted average price prior to that date. The consideration reflects a premium of approximately 10% relative to the closing price for shares of our common stock on May 2, 2024 (at market close prior to the publication of the May 2,2024, market rumors regarding a potential acquisition of the Company).

As a result of the Merger, our common stock will no longer be publicly traded and will be delisted from the New York Stock Exchange. In addition, our common stock will be deregistered under the Securities Exchange Act of 1934, as amended, and we will no longer file periodic reports with the United States Securities and Exchange Commission. If the Merger is completed, you will not own any shares of the surviving corporation.

We urge you to read the accompanying proxy statement, which includes information about the Merger and the Special Meeting. For a discussion of the U.S. federal income tax considerations generally applicable to the Merger, see the section entitled “The Proposed Merger—Certain U.S. Federal Income Tax Considerations of the Merger” beginning on page 55 of the accompanying proxy statement.

Whether or not you plan to virtually attend the Special Meeting, please take the time to vote by following the instructions on your proxy card. The board of directors of the Company unanimously recommends a vote FOR all of the proposals described in the proxy statement.

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Your vote is very important regardless of the number of shares you own. We cannot complete the Merger unless holders of at least a majority of the outstanding shares of our common stock entitled to vote at the Special Meeting vote in favor of the proposal to approve the Merger Agreement and the transactions contemplated thereby, including the Merger. The failure to vote will have the same effect as a vote against the proposal to approve the Merger Agreement and the transactions contemplated thereby, including the Merger.

Sincerely,

[•]

Bethany M. Owen

Chair, President and Chief Executive Officer

The accompanying proxy statement is dated [•], 2024, and is first being mailed to our shareholders on or about [•], 2024.

Neither the Securities and Exchange Commission nor any state securities commission has approved or disapproved of the Merger described in the accompanying proxy statement or determined if the accompanying proxy statement is accurate or adequate. Any representation to the contrary is a criminal offense.

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PRELIMINARY PROXY MATERIALS—SUBJECT TO COMPLETION

DATED JUNE 20, 2024

NOTICE OF A SPECIAL MEETING OF SHAREHOLDERS

Date and Time:	[•], 2024 [•] [a.m.] / [p.m.] Central Daylight Time

Location:	[•] The Special Meeting will be held as a virtual-only webcast.

Business Items:	1.	Merger Proposal: To consider and vote on the proposal to approve and adopt the Agreement and Plan of Merger, dated as of May 5, 2024 (the “Merger Agreement”), by and among ALLETE, Inc. (the “Company”), Alloy Parent LLC (“Parent”) and Alloy Merger Sub LLC, a wholly owned subsidiary of Parent (“Merger Sub”), and approve the transactions contemplated thereby, including the merger (the “Merger”) of Merger Sub with and into the Company (the “Merger Proposal”). A copy of the Merger Agreement is attached as Annex A to the proxy statement accompanying this notice;

	2.	Merger-Related Compensation Proposal: To consider and vote on a nonbinding, advisory proposal to approve compensation that will or may become payable by us to our named executive officers in connection with the Merger (the “Merger-Related Compensation Proposal”);

	3.	Special Meeting Adjournment Proposal: To consider and vote on a proposal to approve any motion to adjourn the Special Meeting, if such proposal is called at the Special Meeting (the “Special Meeting Adjournment Proposal”); and

	4.	To transact any other business as may properly come before the Special Meeting or any adjournment of the Special Meeting. The board of directors of the Company (the “Board”) is not aware of any other business to come before the Special Meeting.

Who Can Vote:	You may vote if you were a shareholder of record of shares of common stock, no par value, of the Company (“Company Common Stock”), as of the close of business on [•], 2024.

Proxy Voting:	Your vote is very important. You can vote by proxy as a shareholder of record: • by visiting www.proxyvote.com on the Internet; • by calling, toll-free within the U.S. 1-800-690-6903; • by signing, dating and returning your proxy card if you received a paper copy of the proxy materials; or • by voting during the Special Meeting.

The Board unanimously recommends that you vote FOR the Merger Proposal, FOR the Merger-Related Compensation Proposal and FOR any Special Meeting Adjournment Proposal, if presented. Your attention is directed to the accompanying proxy statement for a discussion of the Merger and the Merger Agreement, as well as the matters that will be considered at the Special Meeting.

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Your vote is very important. The conditions to the Merger include that our shareholders approve the Merger Proposal. Approval of the Merger Proposal requires approval by holders of at least a majority of all of the outstanding shares of Company Common Stock entitled to vote at the Special Meeting. Approval of the nonbinding Merger-Related Compensation Proposal and any Special Meeting Adjournment Proposal, if presented, is not a condition to completion of the Merger. Approval of each of the nonbinding Merger-Related Compensation Proposal and any Special Meeting Adjournment Proposal, if presented, requires the affirmative vote of the holders of a majority of the shares of Company Common Stock entitled to vote at, and represented in person (via the Internet) or by proxy at, the Special Meeting.

If your shares of Company Common Stock are held in “street name” by a broker, bank or other nominee, follow the directions given by the broker, bank or other nominee regarding how to instruct it to vote your shares of Company Common Stock.

Please submit your proxy by accessing the Internet, by telephone or by completing, signing, dating and returning your signed proxy card(s) as soon as possible, so that your shares of Company Common Stock may be represented at the Special Meeting. You may revoke your proxy at any time before the vote at the Special Meeting by following the procedures outlined in the accompanying proxy statement. If you have any questions or need assistance in voting your shares of Company Common Stock, please contact our proxy solicitor, Georgeson LLC, by telephone toll-free at (866) 529-0639 or by email at allete@georgeson.com.

By order of the Board,

[•]

By: Julie L. Padilla

Vice President, Chief Legal Officer and Corporate Secretary

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		Page
QUESTIONS AND ANSWERS ABOUT THE MERGER AND THE SPECIAL MEETING		iv
SUMMARY		1
	The Companies Involved in the Merger	1
	The Proposed Merger	2
	Effects of the Merger; Merger Consideration	2
	Certain U.S. Federal Income Tax Considerations of the Merger	3
	Approvals Required by Shareholders in Connection with the Proposals	3
	Dissenters’ Rights	4
	Treatment of Company Equity Compensation Awards	4
	Treatment of the Company’s Direct Stock Purchase and Dividend Reinvestment Plan	5
	Treatment of the Company’s Employee Stock Purchase Plan	5
	Interests of the Company’s Directors and Executive Officers in the Merger	5
	Dividends	6
	Recommendation of the Company’s Board	6
	Opinion of J.P. Morgan Securities LLC	6
	Opinion of Houlihan Lokey Capital, Inc.	6
	Preferred Equity Investment	7
	Financing of the Merger Consideration	7
	Completion of the Merger is Subject to Regulatory Clearance	8
	How the Merger Agreement May be Terminated by the Company or Parent	8
	Termination Fees May be Payable Under Some Circumstances	9
	Delisting and Deregistration of Company Common Stock	10
	No Solicitation of Competing Proposals	10
	Post-Merger Governance and Management	10
	Litigation Relating to the Merger	10
CAUTIONARY STATEMENT REGARDING FORWARD-LOOKING STATEMENTS		11
THE COMPANIES		12
INFORMATION ABOUT THE SPECIAL MEETING AND VOTING		13
	Date, Time and Place	13
	Matters to be Considered	13
	Record Date; Quorum Requirement; Voting Rights	13
	Revoking Proxies	13
	Required Vote	14
	Broker Non-Votes	14
	Abstentions; Not Voting	14
	Dissenters’ Rights	14
	Shares Beneficially Owned by Directors and Officers	15
	How Shares are Voted; Proxies	15
	Other Business	15
	Solicitation of Proxies	15
	Adjournments	16
PROPOSAL 1: MERGER PROPOSAL		17
THE PROPOSED MERGER		17
	General	17
	Merger Proposals	17
	Required Vote of Shareholders	17
	Effects of the Merger; Merger Consideration	17
	Financing	19
	Debt Commitment Letter	19

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		Page
	Equity Commitment Agreements	21
	Limited Guaranties	21
	Preferred Equity Investment	22
	Background of the Merger	22
	Recommendation of the Company’s Board and its Reasons for the Merger	37
	Opinion of J.P. Morgan Securities LLC	41
	Opinion of Houlihan Lokey Capital, Inc.	46
	Forward-Looking Financial Information	53
	Certain U.S. Federal Income Tax Considerations of the Merger	55
	Regulatory Matters Relating to the Merger	56
	Dissenters’ Rights	59
	Accounting Treatment	59
	Delisting and Deregistration of Company Common Stock	60
	Litigation Relating to the Merger	60
INTERESTS OF THE COMPANY’S DIRECTORS AND EXECUTIVE OFFICERS IN THE MERGER		61
	Leadership of the Company Following the Merger	61
	Other Interests of the Company’s Directors and Executive Officers in the Merger	61
	Potential Change in Control Payments to Named Executive Officers	65
THE MERGER AGREEMENT		68
	Explanatory Note Regarding the Merger Agreement	68
	The Merger	68
	Completion and Effectiveness of the Merger	68
	Effects of the Merger; Merger Consideration	68
	Treatment of Company Equity Compensation Awards	69
	Treatment of the Company’s Direct Stock Purchase and Dividend Reinvestment Plan	70
	Treatment of the Company’s Employee Stock Purchase Plan	70
	Lost, Stolen and Destroyed Certificates	71
	Representations and Warranties	71
	The Company’s Conduct of Business Before Completion of the Merger	74
	Non-Solicitation of Other Offers; Superior Proposal	78
	Obligation of the Board with Respect to Its Recommendation; Superior Proposal	80
	Reasonable Best Efforts to Complete the Merger	81
	Access to Information	82
	Director and Officer Indemnification and Insurance	82
	Employee Matters	83
	Financing and Financing Cooperation	84
	Refinancing of the 2025 Notes	85
	Parent’s Non-Solicit Obligations	85
	Transition Planning	85
	Post-Merger Management and Activities	86
	Preferred Equity Investment	86
	Conditions to the Merger	87
	Termination; Termination Fees; Expenses	88
	Miscellaneous	91
POST-MERGER GOVERNANCE AND MANAGEMENT		92
PROPOSAL 2: MERGER-RELATED COMPENSATION PROPOSAL		94
PROPOSAL 3: SPECIAL MEETING ADJOURNMENT PROPOSAL		95
MARKET PRICE OF THE COMPANY COMMON STOCK AND DIVIDEND INFORMATION		96
SECURITY OWNERSHIP OF CERTAIN BENEFICIAL OWNERS AND MANAGEMENT		97
DISSENTERS’ RIGHTS		98

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						Page
FUTURE SHAREHOLDER PROPOSALS						101
HOUSEHOLDING OF PROXY MATERIALS						102
OTHER MATTERS						103
WHERE YOU CAN FIND MORE INFORMATION						104
ANNEX A – AGREEMENT AND PLAN OF MERGER						A-1
ANNEX B – OPINION OF J.P. MORGAN SECURITIES LLC						B-1
ANNEX C – OPINION OF HOULIHAN LOKEY CAPITAL, INC.						C-1
ANNEX D – DISSENTERS’ RIGHTS PROVISIONS UNDER THE MINNESOTA BUSINESS CORPORATION ACT						D-1

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QUESTIONS AND ANSWERS ABOUT THE MERGER AND THE SPECIAL MEETING

The following questions and answers are intended to briefly address some commonly asked questions regarding the Special Meeting and the Merger. These questions and answers may not address all the questions that may be important to you as a shareholder. You should read the more detailed information contained elsewhere in this proxy statement, the annexes to this proxy statement and the documents referred to or incorporated by reference in this proxy statement. You may obtain information incorporated by reference in this proxy statement without charge by following the instructions under the section entitled “Where You Can Find More Information” beginning on page 104.

The proxy statement is dated [•], 2024, and, together with the enclosed form of proxy card, is first being mailed to our shareholders on or about [•], 2024. Except as otherwise specifically noted in this proxy statement, “ALLETE,” “we,” “our,” “us,” the “Company” and similar words refer to ALLETE, Inc. In addition, the terms “shareholder,” “shareholders,” “you” and “yours” throughout this proxy statement refers to a holder of shares of our common stock, no par value.

Q1:	Why am I receiving this document?

This document is being delivered to you because you are a shareholder of the Company. The board of directors of the Company (the “Board”) is furnishing this proxy statement and form of proxy card to Company shareholders in connection with the solicitation of proxies to be voted at the special meeting of the shareholders of the Company (the “Special Meeting”).

Q2:	When and where is the Special Meeting?

A:	The Special Meeting will take place on [•], 2024 at [•] [a.m.] / [p.m.] Central Daylight Time. The Special Meeting will be held as a virtual-only webcast at [•].

Q3:	What am I being asked to vote on at the Special Meeting?

A:	Company shareholders are being asked to consider and vote on the following matters at the Special Meeting:

Merger Proposal: The proposal to approve and adopt the Agreement and Plan of Merger, dated as of May 5, 2024 (the “Merger Agreement”), by and among the Company, Alloy Parent LLC (“Parent”) and Alloy Merger Sub LLC, a wholly owned subsidiary of Parent (“Merger Sub”), and approve the transactions contemplated thereby, including the merger (the “Merger”) of Merger Sub with and into the Company (the “Merger Proposal”). A copy of the Merger Agreement is attached as Annex A to this proxy statement;

2.	Merger-Related Compensation Proposal: The nonbinding, advisory proposal to approve compensation that will or may become payable by us to our named executive officers in connection with the Merger (the “Merger-Related Compensation Proposal”);

3.	Special Meeting Adjournment Proposal: The proposal to approve any motion to adjourn the Special Meeting, if such proposal is called at the Special Meeting (the “Special Meeting Adjournment Proposal”); and

4.	Any other business as may properly come before the Special Meeting or any adjournment of the Special Meeting. The Board is not aware of any other business to come before the Special Meeting.

Pursuant to the Merger Agreement, on the terms and subject to the conditions set forth therein, Merger Sub will merge with and into the Company, with the Company continuing as the surviving corporation in the Merger and becoming a subsidiary of Parent. The approval of the Merger Proposal is a condition to completion of the Merger, but neither approval of the Merger-Related Compensation Proposal nor the approval of any Special Meeting Adjournment Proposal, if presented, is a condition to completion of the Merger. A copy of the Merger Agreement is attached as Annex A to this proxy statement.

This document is serving as a proxy statement because it is being used by the Board to solicit proxies from the Company’s shareholders.

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Q4:	How do I vote?

A:	If you were a holder of record of shares of common stock, no par value, of the Company (“Company Common Stock”) at the close of business on [•], 2024 (the “Record Date”), you may vote with respect to the proposals as follows:

•	Voting by Telephone. You can vote by telephone by calling 1-800-690-6903 and following the instructions on the proxy card. Votes submitted by telephone must be submitted prior to 11:59 p.m. Eastern Daylight Time on [•], 2024;

•

Voting by Mail. You can vote by mail by signing the proxy card and returning it in the enclosed prepaid and addressed envelope, and by doing so you are authorizing the individuals named on the proxy card to vote your shares at the Special Meeting in the manner you indicate. If you receive more than one proxy card, it is an indication that your shares are held in multiple accounts. Please sign and return all proxy cards to ensure that all of your shares are voted. Votes submitted by mail must be received prior to the start of the Special Meeting;

•	Voting by Internet. You can vote by Internet at www.proxyvote.com by following the instructions on the proxy card. Votes submitted by Internet must be submitted prior to 11:59 p.m. Eastern Daylight Time on [•], 2024; or

•

Voting During the Special Meeting. You may vote during the Special Meeting by visiting [•] and entering the 16-digit control number included on your proxy card or on the instructions that accompanied your proxy materials. The webcast of the Special Meeting will begin promptly at [•] [a.m.] [p.m.] Central Daylight Time, on [•], 2024.

Telephone and Internet voting facilities for shareholders of record will be available 24 hours a day prior to 11:59 p.m. Eastern Daylight Time on [•], 2024. To participate in the Special Meeting, you will need the 16-digit control number included on your proxy card or on the instructions that accompanied your proxy materials.

Whether or not you expect to attend the Special Meeting, we urge you to vote your shares as promptly as possible to ensure your representation and the presence of a quorum at the Special Meeting. We encourage shareholders to submit their proxies by Internet or telephone. If you submit your proxy, you may still decide to attend the Special Meeting and vote your shares electronically at the Special Meeting.

Q5:	Why is my vote important?

If you do not submit your proxy by Internet or telephone or return your signed proxy card(s) by mail, it will be more difficult for us to obtain the necessary quorum to hold the Special Meeting and to obtain the shareholder approval necessary for the completion of the Merger. To carry on the business of the Special Meeting, there must be a quorum of shareholders present. The holders of at least a majority of the issued and outstanding shares of Company Common Stock entitled to vote at the Special Meeting must be represented in person (by Internet) or by proxy at the Special Meeting for a quorum to be present. If a quorum is not present at the Special Meeting, the shareholders will not be able to take action on any of the proposals at the Special Meeting.

For the Merger Proposal, at least a majority of the outstanding shares of Company Common Stock entitled to vote on such matter must approve such proposal; thus, a failure to vote will have the same effect as a vote AGAINST the Merger Proposal. Your vote is very important. We cannot complete the Merger unless our shareholders approve the Merger Proposal.

Q6:	As a shareholder, what will I receive in the Merger?

If the Merger is completed, you will be entitled to receive $67.00 in cash, without interest (the “Merger Consideration”), for each share of Company Common Stock that you owned immediately prior to the effective time of the Merger (the “Effective Time”), unless you have properly exercised your dissenters’ rights in strict compliance with Sections 302A.471 and 302A.473 of the Minnesota Business Corporation Act (the “MBCA”). In addition, while it is not part of the Merger Consideration, you will continue to be entitled to receive any dividends declared by us prior to the completion of the Merger, including a “stub period” dividend with respect to the period between the last quarterly dividend paid by us and the Effective Time.

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Q7:	How does the Board recommend that I vote?

A:	The Board unanimously recommends that you vote as follows:

1.	FOR the Merger Proposal;

2.	FOR the Merger-Related Compensation Proposal; and

3.	FOR any Special Meeting Adjournment Proposal, if presented.

The Board’s recommendations are described in more detail with the description of each proposal in this proxy statement. For a discussion of the factors that the Board considered in resolving to recommend that our shareholders vote to approve the Merger Proposal and the Merger-Related Compensation Proposal, please see the section entitled “The Proposed Merger—Recommendation of the Company’s Board and its Reasons for the Merger” beginning on page 37.

Q8:	How do the Company’s directors and officers intend to vote?

A:	We currently expect that each of our directors and executive officers will vote their shares of Company Common Stock in favor of all of the proposals to be voted on at the Special Meeting, although none of them have entered into any agreements obligating them to do so.

Q9:	When do you expect the Merger to be completed?

We expect the Merger to be completed in mid-2025, subject to the approval of the Merger Proposal by the Company’s shareholders, the receipt of regulatory approvals and other customary closing conditions. However, we cannot predict when regulatory review will be completed, whether regulatory or Company shareholder approval will be received or the potential terms and conditions of any regulatory approval that is received. In addition, the satisfaction of certain other conditions to the Merger, some of which are outside of our control, could require the parties to complete the Merger later than expected or not to complete it at all. For a discussion of the conditions to the completion of the Merger and of the risks associated with obtaining regulatory approvals in connection with the Merger, see the section entitled “The Merger Agreement—Conditions to the Merger” beginning on page 87 and the section entitled “The Proposed Merger—Regulatory Matters Relating to the Merger” beginning on page 56.

Q10:	What happens if the Merger is not completed?

In the event that the Merger Proposal does not receive the required approval from our shareholders, or if the Merger is not completed for any other reason, our shareholders will not receive any payment for their shares of Company Common Stock in connection with the Merger. Instead, we will remain an independent publicly traded company and we expect that the Company Common Stock will continue to be listed and traded on the New York Stock Exchange (the “NYSE”), the Company Common Stock will continue to be registered under the Securities Exchange Act of 1934, as amended (the “Exchange Act”), and shareholders will continue to own their shares of Company Common Stock.

Q11:	How will my proxy be voted?

If you vote by Internet, by telephone or by completing, signing, dating and returning your signed proxy card(s), your proxy will be voted in accordance with your instructions. If any other matters properly come before the Special Meeting, or any adjourned meeting, all shares represented by valid proxies will be voted in accordance with the judgment of the appointed proxies.

Q12:	What are the votes required to approve the proposals?

A:	The affirmative vote of the holders of a majority of all of the outstanding shares of Company Common Stock entitled to vote at the Special Meeting is required to approve the Merger Proposal.

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is advisory only, it will not be binding on us. Accordingly, if the Merger Proposal is approved and the Merger is completed, the compensation will be payable, subject only to the conditions applicable thereto, regardless of the outcome of the nonbinding, advisory vote of our shareholders on the Merger-Related Compensation Proposal.

Q13:	If I am a record holder of my shares on the Record Date, what happens if I abstain from voting or I don’t submit a proxy or attend the Special Meeting to vote in person (by Internet)?

A:	For the Merger Proposal, an abstention or a failure to vote will have the same effect as a vote AGAINST such proposal.

For the Merger-Related Compensation Proposal, an abstention will have the same effect as a vote AGAINST such proposal and a failure to vote at the Special Meeting will have no effect on the vote on such proposal.

For any Special Meeting Adjournment Proposal, if presented, an abstention will have the same effect as a vote AGAINST such proposal and a failure to vote at the Special Meeting will have no effect on the vote on such proposal.

If you are a shareholder of record of Company Common Stock as of the close of business on the Record Date and submit your proxy but do not indicate how you want to vote, your shares of Company Common Stock will be voted FOR the Merger Proposal, FOR the Merger-Related Compensation Proposal and FOR any Special Meeting Adjournment Proposal, if presented.

Q14:	What if my shares of Company Common Stock are held in “street name”?

If some or all of your shares of Company Common Stock are held by your broker, bank or other nominee, you are often said to hold these shares in “street name” and you are considered the “beneficial owner” of those shares. If your shares are held in “street name” through a broker, bank or other nominee, you will receive instructions on how to vote from your broker, bank or other nominee. You must follow their instructions in order for your shares to be voted. In that case, this proxy statement has been forwarded to you by your broker, bank or other nominee who is considered, with respect to those shares, to be the Company shareholder of record. As the beneficial owner, you have the right to direct your broker, bank or other nominee how to vote your shares by following their instructions for voting. You are also invited to attend the Special Meeting.

Q15:	If my broker, bank or other nominee holds my shares in “street name,” will my broker, bank or other nominee vote my shares for me?

No, not without your instructions. Your broker, bank or other nominee is permitted to vote your shares of Company Common Stock on any proposal currently scheduled to be considered at the Special Meeting only if you instruct your broker, bank or other nominee how to vote. Under the listing requirements of the NYSE, brokers, banks or other nominees who hold shares in “street name” for a beneficial owner of those shares typically have the authority to vote in their discretion on “routine” proposals when they have not received instructions from beneficial owners. However, brokers, banks or other nominees are not allowed to exercise their voting discretion with respect to the approval of matters that the NYSE determines to be “non-routine.” Accordingly, a “broker non-vote” occurs when a broker, bank or other nominee returns a valid proxy voting upon a matter or matters for which the applicable rules provide discretionary authority but does not vote on a particular item because it does not have discretionary authority to vote on the matter and has not received specific voting instructions from the beneficial owner of such shares.

The Company does not expect any broker non-votes at the Special Meeting because, under NYSE rules, your broker, bank or other nominee does not have discretionary authority to vote your shares of Company Common Stock on any of the proposals described in this proxy statement. Therefore, if you do not instruct your broker, bank or other nominee on how to vote your shares:

•	your broker, bank or other nominee may not vote your shares of Company Common Stock on the Merger Proposal, which will have the same effect as a vote AGAINST such proposal;

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•	your broker, bank or other nominee may not vote your shares of Company Common Stock on the Merger-Related Compensation Proposal, which will have no effect on the vote on such proposal; and

•	your broker, bank or other nominee may not vote your shares of Company Common Stock on any Special Meeting Adjournment Proposal, if presented, which will have no effect on the vote on such proposal.

See the section entitled “Information About the Special Meeting and Voting—Broker Non-Votes” beginning on page 14 for details on the impact of a broker non-vote.

Given the foregoing, please be sure to provide your broker, bank or other nominee with instructions on how to vote your shares of Company Common Stock as soon as possible. Please check the voting form used by your broker, bank or other nominee to see if it offers Internet or telephone submission of proxies.

Q16:	Who will count the votes?

Representatives of Broadridge Financial Solutions, Inc. (“Broadridge”) will tabulate the votes cast at the Special Meeting, and representatives of American Election Services, LLC will act as the independent inspector of election. Whether you vote your shares by Internet, telephone or mail, your vote will be received directly by Broadridge.

Q17:	What should I do if I receive more than one set of proxy materials?

You may receive more than one set of voting materials, including multiple copies of this proxy statement and multiple proxy cards. For example, if you hold your shares of Company Common Stock in more than one brokerage account, you will receive a separate voting instruction card for each brokerage account in which you hold shares of Company Common Stock. If you are a shareholder of record and your shares of Company Common Stock are registered in more than one name, you will receive more than one proxy card. Please vote by Internet or telephone (or complete, sign, date and return) with respect to each proxy card that you receive.

Q18:	Can I revoke my proxy and change my vote?

A:	Yes. You have the right to revoke your proxy at any time prior to the time your shares of Company Common Stock are voted at the Special Meeting. If you are a shareholder of record of Company Common Stock as of the close of business on the Record Date, your proxy can be revoked in several ways:

•	by entering a new vote by Internet or by telephone by 11:59 p.m. Eastern Daylight Time on [•], 2024;

•	by delivering a written revocation to the Company’s Corporate Secretary prior to the Special Meeting;

•	by submitting another valid proxy bearing a later date than the first proxy and that is received prior to the Special Meeting; or

•	by voting during the Special Meeting.

However, if your shares of Company Common Stock are held in “street name,” you must check with your broker, bank or other nominee to determine how to revoke your proxy.

Q19:	Should I send in my stock certificates now?

A:	No. After the Merger is completed, Parent will send former Company shareholders written instructions for exchanging their stock certificates for the Merger Consideration.

Q20:	Will I have to pay taxes on the Merger Consideration I receive?

The receipt of cash in exchange for shares of Company Common Stock pursuant to the Merger will generally be a taxable transaction for U.S. federal income tax purposes. Such receipt of cash by a holder of Company Common Stock that is a U.S. Holder (as defined in the section entitled “The Proposed Merger—Certain U.S. Federal Income Tax Considerations of the Merger” beginning on page 55) will generally result in the recognition of gain or loss in an amount equal to the difference, if any, between (1) the amount of cash received in the Merger and (2) such U.S. Holder’s adjusted tax basis in the shares

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of Company Common Stock exchanged therefor (as further discussed in the section entitled “The Proposed Merger—Certain U.S. Federal Income Tax Considerations of the Merger”). Such gain or loss will generally constitute capital gain or loss and will constitute long-term capital gain or loss if the U.S. Holder’s holding period for the Company Common Stock exchanged is more than one year as of the date of the Merger. A Non-U.S. Holder (as defined in the section entitled “The Proposed Merger—Certain U.S. Federal Income Tax Considerations of the Merger”) generally will not be subject to U.S. federal income tax with respect to the exchange of shares of Company Common Stock for cash in the Merger unless such Non-U.S. Holder has certain connections to the United States.

See the section entitled “The Proposed Merger—Certain U.S. Federal Income Tax Considerations of the Merger” beginning on page 55 for the definition of “U.S. Holder” and “Non-U.S. Holder” and a more detailed discussion of the U.S. federal income tax consequences of the Merger. You should consult your tax advisor regarding the particular tax consequences to you of the exchange of shares of Company Common Stock for cash pursuant to the Merger in light of your particular circumstances (including the applicability and effect of any federal, state, local, non-U.S. or other tax laws and changes in those laws).

Q21:	What happens if I sell my shares of Company Common Stock before the Special Meeting?

The Record Date for the Special Meeting is earlier than the date of the Special Meeting. If you own shares of Company Common Stock as of the close of business on the Record Date, but transfer your shares after the close of business on the Record Date and before the Special Meeting, you will retain your right to vote such shares at the Special Meeting, but you will no longer have the right to receive the Merger Consideration with respect to such shares.

Q22:	Am I entitled to exercise dissenters’ rights instead of receiving the Merger Consideration for my shares of Company Common Stock?

Yes. If the Merger is completed, Company shareholders who do not vote in favor of the Merger Proposal and who otherwise strictly comply with Sections 302A.471 and 302A.473 of the MBCA will be entitled to demand payment for the fair value of their shares in connection with the Merger. The rights of dissenting shareholders under the MBCA are discussed in the section entitled “Dissenters’ Rights” beginning on page 98. Any exercise of dissenters’ rights must be in accordance with the procedures set forth in Sections 302A.471 and 302A.473 of the MBCA, which sections are reproduced in their entirety as Annex D to this proxy statement.

Q23:	Do any of the Company’s directors or executive officers have interests in the Merger that may be in addition to or different from those of the Company’s shareholders generally?

Yes. In considering the recommendation of the Board with respect to the Merger Proposal, you should be aware that the Company’s directors and executive officers may have interests in the Merger which are different from, or in addition to, the interests of the Company’s shareholders generally. For example, executive officers of the Company may be entitled to or eligible for accelerated vesting of awards of equity compensation in connection with the Merger and may also be entitled to enhanced severance benefits in connection with a qualifying termination of employment in connection with the Merger. The Board was aware of and considered these interests, among other matters, in evaluating and negotiating the Merger Agreement and the Merger, in approving the Merger Agreement and the Merger, and in recommending that the Merger Agreement be adopted by the Company’s shareholders. For a description of the interests of the Company’s directors and executive officers in the Merger, see the section entitled “Interests of the Company’s Directors and Executive Officers in the Merger” beginning on page 61.

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Q24:	What will the holders of outstanding Company equity compensation awards receive in the Merger?

A:	Generally speaking, Company equity compensation awards will be treated as follows at the Effective Time:

•

Unvested RSUs. Each restricted stock unit with respect to Company Common Stock (a “RSU”) that is outstanding and unvested immediately prior to the Effective Time will be canceled as of the Effective Time and converted into a contingent right to receive a converted cash award with respect to an aggregate amount, without interest, equal in value to (x) the number of shares of Company Common Stock subject to such RSU immediately prior to the Effective Time after giving effect to the accumulation of dividend equivalents credited in respect of such RSU, multiplied by (y) the Merger Consideration, subject to deduction for any applicable withholding taxes. Each such converted cash award will continue to have, and payment will be subject to, the same terms and conditions, including vesting conditions, as applied to the corresponding RSU immediately prior to the Effective Time.

•

Vested RSUs. Each RSU that is outstanding and vested immediately prior to the Effective Time will be canceled as of the Effective Time and converted into a right to receive an aggregate amount, without interest, in cash equal in value to (x) the number of shares of Company Common Stock subject to such vested RSU immediately prior to the Effective Time after giving effect to the accumulation of dividend equivalents credited in respect of such RSU, multiplied by (y) the Merger Consideration, payable following the consummation of the Merger (the “Closing” and, the date the Closing occurs, the “Closing Date”) at such time as may be required to comply with tax rules governing deferred compensation, subject to deduction for any applicable withholding taxes.

•

Unvested Performance Share Awards. Each performance share award (a “PSA”), which constitutes the right to receive a share of Common Stock subject to the attainment of performance-based vesting conditions that is outstanding and unvested immediately prior to the Effective Time will be canceled as of the Effective Time and converted into the right to receive, without interest, the Merger Consideration with respect to the number of shares of Company Common Stock underlying each PSA, based on attainment of the applicable performance metrics at the greater of (1) the number of PSAs determined in accordance with the performance criteria as otherwise provided in the applicable award agreement and as if the performance period ended as of the last business day immediately preceding the Closing Date or (2) the target award; in either case, pro-rated, after giving effect to the accumulation of dividend equivalents credited in respect of each such PSA. Payment with respect to a pro-rated portion of each PSA, based on the number of whole calendar months within the vesting period that have elapsed as of the Effective Time in relation to the number of calendar months in the entire vesting period (such portion of the PSA, the “Applicable PSAs”), will be made as soon as reasonably practicable following the Closing Date, subject to deduction for any applicable withholding taxes. At the Effective Time, any outstanding portion of each converted PSA that is not comprised of Applicable PSAs (which will include the entirety of any PSA granted after the signing of the Merger Agreement) will continue to have, and payment will be subject to, the same terms and conditions (including time-based vesting conditions, but excluding performance-based vesting conditions) as applied to the corresponding PSAs immediately prior to the Effective Time.

•

Deferred Stock Units. Each deferred stock unit held by our non-employee directors (a “DSU”) that is outstanding immediately prior to the Effective Time will be canceled as of the Effective Time and converted into a right to receive a cash payment with respect to an aggregate amount, without interest, equal in value to (x) the number of shares of Company Common Stock subject to such DSU immediately prior to the Effective Time after giving effect to the accumulation of dividend equivalents credited in respect of such DSU, multiplied by (y) the Merger Consideration. Each such converted cash award will continue to have, and payment will be subject to, the same terms and conditions, including elections with respect to time of payment, as applied to the corresponding DSU immediately prior to the Effective Time. No DSUs will become payable solely as a result of the Merger; however, certain non-employee directors may have elected to defer distribution of the DSUs until such time as the non-employee director has a “separation from service” pursuant to the non-employee director compensation deferral plan governing such deferred compensation. In such case, the non-employee director’s converted cash award will become payable at the Effective Time if the non-employee director ceases to serve as a director in connection with the Merger.

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Q25:	What will happen to the Company’s Direct Stock Purchase and Dividend Reinvestment Plan?

The Company’s Direct Stock Purchase and Dividend Reinvestment Plan (the “Company DRIP”) will be terminated at the Effective Time. However, such termination will not have any effect on the shares of Company Common Stock credited to the account of participants in the Company DRIP at the time of termination or the right of the holder of such shares of Company Common Stock to receive the Merger Consideration.

Q26:	What will happen to the Company’s Employee Stock Purchase Plan?

To the extent permitted, the Company’s Employee Stock Purchase Plan (the “ESPP”) will terminate as of immediately prior to the Closing Date and no further rights will be granted or exercised under the ESPP thereafter. For any offering period in effect under the ESPP immediately prior to the Closing, the Company will establish a new exercise date to be set under the ESPP, which date will be no later than five business days prior to the Closing Date (the “ESPP Exercise Date”), with the automatic purchase of Company Common Stock with respect to accumulated employee contributions of each participant under the Company ESPP in respect of such offering period to occur on such date. The amount of the accumulated contributions of each participant under the ESPP as of immediately prior to the ESPP Exercise Date will, to the extent not used to purchase Company Common Stock in accordance with the terms and conditions of the ESPP, be refunded to such participant as promptly as practicable following the Effective Time, without interest.

Q27:	When will the Company announce the voting results of the Special Meeting, and where can I find the voting results?

A:	We will announce the preliminary results at the Special Meeting and will publish the final results in a Form 8-K filed with the United States Securities and Exchange Commission (the “SEC”) within four business days after the date of the Special Meeting.

Q28:	How do I attend the Special Meeting?

The Special Meeting will be held as a virtual-only webcast at [•], and you will not be able to attend in person. No advance registration is required to attend the Special Meeting. The proxy card contains instructions on how to attend the Special Meeting, along with your 16-digit control number. You will need your 16-digit control number for access. If you do not have your 16-digit control number, please contact our proxy solicitor, Georgeson LLC (“Georgeson”), by telephone toll-free at (866) 529-0639 or by email at allete@georgeson.com.

Q29:	Who can answer any questions I may have about the Special Meeting or the Merger?

A:	If you have any questions or need assistance in voting your shares of Company Common Stock, please contact our proxy solicitor, Georgeson, by telephone toll-free at (866) 529-0639 or by email at allete@georgeson.com.

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SUMMARY

On May 5, 2024, ALLETE, Inc. (the “Company”) entered into that certain Agreement and Plan of Merger (the “Merger Agreement”), by and among the Company, Alloy Parent LLC, a Delaware limited liability company (“Parent”), and Alloy Merger Sub LLC, a Delaware limited liability company and wholly owned subsidiary of Parent (“Merger Sub”). Pursuant to the Merger Agreement, on the terms and subject to the conditions set forth therein, Merger Sub will merge with and into the Company with the Company continuing as the surviving corporation (the “Merger”).

This summary highlights selected information that is contained elsewhere in this proxy statement. It does not contain all of the information that may be important to you with regard to the Merger, the Merger Agreement, the special meeting of the shareholders of the Company (the “Special Meeting”) or any other items contained herein. To understand the Merger more fully and for a more complete description of the legal terms of the Merger, you should carefully read and consider this entire proxy statement and the annexes to this proxy statement, including, but not limited to, the Merger Agreement, along with all of the documents to which we refer in this proxy statement, as they contain important information about, among other things, the Merger and how it affects you. You may obtain information incorporated by reference in this proxy statement without charge by following the instructions under “Where You Can Find More Information” beginning on page 104. The Merger Agreement is attached as Annex A to this proxy statement. You should carefully read and consider the entire Merger Agreement, which is the legal document that governs the Merger.

The proxy statement is dated [•], 2024, and is first being mailed to our shareholders on or about [•], 2024. Except as otherwise specifically noted in this proxy statement, “ALLETE,” “we,” “our,” “us,” the “Company” and similar words refer to ALLETE, Inc. In addition, the terms “shareholder,” “shareholders,” “you” and “yours” throughout this proxy statement refers to a holder of shares of our common stock, no par value.

The Companies Involved in the Merger (see page 12)

ALLETE, Inc.

The Company is an energy company headquartered in Duluth, Minnesota. The Company’s largest business unit, Minnesota Power, is an electric utility which serves 150,000 residents, 14 municipalities, and some of the nation’s largest industrial customers. In addition to Minnesota Power, the Company owns Superior Water, Light and Power, based in Superior, Wisconsin; ALLETE Clean Energy, based in Duluth, Minnesota; BNI Energy, based in Bismarck, North Dakota; and New Energy Equity, headquartered in Annapolis, Maryland; and has an 8% equity interest in the American Transmission Co.

The Company was incorporated in Minnesota in 1906.

The principal executive offices of the Company are ALLETE, Inc., 30 West Superior Street, Duluth, Minnesota 55802-2093, Attention: Legal Department.

Additional information about the Company is included in documents incorporated by reference in this proxy statement. See the section entitled “Where You Can Find More Information” beginning on page 104.

Alloy Parent LLC

Parent was formed solely for the purpose of entering into the Merger Agreement and completing the Merger and the other transactions contemplated by the Merger Agreement, including the financing related to the Merger. Parent will, upon the consummation of the Merger (the “Closing” and, the date the Closing occurs, the “Closing Date”), be jointly owned by a wholly owned subsidiary of Canada Pension Plan Investment Board and affiliates of investment vehicles affiliated with one or more funds, accounts or other entities managed or advised by Global Infrastructure Partners, namely (1) Global Infrastructure Partners V-A/B, L.P., Global Infrastructure Partners V-C Intermediate, L.P. and Global Infrastructure Partners V-C2 Intermediate, L.P., investment vehicles affiliated with GIP (as defined below) (collectively, “GIP V”), (2) Tower Bridge Infrastructure Partners, L.P., an investment vehicle managed by GIP on behalf of California Public Employees’ Retirement System (“CalPERS”), and (3) CPP Investment Board Private Holdings (6) Inc., an investment vehicle affiliated with CPP Investments (as defined below) (such entities listed in the foregoing clauses (1), (2) and (3), collectively, the “Sponsors,” and each, a “Sponsor”).

The principal executive offices of Parent are c/o Global Infrastructure Management, LLC, 1345 Avenue of the Americas, 30th Floor, New York, New York 10105, Attention: Legal Department.

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Alloy Merger Sub LLC

Merger Sub was formed solely for the purpose of entering into the Merger Agreement and completing the Merger and the other transactions contemplated by the Merger Agreement. Merger Sub is a wholly owned subsidiary of Parent and has not engaged in any business except for activities incidental to its formation and as contemplated by the Merger Agreement. Subject to the terms of the Merger Agreement, upon the completion of the Merger, Merger Sub will cease to exist, and the Company will continue as the surviving corporation.

The principal executive offices of Merger Sub are c/o Global Infrastructure Management, LLC, 1345 Avenue of the Americas, 30^th Floor, New York, New York 10105, Attention: Legal Department.

Canada Pension Plan Investment Board

Canada Pension Plan Investment Board, a Canadian federal Crown corporation (“CPP Investments”), is a professional investment management organization that manages the fund in the best interest of the more than 22 million contributors and beneficiaries of the Canada Pension Plan. In order to build diversified portfolios of assets, investments are made around the world in public equities, private equities, real estate, infrastructure and fixed income. Headquartered in Toronto, with offices in Hong Kong, London, Mumbai, New York City, San Francisco, São Paulo and Sydney, CPP Investments is governed and managed independently of the Canada Pension Plan and at arm’s length from governments. On March 31, 2024, the Fund totaled C$632.3 billion.

The principal executive offices of CPP Investments are c/o Canada Pension Plan Investment Board, One Queen Street East, Suite 2500, Toronto, Ontario, M5C 2W5, Canada, Attention: Legal Counsel.

Global Infrastructure Partners

Global Infrastructure Management, LLC (“Global Infrastructure Partners” or “GIP”) is a leading infrastructure investor that specializes in investing in, owning and operating some of the largest and most complex assets across the energy, transport, digital infrastructure and water and waste management sectors. With decarbonization central to its investment thesis, GIP is well positioned to support the global energy transition. Headquartered in New York, GIP has offices in Brisbane, Dallas, Hong Kong, London, Melbourne, Mumbai, Singapore, Stamford and Sydney. GIP has approximately $115 billion in assets under management, as of March 31, 2024. The companies in GIP’s equity portfolios have combined annual revenues of approximately $73 billion and employ over 115,000 people, as of December 31, 2023.

Concurrently with the execution of the Merger Agreement, CPP Investments and GIP agreed to provide funding to Parent in connection with the Closing.

The principal executive offices of GIP are c/o Global Infrastructure Management, LLC, 1345 Avenue of the Americas, 30^th Floor, New York, New York 10105, Attention: Legal Department.

The Proposed Merger (see page 17)

Under the terms of the Merger Agreement, Merger Sub, a wholly owned subsidiary of Parent, will merge with and into the Company with the Company continuing as the surviving corporation and becoming a subsidiary of Parent. The Merger will be completed only after the satisfaction or waiver, if applicable, of the conditions to the completion of the Merger, as discussed below.

The Merger Agreement is attached as Annex A to this proxy statement. We encourage you to read the Merger Agreement carefully and fully, as it is the legal document that governs the Merger.

Effects of the Merger; Merger Consideration (see page 68)

Under the terms of the Merger Agreement, Merger Sub will merge with and into the Company with the Company continuing as the surviving corporation in the Merger and becoming a wholly owned subsidiary of Parent. As a result of the Merger, the common stock, no par value, of the Company (“Company Common Stock”) will no longer be publicly traded and will be delisted from the New York Stock Exchange (the “NYSE”). In addition, the Company Common Stock will be deregistered under the Securities Exchange Act of 1934, as amended (the “Exchange Act”), and we will no longer file periodic reports with the United States Securities and Exchange Commission (the “SEC”). If the Merger is completed, you will not own any shares of the surviving corporation.

On and subject to the terms and conditions set forth in the Merger Agreement, at the effective time of the Merger (the “Effective Time”), each share of Company Common Stock issued and outstanding immediately prior to the

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Effective Time (other than shares of Company Common Stock held by any holder who properly exercises dissenters’ rights under Minnesota law in respect of such shares and, if applicable, one share of Company Common Stock held by GIP or its affiliate, which shall be converted into one share of Class B stock of the surviving corporation) shall be converted into the right to receive $67.00 in cash, without interest (the “Merger Consideration”).

In addition, while it is not part of the Merger Consideration, you will continue to be entitled to receive any dividends declared by us prior to the completion of the Merger, including a “stub period” dividend with respect to the period between the last quarterly dividend paid by us and the Effective Time.

Certain U.S. Federal Income Tax Considerations of the Merger (see page 55)

The receipt of cash in exchange for shares of Company Common Stock pursuant to the Merger will generally be a taxable transaction for U.S. federal income tax purposes. Such receipt of cash by a holder of Company Common Stock that is a U.S. Holder will generally result in the recognition of gain or loss in an amount equal to the difference, if any, between (1) the amount of cash received in the Merger and (2) such U.S. Holder’s adjusted tax basis in the shares of Company Common Stock exchanged therefor. Such gain or loss will generally constitute capital gain or loss and will constitute long-term capital gain or loss if the U.S. Holder’s holding period for the Company Common Stock exchanged is more than one year as of the date of the Merger. A Non-U.S. Holder generally will not be subject to U.S. federal income tax with respect to the exchange of shares of Company Common Stock for cash in the Merger unless such Non-U.S. Holder has certain connections to the United States.

This proxy statement contains a general discussion of U.S. federal income tax considerations relating to the Merger. No information is provided with respect to the tax consequences of the Merger under any U.S. federal law other than income tax laws (including, for example, the U.S. federal estate, gift, Medicare and alternative minimum tax laws), or any applicable state, local or non-U.S. tax laws. Consequently, holders of Company Common Stock should consult their tax advisor as to the tax consequences of the Merger relevant to their particular circumstances, including the applicability and effect of any state, local, non-U.S. or other tax laws and of changes in those laws.

Approvals Required by Shareholders in Connection with the Proposals (see page 14)

The holders of the outstanding shares of Company Common Stock as of the close of business on [•], 2024 (the “Record Date”), are entitled to one vote for each share held of record on each matter presented to a vote at the Special Meeting of the shareholders of the Company to which this proxy statement relates. However, unless the holder votes at the Special Meeting, shares for which no proxy is returned (whether registered in the name of the actual holder or in the name of a broker, bank or other nominee) will not be voted and will have the same effect as a vote AGAINST a Merger Proposal. Only shareholders of record as of the close of business on the Record Date will be entitled to vote at the Special Meeting or at any adjournment of the Special Meeting.

The following approvals are required by our shareholders in order to approve the proposals at the Special Meeting in connection with the Merger:

•	The affirmative vote of the holders of a majority of all of the outstanding shares of Company Common Stock entitled to vote at the Special Meeting is required to approve and adopt the Merger Agreement and approve the transactions contemplated thereby, including the Merger (the “Merger Proposal”).

•

The affirmative vote of the holders of a majority of the shares of Company Common Stock entitled to vote at, and represented in person (by Internet) or by proxy at, the Special Meeting is required to approve the nonbinding, advisory proposal to approve compensation that will or may become payable by us to our named executive officers in connection with the Merger (the “Merger-Related Compensation Proposal”). Because the vote on the Merger-Related Compensation Proposal is advisory only, it will not be binding on us. Accordingly, if the Merger Proposal is approved and the Merger is completed, the compensation will be payable, subject only to the conditions applicable thereto, regardless of the outcome of the nonbinding, advisory vote of our shareholders on the Merger-Related Compensation Proposal.

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•

The affirmative vote of the holders of a majority of the shares of Company Common Stock entitled to vote at, and represented in person (by Internet) or by proxy at, the Special Meeting is required to approve any motion to adjourn the Special Meeting, if such proposal is called at the Special Meeting (the “Special Meeting Adjournment Proposal”).

Our directors and executive officers beneficially owned [•] shares of Company Common Stock as of the close of business on the Record Date for the Special Meeting. These shares represent in total [•]% of Company Common Stock outstanding and entitled to vote as of the close of business on the Record Date. We currently expect that each of our directors and executive officers will vote their shares of Company Common Stock in favor of all of the proposals to be voted on at the Special Meeting, although none of them has entered into any agreements obligating them to do so.

The approval of the Merger Proposal by our shareholders is a condition to completion of the Merger. Approval of the Merger-Related Compensation Proposal is not required to complete the Merger, but federal securities laws require that we submit the matter to our shareholders for an advisory vote.

Dissenters’ Rights (see page 98 and Annex D)

If the Merger Proposal is approved by the Company’s shareholders at the Special Meeting and the Merger is consummated, any of the Company’s shareholders who do not vote in favor of the Merger Proposal and who otherwise strictly comply with Sections 302A.471 and 302A.473 of the Minnesota Business Corporation Act (the “MBCA”) will be entitled to demand payment for their shares and an appraisal of the value of those shares. The rights of dissenting shareholders under the MBCA are discussed in the section entitled “Dissenters’ Rights” beginning on page 98. Any exercise of dissenters’ rights must be in accordance with the procedures set forth in Sections 302A.471 and 302A.473 of the MBCA, which sections are reproduced in their entirety as Annex D to this proxy statement.

Treatment of Company Equity Compensation Awards (see page 69)

Generally speaking, Company equity compensation awards will be treated as follows at the Effective Time:

•

Vested RSUs. Each RSU that is outstanding and vested immediately prior to the Effective Time will be canceled as of the Effective Time and converted into a right to receive an aggregate amount, without interest, in cash equal in value to (x) the number of shares of Company Common Stock subject to such vested RSU immediately prior to the Effective Time after giving effect to the accumulation of dividend equivalents credited in respect of such RSU, multiplied by (y) the Merger Consideration, payable following the Closing Date at such time as may be required to comply with tax rules governing deferred compensation, subject to deduction for any applicable withholding taxes.

•

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calendar months within the vesting period that have elapsed as of the Effective Time in relation to the number of calendar months in the entire vesting period (such portion of the PSA, the “Applicable PSAs”), will be made as soon as reasonably practicable following the Closing Date, subject to deduction for any applicable withholding taxes. At the Effective Time, any outstanding portion of each converted PSA that is not comprised of Applicable PSAs (which will include the entirety of any PSA granted after the signing of the Merger Agreement) will continue to have, and payment will be subject to, the same terms and conditions (including time-based vesting conditions, but excluding performance-based vesting conditions) as applied to the corresponding PSAs immediately prior to the Effective Time.

•

Treatment of the Company’s Direct Stock Purchase and Dividend Reinvestment Plan (see page 70)

Treatment of the Company’s Employee Stock Purchase Plan (see page 70)

Interests of the Company’s Directors and Executive Officers in the Merger (see page 61)

In considering the recommendation of the board of directors of the Company (the “Board”) that the Company’s shareholders vote to approve the Merger Proposal, the Company’s shareholders should be aware that the Company’s directors and executive officers may have interests in the Merger that are different from, or in addition to, the interests of the Company shareholders generally. These interests include, among others:

•	accelerated vesting at the Effective Time, as described further below, of a portion of certain PSAs held by our executive officers;

•	accelerated payment of a pro-rata portion of the executive officers’ annual bonuses;

•	payment of severance payments and benefits that executive officers may become entitled to receive upon a qualifying termination of employment following the Effective Time; and

•	rights to indemnification, advancement of expenses, and directors’ and officers’ liability insurance that will survive the completion of the Merger.

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The Board was aware of these interests and considered them, among other matters, in evaluating and approving the Merger Agreement and the Merger, and in recommending the approval of the Merger Proposal and the Merger-Related Compensation Proposal to the Company’s shareholders. For additional information, see the section entitled “Interests of the Company’s Directors and Executive Officers in the Merger” beginning on page 61.

Dividends (see page 92)

The Company has paid a total of $155.5 million in cash dividends during the 12 months ended December 31, 2023. On January 26, 2024, the Board declared a quarterly cash dividend of $0.705 per share of Company Common Stock payable on March 1, 2024, to shareholders of record as of the close of business on February 15, 2024. On April 25, 2024, the Board declared a quarterly cash dividend of $0.705 per share of Company Common Stock payable on June 1, 2024, to shareholders of record as of the close of business on May 15, 2024.

Under the terms of the Merger Agreement, we have agreed not to declare dividends, set aside or pay any dividends on, or make any other distributions (whether in cash, stock or property or any combination thereof) in respect of, any of our capital stock, other equity interests or voting securities, except for (1) quarterly cash dividends payable by us in respect of shares of Company Common Stock on a schedule consistent with our past practices in an amount not to exceed 5% per share more than the dividend payable during the prior 12-month period, (2) dividends and distributions by a direct or indirect wholly owned subsidiary of the Company solely to its parent, (3) dividends required under certain tax equity transaction documents, and (4) a “stub period” dividend to holders of record of Company Common Stock as of immediately prior to the Effective Time equal to the product of (x) the number of days from the record date for payment of the last quarterly dividend paid by us prior to the Effective Time, multiplied by (y) a daily dividend rate determined by dividing the amount of the last quarterly dividend paid prior to the Effective Time by 91.

Recommendation of the Company’s Board (see page 37)

The Board has reviewed and considered the terms of the Merger and the Merger Agreement and has unanimously determined that the Merger is advisable and in the best interests of the Company and unanimously recommends that our shareholders vote FOR the Merger Proposal. The Board also unanimously recommends that our shareholders vote FOR the Merger-Related Compensation Proposal and FOR any Special Meeting Adjournment Proposal, if presented.

Opinion of J.P. Morgan Securities LLC (see page 41 and Annex B)

At the meeting of the Board on May 5, 2024, J.P. Morgan Securities LLC (“J.P. Morgan”) rendered its oral opinion to the Board, which was subsequently confirmed by delivery of a written opinion, dated as of May 5, 2024, that, as of the date of such opinion, and based upon and subject to the factors and assumptions set forth in its opinion, the Merger Consideration to be paid to the holders of Company Common Stock in the proposed Merger was fair, from a financial point of view, to such holders.

The full text of the written opinion of J.P. Morgan dated May 5, 2024, which sets forth, among other things, the assumptions made, matters considered and limits on the review undertaken, is attached as Annex B to this proxy statement and is incorporated herein by reference. The summary of the opinion of J.P. Morgan set forth in this proxy statement is qualified in its entirety by reference to the full text of such opinion. The Company’s shareholders are urged to read the opinion in its entirety. J.P. Morgan’s written opinion was addressed to the Board (in its capacity as such) in connection with and for the purposes of its evaluation of the proposed Merger, was directed only to the Merger Consideration to be paid in the proposed Merger and did not address any other aspect of the proposed Merger. J.P. Morgan expressed no opinion as to the fairness of any consideration paid in connection with the Merger to holders of any other class of securities, creditors or other constituencies of the Company or as to the underlying decision by the Company to engage in the proposed Merger. The issuance of J.P. Morgan’s opinion was approved by a fairness committee of J.P. Morgan. The opinion does not constitute a recommendation to any shareholder of the Company as to how such shareholder should vote with respect to the proposed Merger or any other matter. See the section entitled “The Proposed Merger—Opinion of J.P. Morgan Securities LLC” beginning on page 41.

Opinion of Houlihan Lokey Capital, Inc. (see page 46 and Annex C)

On May 5, 2024, Houlihan Lokey Capital, Inc. (“Houlihan Lokey”) orally rendered its opinion to the Board (which was subsequently confirmed in writing by delivery of Houlihan Lokey’s written opinion addressed to the Board dated May 5, 2024), to the effect that, as of such date, and based on and subject to the assumptions, limitations,

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qualifications and other matters set forth in its opinion, the Merger Consideration to be received by the holders of Company Common Stock in the Merger pursuant to the Merger Agreement was fair, from a financial point of view, to such holders.

Houlihan Lokey’s opinion was directed to the Board (in its capacity as such) and only addressed whether the Merger Consideration to be received by the holders of Company Common Stock in the Merger pursuant to the Merger Agreement was fair, from a financial point of view, to such holders and did not address any other aspect or implication of the Merger or any other agreement, arrangement or understanding. The summary of Houlihan Lokey’s opinion in this proxy statement is qualified in its entirety by reference to the full text of its written opinion, which is attached as Annex C to this proxy statement and describes the procedures followed, assumptions made, qualifications and limitations on the review undertaken and other matters considered by Houlihan Lokey in connection with the preparation of its opinion. However, neither Houlihan Lokey’s opinion nor the summary of its opinion and the related analyses set forth in this proxy statement are intended to be, and do not constitute, advice or a recommendation to the Board, any security holder or any other person as to how to act or vote with respect to any matter relating to the Merger or otherwise. See the section entitled “The Proposed Merger—Opinion of Houlihan Lokey Capital, Inc.” beginning on page 46.

Preferred Equity Investment (see page 22)

Under the terms of the Merger Agreement, the Company and Parent agreed that (1) at any time during the period from July 1, 2025 to September 30, 2025, we may provide Parent with written notice of our intent to raise equity capital in an amount of no less than $50 million and up to $150 million and (2) at any time during the period from October 1, 2025 to December 31, 2025, we may provide Parent with written notice of our intent to raise equity capital in an amount of no less than $50 million and up to $300 million (less any amounts called by us in connection with any initial equity capital raise between July 1, 2025 and September 30, 2025), and, in each case, Parent shall have 10 business days to notify us of its election to participate in such equity capital raises by funding such amounts in exchange for shares of the Company’s Serial Preferred Stock A, no par value, having the rights, preferences and privileges to be set forth in a certificate of designation and consistent with the terms set forth in Exhibit D of the Merger Agreement (the “Serial Preferred Stock A”).

If Parent elects to participate in either of the equity capital raises, the Company and Parent will (1) execute definitive transaction documents in accordance with the terms set forth in Exhibit D of the Merger Agreement within five business days of Parent’s election in connection with the applicable equity raise and (2) use reasonable best efforts to consummate such transactions as soon as reasonably practicable, subject to any required regulatory approvals. In addition, to the extent permitted by applicable law (including the MBCA), the definitive transaction documents will include a waiver of such provisions of the Company’s organizational documents as may be inconsistent with the terms set forth in Exhibit D of the Merger Agreement, and the Company and Parent agreed to cooperate and use reasonable best efforts to ensure that such provisions will not apply to the shares of Serial Preferred Stock A issued to Parent in connection with the equity capital raises (the “Preferred Shares”).

If Parent declines to participate in the equity capital raises or fails to provide notice within the required 10 business day period with respect to the applicable equity capital raise, we will thereafter be permitted to issue Company Common Stock in the public markets for an amount equal to any unfunded amounts under any such equity capital raises.

In the event that Parent has been issued Preferred Shares in connection with any of the Company’s equity capital raises and the Merger Agreement is terminated in accordance with its terms, upon Parent’s request, the Company shall (1) file, within six months of receipt of such request, a registration statement registering the re-sale of such Preferred Shares by Parent and use reasonable best efforts to cause such registration statement to become effective, (2) provide customary assistance to Parent in conducting a to-be-agreed upon number of underwritten offerings of such Preferred Shares and (3) use reasonable best efforts to list such Preferred Shares for trading on the NYSE.

Financing of the Merger Consideration (see pages 19 and 84)

As of the date of this proxy statement, the maximum estimated total amount of funds required to complete the Merger is approximately $4.43 billion. Parent and Merger Sub expect this amount to be funded through a combination of the following:

•	debt financing in an aggregate amount of up to $850 million. See the section entitled “The Proposed Merger—Debt Commitment Letter” beginning on page 19; and

•	equity financing in an aggregate amount of up to approximately $3.58 billion. See the section entitled “The Proposed Merger—Equity Commitment Agreements” beginning on page 21.

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Completion of the Merger is Subject to Regulatory Clearance (see page 56)

To complete the transactions contemplated by the Merger Agreement, including the Merger, the Company and Parent need to obtain approvals, orders, clearances or consents from, or make filings with, public utility, antitrust and other regulatory authorities, including:

1.	filings with, and the consent of, the Minnesota Public Utilities Commission (the “MPUC”);

2.	filings with, and the consent of, the Public Service Commission of Wisconsin (the “PSCW”);

the filing of notification and report forms with the Antitrust Division of the Department of Justice (the “DOJ”) and the Federal Trade Commission under the Hart-Scott-Rodino Antitrust Improvements Act of 1976, as amended, and the rules and regulations promulgated thereunder (the “HSR Act”), and expiration or early termination of any applicable waiting periods under the HSR Act;

decision by the European Commission (the “EC”) pursuant to Council Regulation (EC) No 139/2004 (the “EC Merger Regulation”) declaring the transactions contemplated by the Merger Agreement, including the Merger, are compatible with the common market (or compatibility being deemed under Article 10(6) of the EC Merger Regulation);

5.	decision by the Chinese State Administration for Market Regulation (the “SAMR”) pursuant to the Chinese Anti-Monopoly Law;

6.	approval by the Turkish Competition Authority (the “Turkish Competition Authority”) pursuant to Communiqué No. 2010/4 on Mergers and Acquisitions Requiring the Approval of the Competition Authority;

7.	filings with, and the consent of, the Federal Energy Regulatory Commission (the “FERC”) under Section 203 of the Federal Power Act (the “FPA”);

8.	filings with, and the consent of, the Federal Communications Commission (the “FCC”) to assign or transfer control of our FCC licenses; and

9.	filings with, and the consent of, the Committee on Foreign Investment in the United States, or any member agency thereof acting in its capacity as a member agency (“CFIUS” and together with the foregoing items, the “Required Approvals”).

Subject to the terms and conditions of the Merger Agreement, each of the Company and Parent shall use its reasonable best efforts to take, or cause to be taken, all actions, and do, or cause to be done, and assist and cooperate with the other party in doing, all things necessary to cause the conditions to the Closing to be satisfied as promptly as reasonably practicable or to effect the Closing as promptly as reasonably practicable.

See the section entitled “The Proposed Merger—Regulatory Matters Relating to the Merger” beginning on page 56 for additional detail regarding the regulatory approval process.

How the Merger Agreement May be Terminated by the Company or Parent (see page 88)

The Merger Agreement may be terminated by the Company and Parent at any time prior to the Effective Time, whether before or after the Company shareholder approval, by mutual written consent.

In addition, the Merger Agreement may be terminated by either the Company or Parent in accordance with its terms at any time prior to the Effective Time, whether before or after the Company shareholder approval:

•	by Parent or the Company if:

○

the Closing is not completed by August 5, 2025 (as it may be extended, the “End Date”); provided that if, prior to the End Date, all of the conditions to the Closing set forth in the Merger Agreement have been satisfied or waived, as applicable, except for any conditions regarding Required Approvals or absence of legal restraints (only if such legal restraint is in respect of a Required Approval) and those conditions that by their nature are to be satisfied at the Closing and are capable of being satisfied if the Closing were to take place on such date, the End Date will automatically be extended for up to two successive three-month periods after August 5, 2025; provided, however, that neither party may avail itself of such right to terminate the Merger Agreement if it has breached any of its covenants or agreements in the Merger Agreement which has resulted in (1) the failure to satisfy the Closing conditions prior to the End Date or (2) the failure of the Closing to have occurred prior to the End Date;

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○

the condition regarding the absence of legal restraints on the Merger has not been satisfied and such legal restraint giving rise to such nonsatisfaction has become final and nonappealable; provided that neither party may avail itself of such right to terminate the Merger Agreement if such party’s failure to comply with its obligations under the Merger Agreement to use reasonable best efforts to obtain regulatory approvals is the primary cause of any such legal restraint; or

○	the Company shareholder approval is not obtained at the Special Meeting and at which a vote on the approval of the Merger Agreement was taken, or at any adjournment of the Special Meeting;

•	by Parent if:

○	at any time prior to the receipt of the Company shareholder approval, if the Board or any committee thereof effects a change of its recommendation; or

○

if (1) there is a breach by us of our representations, warranties, covenants or agreements under the Merger Agreement such that the conditions relating to the accuracy of our representations and warranties and our performance or compliance with our covenants and agreements would not reasonably be capable of being satisfied, (2) Parent has delivered written notice to us of such breach and (3) such breach is not reasonably capable of being cured by the End Date or such breach is not cured within 30 days after our receipt of Parent’s notice; provided that Parent or Merger Sub is not then in material breach of any of their material representations, warranties or covenants under the Merger Agreement; or

•	by the Company if:

○

at any time prior to the receipt of the Company shareholder approval, if the Board effects a change of recommendation with respect to a Company superior proposal and has approved, and, concurrently with the termination of the Merger Agreement, we have entered into an acquisition agreement providing for the implementation of such Company superior proposal in compliance with our obligations under the Merger Agreement, and we pay the applicable termination fee prior to or concurrently with such termination;

○

if (1) there is a breach by Parent or Merger Sub of their representations, warranties, covenants or agreements under the Merger Agreement such that the conditions relating to the accuracy of Parent’s and Merger Sub’s representations and warranties and Parent’s and Merger Sub’s performance or compliance with their respective covenants and agreements would not reasonably be capable of being satisfied, (2) we have delivered written notice to Parent of such breach and (3) such breach is not reasonably capable of being cured by the End Date or such breach is not cured within 30 days after Parent’s receipt of our notice; provided that we are not then in material breach of any of our material representations, warranties or covenants under the Merger Agreement; or

○

if (1) all of the conditions set forth in the Merger Agreement have been satisfied or waived in accordance with the terms of the Merger Agreement as of the date that the Merger should have closed (except for those conditions that by their terms are to be satisfied at the Closing), (2) Parent and Merger Sub do not consummate the Merger on the day that the Merger should have been consummated pursuant to the terms of the Merger Agreement, (3) we have delivered to Parent an irrevocable notice that we stand ready, willing and able to consummate the Closing on the date such notice is delivered and through the end of the next succeeding five business days, and (4) Parent and Merger Sub fail to consummate the Merger within five business days following their receipt of written notice from us requesting such consummation.

Termination Fees May be Payable Under Some Circumstances (see page 88)

If the Merger Agreement is terminated under specified circumstances relating to (1) failure to close prior to the End Date, (2) a final and nonappealable order enjoining the consummation of the Merger in connection with Required Approvals, (3) any terms, conditions, liabilities, obligations, commitments or sanctions imposed upon or otherwise affecting Parent, the Company and their respective affiliates in any claim, judgment or order of any governmental entity with respect to the transactions contemplated by the Merger Agreement, including any antitrust laws, that, individually or in the aggregate, has or would reasonably be expected to have a material adverse effect on the financial condition, assets, liabilities, businesses or results of operations of the Company and its subsidiaries or Parent

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and its affiliates, taken as a whole (referred to as a “Burdensome Condition”) in connection with Required Approvals, (4) failure by Parent to perform its covenants or agreements under the Merger Agreement pertaining to obtaining certain required regulatory approvals that has resulted in the failure of a condition to Closing or (5) failure by Parent to consummate the Merger once all of the conditions have been satisfied, Parent will be required to pay us a termination fee of either $164 million or $212 million, depending on the circumstances of any such termination. Notwithstanding anything to the contrary set forth in the Merger Agreement, in the event that Parent must pay a termination fee, Parent will have the right, at its election, to offset and reduce any such fee otherwise due and payable pursuant to the terms of the Merger Agreement, in whole or in part, on a dollar-for-dollar basis, by all or any portion of the aggregate liquidation preference of all the then-outstanding Preferred Shares held by Parent and any of its affiliates, if any, in exchange for the redemption of the applicable Preferred Shares associated with such offset with no obligations thereunder outstanding.

In addition, in the event that the Merger Agreement is terminated under specified circumstances relating to (1) the Company entering into a definitive acquisition agreement with respect to a Company superior proposal, (2) the Board changing its recommendation of the Merger prior to the approval of our shareholders of the Merger Agreement and the transactions contemplated thereunder, including the Merger, having been obtained, (3) an uncured breach of our representations, warranties, covenants or agreements under the Merger Agreement that resulted in the failure of a Closing condition, or (4) our receipt of a Company takeover proposal that is not withdrawn prior to termination of the Merger Agreement (or in certain circumstances, prior to the date of the Special Meeting) and our entry into a definitive agreement with respect to, or consummation of, a transaction with respect to a Company takeover proposal within 12 months after such termination, we will be required to pay Parent a termination fee of $116 million.

Delisting and Deregistration of Company Common Stock (see page 60)

If the Merger is completed, shares of Company Common Stock will be delisted from the NYSE and deregistered under the Exchange Act.

No Solicitation of Competing Proposals (see page 78)

We are subject to a “no shop” restriction that limits our ability to solicit alternative acquisition proposals or provide nonpublic information to, and engage in discussion with, third parties, except under limited circumstances to permit the Board to comply with its fiduciary duties.

We will not, and will not authorize our affiliates or any of our or their representatives to, either directly or indirectly, (1) solicit, initiate or knowingly encourage, induce or facilitate any Company takeover proposal, or inquiry, offer or proposal that could reasonably be expected to lead to a Company takeover proposal, or (2) participate in any discussions or negotiations with any persons regarding any Company takeover proposal, or inquiry, offer or proposal that could reasonably be expected to lead to a Company takeover proposal, including by furnishing or affording nonpublic information with respect any such proposal or inquiry. Under the Merger Agreement, we agreed to cease all existing discussions or negotiations with regard to any Company takeover proposal, or any inquiry, offer or proposal that would reasonably be expected to lead to a Company takeover proposal, and request the return or destruction of all confidential information previously furnished. Notwithstanding the foregoing, we may entertain a bona fide written Company takeover proposal that constitutes or could reasonably be expected to lead to a Company superior proposal, as described in the Merger Agreement, that does not result, directly or indirectly, from a breach of the Merger Agreement, prior to obtaining Company shareholder approval, subject to certain conditions stated in the Merger Agreement.

See the section entitled “The Merger Agreement—Non-Solicitation of Other Offers; Superior Proposal” beginning on page 78.

Post-Merger Governance and Management (see page 92)

Under the Merger Agreement, Parent and Merger Sub have agreed, among other things, that certain commitments regarding governance and management following the Merger will be included in the initial regulatory approval applications submitted to the MPUC and PSCW.

Litigation Relating to the Merger (see page 60)

Lawsuits may be filed against the Company, the Board or the Company’s officers in connection with the Merger, which could prevent or delay completion of the Merger or result in substantial costs to the Company, including any costs associated with indemnification. As of the date of this proxy statement, no such lawsuits have been filed.

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CAUTIONARY STATEMENT REGARDING FORWARD-LOOKING STATEMENTS

This proxy statement, and the documents incorporated by reference in this proxy statement, include “forward-looking statements” within the meaning of the federal securities laws, including safe harbor provisions of the Private Securities Litigation Reform Act of 1995, Section 27A of the Securities Act of 1933, as amended (the “Securities Act”), and Section 21E of the Exchange Act, including statements regarding the proposed Merger, shareholder and regulatory approvals, the expected timetable for completing the proposed transaction and any other statements regarding the Company’s future expectations, beliefs, plans, objectives, financial conditions, assumptions or future events or performance that are not historical facts. This information may involve risks and uncertainties that could cause actual results to differ materially from such forward-looking statements. When used in this proxy statement, or any other documents, words such as “anticipate,” “believe,” “estimate,” “expect,” “forecast,” “target,” “could,” “goal,” “intend,” “objective,” “plan,” “project,” “seek,” “strategy,” “target,” “may,” “will” and similar expressions are intended to identify forward-looking statements. These forward-looking statements are based on the beliefs and assumptions of management at the time that these statements were prepared and are inherently uncertain. Such forward-looking statements are subject to risks and uncertainties that could cause actual results to differ materially from those expressed or implied in the forward-looking statements. In addition to any assumptions and other factors referred to specifically in connection with such forward-looking statements, factors that could cause our actual results to differ materially from those contemplated in any forward-looking statements include, among others, the following:

•

the risk that Parent or the Company may be unable to obtain governmental and regulatory approvals required for the Merger, or that required governmental and regulatory approvals or agreements with other parties interested therein may delay the Merger, may subject the Merger to or impose adverse conditions or costs, or may cause the parties to abandon the Merger;

•	the announcement and pendency of the Merger, during which the Company is subject to certain operating restrictions, could have an adverse effect on the Company’s businesses, results of operations, financial condition or cash flows;

•	the risk that we may be unable to obtain shareholder approval for the Merger;

•	the occurrence of any event, change or other circumstances that could give rise to the termination of the Merger Agreement or could otherwise cause the failure of the Merger to close;

•	the risk that a condition to Closing or the committed financing may not be satisfied;

•	the failure of Parent to obtain any equity, debt or other financing necessary to complete the Merger;

•	the outcome of any legal proceedings, regulatory proceedings or enforcement matters that may be instituted relating to the Merger;

•	the receipt of an unsolicited offer from another party to acquire our assets or capital stock that could interfere with the Merger;

•	the risk that the Merger may not be consummated on the timeline anticipated;

•	the costs incurred to consummate the Merger;

•	the risk that business disruption related to the Merger may make it more difficult to maintain relationships with customers, employees, regulators or suppliers;

•	the Company’s ability to attract and retain personnel while the Merger is pending;

•	the diversion of management time and attention on the Merger; and

•

other risks detailed in our filings with the SEC, including our most recent Form 10-K for the fiscal year ended December 31, 2023, and in subsequently filed Forms 10-Q and 8-K, and in any other documents filed by us with the SEC after the date thereof. See the section entitled “Where You Can Find More Information” beginning on page 104.

Any such forward-looking statement is qualified by reference to these risks and factors. The Company cautions against putting undue reliance on forward-looking statements or projecting any future results based on such statements. Forward-looking statements speak only as of the date of the particular statement, and the Company does not undertake to update any forward-looking statement contained herein.

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THE COMPANIES

ALLETE, Inc.

The principal executive offices of the Company are ALLETE, Inc., 30 West Superior Street, Duluth, Minnesota 55802-2093, Attention: Legal Department.

The Company was incorporated in Minnesota in 1906.

Alloy Parent LLC

The principal executive offices of Parent are c/o Global Infrastructure Management, LLC, 1345 Avenue of the Americas, 30^th Floor, New York, New York 10105, Attention: Legal Department.

Alloy Merger Sub LLC

The principal executive offices of Merger Sub are c/o Global Infrastructure Management, LLC, 1345 Avenue of the Americas, 30^th Floor, New York, New York 10105, Attention: Legal Department.

Canada Pension Plan Investment Board

CPP Investments is a professional investment management organization that manages the fund in the best interest of the more than 22 million contributors and beneficiaries of the Canada Pension Plan. In order to build diversified portfolios of assets, investments are made around the world in public equities, private equities, real estate, infrastructure and fixed income. Headquartered in Toronto, with offices in Hong Kong, London, Mumbai, New York City, San Francisco, São Paulo and Sydney, CPP Investments is governed and managed independently of the Canada Pension Plan and at arm’s length from governments. On March 31, 2024, the Fund totaled C$632.3 billion.

The principal executive offices of CPP Investments are c/o Canada Pension Plan Investment Board, One Queen Street East, Suite 2500, Toronto, Ontario, M5C 2W5, Canada, Attention: Legal Counsel.

Global Infrastructure Partners

GIP is a leading infrastructure investor that specializes in investing in, owning and operating some of the largest and most complex assets across the energy, transport, digital infrastructure and water and waste management sectors. With decarbonization central to its investment thesis, GIP is well positioned to support the global energy transition. Headquartered in New York, GIP has offices in Brisbane, Dallas, Hong Kong, London, Melbourne, Mumbai, Singapore, Stamford and Sydney. GIP has approximately $115 billion in assets under management, as of March 31, 2024. The companies in GIP’s equity portfolios have combined annual revenues of approximately $73 billion and employ over 115,000 people, as of December 31, 2023.

Concurrently with the execution of the Merger Agreement, CPP Investments and GIP agreed to provide funding to Parent in connection with the Closing.

The principal executive offices of GIP are c/o Global Infrastructure Management, LLC, 1345 Avenue of the Americas, 30^th Floor, New York, New York 10105, Attention: Legal Department.

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INFORMATION ABOUT THE SPECIAL MEETING AND VOTING

The information contained in this proxy statement is furnished in connection with the solicitation of the enclosed proxy by and on behalf of the Board. The proxy will be used at the Special Meeting. We are first mailing this proxy statement and accompanying proxy card to our shareholders on or about [•], 2024.

Date, Time and Place

The Special Meeting will take place on [•], 2024 at [•] [a.m.] / [p.m.] Central Daylight Time. The Special Meeting will be held as a virtual-only webcast at [•].

Matters to be Considered

As of the date of this proxy statement, the only known business to be presented at the Special Meeting is (1) the Merger Proposal, (2) the Merger-Related Compensation Proposal, (3) any Special Meeting Adjournment Proposal, if presented, and (4) to transact any other business as may properly come before the Special Meeting or any adjournments of the Special Meeting. We are not aware of any other business to be acted upon at the Special Meeting. If any other matters properly come before the Special Meeting, or any adjourned meeting, all shares represented by valid proxies will be voted in accordance with the judgment of the appointed proxies.

Record Date; Quorum Requirement; Voting Rights

The holders of the outstanding shares of Company Common Stock as of the close of business on the Record Date are entitled to one vote for each share held of record on each matter presented to a vote at the Special Meeting to which this proxy statement relates. However, shares for which no proxy is returned (whether registered in the name of the actual holder or in the name of a broker, bank or other nominee) will not be voted. Only shareholders of record as of the close of business on the Record Date will be entitled to vote at the Special Meeting or at any adjournment of the Special Meeting. The Record Date for the Special Meeting is earlier than the date of the Special Meeting.

If you own shares of Company Common Stock as of the close of business on the Record Date but transfer your shares after the close of business on the Record Date but before the Special Meeting, you will retain your right to vote such shares at the Special Meeting, but you will no longer have the right to receive the Merger Consideration with respect to such shares. As of the close of business on the Record Date, there were [•] shares of Company Common Stock issued and outstanding and entitled to vote at the Special Meeting. The presence at the Special Meeting, via the Special Meeting website or by proxy, of the holders of a majority of the shares of Company Common Stock entitled to vote at the Special Meeting constitutes a quorum for the Special Meeting.

If you are a Company shareholder of record and you vote by mail, by telephone or by Internet or at the Special Meeting via the Special Meeting website, then your shares of Company Common Stock will be counted as part of the quorum. If you are a “street name” holder of shares of Company Common Stock and you provide your broker, bank or other nominee with voting instructions, then your shares will be counted in determining the presence of a quorum. If you are a “street name” holder of shares and you do not provide your broker, bank or other nominee with voting instructions, then your shares will not be counted as present in determining the presence of a quorum.

All shares of Company Common Stock held by shareholders of record that are present via the Special Meeting website or represented by proxy and entitled to vote at the Special Meeting, regardless of how such shares are voted or whether such shareholders abstain from voting, will be counted in determining the presence of a quorum. In the absence of a quorum, the Special Meeting may be adjourned.

Revoking Proxies

If you are a Company shareholder of record, you have the right to revoke your proxy at any time prior to the time your shares of Company Common Stock are voted at the Special Meeting. If you are a shareholder of record of Company Common Stock as of the close of business on the Record Date, your proxy can be revoked in several ways:

•	by entering a new vote by Internet or by telephone by 11:59 p.m. Eastern Daylight Time on [•], 2024;

•	by delivering a written revocation to the Company’s Corporate Secretary prior to the Special Meeting;

•	by submitting another valid proxy bearing a later date than the first proxy and that is received prior to the Special Meeting; or

•	by voting during the Special Meeting.

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However, if your shares of Company Common Stock are held in “street name,” you must check with your broker, bank or other nominee to determine how to revoke your proxy.

Required Vote

The affirmative vote of the holders of a majority of all of the outstanding shares of Company Common Stock entitled to vote at the Special Meeting is required to approve the Merger Proposal.

The affirmative vote of the holders of a majority of the shares of Company Common Stock entitled to vote at, and represented in person (by Internet) or by proxy at, the Special Meeting is required to approve the Merger-Related Compensation Proposal. Because the vote on the Merger-Related Compensation Proposal is advisory only, it will not be binding on us. Accordingly, if the Merger Proposal is approved and the Merger is completed, the compensation will be payable, subject only to the conditions applicable thereto, regardless of the outcome of the nonbinding, advisory vote of our shareholders on the Merger-Related Compensation Proposal.

Broker Non-Votes

Under the listing requirements of the NYSE, brokers, banks or other nominees who hold shares in “street name” for a beneficial owner of those shares typically have the authority to vote in their discretion on “routine” proposals when they have not received instructions from beneficial owners. However, brokers, banks or other nominees are not allowed to exercise their voting discretion with respect to the approval of matters that the NYSE determines to be “non-routine.” Accordingly, a “broker non-vote” occurs when a broker, bank or other nominee returns a valid proxy voting upon a matter or matters for which the applicable rules provide discretionary authority but does not vote on a particular item because it does not have discretionary authority to vote on the matter and has not received specific voting instructions from the beneficial owner of such shares.

•	your broker, bank or other nominee may not vote your shares of Company Common Stock on the Merger Proposal, which will have the same effect as a vote AGAINST such proposal;

•	your broker, bank or other nominee may not vote your shares of Company Common Stock on the Merger-Related Compensation Proposal, which will have no effect on the vote on such proposal; and

•	your broker, bank or other nominee may not vote your shares of Company Common Stock on any Special Meeting Adjournment Proposal, if presented, which will have no effect on the vote on such proposal.

Abstentions; Not Voting

For the Merger Proposal, an abstention or a failure to vote will have the same effect as a vote AGAINST such proposal.

Dissenters’ Rights

See the section entitled “Dissenters’ Rights” beginning on page 98 and the text of Sections 302A.471 and 302A.473 of the MBCA, which sections are reproduced in their entirety as Annex D to this proxy statement, for more information regarding dissenters’ rights.

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Shares Beneficially Owned by Directors and Officers

Our directors and executive officers beneficially owned [•] shares of Company Common Stock as of the close of business on the Record Date for the Special Meeting. These shares represented in total [•]% of Company Common Stock outstanding and entitled to vote as of the close of business on the Record Date. We currently expect that each of our directors and executive officers will vote their shares of Company Common Stock in favor of all the proposals to be voted on at the Special Meeting, although none of them has entered into any agreements obligating them to do so.

How Shares are Voted; Proxies

Shareholders of record may vote:

•	Voting by Telephone. You can vote by telephone by calling 1-800-690-6903 and following the instructions on the proxy card. Votes submitted by telephone must be submitted prior to 11:59 p.m. Eastern Daylight Time on [•], 2024;

•

•	Voting by Internet. You can vote by Internet at www.proxyvote.com by following the instructions on the proxy card. Votes submitted by Internet must be submitted prior to 11:59 p.m. Eastern Daylight Time on [•], 2024; or

•

If your shares of Company Common Stock are held by a broker, bank or other nominee, please review the voting options provided by them on your voter instruction form and act accordingly.

Whether or not you plan to attend the Special Meeting, your vote is important, and you are urged to vote as soon as possible. You may revoke your proxy prior to or at the Special Meeting. If your shares of Company Common Stock are held by a broker, bank or other nominee, it is important that they receive your voting instructions.

Other Business

We do not expect that any matter will be brought before the Special Meeting other than the Merger Proposal, the Merger-Related Compensation Proposal, and any Special Meeting Adjournment Proposal, if presented. If any other matters properly come before the Special Meeting, or any adjourned meeting, all shares represented by valid proxies will be voted in accordance with the judgment of the appointed proxies.

Solicitation of Proxies

The Board solicits your proxy for use at the Special Meeting. Shares of Company Common Stock held in your name and represented by your proxy will be voted as you instruct if your proxy is duly executed and returned prior to the Special Meeting. Shares represented by proxies that are returned signed but without instructions for voting will be voted as recommended by the Board. Shares represented by proxies that are returned unsigned or improperly marked will be treated as abstentions for voting purposes. You may vote during the Special Meeting by visiting [•] and entering the 16-digit control number included on your proxy card or on the instructions that accompanied your proxy materials. You may also revoke your proxy at any time before it is exercised by written notice to the Corporate Secretary of the Company received prior to the Special Meeting. See the section entitled “Information about the Special Meeting and Voting—Revoking Proxies” beginning on page 13 for additional detail.

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If your shares are held in “street name” through a broker, bank or other nominee, you will receive instructions on how to vote from your broker, bank or other nominee. You must follow their instructions in order for your shares to be voted.

The cost of preparing, assembling, printing, and mailing this proxy statement, the accompanying proxy card and any other material which may be furnished to shareholders in connection with the solicitation of proxies for the Special Meeting will be borne by us. We have retained Georgeson LLC (“Georgeson”) to assist in soliciting proxies from shareholders, including brokers’ accounts, at an estimated fee of $35,000 plus reasonable out-of-pocket expenses. In addition, some of our officers and other employees, who will receive no compensation in addition to their regular salaries for such solicitation, may solicit proxies by telephone, email, or personal visits. The cost of such additional solicitation, if any, will be borne by us. We expect to reimburse banks, brokerages, and other custodians of Company Common Stock for their reasonable charges and expenses in forwarding proxy materials to beneficial owners.

Adjournments

Our shareholders are being asked to approve any Special Meeting Adjournment Proposal, if presented, which will give our Board authority to adjourn the Special Meeting, including to solicit additional proxies in favor of the Merger Proposal if there are insufficient votes at the time of the Special Meeting to approve the Merger Proposal or in the absence of a quorum. The affirmative vote of the holders of a majority of the shares of Company Common Stock entitled to vote at, and represented in person (via the Internet) or by proxy at, the Special Meeting is required to approve any Special Meeting Adjournment Proposal, if presented.

If we adjourn the Special Meeting to a date that is 120 days or less from [•] and we do not set a new record date, we will announce prior to adjournment the date, time and location at which the Special Meeting will be reconvened. No other notice will be provided. If adjournment is for more than 120 days from [•], or if after the adjournment a new record date is fixed for the adjourned meeting, a notice of the adjourned meeting shall be given to each shareholder of record entitled to vote at the Special Meeting.

We are not aware of any other business to be acted upon at the Special Meeting. If any other matters properly come before the Special Meeting, or any adjourned meeting, all shares represented by valid proxies will be voted in accordance with the judgment of the appointed proxies.

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PROPOSAL 1: MERGER PROPOSAL

The discussion of the Merger in this section and elsewhere in this proxy statement is qualified in its entirety by reference to the complete text of the Merger Agreement, a copy of which is attached as Annex A to this proxy statement and is incorporated into this proxy statement by reference. This summary does not purport to be complete and may not contain all of the information about the Merger that is important to you. You are encouraged to read the Merger Agreement carefully and in its entirety as it is the legal document that governs the Merger.

THE PROPOSED MERGER

General

The Company and Parent agreed to the acquisition of the Company by Parent under the terms of the Merger Agreement. The Board is using this proxy statement to solicit proxies from the holders of Company Common Stock for use at the Special Meeting.

Merger Proposals

At the Special Meeting, holders of shares of Company Common Stock will be asked to vote on (1) the Merger Proposal, (2) the Merger-Related Compensation Proposal, (3) any Special Meeting Adjournment Proposal, if presented, and (4) any other business as may properly come before the Special Meeting or any adjournments of the Special Meeting. We are not aware of any other business to be acted upon at the Special Meeting. If any other matters properly come before the Special Meeting, or any adjourned meeting, all shares represented by valid proxies will be voted in accordance with the judgment of the appointed proxies.

Required Vote of Shareholders

If a quorum is present or represented at the Special Meeting, the affirmative vote of the holders of a majority of all of the outstanding shares of Company Common Stock entitled to vote at the Special Meeting is required to approve the Merger Proposal. Accordingly, for shareholders of record who are not present or represented at the Special Meeting and for beneficial owners who fail to instruct their broker, bank or other nominee to vote on any proposal, a failure to vote will have the same effect as a vote against the Merger Proposal.

The vote on the Merger Proposal is a vote separate and apart from the vote to approve either the Merger-Related Compensation Proposal or any Special Meeting Adjournment Proposal, if presented. Accordingly, a Company shareholder may vote to approve the Merger Proposal and vote not to approve the Merger-Related Compensation Proposal or any Special Meeting Adjournment Proposal, and vice versa.

The Merger will not be completed unless our shareholders approve the Merger Proposal. The Board unanimously recommends that shareholders vote FOR the Merger Proposal.

Effects of the Merger; Merger Consideration

As a result of the Merger, Company Common Stock will no longer be publicly traded and will be delisted from the NYSE. In addition, Company Common Stock will be deregistered under the Exchange Act, and we will no longer file periodic reports with the SEC. If the Merger is completed, you will not own any shares of the surviving corporation.

On and subject to the terms and conditions set forth in the Merger Agreement, at the Effective Time, each share of Company Common Stock issued and outstanding immediately prior to the Effective Time (other than shares of Company Common Stock held by any holder who properly exercises dissenters’ rights under Minnesota law in respect of such shares and, if applicable, one share of Company Common Stock held by GIP or its affiliate) shall be converted into the right to receive the Merger Consideration.

In addition, generally speaking, Company equity compensation awards will be treated as follows at the Effective Time:

•

Unvested RSUs. Each RSU that is outstanding and unvested immediately prior to the Effective Time will be canceled as of the Effective Time and converted into a contingent right to receive a converted cash award with respect to an aggregate amount, without interest, equal in value to (x) the number of shares of Company Common Stock subject to such RSU immediately prior to the Effective Time after giving effect

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to the accumulation of dividend equivalents credited in respect of such RSU, multiplied by (y) the Merger Consideration, subject to deduction for any applicable withholding taxes. Each such converted cash award will continue to have, and payment will be subject to, the same terms and conditions, including vesting conditions, as applied to the corresponding RSU immediately prior to the Effective Time.

•

Vested RSUs. Each RSU that is outstanding and vested immediately prior to the Effective Time will be canceled as of the Effective Time and converted into a right to receive an aggregate amount, without interest, in cash equal in value to (x) the number of shares of Company Common Stock subject to such vested RSU immediately prior to the Effective Time after giving effect to the accumulation of dividend equivalents credited in respect of such RSU, multiplied by (y) the Merger Consideration, payable following the Closing Date at such time as may be required to comply with tax rules governing deferred compensation, subject to deduction for any applicable withholding taxes.

•

PSAs. Each PSA that is outstanding and unvested immediately prior to the Effective Time will be canceled as of the Effective Time and converted into the right to receive, without interest, the Merger Consideration with respect to the number of shares of Company Common Stock underlying each PSA, based on attainment of the applicable performance metrics at the greater of (1) the number of PSAs determined in accordance with the performance criteria as otherwise provided in the applicable award agreement and as if the performance period ended as of the last business day immediately preceding the Closing Date or (2) the target award; in either case, pro-rated, after giving effect to the accumulation of dividend equivalents credited in respect of each such PSA. Payment with respect to the Applicable PSAs (i.e., the pro-rated portion of each PSA outstanding prior to the execution of the Merger Agreement, based on the number of whole calendar months within the vesting period that have elapsed as of the Effective Time in relation to the number of calendar months in the entire vesting period), will be made as soon as reasonably practicable following the Closing Date, subject to deduction for any applicable withholding taxes. At the Effective Time, any outstanding portion of each converted PSA that is not comprised of Applicable PSAs (which will include the entirety of any PSA granted after the signing of the Merger Agreement) will continue to have, and payment will be subject to, the same terms and conditions (including time-based vesting conditions, but excluding performance-based vesting conditions) as applied to the corresponding PSAs immediately prior to the Effective Time.

•

DSUs. Each DSU that is outstanding immediately prior to the Effective Time will be canceled as of the Effective Time and converted into a right to receive a cash payment with respect to an aggregate amount, without interest, equal in value to (x) the number of shares of Company Common Stock subject to such DSU immediately prior to the Effective Time after giving effect to the accumulation of dividend equivalents credited in respect of such DSU, multiplied by (y) the Merger Consideration. Each such converted cash award will continue to have, and payment will be subject to, the same terms and conditions, including elections with respect to time of payment, as applied to the corresponding DSU immediately prior to the Effective Time. No DSUs will become payable solely as a result of the Merger; however, certain non-employee directors may have elected to defer distribution of the DSUs until such time as the non-employee director has a “separation from service” pursuant to the non-employee director compensation deferral plan governing such deferred compensation. In such case, the non-employee director’s converted cash award will become payable at the Effective Time if the non-employee director ceases to serve as a director in connection with the Merger.

Further, to the extent permitted, the ESPP will terminate as of immediately prior to the Closing Date and no further rights will be granted or exercised under the ESPP thereafter. For any offering period in effect under the ESPP immediately prior to the Closing, the Company will establish a new ESPP Exercise Date, with the automatic purchase of Company Common Stock with respect to accumulated employee contributions of each participant under the Company ESPP in respect of such offering period to occur on such date. The amount of the accumulated contributions of each participant under the ESPP as of immediately prior to the ESPP Exercise Date will, to the extent not used to purchase Company Common Stock in accordance with the terms and conditions of the ESPP, be refunded to such participant as promptly as practicable following the Effective Time, without interest.

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Financing

As of the date of this proxy statement, the estimated maximum total amount of funds required to complete the Merger is approximately $4.43 billion. Parent and Merger Sub expect this amount to be funded through a combination of the following:

•	debt financing in an aggregate amount of up to $850 million. See the section entitled “The Proposed Merger—Debt Commitment Letter” beginning on page 19; and

•	equity financing in an aggregate amount of up to $3.58 billion. See the section entitled “The Proposed Merger—Equity Commitment Agreements” beginning on page 21.

The consummation of the Merger under the Merger Agreement is not subject to any financing condition.

Debt Commitment Letter

In connection with the entry into the Merger Agreement, MUFG Bank, Ltd. and Sumitomo Mitsui Banking Corporation (the “Initial Agents”) provided a commitment to Parent under a debt commitment letter, dated May 5, 2024 (as amended, restated, supplemented or otherwise modified in accordance its terms and the terms of the Merger Agreement, the “Debt Commitment Letter”), pursuant to which the Initial Agents committed to provide debt financing (the “Debt Financing”) consisting of (1) a senior secured term loan facility in an aggregate principal amount of up to $600 million, which may be borrowed by Parent (the “Holdco Term Loan Facility”), (2) a senior secured revolving credit facility in an aggregate principal amount of up to $100 million, which may be borrowed by Parent (the “Holdco Revolving Credit Facility” and, together with the Holdco Term Loan Facility, the “Holdco Facilities”), (3) a senior unsecured 364-day backstop term loan facility in an aggregate principal amount of up to $150 million, which may be borrowed by the Company (the “Backstop Term Loan Facility”), (4) a senior unsecured backstop revolving credit facility in an aggregate principal amount of up to $355 million, which may be borrowed by the Company (the “Backstop Revolving Credit Facility”) and (5) a senior unsecured backstop letter of credit facility in an aggregate principal amount of up to $160 million, which may be borrowed by the Company (the “Backstop L/C Facility”).

On June 4, 2024, certain requisite consents with respect to our existing credit agreement, dated as of January 10, 2019, by and among us, JPMorgan Chase Bank, N.A., as the administrative agent, and the lenders party thereto (as amended, restated, supplemented or otherwise modified from time to time in accordance with its terms) were obtained. As a result, the Initial Agents’ obligations to provide the Backstop Revolving Credit Facility have been terminated.

On June 6, 2024, certain requisite consents with respect to our existing standby letter of credit agreement, originally dated as of June 15, 2020, by and between us and Wells Fargo Bank, National Association (as amended, restated, supplemented or otherwise modified from time to time in accordance with its terms) were obtained and on June 7, 2024, all of the requisite consents with respect to our existing letter of credit agreement, originally dated as of June 11, 2020, by and among us, the lenders listed thereto and CoBank, ACB as the administrative agent (as amended, restated, supplemented or otherwise modified from time to time in accordance with its terms) were obtained. As a result, the Initial Agents’ obligations to provide the Backstop L/C Facility have been terminated.

The Initial Agents’ obligation to provide the Debt Financing under the Holdco Facilities is subject to customary conditions, including, without limitation, the following (subject to certain exceptions and qualifications as set forth in the Debt Commitment Letter):

•	the consummation of the Merger substantially concurrently with the initial borrowing under the Holdco Term Loan Facility;

•

the Sponsors making cash equity contributions to Parent (the “Equity Contribution”) substantially concurrently with the Closing Date in an amount equal to at least 75% of (1) the aggregate (x) principal amount of the commitments under the Holdco Term Loan Facility minus (y) the aggregate amount of cash on hand at the Company and its subsidiaries plus (2) the amount of the Equity Contribution;

•	the absence of a material adverse effect on the Company since the date of the Merger Agreement;

•	the payment of applicable fees and expenses;

•	the execution and delivery of definitive documentation with respect to the Holdco Facilities described in the Debt Commitment Letter;

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•	customary documentation and information for applicable “know your customer” and anti-money laundering rules and regulations;

•	the accuracy (subject to materiality standards set forth in the Debt Commitment Letter) of certain specified representations and warranties in the Merger Agreement and in the definitive documents with respect to the Debt Financing; and

•	the receipt of certain specified financial statements of the Company.

The Initial Agents’ obligation to provide the Debt Financing under the Backstop Term Loan Facility is subject to customary conditions, including, without limitation, the following (subject to certain exceptions and qualifications as set forth in the Debt Commitment Letter):

•	the payment of applicable fees and expenses;

•	the execution and delivery of definitive documentation with respect to the Backstop Term Loan Facility described in the Debt Commitment Letter;

•	customary documentation and information for applicable “know your customer” and anti-money laundering rules and regulations;

•	solely in respect of any funding to occur on the Closing Date:

○	the consummation of the Merger substantially concurrently with the initial borrowing under the Holdco Term Loan Facility;

○

the Initial Agents having made the Equity Contribution substantially concurrently with the Closing Date in an amount equal to at least 75% of (1) (x) the aggregate principal amount of the commitments under the Holdco Term Loan Facility minus (y) the aggregate amount of cash on hand at the Company and its subsidiaries plus (2) the amount of the Equity Contribution;

○	the absence of a material adverse effect on the Company since the date of the Merger Agreement;

○	the accuracy (subject to materiality standards set forth in the Debt Commitment Letter) of certain specified representations and warranties in the Merger Agreement and in the definitive documents with respect to the Debt Financing; and

○	the receipt of certain specified financial statements of the Company; and

•

some or all of the holders under the Company’s existing 2.65% Senior Notes due 2025 (the “2025 Notes”) shall have accepted the “change of control” offer thereunder or the Company having delivered a notice of redemption in respect of the 2025 Notes (which condition may be satisfied after the Closing Date).

The interest rate applicable to the loans under the Holdco Facilities will range from a rate equal to, at Parent’s option, SOFR plus a margin of 1.125% to 2.500% per annum or a base rate plus a margin of 0.125% to 1.500% per annum, depending on the Company’s senior debt rating. A commitment fee equal to a percentage ranging from 0.125% to 0.375%, depending on the Company’s senior debt rating, will accrue on account of the aggregate principal amount of the loans under the Holdco Facilities.

The interest rate applicable to the loans under the Backstop Term Loan Facility will range from a rate equal to, at the Company’s option, SOFR plus a margin of 1.075% to 1.575% per annum or a base rate plus a margin of 0.075% to 0.575% per annum, depending on the amount of time that has passed since the date of the Merger. Facility fees equal to 0.175% will accrue on account of the aggregate principal amount of the loans under the Backstop Term Loan Facility.

In the event that the effectiveness of the Holdco Facilities and the initial borrowing in respect of the Holdco Facilities does not occur on or before the earliest of (1) the consummation of the Merger with or without the funding of the Holdco Facilities, (2) 11:59 p.m. Eastern Daylight Time, on the fifth business day following the End Date, including as it may be extended pursuant to the terms of the Merger Agreement and (3) the date on which the Merger Agreement is terminated (other than with respect to ongoing indemnities, confidentiality provisions and similar provisions) in accordance with its terms in the event the Merger is not consummated, then the commitments under the Debt Commitment Letter with respect to the Holdco Facilities will automatically terminate. If the borrowing of the Backstop Term Loan Facility does not occur on or before the earlier of (i) the date that is 65 days after the fifth business day after the consummation of the Merger with or without funding the Backstop Term Loan Facility

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and (ii) the date on which the Merger Agreement is terminated (other than with respect to ongoing indemnities, confidentiality provisions and similar provisions) in accordance with its terms in the event the Merger is not consummated, then the commitments under the Debt Commitment Letter with respect to the Backstop Term Loan Facility shall automatically terminate unless the Initial Agents agree to an extension.

Although the Debt Financing described in this proxy statement is not subject to due diligence or a “market out” provision, which allows lenders not to fund their commitments if certain conditions in the financial markets prevail, there is still a risk that such Debt Financing may not be funded when required. As of the date of this proxy statement, no alternative financing arrangements or alternative financing plans have been made in the event the Debt Financing described in this proxy statement is not available as anticipated.

Subject to the terms and conditions of the Merger Agreement, each of Parent and Merger Sub shall use its reasonable best efforts to obtain the Debt Financing on the terms and conditions described in the Debt Commitment Letter, subject to any modifications permitted by the Merger Agreement.

Equity Commitment Agreements

Concurrently with the execution of the Merger Agreement on May 5, 2024, the Sponsors executed and delivered to Parent equity commitment agreements pursuant to which each such Sponsor committed, solely for the purpose of funding, and only to the extent necessary to fund its pro rata share, to make an equity contribution to Parent in an amount equal to its pro rata share of a maximum aggregate amount of approximately $3.58 billion at or prior to the date of the Merger. The proceeds of the equity commitments will be used by Parent, together with the Debt Financing and other sources of funds (if any), solely to fund the Merger Consideration and then-due fees and expenses and any other amounts payable by Parent or Merger Sub related to the consummation of the Merger and the Closing, in accordance with the provisions of the Merger Agreement and the equity commitment agreements, and subject to the terms and conditions thereof.

Each Sponsor’s obligation to fund the equity commitment is conditioned upon:

•	the execution and delivery of the Merger Agreement by the Company and the other parties thereto and all other documents required by the Merger Agreement to be executed and delivered by the Company at or prior to the Closing (and the Merger Agreement remaining in full force and effect);

•	the satisfaction or waiver in writing by Parent of all of the conditions precedent to obligations of Parent and Merger Sub to effect the Closing as set forth in the Merger Agreement;

•

subject to the receipt by Parent of all proceeds of the Debt Financing in accordance with the terms thereof, the simultaneous or immediately subsequent consummation of the Closing in accordance with the terms and subject to the conditions of the Merger Agreement following the funding of the aggregate equity commitment; and

•	the prior or substantially simultaneous funding to Parent of the pro rata commitments of the other Sponsors.

The maximum aggregate liability under the equity commitment agreement for each Sponsor will not exceed an amount equal to such Sponsor’s pro rata portion of approximately $3.58 billion with respect to the obligation to fund a portion of the Merger Consideration.

The Company is an express third-party beneficiary in certain instances of each equity commitment agreement and has the right to seek specific performance of each Sponsor’s obligations under each equity commitment agreement.

Limited Guaranties

Concurrently with the execution of the Merger Agreement, the Sponsors executed and delivered limited guaranties in favor of the Company pursuant to which each such Sponsor agreed to guarantee the due and punctual payment, if and when due in accordance with the Merger Agreement, and subject to the limitations of liability set forth therein, of such Sponsor’s pro rata share of any termination fees payable by Parent (and certain other fees to be paid in connection therewith), in each of the foregoing cases, only if such amounts become payable pursuant to the Merger Agreement, subject to certain limitations, including, if elected by such Sponsor, any dollar-for-dollar

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reduction of the applicable termination fee by all or any portion of the liquidation preference of all the then-outstanding Preferred Shares held by such Sponsor or its affiliates in exchange for redemption of the applicable Preferred Shares associated with such offset, and any amounts payable by Parent in respect of certain indemnification obligations.

Each Sponsor’s obligations under its applicable limited guaranty will terminate and be of no further force and effect upon the earliest to occur of:

•	the consummation of the Closing;

•	unless the Company has already commenced a claim under such limited guaranty, the 60-day anniversary following the date of the termination of the Merger Agreement;

•	subject to the applicable cap, receipt in full in cash by the Company or its affiliates of the obligations under the limited guaranties;

•	the valid termination of the Merger Agreement in accordance with its terms or under circumstances in which no termination fee is payable by Parent; and

•	the commencement of a non-retained claim by the Company or its affiliate or other related party.

Preferred Equity Investment

Under the terms of the Merger Agreement, the Company and Parent agreed that (1) any time during the period from July 1, 2025 to September 30, 2025, we may provide Parent with written notice of our intent to raise equity capital in an amount of no less than $50 million and up to $150 million and (2) at any time during the period from October 1, 2025 to December 31, 2025, we may provide Parent with written notice of our intent to raise equity capital in an amount of no less than $50 million and up to $300 million (less any amounts called by us in connection with the initial equity capital raise between July 1, 2025 and September 30, 2025) and, in each case, Parent shall have 10 business days to notify us of its election to participate in such equity capital raises by funding such amounts in exchange for Preferred Shares.

If Parent elects to participate in either of the equity capital raises, the Company and Parent will (1) execute definitive transaction documents in accordance with the terms set forth in Exhibit D of the Merger Agreement within five business days of Parent’s election in connection with the applicable equity raise and (2) use reasonable best efforts to consummate such transactions as soon as reasonably practicable, subject to any required regulatory approvals. In addition, to the extent permitted by applicable law (including the MBCA), the definitive transaction documents will include a waiver of such provisions of the Company’s organizational documents as may be inconsistent with the terms set forth in Exhibit D of the Merger Agreement and the Company and Parent agreed to cooperate and use reasonable best efforts to ensure that such provisions will not apply to the Preferred Shares.

Background of the Merger

As part of its regular ongoing strategic review, the Board and Company management periodically, and at least annually, consider potential opportunities to evaluate the future of the Company and enhance stakeholder objectives, including alternatives to the Company’s standalone financing plan, taking into account economic, competitive, regulatory and other conditions, as well as historical and projected industry trends and developments. This ongoing review has, from time to time, included discussions regarding potential mergers, acquisitions, sales of assets or subsidiaries or the sale of the Company in a change of control transaction. In some instances, these discussions

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resulted in definitive agreements with respect to sales and acquisitions of portions of the business and were ultimately consummated. For example, in 2019 the Company sold its subsidiary U.S. Water Services Inc. to Kurita Water Industries Ltd. and in 2022 the Company acquired New Energy Equity.

The Company developed its “Sustainability-in-Action” strategy beginning in 2019, which was approved by the Board in October 2020. This transformative strategy is designed to enhance and grow the Company by providing sustainable energy solutions to meet changing societal expectations and evolving regulations. The “Sustainability-in-Action” strategy includes an approximately $20 billion capital plan over the next 20 years to reduce carbon, expand renewables, enhance resiliency and reliability of the transmission grid, and also to grow the Company’s non-regulated businesses. The Board engaged in numerous more focused discussions since that time to explore the various strategic pathways available to the Company to finance such plan for transformational growth and maximize stakeholder interests, including as related to the future capital needs of the Company.

In October 2022, the Board and members of Company management spent a portion of the Board’s regular meeting discussing macroeconomic and utility sector updates and the Company’s growth outlook, business plan assessment and preliminary valuation and potential pathways for the Company with representatives of J.P. Morgan, a long-standing financial advisor of the Company. As it did on at least an annual basis for the past 14 years or longer, the Board considered possible ways to maximize value to shareholders and other stakeholders of the Company, including the possibility of a change of control sale of the Company, such as a sale to a strategic acquirer or to a privately held company, either through a broad or targeted outreach process. While the Board and Company management had engaged in discussions regarding similar topics in prior meetings, the Board began to consider more seriously a change of control sale of the Company as a possible path for the Company, particularly in light of the Company’s significant future capital needs and potential financing challenges. The Board and Company management engaged in further discussion regarding the possible sale of the Company during the Board’s regular meeting in February 2023, and the Board further considered whether transitioning to a privately held company with strong financial partners could help to ensure the Company would have access to the significant capital needed for its planned investments now and over the long-term.

On March 21, 2023, the Board met at a special meeting at which certain members of Company management and Skadden, Arps, Slate, Meagher & Flom LLP (“Skadden”) (counsel to the Company) were present, and representatives of J.P. Morgan attended portions of the meeting. Representatives of Skadden discussed certain legal and regulatory matters relating to the proposed process and reminded the Board of its fiduciary duties in connection with the review of strategic alternatives, including a potential sale transaction. Representatives of J.P. Morgan covered strategic and valuation dynamics in the sector, revisited the Company’s growth outlook, provided a preliminary valuation analysis of the Company and provided perspectives and considerations in connection with the Company’s potential strategic pathways. Company management and the Board engaged in discussion with representatives of Skadden and J.P Morgan regarding the possibility of exploring strategic alternatives, including potential outreach to select parties with experience in the public utility sector. The Board determined to focus outreach on infrastructure and pension funds because the Board believed such parties would have the financial resources to invest in the substantial future capital growth needs of the Company and because of concerns that strategic buyers, which may not be willing to partner with the Company to support regulatory goals in Minnesota and Wisconsin in light of focus on separate interests, could be less attractive investors from a regulatory perspective. In contrast, most pension and infrastructure funds could provide increased access to capital to enhance infrastructure investment as well as fast-track key growth strategies, express a commitment for a long-term hold and make commitments in regulatory processes, including those relating to employees and maintenance of existing headquarters. In light of concerns regarding the risk of leaks and potential distractions to Company management and the Board, and Company management’s view of the universe of potential acquirors, the Board authorized J.P. Morgan to move forward with exploring the possibility of engaging with certain infrastructure and pension funds that were likely to be able to meet such criteria and could be interested in acquiring the Company through an initial pre-screening process.

At the Board’s direction, representatives of J.P. Morgan conducted initial outreach to potential buyers through a pre-screening process to gauge interest in purchasing a small- to mid-cap primarily electric utility. From late March 2023 into early April 2023, representatives of J.P. Morgan held discussions with representatives of seven pension and infrastructure funds, including GIP. During these meetings, representatives of J.P. Morgan assessed the interest of each applicable party in an acquisition of various companies with similar characteristics to the Company (including the Company), as well as each party’s financial capability, regulatory experience and ability to

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consummate a transaction of the type contemplated. While two of the seven pension and infrastructure funds indicated that such a transaction would not be well-suited to them, five of the seven parties, including GIP and four other potential counterparties, which we refer to as Parties A, B, C and D, expressed an interest in potentially pursuing a transaction of that type.

On April 7, 2023, the Board held a special meeting at which certain members of Company management and representatives of Skadden were present, and representatives of J.P. Morgan attended portions of the meeting. Representatives of J.P. Morgan provided an update on their initial outreach to the seven pension and infrastructure funds the Company had identified as most interested and capable of pursuing a transaction, including their ability to pay a premium and to meet the Company’s capital needs on a go-forward basis. Based on the feedback received by representatives of J.P. Morgan from the counterparties in the initial meetings, the Board determined to continue to move forward with exploring potential engagement with the five pension and infrastructure funds with whom representatives of J.P. Morgan had met that had expressed an interest in potentially pursuing a transaction.

On April 26, 2023, the Board held a regular meeting at which certain members of Company management were present, and representatives of J.P. Morgan and Skadden attended portions of the meeting. During the meeting, the Board engaged in discussion with members of Company management regarding the implications of a possible transaction, including regulatory approvals and the importance of ensuring that a transaction would not negatively impact the Company’s customers, employees and the communities in which the Company operates nor pose an inordinate distraction of Company management due to the significant amount of attention and focus that would be required to complete such a transaction. Members of Company management and representatives of J.P. Morgan and Skadden provided an overview of the potential counterparties and the proposed timeline and next steps in the process, including the approach to confidentiality agreements and preparing key financial information for potential counterparty review, as well as conducting “fireside chats” with each of the potential counterparties involved in the process. The Board determined to continue to proceed with a possible sale process, including the steps outlined by members of Company management and the Company’s advisors.

At the direction of the Board, in early June 2023, Company management also began negotiating the terms of an engagement letter with J.P. Morgan in connection with J.P. Morgan’s services with respect to the potential transaction. The engagement letter was executed on July 5, 2023.

Beginning in the end of June 2023 and over the following weeks, at direction of the Board, representatives of J.P. Morgan spoke with representatives of each of the five parties that had previously expressed an interest in pursuing a transaction, in each case, to revisit each such party’s interest in and ability to engage in an acquisition of a company with a profile similar to the Company. On July 1, 2023, following CPP Investments’ indication that it may be open to pursing an investment in utilities and based on CPP Investments’ experience in the sector, representatives of J.P. Morgan met with CPP Investments to gauge CPP Investments’ interest in pursuing an acquisition of various companies with similar characteristics to the Company (including the Company). CPP Investments confirmed to representatives of J.P. Morgan that it would be interested in considering a transaction with the Company. In addition to CPP Investments, each of the five parties, including GIP, expressed a continued interest in the opportunity and requested that representatives of J.P. Morgan send a confidentiality agreement such that it could learn more about the possibility of a transaction. At the direction of the Company, J.P. Morgan sent draft confidentiality agreements that had been prepared by Skadden to each party for review, and, following negotiation of the draft confidentiality agreement between the Company and each such counterparty, each party returned an executed confidentiality agreement to the Company, through representatives of J.P. Morgan, over the following weeks. Prior to execution of GIP’s confidentiality agreement, GIP requested permission to share materials with CalPERS (pursuant to a preexisting arrangement between GIP and CalPERS), and CalPERS also executed a confidentiality agreement in connection with its potential participation in the transaction as the sole limited partner of a fund managed by GIP that would invest alongside other funds managed by GIP. The terms of all seven confidentiality agreements were substantially similar. Each agreement included (1) customary confidentiality and non-disclosure obligations, (2) a non-solicitation covenant and (3) a standstill provision with customary fallaways and the ability to make confidential proposals to the Company without any “don’t ask, don’t waive” provisions. Once the negotiation of a confidentiality agreement was finalized with the applicable party, the party was informed by representatives of J.P. Morgan that the Company would be the counterparty.

On July 15, 2023, the Company opened the electronic data room containing certain limited financial information to each of the parties that had executed a confidentiality agreement. After the opening of the electronic data room,

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the potential counterparties engaged in preliminary due diligence on the Company, and certain of their representatives and advisors participated in financial diligence sessions with the Company, including a session with members of Company management and representatives of GIP on July 24, 2023.

During the end of July 2023 and early August 2023, Bethany Owen, Chair, President & Chief Executive Officer of the Company, Steven Morris, Senior Vice President and Chief Financial Officer of the Company, Jeff Scissons, Company Corporate Development and ALLETE Clean Energy Strategy Officer, held six “fireside chats” in New York, New York and Bloomington, Minnesota, each with one potential counterparty, including CPP Investments and GIP. Representatives of J.P. Morgan were present at each such meeting. During these discussions, Company management provided introductions to the Company and the Company’s strategy, outlook, business mix and rationale for considering a potential transaction, including the Company’s capital needs. In addition, through these discussions, Company management sought additional information regarding the potential counterparties and their background, typical investment approach and governance arrangements.

On July 27, 2023, the Board held a regular meeting at which certain members of Company management were present, and representatives of J.P. Morgan and Skadden attended portions of the meeting. Members of Company management and representatives of J.P. Morgan provided the Board with an update on macroeconomic conditions in the utility sector and the process and engagement with potential counterparties in connection with a potential sale, including an overview of the confidentiality agreements that had been executed and the “fireside chats” that had occurred to date. The Board engaged in discussion with Company management and representatives of J.P. Morgan and Skadden regarding, among other things, industry developments, the regulatory approval landscape and go-forward engagement with potential counterparties.

On August 7, 2023, the Company provided to the potential counterparties a Round 1 process letter outlining the instructions for submission of a nonbinding initial indication of interest due on September 7, 2023.

On August 9, 2023, the Board held a special meeting at which certain members of Company management were present, and representatives of J.P. Morgan and Skadden attended portions of the meeting. Members of Company management and representatives of J.P. Morgan provided the Board with an overview of the additional “fireside chats” that had occurred since the prior Board meeting and discussed the timeline and process for receipt of nonbinding bids from the potential counterparties.

Over the following weeks, the Company began the process of adding documents to the electronic data room for Round 2 of the process.

While Party A engaged in certain limited discussions with the Company, including submission of initial diligence requests and participation in a call with members of Company management and representatives of J.P. Morgan in early to mid-August, Party A communicated with representatives of J.P. Morgan prior to the Round 1 bid date that it had determined not to proceed with exploring a potential transaction with the Company based on its inability to reach a meaningful valuation premium to the Company’s public market valuation. Party B and Party C did not meaningfully engage with the Company beyond the “fireside chat” stage and communicated with representatives of J.P. Morgan around the time of the bid deadline that they had determined not to proceed with the opportunity, citing concerns around their inability to reach a material valuation premium, primarily due to the Company’s industrial customer base and the perceived risk associated therewith, coal mining operations and their limited capital. On September 6, 2023, representatives of Party D informed representatives of J.P. Morgan that they would not be able to provide an offer at a price that would be competitive, as it could only reach a valuation premium of 10% to 15% to the Company’s public market valuation at such time.

On September 7, 2023, GIP submitted to the Company a nonbinding offer of $71.00 per share, noting its ability to secure capital to fund at least 50% and possibly up to 100% of the transaction, subject to discussion with potential equity partners in Round 2. Due to restrictions in the confidentiality agreement limiting the ability of GIP to discuss the proposed transaction with other potential equity investors without the Company’s consent, GIP noted its ability to secure 100% of the capital was uncertain and could take incremental time. On September 11, 2023, CPP Investments submitted to the Company a nonbinding offer of $69.26 per share. Both bids were based on only preliminary and limited due diligence and were subject to customary due diligence, such as commercial, financial, technical, legal, regulatory, environmental, insurance and tax matters.

On September 15, 2023, the Board held a special meeting at which certain members of Company management and representatives of J.P. Morgan and Skadden were present. Members of Company management and

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representatives of J.P. Morgan provided an update on the transaction process, including a description of the status of each of the potential counterparties participating in the process. In addition, members of Company management and representatives of J.P. Morgan provided summaries of the indicative written offers from CPP Investments and GIP, including the valuations, required regulatory approvals, outstanding diligence matters and GIP’s need to find a partner to be able to fund the transaction. Representatives of J.P. Morgan also provided a preliminary valuation of the Company. In addition, representatives of Skadden presented the Board with an overview of the key terms of the draft of the merger agreement proposed to be provided to potential counterparties, including the fiduciary out provisions to permit the Board to consider unsolicited proposals received following the execution of the merger agreement, the provisions related to the parties’ respective regulatory obligations and the allocation of regulatory risk, related remedies provisions, termination rights and closing conditions, as well as other key terms related to social and governance commitments, which were designed to enhance regulatory approval certainty. During this meeting, the Board engaged in discussion regarding the process conducted to date, the indicative offers received, key considerations, and the potential go-forward process and next steps, including presentations to be conducted by Company management to each potential counterparty, diligence and negotiation of a merger agreement. The Board determined to continue to engage with CPP Investments and GIP and to move forward with these potential counterparties in Round 2, as well as to permit GIP to engage in discussions with potential equity partners.

Following notification by representatives of J.P. Morgan that GIP would be invited into Round 2 of the process, GIP began outreach to potential equity partners to participate jointly with GIP in the proposed transaction. From the beginning of October 2023 until the beginning of November 2023, the Company and GIP executed confidentiality agreement joinders with three potential minority investors that were interested in exploring the transaction as an equity partner to GIP, including a potential minority investor we refer to as Minority Investor 1 and another potential minority investor we refer to as Minority Investor 2.

On September 27, 2023, at the direction of the Board, representatives of J.P. Morgan invited each of CPP Investments and GIP to Round 2 and opened the Round 2 electronic data room for the potential counterparties to begin the second phase of diligence. With the expansion of the materials in the electronic data room, CPP Investments and GIP each engaged in further due diligence on the Company, and their representatives and advisors participated in extensive diligence sessions with the Company on various topics, including modeling and forecasting, environmental, legal, technical, tax and cyber matters, as well as regulatory matters, including calls with representatives of each of CPP Investments (on November 20, 2023) and GIP (on November 1, 2023, and November 6, 2023) and their (and the Company’s) respective financial and legal advisors regarding the regulatory approvals contemplated in connection with the proposed transaction and related considerations. Representatives of Minority Investor 1 also joined certain diligence sessions. The Company provided substantial additional due diligence materials, including responses to a significant number of diligence questions about the Company and its businesses, in the electronic data room in response to requests from the potential counterparties.

On October 22, 2023, representatives of CPP Investments notified representatives of J.P. Morgan of the possibility that it would pursue a minority partner to invest alongside CPP Investments.

On October 23 and 24, 2023, members of Company management conducted management presentations in Bloomington, Minnesota, at which representatives of J.P. Morgan were present, to representatives of CPP Investments and GIP (along with Minority Investor 1 and Minority Investor 2), respectively. During each of the management presentations, Company management shared an overview of the Company’s financial information, including Company forecasts prepared by Company management, business unit strategies, the Company’s 20-year capital forecast, regulatory matters, the energy transition and the Company’s “Sustainability-In-Action” strategy. Following the management presentation to CPP Investments on October 23, 2023, members of Company management met with representatives of GIP, Minority Investor 1 and Minority Investor 2 for dinner and discussion in advance of the following day’s management presentation to GIP and such potential partners.

On October 25, 2023, the Board held a regular meeting at which certain members of Company management were present, and representatives of J.P. Morgan and Skadden attended portions of the meeting. Members of Company management and representatives of J.P. Morgan provided an update on engagement with potential counterparties since the prior Board meeting, including regarding management presentations and diligence conducted to date. In addition, representatives of J.P. Morgan noted that GIP was working with potential partners in addition to CalPERS, including Minority Investor 1, and that CPP Investments also had proposed to introduce a minority partner and provided the Board with an overview of such potential partners. Representatives of Skadden provided the Board with an update regarding the timeline for the transaction and also provided an overview of considerations related to

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engaging a second financial advisor. The Board engaged in discussion with Company management and representatives of J.P. Morgan and Skadden regarding industry trends, potential counterparties and regulatory considerations. Prior to the Board meeting, representatives of J.P. Morgan had provided a customary written relationship conflicts disclosure letter to the Company via Skadden. Following the J.P. Morgan representatives’ departure from the meeting, representatives of Skadden discussed J.P. Morgan’s disclosure letter with the Board and recommended that the Board consider obtaining a second fairness opinion in light of the relationships with CPP Investments and GIP disclosed in J.P. Morgan’s conflicts disclosure. After discussing the conflicts disclosure letter, Skadden’s recommendation and the pros and cons of obtaining a second fairness opinion (including the cost thereof), the Board determined that it was in the best interests of the Company to engage a second financial advisor to deliver a second fairness opinion at the appropriate time in the process, should the Company continue to move forward with the potential counterparties. The Board requested that Company management and its legal advisors make recommendations with respect to potential suitable financial advisor candidates based on their assessment of their qualifications and expertise in such capacity.

On October 31, 2023, the Company provided to CPP Investments and GIP a Round 2 process letter outlining the instructions for submission of binding proposals no later than December 18, 2023, and requesting a complete markup of the merger agreement by November 29, 2023.

In early November 2023, Company management provided a summary of key terms of the initial draft of the merger agreement along with a full draft of the merger agreement to the Board for review prior to it being provided to potential counterparties.

On November 9, 2023, the Company provided the initial draft of the merger agreement to CPP Investments and GIP for their review and comment.

At the request of each of GIP and CPP Investments, on November 19, 2023 and November 21, 2023, Ms. Owen met with representatives of GIP and CPP Investments, respectively, for dinner and discussion in Minneapolis, Minnesota, and Bloomington, Minnesota, respectively. During the meetings, Ms. Owen and the representatives of GIP and CPP Investments discussed the Company’s strategy, the importance of culture and values, the Company’s focus on customers, communities, and opportunities for employees, and the future capital needs of the Company.

On November 22, 2023, with further confirmation in early December, representatives of CPP Investments informed representatives of J.P. Morgan that, while they remained interested in the proposed transaction, they would require an equity partner to be able to proceed with a final bid. Over the next several weeks, CPP Investments continued to perform diligence and to explore potential partnerships. During the end of November and early December, the Company and CPP Investments executed confidentiality agreement joinders with two parties that were interested in exploring the transaction as an equity partner to CPP Investments.

In mid-to-late November 2023, based on requests from CPP Investments and GIP in relation to having more time to facilitate equity consortium partnering discussions, at the direction of Company management, representatives of J.P. Morgan advised CPP Investments and GIP that the bid deadline would be extended to mid-January 2024, with the deadline for the Company to receive a markup of the draft merger agreement extended to December 9, 2023.

On November 23, 2023, the Board held a special meeting at which certain members of Company management and representatives of Skadden were present, and representatives of J.P. Morgan attended portions of the meeting. Ms. Owen provided an update on her meetings with representatives of GIP and CPP Investments on November 19, 2023, and November 21, 2023, respectively. Members of Company management and representatives of J.P. Morgan provided an update on the process, timeline, diligence and developments with respect to potential partners for CPP Investments and GIP, including that GIP was continuing to identify potential partners and that CPP Investments had begun outreach to certain potential partners. The Board engaged in discussion regarding counterparties and potential partnerships, including how such partnerships could evolve in the process, regulatory considerations and macro trends in the industry.

On December 5, 2023, an online financial news website published an article reporting that the Company was exploring a sale of the Company and had retained J.P. Morgan in connection therewith. The article stated that potential buyers included infrastructure funds and buyout firms but that no deal was certain. The Company did not comment on the article, which was consistent with its policy of not commenting on market rumors regarding mergers and acquisitions. Following publication of the article, the price of shares of Company Common Stock increased approximately 8% to close on December 5, 2023, at $60.76 per share.

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Following the December 5, 2023, news article regarding the possible transaction, representatives of J.P. Morgan received inquiries from three parties who had not previously been engaged in the process, including one potential minority investor we refer to as Minority Investor 3 that expressed interest in partnering with another potential investor in the process. While the three parties initially expressed interest in a possible transaction, none of such parties executed a confidentiality agreement to proceed with the transaction. Following receipt of such inquiries, at the direction of the Board, representatives of J.P. Morgan introduced Minority Investor 3 to CPP Investments to engage in preliminary discussions regarding a possible partnership.

On December 8, 2023, Kirkland & Ellis LLP (“Kirkland”) (counsel to GIP and, following CPP Investment’s joinder to the investor consortium with GIP, counsel to GIP and CPP Investments), on behalf of GIP, submitted an initial markup of the merger agreement to Skadden. While the markup of the merger agreement addressed most matters contained in the agreement, it did not include comments on, and reserved with respect to, regulatory matters and the covenants applicable to the operation of the business between signing and closing.

Given the evolving state of the partnerships, at the direction of Company management, representatives of J.P. Morgan communicated to CPP Investments and GIP an updated binding bid date of January 26, 2024.

On December 12, 2023, the Board held a special meeting at which certain members of Company management were present, and representatives of J.P. Morgan and Skadden attended portions of the meeting. Members of Company management and representatives of J.P. Morgan and Skadden provided an update on the process, including the news article describing the process and that additional parties had contacted representatives of J.P. Morgan following its publication and that representatives of J.P. Morgan had introduced Minority Investor 3 with CPP Investments. Representatives of Skadden also provided an update on the merger agreement process, including that a markup of the merger agreement had been received from Kirkland on behalf of GIP on December 8, 2023, noting that GIP had not provided comments on some of the key provisions of the merger agreement, including on regulatory matters, and that a markup of the merger agreement had not yet been received from CPP Investments. The Board engaged in discussion with Company management and representatives of J.P. Morgan and Skadden regarding the timeline, diligence status, potential counterparty partnerships, experience of potential counterparties and minority investors in similar transactions and regulatory considerations. Following the Board meeting, the Company extended the deadline for the Company to receive markups of the merger agreement to January 5, 2024.

In mid-December 2023, CPP Investments requested consent to discuss with Party A the possibility of partnering with respect to the transaction. On December 18, 2023, CPP Investments began discussing with Party A the possibility of participating jointly in a investor consortium in connection with the transaction.

On December 21, 2023, the Board held a special meeting at which certain members of Company management and representatives of Skadden were present, and representatives of J.P. Morgan attended portions of the meeting. Members of Company management and representatives of J.P. Morgan provided an update on the transaction, including counterparty partnerships and project timeline, as well as Company outlook. The Board engaged in discussion regarding next steps in the process, including the possibility of introducing CPP Investments and GIP if their respective partnerships did not materialize. In addition, members of Company management provided an overview of Company results and outlook, and the Board and Company management engaged in a discussion regarding long-term average growth rates, expense management and rate case impacts, including as related to perspectives on a possible transaction.

On December 22, 2023, the Company uploaded a draft of the Company disclosure schedules to the electronic data room for review by the potential counterparties.

By mid-December 2023, the parties being considered as potential partners for CPP Investments (including Party A and Minority Investor 3) either determined not to proceed with the process or had not demonstrated considerable interest and investment in the process. Meanwhile, two of the parties exploring a possible equity partnership with GIP had determined not to proceed with the transaction, with only Minority Investor 1 and CalPERS remaining as part of a possible investor consortium with GIP.

On December 29, 2023, the Board held a special meeting at which certain members of Company management and representatives of Skadden were present, and representatives of J.P. Morgan attended portions of the meeting. Members of Company management and representatives of J.P. Morgan provided an update on developments of the discussions of CPP Investments and GIP with their respective partners, including that GIP was no longer in discussions with two of its potential partners and that CPP Investments was still in very early discussions with Party A

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and conversations with Minority Investor 3 had not progressed. Discussion ensued regarding the project timeline and possibility and potential impacts of delay, counterparty partnerships, diligence status, regulatory considerations and share price and valuation. In light of the failure of certain partnership discussions to progress with respect to CPP Investments and GIP and the Board’s view of the viability of CPP Investments and GIP as potential counterparties, the Board instructed J.P. Morgan to introduce CPP Investments and GIP and authorize CPP Investments and GIP to engage in discussions with respect to jointly pursuing a transaction. Following the departure of the J.P. Morgan representatives from the meeting, the Board discussed with Company management and representatives of Skadden process and timing, including with respect to a second fairness opinion.

At the direction of the Board, on December 29, 2023, representatives of J.P. Morgan introduced representatives of CPP Investments and GIP and, in connection with the confidentiality agreements, provided permission for CPP Investments and GIP to discuss with each other the potential transaction and the possibility of pursuing the transaction as partners. In that conversation, the parties discussed the possibility of pushing back the deadline for the Company to receive a draft of the merger agreement submission in order to give the parties time to provide an integrated markup. On January 8, 2024, and following certain conversations between representatives of J.P. Morgan and the parties consistent with such request, at the direction of Company management, representatives of J.P. Morgan notified CPP Investments and GIP by email requesting a complete draft of the merger agreement no later than January 12, 2024.

On January 12, 2024, Kirkland, on behalf of CPP Investments, GIP and Minority Investor 1, submitted a further revised draft of the merger agreement to Skadden. The draft included comments with respect to, among other things, regulatory matters and the covenants applicable to the operation of the business between signing and closing. The primary issues in Kirkland’s revised draft of the merger agreement related to the covenants applicable to the operation of the business between signing and closing and regulatory matters, including modifications to the definition of Burdensome Condition and a proposal that the Parent regulatory termination fee be set at 3.5% of the transaction equity value.

Following a public announcement that BlackRock, Inc. (“BlackRock”) had entered into an agreement to acquire GIP, GIP’s Founder, Chairman and Chief Executive Officer called Ms. Owen to inform her about the BlackRock transaction. In that call, GIP’s Founder, Chairman and Chief Executive Officer indicated that GIP would continue to manage its investments and that GIP’s transaction with BlackRock did not change GIP’s interest in or the dynamics associated with the proposed transaction with the Company. The Company neither conferred with representatives of BlackRock to discuss the proposed acquisition by GIP (and its partners) of the Company nor did it enter into any agreement with BlackRock relating to or in connection with the proposed transaction.

On January 13, 2024, GIP informed representatives of J.P. Morgan by email that the ownership among CPP Investments, GIP and Minority Investor 1 would be approximately 40%, 40% and 20% or 37.5%, 37.5% and 25%, respectively.

On January 14, 2024, the Board held a special meeting at which certain members of Company management and representatives of J.P. Morgan and Skadden were present. Ms. Owen provided an overview of her conversation with GIP’s Founder, Chairman and Chief Executive Officer and the announcement regarding BlackRock’s proposed acquisition of GIP, as well as an update regarding the advancement of discussions between CPP Investments and GIP. Representatives of Skadden provided an overview of key issues in the draft merger agreement submitted by CPP Investments, GIP and Minority Investor 1, with a particular focus on regulatory and governance provisions and potential risks related to those provisions. The Board engaged in discussion regarding the timeline and process, regulatory landscape and considerations related to the composition of the investor consortium, and the Board instructed Company management to explore reducing the risk profile of the investor consortium.

During this period, CPP Investments and GIP and their advisors continued to conduct diligence on the Company, including through a comprehensive diligence call on January 18, 2024, in which members of Company management participated with representatives of CPP Investments and GIP, along with Skadden, Kirkland, Latham & Watkins LLP (counsel to CPP Investments), Moelis & Company (financial advisor to CPP Investments), Environmental Resources Management (advisor to CPP Investments and GIP) and J.P. Morgan. Also on January 18, 2024, members of Company management met with representatives of CPP Investments and GIP to discuss the regulatory approvals anticipated to be required in connection with the transaction. Representatives of Skadden, Kirkland, Taft Stettinius & Hollister LLP (“Taft”) (regulatory counsel to the Company), Michael Best & Friedrich LLP (regulatory counsel to the Company), Lipschultz Energy and Communications Consulting (advisor to CPP Investments and GIP) and J.P. Morgan also participated in the discussion.

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On January 19, 2024, members of Company management engaged in discussion with representatives of CPP Investments and GIP regarding an updated 2024 operating budget, and also the long-term capital plan, which had been updated by Company management.

That same day, Skadden sent to Kirkland a list of key issues raised in Kirkland’s revised draft of the merger agreement, which topics included, among other things, regulatory matters (including the Burdensome Condition definition, regulatory termination fee and the investor consortium’s obligations in connection with regulatory approvals) and the covenants applicable to the operation of the business between signing and closing.

Following the Board’s determination to pursue a second fairness opinion, in light of prior discussions with the Board and at the direction of Company management, Skadden contacted Houlihan Lokey regarding the possibility of providing a fairness opinion.

On January 21, 2024, Ms. Owen and Mr. Morris spoke with representatives from CPP Investments and GIP about regulatory considerations related to the potential transaction and considerations related to the composition of the investor consortium. On January 23, 2024, Kirkland communicated to Skadden that the investor consortium had been updated such that it would be owned 50% by each of CPP Investments and GIP.

On January 23, 2024, CPP Investments and GIP communicated to representatives of J.P. Morgan that they would submit a further revised draft of the merger agreement on January 26, 2024, but that their binding bid would follow on February 1, 2024 (rather than the January 26, 2024 bid date previously set), due to the timing of their respective investment committee meetings.

On January 24, 2024, the Board held a regular meeting at which certain members of Company management were present, and representatives of Skadden attended portions of the meeting. Members of Company management reviewed the Company’s 2023 results, provided an update on the proposed transaction process and presented scenario planning for the Company’s capital expenditures forecast and standalone financing plan considerations. Representatives of Skadden provided an update to the Board regarding the second fairness opinion process, including the determination to select Houlihan Lokey based on, among other things, Houlihan Lokey’s experience with serving as a financial advisor and providing fairness opinions, its experience in the industry, and reputation and familiarity with the Company. Prior to the Board meeting, Houlihan Lokey had provided conflicts disclosure to the Company via Skadden, and at the meeting, representatives of Skadden discussed with the Board Houlihan Lokey’s conflicts disclosure, which the Board considered immaterial. The Board determined to continue to proceed with engaging Houlihan Lokey for purposes of the second fairness opinion.

Following the determination of the Board to proceed with Houlihan Lokey to provide a second fairness opinion, in late January 2024, the Company negotiated the terms of an engagement letter with Houlihan Lokey in connection with Houlihan Lokey’s provision of a fairness opinion with respect to the transaction.

On January 25, 2024, a subscription-only energy industry market-focused online publication published an article stating that binding bids were due during the week of January 22, 2024 in connection with a sale of the Company. Following publication of the article, the price of shares of Company Common Stock increased approximately 3% to close on January 25, 2024, at $59.44 per share.

On January 26, 2024, Kirkland sent Skadden a revised draft of the merger agreement. The primary issues in Kirkland’s revised draft of the merger agreement related to regulatory matters and the covenants applicable to the operation of the business between signing and closing. Kirkland’s revised draft also modified CPP Investments and GIP’s proposal with respect to termination fees such that the Parent regulatory termination fee would be set at 4% of transaction equity value. In addition, Kirkland sent Skadden a revised draft of the Company disclosure schedules and initial drafts of the forms of the equity commitment letter and limited guarantee.

On January 29, 2024, the Board held a special meeting at which certain members of Company management and representatives of J.P. Morgan and Skadden were present. Members of Company management and representatives of J.P. Morgan and Skadden provided an update on the transaction, including with respect to the composition of the investor consortium. Representatives of Skadden provided an update regarding the January 26, 2024, markup of the merger agreement received from Kirkland and an overview of the key areas of improvement in the draft, particularly as it related to regulatory matters. The Board engaged in discussion with Company management and representatives of J.P. Morgan and Skadden regarding approaches to negotiations and significant changes and key areas for negotiation, including with respect to the regulatory termination fee and other regulatory provisions.

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On February 1, 2024, representatives of CPP Investments and GIP verbally conveyed their joint offer of $62.50 per share to representatives of J.P. Morgan. Representatives of CPP Investments and GIP indicated that the price per share had decreased from the respective earlier indications of interest provided by CPP Investments and GIP in part due to valuation around ALLETE Clean Energy, the decreases to the Company’s 2024 forecast and the shift in the timing of the long-term capital plan, the potential market response to 2024 earnings, and CPP Investments and GIP’s heavily equitized capitalization plan. GIP’s Founder, Chairman and Chief Executive Officer subsequently left a voicemail for Ms. Owen, but they did not have an opportunity to connect prior to the Board meeting that afternoon.

Later that day, the Board held a special meeting at which certain members of Company management and representatives of J.P. Morgan and Skadden were present. Members of Company management and representatives of J.P. Morgan informed the Board of the verbal offer and additional context received from CPP Investments and GIP earlier that day and noted that a written offer had not yet been received but was expected to follow. The Board engaged in discussion regarding perspectives on the valuation and related context and opportunities for increasing CPP Investments and GIP’s offer. The Board determined that the verbal offer was not in the best interests of the Company and directed J.P. Morgan to communicate with CPP Investments and GIP that the offer was not acceptable to the Board.

On February 2, 2024, representatives of J.P. Morgan conveyed to representatives of CPP Investments and GIP that the Board had determined not to proceed with CPP Investments and GIP’s February 1, 2024 offer.

On February 2, 2024, GIP’s Founder, Chairman and Chief Executive Officer contacted Ms. Owen directly to discuss the offer from CPP Investments and GIP, the Board’s determination not to move forward with CPP Investments and GIP’s offer, the overall transaction process, including GIP’s excitement about the transaction and their gratitude for the team’s time, and certain factors impacting CPP Investments and GIP’s valuation. Ms. Owen also communicated that the Board would be open to considering offers in the future as part of its fiduciary duties.

Later that day, the Board held a special meeting at which certain members of Company management and representatives of J.P. Morgan and Skadden were present. Representatives of J.P. Morgan indicated that they had communicated to representatives of CPP Investments and GIP that the verbal offer was not accepted by the Board and that the Company had not yet received a written offer from CPP Investments and GIP. Ms. Owen also provided an update on her conversation with GIP’s Founder, Chairman and Chief Executive Officer. The Board engaged in discussion regarding the process with CPP Investments and GIP, valuation perspectives and next steps, and the possibility of pausing work by the Company’s advisors in connection with the transaction. Following the departure of representatives of J.P. Morgan from the meeting, representatives of Skadden indicated that Houlihan Lokey was in the process of its financial review in connection with the preparation of its fairness opinion.

On February 3, 2024, GIP’s Founder, Chairman and Chief Executive Officer contacted Ms. Owen directly to state that an updated written offer of $64.00 per share would be forthcoming.

On February 4, 2024, CPP Investments and GIP submitted an updated written offer, confirming a revised 100% cash purchase price for the Company at a price of $64.00 per share.

On February 5, 2024, during a conversation between representatives of J.P. Morgan and representatives of CPP Investments and GIP, the representatives of CPP Investments and GIP confirmed verbally that $64.00 per share was their “best and final” offer.

On February 6, 2024, GIP’s Founder, Chairman and Chief Executive Officer contacted representatives of J.P. Morgan to provide further clarification regarding the $64.00 per share offer.

On February 7, 2024, the Board held a special meeting at which certain members of Company management and representatives of J.P. Morgan and Skadden were present. Members of Company management and representatives of J.P. Morgan presented the $64.00 per share updated offer from CPP Investments and GIP. In addition, J.P. Morgan provided a preliminary valuation analysis of the Company. The Board engaged in discussion regarding the valuation and transaction premium analysis and baseline adjustments made by CPP Investments and GIP. The Board also discussed the prospects of various of the Company’s capital projects and the valuation of the Company’s business segments. The Board directed representatives of J.P. Morgan to indicate to CPP Investments and GIP that the written offer did not reflect sufficient valuation but did not make any final decisions as to how it would proceed with future

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engagement with CPP Investments and GIP. The Board indicated that it would be interested in further discussion with Company management regarding the Company’s standalone financing plan – specifically its plans to finance the Company’s significant growth – while temporarily pausing engagement with CPP Investments and GIP as it determined how to further proceed.

On February 12, 2024, the Board held a special meeting at which certain members of Company management and representatives of Skadden were present, and representatives of J.P. Morgan attended portions of the meeting. Members of Company management reviewed with the Board the value of CPP Investments and GIP’s written offer and two standalone financing plan alternatives, including forecasts, objectives, assumptions, capital expenditures and financing, earnings per share, share price, dividends, and pros and cons of each alternative. The standalone financing plan alternative scenarios included the possibility of divesting of certain Company non-regulated assets or businesses or issuing additional equity to fund growth, though each potential path had the possibility to present certain challenges: a financing plan would be subject to annual equity issuance limits, and divestitures would be heavily sensitive to sale price. The Board engaged in discussion regarding assumptions, potential discount rates, perspectives on regulated business growth, interest rate assumptions, current small cap company trading multiples, activist risk and current landscape, regulatory risk, pros and cons of the standalone financing plan alternatives, and risks of raising capital and options to mitigate such risks. The Board and members of Company management discussed how the exploration of a sale of the Company was designed to mitigate the risk of significant capital needs, so long as it would be with appropriate counterparties and at an appropriate valuation. The Board asked Company management for an additional presentation regarding the standalone financing plan, particularly with respect to the option that would not involve divestitures of certain Company non-regulated assets or businesses. Representatives of J.P. Morgan then provided a preliminary valuation analysis of the Company. The Board engaged in further discussion regarding areas of focus and valuation perspectives of CPP Investments and GIP and possible paths forward. The Board was supportive of members of Company management having a conversation with representatives of CPP Investments and GIP to seek to increase the offer price and indicating that the Board’s preferred valuation would be closer to the bids received in Round 1 of the process.

On February 14, 2024, Ms. Owen, Mr. Morris and Mr. Scissons spoke with representatives of CPP Investments and GIP, and Company management highlighted certain areas it believed were undervalued in CPP Investments and GIP’s offer, with a particular focus on New Energy Equity, BNI Energy and CPP Investments and GIP’s heavily equitized capitalization plan. Company management indicated that the Board’s preferred valuation would be closer to the bids received in Round 1 of the process. At the end of the conversation, representatives of CPP Investments and GIP indicated they would not increase the price from the written offer of $64.00 per share submitted on February 4, 2024.

On February 15, 2024, the Board held a special meeting at which certain members of Company management and representatives of Skadden were present. Members of Company management provided an update regarding the conversation with representatives of CPP Investments and GIP in which they indicated they would not increase the valuation from their written offer of $64.00 per share. The Board and members of Company management and representatives of Skadden engaged in discussion regarding the standalone financing plan, potential positioning of CPP Investments and GIP and possible paths to gaining additional value for shareholders. The Board agreed to engage in more detailed review of the standalone financing plan before determining whether to seek any further engagement with CPP Investments and GIP at that time.

On February 16, 2024, the Board held a special meeting at which certain members of Company management were present. Members of Company management provided an overview of the standalone financing plan, with a particular focus on the option that would not involve divestitures of certain Company non-regulated assets or businesses and would instead require the Company to raise capital within financing limits. The overview included a summary of assumptions in the plan and drivers of the financial forecast: stock price, serial issuances and market uncertainty, credit rating assumptions, economic conditions and other external forces and execution risk. The plan contemplated billions of dollars of capital expenditures over the next five years. Company management noted that, although several hundred million dollars of annual equity financing was within reasonable limits for the size of the Company, it did introduce serial equity and debt issuance risk. The Board and Company management engaged in discussion throughout the presentation, including regarding potential flexibility in the capital expenditure plan to help mitigate financing risks. Following extensive discussion regarding the standalone financing plan, the Board decided not to proceed further with CPP Investments and GIP’s offer of $64.00 per share.

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Initially, following the Board’s decision to decline to move forward with CPP Investments and GIP’s offer of $64.00 per share, no further engagement occurred between the Company and CPP Investments and GIP. On February 21, 2024, representatives of GIP contacted representatives of J.P. Morgan indicating that CPP Investments and GIP were continuing to conduct diligence on the Company, including with respect to capital expenditures and net income. On February 29, 2024, representatives of CPP Investments indicated to representatives of J.P. Morgan that they were conducting further diligence on the Company in an effort to be able to increase their offer. On March 7, 2024, a representative of GIP contacted Ms. Owen to convey an interest in reengaging with the Company for diligence purposes such that CPP Investments and GIP could further analyze its valuation of the Company, with a specific focus on New Energy Equity. Later that day, representatives of GIP and CPP Investments contacted Ms. Owen by email to provide an outline for in-depth discussion regarding New Energy Equity and associated diligence requests. Over the next several weeks, CPP Investments and GIP conducted significant incremental due diligence, supported by the Company’s management and New Energy Equity teams, including a diligence call on March 13, 2024, between members of Company management and representatives of the New Energy Equity team and representatives of CPP Investments and GIP. In a series of conversations with representatives of J.P. Morgan, CPP Investments and GIP communicated that they were working on an improved valuation predicated on additional value in the New Energy Equity business. During this phase, the Company prepared to move forward with its standalone financing plan. Following its incremental diligence, CPP Investments and GIP determined they had formed a sufficient basis to revisit the value of their proposal with their respective investment committees. The Company conducted an issuance of first mortgage bonds on March 12, 2024, which resulted in a less favorable outcome than the Company had anticipated.

On March 21, 2024, a subscription-only energy industry market-focused online publication published an article stating that a particular party was among the bidders looking at acquiring the Company as part of a consortium with several other financial investors. Following publication of the article, the price of shares of Company Common Stock increased approximately 1% to close on March 21, 2024, at $58.45 per share.

On March 29, 2024, Ms. Owen and Mr. Morris and representatives of CPP Investments and GIP engaged in discussion, and representatives of CPP Investments and GIP verbally conveyed a revised offer of $67.00 per share. Ms. Owen responded she would await a written offer and discuss the offer with the full Board.

On March 30, 2024, CPP Investments and GIP provided an updated written offer to the Company to acquire the Company for $67.00 per share in cash, a $3.00 per share (4.7%) increase over its previous offer of $64.00 per share and a $4.50 per share (7.2%) total increase over its verbal offer of $62.50 per share.

On April 4, 2024, the Board held a special meeting at which certain members of Company management and representatives of Skadden were present, and representatives of J.P. Morgan attended portions of the meeting. Members of Company management and representatives of J.P. Morgan informed the Board of the revised offer of $67.00 per share received from CPP Investments and GIP and provided an overview of the offer and the additional diligence conducted by CPP Investments and GIP, particularly with respect to New Energy Equity. Representatives of J.P. Morgan provided a preliminary valuation analysis of the Company, and the Board engaged in discussion with Company management and representatives of J.P. Morgan regarding the offer, premium analysis and Company valuation. The Board also discussed potential difficulties the Company could face if it were to pursue the standalone financing plan, including potentially challenging financial markets for debt offerings, and the potential inability to pursue a change of control transaction for a significant period of time in light of serial equity and debt offerings to finance the standalone financing plan. Company management then discussed with the Board and representatives of Skadden the importance of ensuring that certain key terms in the merger agreement were acceptable, particularly with respect to employees and benefits, execution risk and matters impacting the regulatory process. Discussion also covered the need to ensure that the Company would be able to finance its capital plan during the pendency of any transaction, either through financing provided by the investor consortium or through the equity markets. Following this discussion, the Board determined to move forward with the offer of $67.00 per share and to seek improvement on certain key terms in Kirkland’s January 26, 2024 draft of the merger agreement, particularly with respect to employee matters, covenants applicable to the operation of the business between signing and closing, regulatory matters, including the regulatory reverse termination fee amount and triggers, and a meaningful commitment for the investor consortium to provide a pathway to financing during the period between signing and closing of a transaction.

Ms. Owen, Mr. Morris and Mr. Scissons discussed with representatives of CPP Investments and GIP that the Board had agreed to moved forward with the transaction, provided that the terms of the transaction will be acceptable to the Company and the Board, particularly with respect to the items identified by the Board in its April 4, 2024 meeting.

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The Company subsequently submitted a written response letter to CPP Investments and GIP that the Board had agreed to move forward with the transaction, premised on CPP Investments and GIP’s reasonable response to the transaction documents, with a particular emphasis on the same terms that Ms. Owen, Mr. Morris and Mr. Scissons had conveyed orally to the representatives of CPP Investments and GIP.

On April 10, 2024, members of Company management met with representatives of CPP Investments and GIP, along with representatives of Skadden, Kirkland and J.P. Morgan, to discuss the Company’s growth plan and financing needs for 2024 and 2025. Discussion centered around potential financing options available to the Company and the possibility of the investor consortium providing financing to the Company during the period between signing and closing. Representatives of CPP Investments and GIP indicated that they would consider their proposed approach to the Company’s interim financing needs and would provide a proposal relating thereto to the Company.

On April 10, 2024, the engagement letter with Houlihan Lokey, which had been substantially negotiated in late January and early February 2024, was executed.

On April 12, 2024, Skadden sent revised drafts of the merger agreement, equity commitment letter and limited guaranty to Kirkland. Among other changes, Skadden’s revised draft of the merger agreement counter-proposed that the Parent regulatory termination fee be set at 4.5% of the transaction equity value.

On April 16, 2024, members of Company management met with representatives of CPP Investments and GIP, along with representatives of Skadden and Kirkland, to discuss the covenants applicable to the operation of the business between signing and closing, with an emphasis on employment and regulatory matters.

On April 17, 2024, Skadden sent a rider to Kirkland containing a revised draft of the covenants in the merger agreement applicable to the operation of the business between signing and closing.

On April 18, 2024, members of Company management and representatives of Skadden discussed with representatives of CPP Investments, GIP and Kirkland certain regulatory diligence matters. That same day, members of Company management provided an update to representatives of CPP Investments and GIP regarding the Company’s business and regulatory affairs.

Over the following weeks, Skadden and Kirkland exchanged revised drafts of the Company disclosure schedules, equity commitment letter, limited guaranty and debt commitment letter, as well as other ancillary transaction documents.

On April 22, 2024, Ms. Owen, Mr. Morris and Mr. Scissons met with representatives of CPP Investments and GIP to discuss the transaction structure and governance arrangements of the members of the investor consortium. During this meeting, representatives of CPP Investments and GIP communicated that the contemplated structure would be as follows: 40% of the equity interests would be held by CPP Investments and 60% of the equity interests would be held by GIP, with 40% of such equity interests held by GIP V and 20% of such equity interests held by a fund managed on behalf of CalPERS. In addition, they indicated that the governance of Parent would effectively be shared equally by CPP Investments and GIP.

On April 23, 2024, the Board held a special meeting at which certain members of Company management and representatives of Skadden were present, and representatives of Houlihan Lokey attended portions of the meeting. Members of Company management provided an overview of the conversation with CPP Investments and GIP regarding the transaction structure and governance arrangements and previewed the upcoming meetings to be held with representatives of CPP Investments and GIP in person on April 29, 2024. Members of Company management and Skadden also provided an update on the transaction documents and anticipated regulatory approvals, including the need for CPP Investments and GIP to obtain non-U.S. competition approvals due to their investments in the EU, Turkey and China. Representatives of Houlihan Lokey joined the meeting to provide an overview of their process in connection with the fairness opinion and described their conflicts disclosure, following the customary written relationship conflicts disclosure letter that had been provided to the Company via Skadden. The Board engaged in discussion with Company management regarding process and timing, key items in the transaction documents, including engaging with CPP Investments and GIP regarding potential approaches to the Company’s financing needs prior to the closing of a transaction, as well as communicating the benefits of the proposed transaction to the Company’s stakeholders.

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On April 26, 2024, members of Company management met with representatives of CPP Investments and GIP to discuss the regulatory approvals anticipated to be required in connection with the transaction and the proposed process for filing and obtaining such approvals. Representatives of Skadden, Kirkland, Taft, Dorsey & Whitney LLP (regulatory counsel to CPP Investments and GIP), Quarles & Brady LLP (regulatory counsel to CPP Investments and GIP) and J.P. Morgan also participated in the discussion.

On April 26, 2024, representatives of Skadden, Kirkland, CPP Investments and GIP met to discuss certain structuring matters.

On April 28, 2024, Kirkland sent Skadden a revised draft of the merger agreement. The key open items in Kirkland’s revised draft related to the covenants applicable to the operation of the business between signing and closing, the Board’s obligations in connection with the Company’s no-shop obligations and the termination triggers with respect to the termination fees payable by Parent. Kirkland’s revised draft also added a covenant requiring the Company to refinance the 2025 Notes.

On April 28, 2024, members of Company management met with representatives of CPP Investments and GIP during which representatives of CPP Investments and GIP provided an overview of a proposal to address the Company’s financing needs during the period between the signing and the closing, under which CPP Investments and GIP would provide financing in the form of a preferred equity investment. Members of Company management and representatives of CPP Investments, GIP, Skadden and J.P. Morgan participated in a discussion during which representatives of CPP Investments and GIP described the preferred equity investment proposal, which proposed an aggregate investment amount of up to $300 million in the aggregate in the second half of 2025 in exchange for preferred shares of the Company. Kirkland subsequently sent Skadden a draft term sheet for the preferred equity investment, which was subsequently negotiated alongside the merger agreement.

On April 29, 2024, members of Company management met with representatives of CPP Investments and GIP in Bloomington, Minnesota to discuss the potential transaction. These meetings were intended to cover CPP Investments and GIP’s post-closing vision for the Company and proposed governance approach. The conversations centered on potential approach to governance post-closing, employees and culture, short-and long-term goals for the Company, regulatory matters and financing. The discussions during the meetings on April 29, 2024 did not focus on the terms of the transaction documents.

On April 30, 2024, members of Company management met with representatives of CPP Investments and GIP in Bloomington, Minnesota to discuss the potential transaction, with a focus on open items in the negotiation of the merger agreement, including regulatory commitments and the covenants applicable to the operation of the business between signing and closing. Representatives of Skadden, Kirkland and J.P. Morgan joined virtually.

On May 1, 2024, Skadden sent a revised draft of the merger agreement to Kirkland. Skadden’s revised draft of the merger agreement included, among other things, modifications to provisions related to the covenants applicable to the operation of the business between signing and closing, regulatory commitments and the termination fee triggers in respect of Parent’s termination fees. The draft also accepted the proposed Parent regulatory termination fee of 4.25% of transaction equity value, so long as it was triggered by a failure to obtain FERC approval in addition to state and HSR approvals.

After market close on May 2, 2024, a British daily financial publication published an online article reporting that the Company was nearing a deal with CPP Investments and GIP for the acquisition of the Company for $5 billion. The article stated that the Company had run an extensive process, with some buyers determining not to pursue the opportunity due to uncertainty around regulated returns and others due to the Company’s large industrial customer base. The Company did not comment on the article, which was consistent with its policy of not commenting on market rumors regarding mergers and acquisitions. Following publication of the article, the price of shares of Company Common Stock increased approximately 6% from the market close on May 2, 2024 to close on May 3, 2024, at $64.27 per share.

On May 2, 2024, following the publication of the online article, members of Company management and Skadden discussed the transaction process with representatives of CPP Investments and GIP and the desire to attempt to close out key points in the merger agreement and other transaction documents.

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On May 3, 2024, certain members of Company management and representatives of CPP Investments and GIP, along with representatives from Skadden, Kirkland and J.P. Morgan, discussed key outstanding issues in the merger agreement, including certain covenants applicable to the operation of the business between signing and closing, the approach with respect to refinancing of the 2025 Notes and the preferred equity investment provisions.

From May 3, 2024 to May 5, 2024, management of the Company and its financial and legal advisors worked with CPP Investments and GIP and their legal advisors to resolve and finalize the remaining open issues in the merger agreement, the Company’s and Parent’s disclosure schedules and other transaction documents, including the equity commitment letter, limited guarantee, debt commitment letter and other ancillary documents, and to finalize a plan for communicating the benefits of the proposed transaction to the Company’s stakeholders.

On May 5, 2024, the Board held a meeting attended by members of Company management and Skadden, and representatives of J.P. Morgan, Houlihan Lokey and Taft attended portions of the meeting. Prior to the Board meeting, copies of the draft merger agreement and other key transaction documents, a summary of the final terms of the merger agreement and proposed board resolutions were made available to the directors. At the meeting, representatives of Skadden provided a refresher on the Board’s fiduciary duties. Members of Company management provided an overview of the standalone financing plan, indicating that it would be challenging to raise the amount of capital for the standalone financing plan to due to the Company’s trading price and challenges with serial equity issuances, as well as the variability of macroeconomic conditions and potentially challenging financial markets for debt offerings. Representatives of Skadden summarized the negotiations that had taken place with CPP Investments and GIP since the Board’s prior meetings and presented the final terms of the merger agreement and other transaction documents, noting the key changes made since prior discussions with the Board. Skadden also reviewed with the Board the terms and conditions of the equity commitment letters and the limited guaranties provided by affiliates of Parent, as well as Parent’s debt commitment letter and the related documentation Parent had negotiated with its lenders, under which the debt financing would be provided, subject to the satisfaction or waiver of certain conditions set forth therein.

Following the presentation and discussion regarding the merger agreement, representatives of J.P. Morgan reviewed the financial aspects of the transaction and provided the Board with an update of its financial analyses with respect to the Company. Representatives of J.P. Morgan rendered its oral opinion to the Board on May 5, 2024 (which was subsequently confirmed in writing by delivery of J.P. Morgan’s written opinion addressed to the Board dated May 5, 2024), that, as of such date, and on the basis of and subject to the factors and assumptions set forth in its opinion, the $67.00 in cash per share of outstanding Company Common Stock to be paid to the holders of Company Common Stock in the proposed Merger was fair, from a financial point of view, to such holders. Subsequently, representatives of Houlihan Lokey provided the Board with its financial analyses with respect to the Company. Subsequently, representatives of Houlihan Lokey rendered its oral opinion to the Board on May 5, 2024 (which was subsequently confirmed in writing by delivery of Houlihan Lokey’s written opinion dated May 5, 2024), that, as of such date, and based upon and subject to the factors and assumptions set forth in its opinion, and in reliance thereon, the $67.00 in cash per share of Company Common Stock to be received by holders of Company Common Stock in the Merger pursuant to the merger agreement was fair, from a financial point of view, to such holders.

Subsequently, certain members of Company management and representatives of Skadden and Taft provided an overview of regulatory matters and strategy and the proposed plan for communicating the benefits of the transaction to the Company’s stakeholders.

Throughout the presentations, the Board and certain members of management and representatives of Skadden engaged in discussion, and the Board considered a variety of factors, including the items discussed in the section entitled “The Proposed Merger—Recommendation of the Company’s Board of Directors and its Reasons for the Merger” beginning on page 37. Among such considerations, the Board determined that the transaction would provide the Company with access to the capital it needs to fund its “Sustainability-In-Action” strategy while maximizing the interests of its stakeholders. Upon request from the Board and in the presence of Company management, Ms. Owen indicated that it was the recommendation of Company management to proceed with executing the merger agreement.

Following such discussion, pursuant to Section 302A.673 of the MBCA the Board unanimously approved and adopted resolutions designating a committee of disinterested directors, composed of all directors of the Board other than Ms. Owen (the “Special Committee”), to consider the form of merger agreement and the transactions contemplated thereby and, if appropriate, to vote on the approval of the merger agreement and the transactions contemplated thereby. The Special Committee included all directors of the Board who are considered “Disinterested

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Directors” for the purposes of Article VII of the Company’s Amended and Restated Articles of Incorporation. Thereafter, the Special Committee unanimously approved and adopted resolutions approving and adopting the merger agreement and the transactions contemplated thereby and recommending to the full Board the authorization and approval of the merger agreement and the transactions contemplated thereby and the affirmative recommendation of the Board to the shareholders of the Company with respect thereto. Subsequently, the Board unanimously approved and adopted resolutions determining that the merger agreement and the transactions contemplated thereby are advisable and in the best interests of the Company, approving, adopting and authorizing the merger agreement and the transactions contemplated thereby, resolving that the merger agreement be submitted to a vote of the holders of the Company Common Stock at a special meeting of shareholders and recommending that such shareholders of the Company vote to approve and adopt the merger agreement and the transactions contemplated thereby.

Thereafter, during the evening of May 5, 2024, the Company, Parent and Merger Sub signed the Merger Agreement.

On May 6, 2024, the Company, CPP Investments and GIP issued a joint press release before the market opened announcing the entry into the Merger Agreement.

Recommendation of the Company’s Board and its Reasons for the Merger

In evaluating the Merger Agreement, the Merger and the other transactions contemplated by the Merger Agreement, the Board consulted with the Company’s management team, as well as the Company’s outside legal and financial advisors, and considered a number of factors. In reaching a determination to approve, adopt and authorize the Merger Agreement, the Plan of Merger and the transactions contemplated thereby, including the Merger, the Board considered a number of factors, both positive and negative, and potential benefits and detriments of the Merger to the Company. The following factors considered by the Board are not intended to be exhaustive, but the Company believes this summary includes all material factors considered by the Board:

Share Price. The Board considered our historical stock prices, including that the Merger Consideration represented a premium of approximately 19% relative to the unaffected closing price for shares of Company Common Stock on December 4, 2023 (the last trading day prior to the initial publication of market rumors regarding a potential acquisition of the Company) and a premium of approximately 22% over the 30-day volume weighted average price prior to that date. The Merger Consideration reflects a premium of approximately 10% relative to the closing price for shares of Company Common Stock on May 2, 2024 (at market close prior to the publication of the May 2, 2024, market rumors regarding a potential acquisition of the Company). The Board considered that the all-cash per share Merger Consideration will provide our shareholders with immediate value, in cash, for their shares of Company Common Stock, while avoiding the long-term business risk of retaining their shares of Company Common Stock, and while also providing such shareholders with certainty of value for their shares of Company Common Stock if the Merger is completed.

Impact of the Merger on Customers. The Board evaluated the expected impact of the Merger on our customers, including Parent’s commitment that the Company will not attempt to recover in rates the acquisition premium of the transactions contemplated by the Merger Agreement from our utility customers. The Board also considered Parent’s commitment that the Company will not attempt to recover in rates the costs of executing the Merger nor will the Company attempt to recover in rates transition costs, except to the extent the transition costs produce savings. The Board also considered that the Merger is not expected to impact our day-to-day operations or our commitments to service and safety.

Impact of the Merger on Communities. The Board considered the fact that Parent has agreed to maintain the headquarters of the Company’s regulated businesses in Duluth, Minnesota and Superior, Wisconsin and to maintain the current senior management team. The Board also considered that Parent agreed to maintain historic levels of economic development and charitable contributions in the service territories of the Company and its subsidiaries for five years after the Closing.

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Impact of the Merger on Employees. The Board evaluated the expected impact of the Merger on our employees and considered that under the terms of the Merger Agreement, Parent agreed to provide each Company nonunion employee who continues employment with us as of the Effective Time with certain protections (generally for the two-year period following the Merger), including (1) the same or better employment position in the same location as held by the Company employee immediately prior to the Effective Time, (2) a base salary or wage rate that is no less favorable than that provided to the Company employee immediately prior to the Merger, (3) aggregate annual and long-term incentive compensation target opportunities that are no less favorable than those provided to the Company employee immediately prior to the Merger, and (4) employee benefits that are no less favorable in the aggregate than those provided to the Company employee immediately prior to the Merger. Parent has also agreed to other customary employee protections, such as recognition of pre-Merger service with the Company for benefit plan purposes, waiver of pre-existing condition limitations under post-Merger health plans and credit for deductibles and co-payments under post-Closing plans for the year of the Merger. The Board also considered Parent’s commitment to cause the Company to honor the terms of existing collective bargaining agreements. See the section entitled “The Merger Agreement—Employee Matters” beginning on page 83 for more information.

Financial Considerations. The Board considered our standalone financing plan and our current and historical financial condition. The Board further considered certain long-term financial projections for the Company prepared by members of the Company’s management beginning in June 2023, which reflect an application of various assumptions of management, as further discussed in the section entitled “The Proposed Merger—Forward-Looking Financial Information” beginning on page 53. The Board considered the expected financial impact of the Merger on us. The Board also considered the risks of remaining as a standalone publicly traded company, including any risks of execution on the business plan and the Company’s need to raise capital to fund growth. The Board considered that a merger with Parent may provide the Company with increased access to capital to advance the Company’s growth strategy.

Recommendation of Management. The Board took into account the recommendation of our management in favor of the Merger. In taking that recommendation into account, the Board was aware that certain members of management had certain interests, including financial interests, in the Merger that may be different from, or in addition to, the interests of our shareholders generally. See the section entitled “Interests of the Company’s Directors and Executive Officers in the Merger” beginning on page 61 for more information.

Opinions of Financial Advisors. The Board considered J.P. Morgan’s oral opinion that was rendered to the Board on May 5, 2024 (which was subsequently confirmed in writing by delivery of J.P. Morgan’s written opinion addressed to the Board dated May 5, 2024), that, as of such date, and on the basis of and subject to the factors and assumptions set forth in its opinion, the Merger Consideration to be paid to the holders of Company Common Stock in the proposed Merger was fair, from a financial point of view, to such holders of Company Common Stock. The Board further considered the financial analysis reviewed by Houlihan Lokey with the Board as well as the oral opinion of Houlihan Lokey rendered to the Board on May 5, 2024 (which was subsequently confirmed in writing by delivery of Houlihan Lokey’s written opinion addressed to the Board dated May 5, 2024), to the effect that, as of such date, and based on and subject to the assumptions, limitations, qualifications and other matters set forth in its opinion, the Merger Consideration to be received by the holders of Company Common Stock in the Merger pursuant to the Merger Agreement was fair, from a financial point of view, to such holders. See the section entitled “The Proposed Merger—Opinion of J.P. Morgan Securities LLC” beginning on page 41 and the opinion attached as Annex B to this proxy statement and the section entitled “The Proposed Merger—Opinion of Houlihan Lokey Capital, Inc.” beginning on page 46 and the opinion attached as Annex C to this proxy statement.

Consideration of Alternatives. The Board considered the trends and competitive developments in the industry and the range of strategic alternatives available to us, including the prospects for the Company continuing to operate as a standalone public entity, including the possibility of divesting of certain assets or issuing additional equity to fund growth. The Board decided to focus outreach on infrastructure and pension funds because the Board believed such parties would have the financial resources to invest in the substantial future capital growth needs of the Company and because of concerns that strategic buyers, which might not be willing to partner with the Company to support regulatory goals in Minnesota and Wisconsin in light of focus on separate interests, could be less attractive investors from a regulatory perspective. The Board conducted a thorough review of a potential sale of the Company. The Board believed that the consideration reflected in the Merger Agreement was the best transaction that could be obtained by

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Company shareholders from Parent at the time, and that there was no assurance that a more favorable opportunity to sell the Company would arise later or through any alternative transaction. The Board also considered the fact that the Company had not received any other competitive proposals, despite media speculation that the Company was exploring a potential sale.

Preferred Equity Investment. The Board considered that Parent agreed to a construct pursuant to which, at the Company’s request, Parent may elect to provide interim financing to the Company. In connection therewith, Parent agreed to cooperate in good faith and use commercially reasonable efforts to negotiate and finalize definitive documents in accordance with the terms set forth on Exhibit D to the Merger Agreement, a copy of which is attached as Annex A to this proxy statement. See the section entitled “The Proposed Merger—Preferred Equity Investment” beginning on page 22 for more information.

Sustainability and Environmental Impact. The Board considered that the Merger will help the Company to advance the Company’s “Sustainability-in-Action” strategy and enhance our commitment to provide affordable, reliable, and increasingly clean energy to our customers, including through the Company’s renewable platform businesses.

Experienced Partners. The Board considered the experience of CPP Investments and GIP and their respective successful track records of long-term partnerships with infrastructure businesses.

Timing. The Board considered the timing of the Merger and the risk that if we did not accept Parent’s offer, we may not have another opportunity to do so. The Board considered the risk that, if the Company raised capital to fund growth as a standalone public entity, a future sale process would be less competitive.

Terms of the Merger Agreement. The Board reviewed and considered the terms of the Merger Agreement, including the representations and warranties of each party, the conditions to Closing, our right to consider and engage in negotiations regarding potentially superior proposals, the Board’s right to withdraw or otherwise change its recommendation to our shareholders in favor of the proposals related to the Merger Agreement, the rights of each party to terminate the Merger Agreement and the obligations of each party to pay a termination fee under certain circumstances. See the section entitled “The Merger Agreement” beginning on page 68 for a detailed discussion of the terms and conditions of the Merger Agreement.

Likelihood of Completion of the Merger. The Board considered the likelihood that the Merger will be completed on a timely basis, including the likelihood that the Merger will receive all necessary regulatory approvals without unacceptable conditions and that all conditions to consummation of the Merger will be satisfied. To that end, the Board further considered the potential length of the regulatory approvals process and that the Merger Agreement provides that, subject to certain exceptions, it may not be terminated until August 5, 2025, which may be extended for up to two successive three-month periods under specified circumstances. The Board also considered the absence of a financing condition in the Merger Agreement and the fact that Parent has entered into the Debt Commitment Letter pursuant to which, subject to the terms and conditions set forth therein, the commitment parties committed to provide (1) a senior secured term loan facility in an aggregate amount of up to $600 million; (2) a senior secured revolving credit facility in an aggregate amount of up to $100 million; (3) a senior unsecured 364-day backstop term loan facility in an aggregate amount of up to $150 million; (4) a senior unsecured backstop revolving credit facility in an aggregate amount of up to $355 million; and (5) a senior unsecured backstop letter of credit facility in an aggregate amount of up to $160 million, in each case, to fund a portion of the Merger Consideration. The Board also considered that the Sponsors committed to make an equity contribution to Parent of up to $3.58 billion pursuant to the equity commitment agreements. See the section entitled “The Proposed Merger—Financing” beginning on page 19 for more information.

Continued Payment of Dividend. The Board considered the Merger Agreement provision permitting us to continue to pay quarterly cash dividends consistent with our past practices in an amount not to exceed 5% per share more than the dividend payable during the prior 12-month period and to pay a “stub” dividend in respect of the quarter in which the Merger is completed.

Treatment of Company Equity Awards. The Board evaluated the fact that each outstanding RSU, PSA and DSU will be canceled and converted into cash awards at the Effective Time, either payable as soon as practicable after the Effective Time or subject to the same time-vesting or deferral elections as applied to the corresponding RSU, PSA or DSU, as applicable, as detailed in the section entitled “The Merger Agreement—Treatment of Company Equity Awards” beginning on page 69.

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The Board also considered potential risks associated with the Merger, including the following:

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No Ongoing Equity Interest. The Board considered that our shareholders will have no ongoing equity interest in the Company following the Merger, and that such shareholders will therefore cease to participate in the future earnings or growth that we may achieve, or to benefit from increases, if any, in the value of the Company Common Stock following the completion of the Merger.

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Regulatory Approvals. The Board considered the regulatory approvals that are required in connection with the Merger and the risk that governmental authorities and third parties may seek to impose unfavorable terms or conditions on the required approvals or that those approvals may not be obtained at all.

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Interim Operations. The Board considered the terms of the Merger Agreement that place restrictions on the conduct of our businesses prior to completion of the Merger, generally requiring us to conduct our business in the ordinary course in all material respects and prohibiting us from taking specified actions without Parent’s consent, which could delay or prevent us from undertaking business opportunities that may arise prior to completion of the Merger and the resultant risk if the Merger is not consummated.

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Shareholder Approval and Related Termination Fee. The Board considered the approvals of our shareholders being sought in connection with the Merger, and the fact that if the Merger Agreement is terminated due to a failure of holders of at least a majority of the outstanding shares of Company Common Stock entitled to vote at the Special Meeting to vote to approve the Merger Proposal, if we enter into a subsequent merger transaction, we may under certain circumstances be required to pay a termination fee to Parent of $116 million.

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Inability to Solicit Alternative Takeover Proposals. The Board considered the risk that, although we have the right under certain limited circumstances to consider and participate in negotiations with respect to unsolicited proposals for alternative transactions, the Merger Agreement contains provisions relating to the potential payment by us of a termination fee of $116 million in connection with an alternative transaction, which may have the effect of discouraging such proposals. In addition, the Board considered the fact that the Merger Agreement contains customary covenants prohibiting the Company from soliciting other offers and alternative proposals or engaging in discussion regarding such proposals, subject to exceptions, and from terminating the Merger Agreement to enter into an agreement with respect to an alternative transaction, any of which could have the effect of discouraging such proposals from being made or pursued, even if potentially more favorable to our shareholders than the Merger.

•	Effect of Announcement. The Board considered the potential effect of the public announcement of the Merger on the Company’s employees, customers, regulators and operations, as well as its ability to attract and retain personnel while the Merger is pending.

•	Litigation Risk. The Board considered the risk of litigation in connection with the consummation of the Merger which, even where lacking merit, could nonetheless result in distraction and expense.

•

Transaction Costs. The Board took into account the possibility that if the Merger is not consummated, the Company would have incurred substantial transaction and opportunity costs, including the diversion of management and employee attention and the potential effect of such diversion on the Company’s business and its relations with regulators.

•

U.S. Federal Income Tax Impacts. The Board considered that the receipt of cash in exchange for shares of Company Common Stock pursuant to the Merger will generally be a taxable transaction for U.S. federal income tax purposes for many of our shareholders, as more fully described in the section entitled “The Proposed Merger—Certain U.S. Federal Income Tax Considerations of the Merger” beginning on page 55.

The foregoing discussion of factors considered by the Board is not intended to be exhaustive but includes the material factors considered by the Board. In light of the variety of factors considered in connection with its evaluation of the Merger, the Board did not find it practicable to, and did not, quantify or otherwise assign relative weights to the specific factors considered in reaching its determinations and recommendations. Moreover, each member of the Board applied each member’s own personal business judgment to the process and may have given different weight to different factors. The Board did not undertake to make any specific determination as to whether any factor, or any particular aspect of any factor, supported or did not support its ultimate determination. The Board based its recommendation on the totality of the information presented.

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In considering the recommendations of the Board with respect to the Merger, our shareholders should be aware that the directors and executive officers of the Company have certain interests, including financial interests, in the Merger that may be different from, or in addition to, the interests of our shareholders generally. The Board was aware of these interests and considered them, among other matters, in approving the Merger Agreement, and in making its recommendation that our shareholders approve the Merger Proposal. See the section entitled “Interests of the Company’s Directors and Executive Officers in the Merger” beginning on page 61 for more information.

The Board believes that, overall, the potential benefits of the Merger to our shareholders outweigh the risks and uncertainties of the Merger, and the Board unanimously recommends that shareholders vote FOR approval of the Merger Proposal.

Opinion of J.P. Morgan Securities LLC

Pursuant to an engagement letter, the Company retained J.P. Morgan as its financial advisor in connection with the proposed Merger.

At the meeting of the Board on May 5, 2024, J.P. Morgan rendered its oral opinion to the Board that, as of such date and based upon and subject to the factors and assumptions set forth in its opinion, the Merger Consideration to be paid to the holders of Company Common Stock in the proposed Merger was fair, from a financial point of view, to such holders. J.P. Morgan has confirmed its May 5, 2024 oral opinion by delivering its written opinion to the Board, dated May 5, 2024, that, as of such date, the Merger Consideration to be paid to the holders of Company Common Stock in the proposed Merger was fair, from a financial point of view, to such holders.

The full text of the written opinion of J.P. Morgan dated May 5, 2024, which sets forth, among other things, the assumptions made, matters considered and limits on the review undertaken, is attached as Annex B to this proxy statement and is incorporated herein by reference. The summary of the opinion of J.P. Morgan set forth in this proxy statement is qualified in its entirety by reference to the full text of such opinion. The Company’s shareholders are urged to read the opinion in its entirety. J.P. Morgan’s written opinion was addressed to the Board (in its capacity as such) in connection with and for the purposes of its evaluation of the proposed Merger, was directed only to the Merger Consideration to be paid in the proposed Merger and did not address any other aspect of the proposed Merger. J.P. Morgan expressed no opinion as to the fairness of any consideration paid in connection with the Merger to holders of any other class of securities, creditors or other constituencies of the Company or as to the underlying decision by the Company to engage in the proposed Merger. The issuance of J.P. Morgan’s opinion was approved by a fairness committee of J.P. Morgan. The opinion does not constitute a recommendation to any shareholders of the Company as to how such shareholder should vote with respect to the proposed Merger or any other matter.

In arriving at its opinion, J.P. Morgan, among other things:

•	reviewed a draft dated May 5, 2024 of the Merger Agreement;

•	reviewed certain publicly available business and financial information concerning the Company and the industries in which it operates;

•	compared the proposed financial terms of the proposed Merger with the publicly available financial terms of certain transactions involving companies J.P. Morgan deemed relevant and the consideration paid for such companies;

•

compared the financial and operating performance of the Company with publicly available information concerning certain other companies J.P. Morgan deemed relevant and reviewed the current and historical market prices of the Company Common Stock and certain publicly traded securities of such other companies;

•	reviewed certain internal financial analyses and forecasts prepared by the management of the Company relating to its business (the “Forecasts”) as further described in the section entitled “The Proposed Merger—Forward-Looking Financial Information” beginning on page 53; and

•	performed such other financial studies and analyses and considered such other information as J.P. Morgan deemed appropriate for the purposes of its opinion.

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In addition, J.P. Morgan held discussions with certain members of the management of the Company with respect to certain aspects of the proposed Merger, and the past and current business operations of the Company, the financial condition and future prospects and operations of the Company, and certain other matters J.P. Morgan believed necessary or appropriate to its inquiry.

In giving its opinion, J.P. Morgan relied upon and assumed the accuracy and completeness of all information that was publicly available or was furnished to or discussed with J.P. Morgan by the Company or otherwise reviewed by or for J.P. Morgan, and J.P. Morgan did not independently verify any such information or its accuracy or completeness and, pursuant to J.P. Morgan’s engagement letter with the Company, J.P. Morgan did not assume any obligation to undertake any such independent verification or assume any responsibility or liability therefor. J.P. Morgan did not conduct or was not provided with any valuation or appraisal of any assets or liabilities, nor did J.P. Morgan evaluate the solvency of the Company or Parent under any applicable laws relating to bankruptcy, insolvency or similar matters. In relying on the Forecasts provided to J.P. Morgan or derived therefrom, J.P. Morgan assumed that they were reasonably prepared based on assumptions reflecting the best currently available estimates and judgments by management of the Company as to the expected future results of operations and financial condition of the Company to which the Forecasts relate. J.P. Morgan expressed no view as to the Forecasts or the assumptions on which they were based. J.P. Morgan also assumed that the proposed Merger and the other transactions contemplated by the Merger Agreement would be consummated as described in the Merger Agreement, and that the definitive Merger Agreement would not differ in any material respect from the draft thereof furnished to J.P. Morgan. J.P. Morgan also assumed that the representations and warranties made by the Company, Parent and Merger Sub in the Merger Agreement and the related agreements were and will be true and correct in all respects material to its analysis. J.P. Morgan is not a legal, regulatory or tax expert and relied on the assessments made by advisors to the Company with respect to such issues. J.P. Morgan further assumed that all material governmental, regulatory or other consents and approvals necessary for the consummation of the proposed Merger will be obtained without any adverse effect on the Company or on the contemplated benefits of the proposed Merger.

The Forecasts furnished to J.P. Morgan were prepared by the Company’s management. The Company does not publicly disclose internal management projections of the type provided to J.P. Morgan in connection with J.P. Morgan’s analysis of the proposed Merger, and the Forecasts were not prepared with a view toward public disclosure. The Forecasts were based on numerous variables and assumptions that are inherently uncertain and may be beyond the control of the Company’s management, including, without limitation, factors related to general economic and competitive conditions and prevailing interest rates. Accordingly, actual results could vary significantly from those set forth in the Forecasts.

J.P. Morgan’s opinion was necessarily based on economic, market and other conditions as in effect on, and the information made available to J.P. Morgan as of, the date of such opinion. J.P. Morgan’s opinion noted that subsequent developments may affect J.P. Morgan’s opinion, and that J.P. Morgan does not have any obligation to update, revise or reaffirm such opinion. J.P. Morgan’s opinion is limited to the fairness, from a financial point of view, of the Merger Consideration to be paid to the holders of the Company Common Stock in the proposed Merger, and J.P. Morgan has expressed no opinion as to the fairness of any consideration paid in connection with the Merger to the holders of any other class of securities, creditors or other constituencies of the Company or as to the underlying decision by the Company to engage in the proposed Merger. Furthermore, J.P. Morgan expressed no opinion with respect to the amount or nature of any compensation paid or to be paid to any officers, directors, or employees of any party to the proposed Merger, or any class of such persons relative to the Merger Consideration to be paid to the holders of the Company Common Stock in the proposed Merger or with respect to the fairness of any such compensation.

The terms of the Merger Agreement, including the Merger Consideration, were determined through arm’s length negotiations between the Company and Parent, and the decision to enter into the Merger Agreement was solely that of the Board. J.P. Morgan’s opinion and financial analyses were only one of many factors considered by the Board in its evaluation of the proposed Merger and should not be viewed as determinative of the views of the Board or management with respect to the proposed Merger or the Merger Consideration to be paid to the holders of Company Common Stock.

In accordance with customary investment banking practice, J.P. Morgan employed generally accepted valuation methodology in rendering its opinion to the Board on May 5, 2024, and in the presentation delivered to the Board on such date in connection with the rendering of such opinion. The following is a summary of the material financial analyses undertaken by J.P. Morgan in connection with rendering such opinion and contained in such presentation, and does not purport to be a complete description of the analyses or data presented by J.P. Morgan. Some of the

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summaries of the financial analyses include information presented in tabular format. The tables are not intended to stand alone, and in order to more fully understand the financial analyses used by J.P. Morgan, the tables must be read together with the full text of each summary. Considering the data set forth below without considering the full narrative description of the financial analyses, including the methodologies and assumptions underlying the analyses, could create a misleading or incomplete view of J.P. Morgan’s analyses.

Public Trading Multiples. Using publicly available information, J.P. Morgan compared selected financial data of the Company with similar data for selected publicly traded companies engaged in businesses which J.P. Morgan judged to be analogous to those of the Company. The companies selected by J.P. Morgan were IDACORP, Inc., Portland General Electric Company, Black Hills Corporation, NorthWestern Energy Group, Inc., Avista Corporation, MDU Resources Group, Inc., Algonquin Power & Utilities Corp. and Otter Tail Corporation. This group includes regulated utilities and utilities that also have unregulated businesses. These companies were selected, among other reasons, because they are publicly traded companies with operations and businesses that, for purposes of J.P. Morgan’s analyses, may be considered sufficiently similar to those of the Company or aspects thereof based on business sector participation, operational characteristics and financial metrics. However, none of the selected companies reviewed are identical to the Company and certain of these companies have financial and operating characteristics that are materially different from those of the Company. The analyses necessarily involve complex considerations and judgments concerning differences in financial and operational characteristics of the companies involved and other factors that could affect the companies differently than they would affect the Company.

Using information obtained from the selected companies’ public filings and FactSet Research Systems as of May 2, 2024, J.P. Morgan calculated for each selected company the ratio of such company’s closing share price as of May 2, 2024, to the consensus equity research analyst estimates for such company’s projected earnings per share (which is referred to as “EPS”) for the calendar years 2024 and 2025 (which is referred to as “2024E EPS” and “2025E EPS,” respectively). J.P. Morgan calculated the median and the mean values for each multiple, specifically: 15.5x and 15.5x for 2024E EPS, respectively, and 14.1x and 14.4x for 2025E EPS, respectively.

	Implied Per Share Equity Value
	Low	High
2024E EPS	$52.00	$65.00
2025E EPS	$54.25	$66.25

The ranges of implied per share equity values were compared to the Merger Consideration of $67.00 per share.

For reference only, J.P. Morgan also compared the ranges of implied per share equity values to (1) the 30-day volume-weighted average price per share of Company Common Stock of $59.21, which J.P. Morgan calculated as of May 2, 2024 (the “Affected VWAP”), (2) the unaffected 30-day volume weighted average price per share of Common Stock of $54.88, which J.P. Morgan calculated as of December 4, 2024 (the “Unaffected VWAP”) and (3) the per share equity values that J.P. Morgan calculated by applying the median multiple values for 2024E EPS and 2025E EPS to the Company’s projected EPS for the 12-month periods ending December 31, 2024 and December 31, 2025, respectively, as set forth in the Forecasts, which were $57.50 and $56.50, respectively.

Using information obtained from the selected companies’ public filings and FactSet Research Systems as of May 2, 2024, J.P. Morgan calculated for each selected company the ratio of such company’s firm value (calculated as the market value of the company’s common stock on a fully diluted basis, plus any net debt and minority interest) (which is referred to as “FV”) as of May 2, 2024, to the consensus equity research analyst estimates for such company’s earnings before interest, taxes, depreciation and amortization, unburdened by stock-based compensation (which is referred to as “EBITDA”) for the calendar years 2024 and 2025 (which are referred to as “FV / 2024E EBITDA” and “FV / 2025E EBITDA,” respectively). J.P. Morgan calculated the median and the mean values for each multiple, specifically: 10.3x and 11.0x for FV / 2024E EBITDA, respectively, and 10.0x and 10.4x for FV / 2025E EBITDA, respectively.

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Based on the results of this analysis and on other factors J.P. Morgan considered appropriate based on their experience and professional judgment, J.P. Morgan selected a multiple reference range of 10.0x to 14.0x for FV / 2024E EBITDA and a multiple reference range of 9.5x to 11.5x for FV / 2025E EBITDA. The multiple reference ranges were then applied to the projected EBITDA for the Company for the 12-month periods ending December 31, 2024, and December 31, 2025, respectively, as set forth in the Forecasts, to derive ranges of firm values for the Company, which were adjusted to take into account the Company’s net debt and minority interest balance of $1.728 million and $598 million, respectively, as of December 31, 2023, as provided by management of the Company to J.P. Morgan, to derive the following ranges of implied per share equity values for the Company Common Stock, rounded to the nearest $0.25:

	Implied Per Share Equity Value
	Low	High
FV / 2024E EBITDA	$40.00	$72.25
FV / 2025E EBITDA	$50.25	$69.50

The ranges of implied per share equity values were compared to the Merger Consideration of $67.00 per share.

For reference only, J.P. Morgan also compared the ranges of implied per share equity values to (1) the Affected VWAP of $59.21, (2) the Unaffected VWAP of $54.88 and (3) the per share equity values that J.P. Morgan calculated by applying the median multiple values for FV / 2024E EBITDA and FV / 2025E EBITDA to the Company’s projected EBITDA for the 12-month periods ending December 31, 2024, and December 31, 2025, respectively, as set forth in the Forecasts, which were $42.50 per share and $55.00 per share, respectively.

Selected Transaction Analysis. Using publicly available information, J.P. Morgan examined selected transactions involving businesses which J.P. Morgan judged to be sufficiently analogous to the Company’s business (or aspects thereof) based on J.P. Morgan’s experience and familiarity with the industries in which the Company operates. Specifically, J.P. Morgan reviewed the following transactions:

Month and Year Announced	Acquiror	Target
September 2023	Enbridge Inc.	Dominion Energy Inc.
February 2022	Infrastructure Investments Fund	South Jersey Industries, Inc.
October 2021	Algonquin Power & Utilities Corp.	American Electric Power, Inc. (Kentucky operations)
March 2021	PPL Corporation	The Narragansett Electric Company
October 2020	AVANGRID, Inc.	PNM Resources, Inc.
June 2019	Infrastructure Investments Fund	El Paso Electric Company
May 2018	NextEra Energy, Inc.	Gulf Power Company

Using publicly available information, J.P. Morgan calculated, for each selected transaction, the multiple of the target company’s share price implied by the relevant transaction to the target company’s EPS for the 12 months immediately preceding the announcement of the transaction (“LTM P/E”).

Based on this analysis and on other factors, J.P. Morgan considered appropriate based on their experience and professional judgment, J.P. Morgan selected a multiple reference range for the Company’s share price to the Company’s EPS for the calendar year ending 2023 (which is referred to as “Price / 2023 EPS”) of 17.5x to 30.0x. This multiple was then applied to the Company’s EPS for the 12-month period ending December 31, 2023, as set forth in the Forecasts to derive the following range of implied per share equity values for the Company Common Stock, rounded to the nearest $0.25:

	Implied Per Share Equity Value
	Low	High
Price / 2023A EPS	$63.00	$108.00

The ranges of implied per share equity values were compared to the Merger Consideration of $67.00 per share.

For reference only, J.P. Morgan also compared the ranges of implied per share equity values to (1) the Affected VWAP of $59.21, (2) the Unaffected VWAP of $54.88 and (3) the per share equity values that J.P. Morgan calculated by applying the median multiple value for Price / 2023A EPS to the Company’s EPS for the 12-month period ending December 31, 2023 as set forth in the Forecasts, which J.P. Morgan calculated as $80.50 per share.

Discounted Cash Flow Analysis. J.P. Morgan conducted a discounted cash flow analysis using the unlevered free cash flows that the Company is expected to generate during fiscal years 2024 through 2042 as set forth in the

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Forecasts. J.P. Morgan calculated a range of terminal values for the Company by applying a range of terminal growth rates ranging from 1.50% to 2.0% to the total revenue of the Company in its terminal year as set forth in the Forecasts. J.P. Morgan then discounted the unlevered free cash flows and the range of terminal values to present values as of December 31, 2023, using a range of discount rates from 6.00% to 6.50%, which range was chosen by J.P. Morgan based upon an analysis of the weighted average cost of capital of the Company.

The present value of the unlevered free cash flows and the range of terminal values were then adjusted for the Company’s net debt and minority interest balance of $1.728 million and $598 million, respectively, as of December 31, 2023, which estimates were provided by management of the Company. This analysis indicated a range of implied per share equity values for the Company Common Stock, rounded to the nearest $0.25, of between $53.75 and $84.50.

The ranges of implied per share equity values were compared to the Merger Consideration of $67.00 per share.

For reference only, J.P. Morgan also compared the ranges of implied per share equity values to the Affected VWAP of $59.21 and the Unaffected VWAP of $54.88.

Other Information

J.P. Morgan also reviewed the Company’s 52-week historical trading and analyst price targets, in each case as of May 2, 2024, which ranged from $49.29 to $63.71 and $53.00 to $62.00, respectively. J.P. Morgan noted that historical stock trading and analyst price targets analyses are not valuation methodologies but were presented merely for informational purposes.

Miscellaneous

The foregoing summary of certain material financial analyses does not purport to be a complete description of the analyses or data presented by J.P. Morgan. The preparation of a fairness opinion is a complex process and is not necessarily susceptible to partial analysis or summary description. J.P. Morgan believes that the foregoing summary and its analyses must be considered as a whole and that selecting portions of the foregoing summary and these analyses, without considering all of its analyses as a whole, could create an incomplete view of the processes underlying the analyses and its opinion. As a result, the ranges of valuations resulting from any particular analysis or combination of analyses described above were merely utilized to create points of reference for analytical purposes and should not be taken to be the view of J.P. Morgan with respect to the actual value of the Company. The order of analyses described does not represent the relative importance or weight given to those analyses by J.P. Morgan. In arriving at its opinion, J.P. Morgan did not attribute any particular weight to any analyses or factors considered by it and did not form an opinion as to whether any individual analysis or factor (positive or negative), considered in isolation, supported or failed to support its opinion. Rather, J.P. Morgan considered the totality of the factors and analyses performed in determining its opinion.

Analyses based upon forecasts of future results are inherently uncertain, as they are subject to numerous factors or events beyond the control of the parties and their advisors. Accordingly, forecasts and analyses used or made by J.P. Morgan are not necessarily indicative of actual future results, which may be significantly more or less favorable than suggested by those analyses. Moreover, J.P. Morgan’s analyses are not and do not purport to be appraisals or otherwise reflective of the prices at which businesses actually could be acquired or sold. None of the selected companies reviewed as described in the above summary is identical to the Company, and none of the selected transactions reviewed was identical to the proposed Merger. However, the companies selected were chosen because they are publicly traded companies with operations and businesses that, for purposes of J.P. Morgan’s analysis, may be considered similar to those of the Company. The transactions selected were similarly chosen because their participants, size and other factors, for purposes of J.P. Morgan’s analysis, may be considered similar to the proposed Merger. The analyses necessarily involve complex considerations and judgments concerning differences in financial and operational characteristics of the companies involved and other factors that could affect the companies compared to the Company and the transactions compared to the proposed Merger.

As a part of its investment banking business, J.P. Morgan and its affiliates are continually engaged in the valuation of businesses and their securities in connection with mergers and acquisitions, investments for passive and control purposes, negotiated underwritings, secondary distributions of listed and unlisted securities, private

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placements, and valuations for corporate and other purposes. J.P. Morgan was selected to advise the Company with respect to the proposed Merger on the basis of, among other things, such experience and its qualifications and reputation in connection with such matters and its familiarity with the Company and the industries in which it operates.

For services rendered in connection with the proposed Merger and the delivery of its opinion, the Company has agreed to pay J.P. Morgan a fee of approximately $41 million, of which $4 million became payable upon delivery of its opinion and the remainder of which is contingent and payable upon the Closing. In addition, the Company has agreed to reimburse J.P. Morgan for its expenses incurred in connection with its services, including the fees and disbursements of counsel, and will indemnify J.P. Morgan against certain liabilities arising out of J.P. Morgan’s engagement. During the two years preceding the date of J.P. Morgan’s opinion, J.P. Morgan and its affiliates have had and continue to have commercial or investment banking relationships with the Company for which J.P. Morgan and such affiliates have received or will receive customary compensation. Such services during such period have included acting as sole lead arranger and sole bookrunner on the Company’s credit facility in October 2023. During the two-year period preceding the date of J.P. Morgan’s opinion, neither J.P. Morgan nor its affiliates have had any material financial advisory or other material commercial or investment banking relationships with CPP Investments or CalPERS. During the two years preceding the date of J.P. Morgan’s opinion, J.P. Morgan and its affiliates have had commercial or investment banking relationships with portfolio companies of CPP Investments for which J.P. Morgan and such affiliates have received customary compensation. Such services during such period have included providing debt syndication, debt underwriting and financial advisory services. During the two years preceding the date of J.P. Morgan’s opinion, J.P. Morgan and its affiliates have had commercial or investment banking relationships with GIP and its portfolio companies for which J.P. Morgan and such affiliates have received customary compensation. Such services during such period have included acting as financial advisor in connection with GIP’s acquisition of a minority stake in NextDecade Rio Grande in June 2023 and providing debt syndication and debt underwriting services to portfolio companies of GIP. In addition, J.P. Morgan’s commercial banking affiliate is an agent bank and a lender under outstanding credit facilities of the Company, portfolio companies of CPP Investments and portfolio companies of GIP, for which it receives customary compensation or other financial benefits. During the two-year period preceding delivery of its opinion ending on May 5, 2024, the aggregate fees recognized by J.P. Morgan from the Company were approximately $6.5 million, from CPP Investments and its controlled portfolio companies were approximately $135 million, from GIP and its controlled portfolio companies were approximately $50 million, and from CalPERS were approximately $20 million. In addition, J.P. Morgan and its affiliates hold, on a proprietary basis, less than 1% of the outstanding Common Stock of the Company. In the ordinary course of their businesses, J.P. Morgan and its affiliates may actively trade the debt and equity securities or financial instruments (including derivatives, bank loans or other obligations) of the Company for their own accounts or for the accounts of customers and, accordingly, J.P. Morgan may at any time hold long or short positions in such securities or other financial instruments.

Opinion of Houlihan Lokey Capital, Inc.

On May 5, 2024, Houlihan Lokey orally rendered its opinion to the Board (which was subsequently confirmed in writing by delivery of Houlihan Lokey’s written opinion addressed to the Board dated May 5, 2024), to the effect that, as of such date, and based on and subject to the assumptions, limitations, qualifications and other matters set forth in its opinion, the Merger Consideration to be received by the holders of Company Common Stock in the Merger pursuant to the Merger Agreement was fair, from a financial point of view, to such holders.

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In connection with its opinion, Houlihan Lokey made such reviews, analyses and inquiries as Houlihan Lokey deemed necessary and appropriate under the circumstances. Among other things, Houlihan Lokey:

1.	reviewed a draft, dated May 5, 2024, of the Merger Agreement;

2.	reviewed certain publicly available business and financial information relating to the Company that Houlihan Lokey deemed to be relevant;

3.	reviewed certain information relating to the historical, current and future operations, financial condition and prospects of the Company made available to Houlihan Lokey by the Company, including the Forecasts;

4.	spoke with certain members of the management of the Company and certain of the Company’s representatives and advisors regarding the business, operations, financial condition and prospects of the Company, the Merger and related matters;

5.	compared the financial and operating performance of the Company with that of other companies with publicly traded equity securities that Houlihan Lokey deemed to be relevant;

6.	considered the publicly available financial terms of certain transactions that Houlihan Lokey deemed to be relevant;

7.	reviewed the current and historical market prices and trading volume for certain of the Company’s publicly traded securities, and the current and historical market prices of the publicly traded securities of certain other companies that Houlihan Lokey deemed to be relevant; and

8.	conducted such other financial studies, analyses and inquiries and considered such other information and factors as Houlihan Lokey deemed appropriate.

Houlihan Lokey relied upon and assumed, without independent verification, the accuracy and completeness of all data, material and other information furnished, or otherwise made available, to it, discussed with or reviewed by it, or publicly available, and did not assume any responsibility with respect to such data, material and other information. In addition, management of the Company advised Houlihan Lokey and, at the Board’s direction, Houlihan Lokey assumed that the Forecasts were reasonably prepared in good faith on bases reflecting the best currently available estimates and judgments of such management as to the future financial results and condition of the Company. At the Board’s direction, Houlihan Lokey assumed that the Forecasts provided a reasonable basis on which to evaluate the Company and the Merger, and Houlihan Lokey, at the Board’s direction, used and relied upon the Forecasts for purposes of its analyses and opinion. Houlihan Lokey expressed no view or opinion with respect to the Forecasts or the assumptions on which they were based. Houlihan Lokey relied upon and assumed, without independent verification, that there had been no change in the business, assets, liabilities, financial condition, results of operations, cash flows or prospects of the Company since the respective dates of the most recent financial statements and other information, financial or otherwise, provided to Houlihan Lokey that would have been material to its analyses or opinion, and that there was no information or any facts that would make any of the information reviewed by Houlihan Lokey incomplete or misleading.

Houlihan Lokey relied upon and assumed, without independent verification, that (1) the representations and warranties of all parties to the Merger Agreement and all other related documents and instruments referred to therein were true and correct, (2) each party to the Merger Agreement and such other related documents and instruments would fully and timely perform all of the covenants and agreements required to be performed by such party, (3) all conditions to the consummation of the Merger would be satisfied without waiver thereof, and (4) the Merger would be consummated in a timely manner in accordance with the terms described in the Merger Agreement and such other related documents and instruments, without any amendments or modifications thereto. Houlihan Lokey relied upon and assumed, without independent verification, that (A) the Merger would be consummated in a manner that complies in all respects with all applicable foreign, federal, state and local statutes, rules and regulations, and (B) all governmental, regulatory, and other consents and approvals necessary for the consummation of the Merger would be obtained, and that no delay, limitations, restrictions or conditions would be imposed or amendments, modifications or waivers made that would have an effect on the Company or the Merger that would be material to Houlihan Lokey’s analyses or opinion. In addition, Houlihan Lokey relied upon and assumed, without independent verification, that the final form of the Merger Agreement would not differ in any respect from the draft of the Merger Agreement identified above.

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Furthermore, in connection with its opinion, Houlihan Lokey was not requested to, and did not, make any physical inspection or independent appraisal or evaluation of any of the assets, properties or liabilities (fixed, contingent, derivative, off-balance-sheet or otherwise) of the Company or any other party, nor was Houlihan Lokey provided with any such appraisal or evaluation. Houlihan Lokey did not estimate, and expressed no opinion regarding, the liquidation value of any entity or business. Houlihan Lokey did not undertake any independent analysis of any potential or actual litigation, regulatory action, possible unasserted claims or other contingent liabilities to which the Company was or may have been a party or was or may have been subject, or of any governmental investigation of any possible unasserted claims or other contingent liabilities to which the Company was or may have been a party or was or may have been subject.

Houlihan Lokey was not requested to, and did not, (1) initiate any discussions with, or solicit any indications of interest from, third parties with respect to the Merger, the securities, assets, businesses or operations of the Company or any other party, or any alternatives to the Merger, (2) negotiate the terms of the Merger, (3) advise the Board, the Company or any other party with respect to alternatives to the Merger, or (4) identify, introduce to the Company or any other party, or screen for creditworthiness, any prospective investors, lenders or other participants in the Merger. Houlihan Lokey’s opinion was necessarily based on financial, economic, market and other conditions as in effect on, and the information made available to Houlihan Lokey as of, the date of its opinion. Houlihan Lokey did not undertake, and was under no obligation, to update, revise, reaffirm or withdraw its opinion, or otherwise comment on or consider events occurring or coming to Houlihan Lokey’s attention after the date of its opinion. Houlihan Lokey did not express any view or opinion as to the price or range of prices at which shares of Company Common Stock could be purchased or sold, or otherwise be transferable, at any time.

Houlihan Lokey’s opinion was furnished for the use of the Board (in its capacity as such) in connection with its evaluation of the Merger and may not be used for any other purpose without Houlihan Lokey’s prior written consent. Houlihan Lokey’s opinion was not intended to be, and did not constitute, a recommendation to the Board, the Company, any security holder or any other party as to how to act or vote with respect to any matter relating to the Merger or otherwise.

Houlihan Lokey was not requested to opine as to, and its opinion did not express an opinion as to or otherwise address, among other things: (1) the underlying business decision of the Board, the Company, its security holders or any other party to proceed with or effect the Merger, (2) the terms of any arrangements, understandings, agreements or documents related to, or the form, structure or any other portion or aspect of, the Merger or otherwise (other than the Merger Consideration to the extent expressly specified in its opinion), including, without limitation, (A) the issuance to Global Infrastructure Management, LLC, or one of its affiliates, of one share of Company Common Stock prior to the Merger, (B) the interim financing contemplated by Section 6.18 of the Merger Agreement, (C) the proposed refinancing of the Company’s 2025 Notes due September 10, 2025, (D) the equity commitment agreements that were to be entered into between Parent and the Sponsors and (E) the guaranties that were to be executed by each of the Sponsors in favor of the Company, (3) the fairness of any portion or aspect of the Merger to the holders of any class of securities, creditors or other constituencies of the Company, or to any other party, except if and only to the extent expressly set forth in the last sentence of its opinion, (4) the relative merits of the Merger as compared to any alternative business strategies or transactions that might have been available for the Company or any other party, (5) the fairness of any portion or aspect of the Merger to any one class or group of the Company’s or any other party’s security holders or other constituents vis-à-vis any other class or group of the Company’s or such other party’s security holders or other constituents (including, without limitation, the allocation of any consideration amongst or within such classes or groups of security holders or other constituents), (6) whether or not the Company, Parent, their respective security holders or any other party is receiving or paying reasonably equivalent value in the Merger, (7) the solvency, creditworthiness or fair value of the Company, Parent or any other participant in the Merger, or any of their respective assets, under any applicable laws relating to bankruptcy, insolvency, fraudulent conveyance or similar matters, or (8) the fairness, financial or otherwise, of the amount, nature or any other aspect of any compensation to or consideration payable to or received by any officers, directors or employees of any party to the Merger, any class of such persons or any other party, relative to the Merger Consideration or otherwise. Houlihan Lokey did not express any opinion, counsel or interpretation regarding matters that require legal, regulatory, accounting, insurance, tax or other similar professional advice. Houlihan Lokey assumed that such opinions, counsel or interpretations had been or would be obtained from the appropriate professional sources. Furthermore, Houlihan Lokey relied, with the consent of the Board, on the assessments by the Board, the Company, Parent and their respective advisors, as to all legal, regulatory, accounting, insurance, tax and other similar matters with respect to the Company, the Merger or otherwise.

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In performing its analyses, Houlihan Lokey considered general business, economic, industry and market conditions, financial and otherwise, and other matters as they existed on, and could be evaluated as of, the date of its opinion. No company, transaction or business used in Houlihan Lokey’s analyses for comparative purposes is identical to the Company or the Merger and an evaluation of the results of those analyses is not entirely mathematical. As a consequence, mathematical derivations (such as the high, low, mean and median) of financial data are not by themselves meaningful and in selecting the ranges of multiples to be applied were considered in conjunction with experience and the exercise of judgment. The estimates contained in the Forecasts and the implied reference range values indicated by Houlihan Lokey’s analyses are not necessarily indicative of actual values or predictive of future results or values, which may be significantly more or less favorable than those suggested by the analyses. In addition, any analyses relating to the value of assets, businesses or securities do not purport to be appraisals or to reflect the prices at which businesses or securities actually may be sold, which may depend on a variety of factors, many of which are beyond the control of the Company. Much of the information used in, and accordingly the results of, Houlihan Lokey’s analyses are inherently subject to substantial uncertainty.

Houlihan Lokey’s opinion was only one of many factors considered by the Board in evaluating the proposed Merger. Neither Houlihan Lokey’s opinion nor its analyses were determinative of the Merger Consideration or of the views of the Board or management with respect to the Merger or the Merger Consideration. Under the terms of its engagement by the Company, neither Houlihan Lokey’s opinion nor any other advice or services rendered by it in connection with the proposed Merger or otherwise, should be construed as creating, and Houlihan Lokey should not be deemed to have, any fiduciary duty to, or agency relationships with, the Board, the Company, Parent, any security holder or creditor of the Company or Parent or any other person, regardless of any prior or ongoing advice or relationships. The type and amount of consideration payable in the Merger were determined through negotiation between the Company and Parent, and the decision to enter into the Merger Agreement was solely that of the Board.

Financial Analyses

In preparing its opinion to the Board, Houlihan Lokey performed a variety of analyses, including those described below. The summary of Houlihan Lokey’s analyses is not a complete description of the analyses underlying Houlihan Lokey’s opinion. The preparation of such an opinion is a complex process involving various quantitative and qualitative judgments and determinations with respect to the financial, comparative and other analytical methods employed and the adaptation and application of these methods to the unique facts and circumstances presented. As a consequence, neither Houlihan Lokey’s opinion nor its underlying analyses are readily susceptible to summary description. Houlihan Lokey arrived at its opinion based on the results of all analyses undertaken by it and assessed as a whole and did not draw, in isolation, conclusions from or with regard to any individual analysis, methodology or factor. While the results of each analysis were taken into account in reaching Houlihan Lokey’s overall conclusion with respect to fairness, Houlihan Lokey did not make separate or quantifiable judgments regarding individual analyses. Accordingly, Houlihan Lokey believes that its analyses and the following summary must be considered as a whole and that selecting portions of its analyses, methodologies and factors, without considering all analyses, methodologies and factors, could create a misleading or incomplete view of the processes underlying Houlihan Lokey’s analyses and opinion.

The following is a summary of the material financial analyses performed by Houlihan Lokey in connection with the preparation of its opinion and reviewed with the Board on May 5, 2024. The order of the analyses does not represent relative importance or weight given to those analyses by Houlihan Lokey. The analyses summarized below include information presented in tabular format. The tables alone do not constitute a complete description of the analyses. Considering the data in the tables below without considering the full narrative description of the analyses, as well as the methodologies underlying, and the assumptions, qualifications and limitations affecting, each analysis, could create a misleading or incomplete view of Houlihan Lokey’s analyses.

For purposes of its analyses, Houlihan Lokey reviewed a number of financial metrics, including the following:

•	EBITDA — generally, the amount of the relevant company’s earnings before interest, taxes, depreciation and amortization for a specified time period.

•	Enterprise Value — generally, the value as of a specified date of the relevant company’s outstanding equity securities (taking into account outstanding dilutive options and other securities convertible, exercisable or

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exchangeable into or for equity securities of the company) plus the amount of its net debt (the amount of its outstanding indebtedness, net unfunded pension and post-retirement benefit obligations, preferred stock, capital lease obligations and non-controlling interests less the amount of cash and cash equivalents on its balance sheet).

•	Net Income Attributable to the Company — refers to the Company’s net income, adjusted for losses attributable to non-controlling interests.

Unless the context indicates otherwise, enterprise values and equity values used in the selected companies analysis described below were calculated using the closing price of the Company Common Stock and the common stock of the selected companies listed below as of May 3, 2024, and transaction values for the selected transactions analysis described below were calculated on an enterprise value basis based on the announced transaction equity price and other public information available at the time of the announcement. The estimates of the future financial performance of the Company relied upon for the financial analyses described below were based on the Forecasts. The estimates of the future financial performance of the selected companies listed below were based on certain publicly available research analyst estimates for those companies.

Selected Companies Analysis. Houlihan Lokey reviewed certain data for the selected companies, with publicly traded equity securities, that Houlihan Lokey deemed relevant.

The financial data reviewed included:

•	Enterprise value as a multiple of estimated EBITDA for the calendar year ending December 31, 2024, or “CY 2024E EBITDA”;

•	Enterprise value as a multiple of estimated EBITDA for the calendar year ending December 31, 2025, or “CY 2025E EBITDA”;

•	Share price as a multiple of estimated earnings for the calendar year ending December 31, 2024, or “CY 2024E Earnings”; and

•	Share price as a multiple of estimated earnings for the calendar year ending December 31, 2025, or “CY 2025E Earnings.”

The selected companies and resulting low, high, median and mean financial data, included the following:

•	Avista Corporation

•	Black Hills Corporation

•	IDACORP, Inc.

•	MGE Energy, Inc.

•	NorthWestern Energy Group, Inc.

•	OGE Energy Corp.

•	Otter Tail Corporation

•	Pinnacle West Capital Corporation

•	PNM Resources, Inc.

•	Portland General Electric Company

Low

8.7x

7.9x

13.9x

12.7x

High

13.9x

12.8x

21.6x

20.9x

Median

10.5x

9.7x

15.5x

14.3x

Mean

10.9x

10.1x

16.0x

15.2x

Taking into account the results of the selected companies analysis, Houlihan Lokey applied selected multiple ranges of 11.0x to 12.0x to the Company’s estimated EBITDA for the calendar year ending December 31, 2024, 9.5x

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to 10.5x to the Company’s estimated EBITDA for the calendar year ending December 31, 2025, 13.5x to 16.5x to the Company’s estimated net income attributable to the Company for the calendar year ending December 31, 2024, and 11.5x to 14.5x to the Company’s estimated net income attributable to the Company for the calendar year ending December 31, 2025. The selected companies analysis indicated implied per share value reference ranges of $49.98 to $57.99 per share of Company Common Stock based on the selected range of multiples of the Company’s estimated EBITDA for the calendar year ending December 31, 2024, $52.20 to $61.71 per share of Company Common Stock based on the selected range of multiples of the Company’s estimated EBITDA for the calendar year ending December 31, 2025, $50.12 to $61.26 per share of Company Common Stock based on the selected range of multiples of the Company’s estimated net income attributable to the Company for the calendar year ending December 31, 2024, and $52.06 to $65.64 per share of Company Common Stock based on the selected range of multiples of the Company’s estimated net income attributable to the Company for the calendar year ending December 31, 2025, in each case as compared to the Merger Consideration of $67.00 per share of Company Common Stock in the Merger pursuant to the Merger Agreement.

Selected Transactions Analysis. Houlihan Lokey considered certain financial terms of certain transactions involving target companies that Houlihan Lokey deemed relevant. The financial data reviewed included transaction value as a multiple of latest 12 months, or “LTM,” EBITDA, and the selected transactions and resulting low, high, median and mean financial data were:

Date Announced	Target	Acquiror
2/20/2024	Louisiana and Mississippi Natural Gas Assets of CenterPoint Energy, Inc.	Bernhard Capital Partners
9/5/2023	Dominion Energy Gas Distribution Companies	Enbridge Inc.
2/24/2022	South Jersey Industries, Inc.	Infrastructure Investments Fund
3/18/2021	Narragansett Electric Company (nka: The Narragansett Electric Company)	PPL Corporation
6/3/2019	El Paso Electric Company	Infrastructure Investments Fund
10/18/2018	InfraREIT, Inc. (REIT) (nka: InfraREIT, Inc.)	Oncor Electric Delivery Company LLC
5/21/2018	Gulf Power Company	NextEra Energy, Inc.
4/23/2018	Vectren Corporation (nka: Vectren, LLC)	CenterPoint Energy, Inc.

			Transaction Value / LTM EBITDA
Low			8.5x
High			15.9x
Median			12.7x
Mean			12.6x

Taking into account the results of the selected transactions analysis, Houlihan Lokey applied a selected multiple range of 12.0x to 13.0x to the Company’s LTM EBITDA. The selected transactions analysis indicated an implied per share value reference range of $59.29 to $67.40 per share of Company Common Stock, as compared to the Merger Consideration of $67.00 per share of Company Common Stock in the Merger pursuant to the Merger Agreement.

Discounted Cash Flow Analysis. Houlihan Lokey performed a discounted cash flow analysis of the Company by calculating the estimated net present value of the projected levered, after-tax free cash flows of the Company based on the Forecasts. Houlihan Lokey applied a range of terminal value multiples of 10.0x to 11.0x to the Company’s estimated EBITDA for the calendar year ending December 31, 2042 and discount rates ranging from 10.0% to 11.0%. The discounted cash flow analysis indicated an implied per share value reference range of $54.12 to $68.28 per share of Company Common Stock, as compared to the Merger Consideration of $67.00 per share of Company Common Stock in the Merger pursuant to the Merger Agreement.

Sum-of-the-Parts Analysis. Houlihan Lokey performed a sum-of-the-parts analysis of the Company by evaluating the Company’s utility operations segment, renewable platform segment, and BNI Energy & other segment as separate standalone entities, which were then summed together.

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With respect to the Company’s utility operations segment, Houlihan Lokey took into account the results of the selected companies and selected transactions analyses described above, and applied selected multiple ranges of 14.5x to 17.5x to the estimated net income attributable to the Company resulting from the Company’s utility operations segment for the calendar year ending December 31, 2024, and 13.5x to 16.5x to the estimated net income attributable to the Company resulting from the Company’s utility operations segment for the calendar year ending December 31, 2025. With respect to the Company’s renewables platform segment, Houlihan Lokey performed a discounted cash flow analysis by calculating the estimated net present value of the projected levered, after-tax free cash flows attributable to the Company’s renewables platform segment based on the Forecasts. Houlihan Lokey applied a range of terminal value multiples of 8.0x to 10.0x to the estimated EBITDA for the calendar year ending December 31, 2042 attributable to the renewable platform segment and discount rates ranging from 11.0% to 13.0%. With respect to the Company’s BNI Energy & other segment, Houlihan Lokey took into account the book value of BNI Energy of $80 million and the book value of the Company’s legacy Florida real estate investment of $11 million, each as provided by Company management. The sum-of-the-parts analysis indicated an implied per share value reference range of $51.74 to $63.62 per share of Company Common Stock, as compared to the Merger Consideration of $67.00 per share of Company Common Stock in the Merger pursuant to the Merger Agreement.

Miscellaneous

Houlihan Lokey was engaged by the Company to provide an opinion to the Board as to the fairness, from a financial point of view, to the holders of Company Common Stock of the Merger Consideration to be received by such holders in the Merger pursuant to the Merger Agreement. The Company engaged Houlihan Lokey based on Houlihan Lokey’s experience and reputation. Houlihan Lokey is regularly engaged to render financial opinions in connection with mergers, acquisitions, divestitures, leveraged buyouts, and for other purposes. Pursuant to its engagement by the Company, Houlihan Lokey became entitled to an aggregate fee of $2,500,000 for its services, a portion of which became payable to Houlihan Lokey upon its retention by the Company and the remainder of which became payable upon the delivery of Houlihan Lokey’s opinion to the Board. No portion of Houlihan Lokey’s fee is contingent upon the successful completion of the Merger. The Company has also agreed to reimburse Houlihan Lokey for certain expenses and to indemnify Houlihan Lokey, its affiliates and certain related parties against certain liabilities and expenses, including certain liabilities under the federal securities laws, arising out of or related to Houlihan Lokey’s engagement.

In the ordinary course of business, certain of Houlihan Lokey’s employees and affiliates, as well as investment funds in which they may have financial interests or with which they may co-invest, may acquire, hold or sell long or short positions, or trade, in debt, equity, and other securities and financial instruments (including loans and other obligations) of, or investments in, the Company, Parent or any other party that may be involved in the Merger and their respective affiliates or security holders or any currency or commodity that may be involved in the Merger.

Houlihan Lokey and/or certain of its affiliates have in the past provided investment banking, financial advisory and/or other financial or consulting services to GIP, or one or more security holders or affiliates of, and/or portfolio companies of investment funds affiliated or associated with, GIP (collectively, with GIP, the “GIP Group”), for which Houlihan Lokey and its affiliates received compensation. Based on a review of its information management systems, Houlihan Lokey identified engagements with the GIP Group during the two years prior to the date of its opinion for which Houlihan Lokey and/or its affiliates received aggregate compensation of approximately $13 million, including, among other things, having acted as financial advisor to Yunneng Wind Power Co., Ltd., a member of the GIP Group, in connection with a restructuring transaction, which was completed in October 2023. In addition, Houlihan Lokey and/or certain of its affiliates have in the past provided investment banking, financial advisory and/or other financial or consulting services to the Company, CPP Investments, or one or more security holders or affiliates of, and/or portfolio companies of investment funds affiliated or associated with CPP Investments (collectively, with CPP Investments the “CPP Investments Group”), and CalPERS. Houlihan Lokey and certain of its affiliates may provide investment banking, financial advisory and/or other financial or consulting services to the Company, members of the CPP Investments Group, members of the GIP Group, CalPERS, other participants in the Merger or certain of their respective affiliates or security holders in the future, for which Houlihan Lokey and its affiliates may receive compensation. In addition, Houlihan Lokey and certain of its affiliates and certain of Houlihan Lokey and their respective employees may have committed to invest in private equity or other investment funds managed or advised by CPP Investments Group, GIP Group, CalPERS, other participants in the Merger or certain of their respective affiliates or security holders, and in portfolio companies of such funds, and may have co-invested with the members of the CPP Investments Group, members of the GIP Group, CalPERS, other participants in the

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Merger or certain of their respective affiliates or security holders, and may do so in the future. Furthermore, in connection with bankruptcies, restructurings, distressed situations and similar matters, Houlihan Lokey and certain of its affiliates may have in the past acted, may currently be acting and may in the future act as financial advisor to debtors, creditors, equity holders, trustees, agents and other interested parties (including, without limitation, formal and informal committees or groups of creditors) that may have included or represented and may include or represent, directly or indirectly, or may be or have been adverse to, the Company, members of the CPP Investments Group, members of the GIP Group, CalPERS, other participants in the Merger or certain of their respective affiliates or security holders, for which advice and services Houlihan Lokey and its affiliates have received and may receive compensation.

Forward-Looking Financial Information

Other than providing estimated ranges of expected earnings and earnings growth as disclosed in regular press releases and investor materials, the Company does not as a matter of course disclose public forward-looking financial information as to future revenues, earnings, or other results due to, among other reasons, the uncertainty, unpredictability and subjectivity of the underlying assumptions and estimates. The Company is especially reluctant to disclose forward-looking financial information for extended periods due to the increasing uncertainty, unpredictability and subjectivity of such assumptions and estimates when applied to time periods further in the future. As a result, the Company does not endorse unaudited forward-looking financial information as a reliable indication of future results. However, for internal purposes and in connection with the process leading to the execution of the Merger Agreement, management of the Company prepared certain forward-looking financial information for the years 2024 through 2042 to account for the long-term nature of the Company’s growth strategy and capital expenditure plan. Such forward-looking financial information is included in this proxy statement because we provided such information to our financial advisors, the Board and to Parent in connection with the Merger Agreement discussions. The following forward-looking financial information was not prepared with a view toward compliance with published guidelines of the SEC or with a view toward complying with the guidelines established by the American Institute of Certified Public Accountants with respect to forward-looking financial information, but, in the view of management of the Company, was prepared on a reasonable basis, reflected the best then-currently available estimates and judgments at the time of its preparation, and presented at the time of its preparation, to the best of management’s knowledge and belief, the expected course of action and the expected future financial performance of the Company. The inclusion of this forward-looking financial information should not be regarded as an indication that any of the Company, Parent, their respective affiliates, officers, directors, advisors or other representatives or any other recipient of such information considered, or now considers, it to be necessarily predictive of actual future performance or events, or that it should be construed as financial guidance, and such forward-looking financial information set forth below should not be relied on as such. Readers of this proxy statement are cautioned not to place undue reliance on the forward-looking financial information.

The forward-looking financial information included in this document has been prepared by, and is the responsibility of, the Company’s management. Our independent auditors, nor any other independent accountants, have not audited, reviewed, examined, compiled nor applied agreed-upon procedures with respect to the accompanying forward-looking financial information and, accordingly, our independent auditors do not express an opinion or any other form of assurance with respect thereto. The PricewaterhouseCoopers LLP report incorporated by reference into this document relates to the Company’s previously issued financial statements. It does not extend to the forward-looking financial information and should not be read to do so.

The following table sets forth a summary of the forward-looking information we provided to Parent and our financial advisors in connection with the process leading to the execution of the Merger Agreement.

	Year Ended December 31,
	2024	2025	2026	2027	2028	2029	2030	2031	2032	2033
	(in millions, except earnings per share)
Revenues	$1,602	$1,685	$1,759	$1,952	$2,069	$2,268	$2,390	$2,513	$2,654	$2,864
EBITDA	$463	$550	$643	$750	$819	$932	$980	$1,026	$1,157	$1,296
Net Income Attributable to the Company	$215	$262	$348	$403	$431	$449	$439	$470	$555	$600
Earnings Per Share	$3.71	$4.01	$5.05	$5.75	$6.02	$6.15	$5.99	$6.25	$7.14	$7.62
Cash Capital Expenditures	$355	$1,692	$1,203	$1,123	$1,228	$1,190	$999	$1,426	$1,157	$991

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	Year Ended December 31,
	2034	2035	2036	2037	2038	2039	2040	2041	2042
	(in millions, except earnings per share)
Revenues	$2,938	$3,039	$3,163	$3,237	$3,346	$3,486	$3,608	$3,762	$3,874
EBITDA	$1,348	$1,415	$1,495	$1,539	$1,611	$1,694	$1,782	$1,845	$1,915
Net Income Attributable to the Company	$622	$626	$679	$675	$710	$731	$736	$725	$730
Earnings Per Share	$7.86	$8.00	$8.89	$8.86	$9.23	$9.49	$9.75	$9.95	$10.35
Cash Capital Expenditures	$990	$688	$777	$1,135	$1,524	$952	$738	$701	$753

The forward-looking financial information is based on various assumptions, including, but not limited to, the following principal assumptions:

•	normal weather as it relates to the Company’s operations, based on historical trends including heating and cooling degree days, wind and other renewable energy production;

•	taconite production of approximately 35 million tons on an annual basis, which is consistent with long-term historical averages, and nominal annual growth in other industrial, commercial, residential and wholesale utility sales;

•	no significant changes in legislative framework;

•	no significant changes in regulatory framework or adverse regulatory outcomes, including assumptions relating to the expected results from rate cases or cost recovery riders in Minnesota and Wisconsin;

•	capital expenditures related to the Company’s clean energy transition plans and high kilovolt (kV) transmission expansion, including the Company’s ability to procure necessary materials, complete projects in a timely manner and receive regulatory approvals;

•	continued annual investment and execution on projects relating to the Company’s renewable energy businesses; and

•	key assumptions relating to operation and maintenance, finance and tax, including:

•	annual inflationary escalation of approximately 3%;

•	long-term interest rates of approximately 5.5% on incremental debt financing;

•	financing the Company with a capital structure that maintains an investment grade rating; and

•	no changes to tax rates or tax policy, including the Company’s ability to generate and monetize tax credits.

The estimates and assumptions underlying the forward-looking financial information are inherently uncertain and, though considered reasonable by the management of the Company as of the date of the preparation of such forward-looking financial information, are subject to a wide variety of significant business, economic, regulatory and competitive risks and uncertainties that could cause actual results to differ materially from those contained in the forward-looking financial information, including, among other things, the matters described in the section entitled “Cautionary Statement Regarding Forward-Looking Statements” beginning on page 11. The forward-looking financial information covers multiple years, and such information by its nature becomes less predictive with each successive year. Accordingly, there can be no assurance that the forward-looking results are indicative of the future performance of the Company, or that actual results will not differ materially from those presented in the forward-looking financial information. Inclusion of the forward-looking financial information in this proxy statement should not be regarded as a representation by any person that the results contained in the forward-looking financial information will be achieved.

The forward-looking financial information does not take into account any circumstances or events occurring after the date it was prepared, including the announcement of the Merger. We have not updated or otherwise revised, and do not intend to update or otherwise revise, the forward-looking financial information to reflect circumstances existing since the preparation of such information or to reflect the occurrence of unanticipated events, including in the event that any or all of the underlying assumptions are shown to be in error, unless required by applicable law.

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Further, the forward-looking information does not take into account the effect of any possible failure of the Merger to occur. Furthermore, we do not intend to update or revise the forward-looking financial information in this proxy statement to reflect changes in general economic or industry conditions.

The information concerning forward-looking financial information provided by us is not included in this proxy statement in order to induce any shareholder to vote in favor of the proposals at the Special Meeting or to acquire securities of the Company.

Certain U.S. Federal Income Tax Considerations of the Merger

The following discussion summarizes certain U.S. federal income tax considerations generally applicable to U.S. Holders and Non-U.S. Holders (each as defined below) whose shares are exchanged for cash pursuant to the Merger. This discussion applies only to holders of shares of Company Common Stock who hold such shares as a capital asset within the meaning of Section 1221 of the Internal Revenue Code of 1986, as amended (the “Code”) (generally, an asset held for investment). This summary is based on the Code, the U.S. Treasury Department regulations promulgated under the Code (“Treasury Regulations”), and administrative rulings and court decisions in effect as of the date of this proxy statement, all of which are subject to change at any time, possibly with retroactive effect. Any such changes could affect the accuracy of the statements and conclusions set forth herein. For purposes of this discussion, the term “U.S. Holder” means a beneficial owner of Company Common Stock that is, for U.S. federal income tax purposes, (1) a citizen or an individual who is a resident of the United States, (2) a corporation (or other entity treated as a corporation for U.S. federal income tax purposes) created or organized under the laws of the United States, any state thereof, or the District of Columbia, (3) an estate, the income of which is includible in gross income for U.S. federal income tax purposes regardless of its source or (4) a trust if (A) a court within the United States is able to exercise primary supervision over the administration of the trust and one or more U.S. persons have the authority to control all substantial decisions of the trust or (B) the trust has a valid election in effect under applicable Treasury Regulations to be treated as a U.S. person for U.S. federal income tax purposes. For purposes of this discussion, the term “Non-U.S. Holder” means a beneficial owner of shares of Company Common Stock that is neither a U.S. Holder nor a partnership (or any entity or arrangement treated as a partnership for U.S. federal income tax purposes).This discussion is not binding on the Internal Revenue Service (“IRS”) or a court, and there can be no assurance that the tax consequences described in this summary will not be challenged by the IRS or that they would be sustained by a court if so challenged. No ruling has been or will be sought from the IRS, and no opinion of counsel has been or will be rendered as to the U.S. federal income tax consequences of the Merger. This discussion is not a complete description of all the U.S. federal income tax considerations relating to the Merger and, in particular, may not address U.S. federal income tax considerations applicable to holders of Company Common Stock who are subject to special treatment under U.S. federal income tax law, including, for example, partnerships (or an entity or arrangement treated as a partnership for U.S. federal income tax purposes) and partners therein, S corporations, “controlled foreign corporations” or “passive foreign investment companies,” financial institutions, brokers or dealers in securities, insurance companies, tax-exempt entities (including private foundations), mutual funds, real estate investment trusts, personal holding companies, regulated investment companies, securities or currency dealers, traders in securities who elect to use the mark-to-market method of accounting, tax-exempt investors, holders whose functional currency is not the U.S. dollar, tax-deferred or other retirement accounts, U.S. expatriates, former citizens or long-term residents of the United States, holders who acquired Company Common Stock pursuant to the exercise of an employee stock option or right or otherwise as compensation, holders who exercise appraisal rights in connection with the Merger, holders who hold Company Common Stock as part of a hedge, straddle, constructive sale, conversion transaction, or other integrated investment, holders subject to the alternative minimum tax, accrual method holders who prepare an “applicable financial statement” (as defined in Section 451 of the Code), and holders who hold or have held, directly or pursuant to attribution rules, more than 5% of the outstanding shares of Company Common Stock at any time during the five-year period ending on the date of the consummation of the Merger. In addition, no information is provided with respect to the tax considerations of the Merger under any U.S. federal law other than income tax laws (including, for example, the U.S. federal estate, gift, Medicare, and alternative minimum tax laws), or any state, local or non-U.S. tax laws that may be applicable to a holder. This summary does not address the tax considerations of any transaction other than the Merger.

If an entity or arrangement treated as a partnership for U.S. federal income tax purposes holds Company Common Stock, the tax treatment of a partner in such a partnership generally will depend on the status of the partner and the activities of the partnership. Any entity or arrangement treated as a partnership for U.S. federal income tax purposes that holds Company Common Stock, and any partners in such partnership, should consult their tax advisor regarding the tax consequences of the Merger to them in their specific circumstances.

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This summary contains a general discussion of U.S. federal income tax considerations relating to the Merger. No information is provided with respect to the tax consequences of the Merger under any U.S. federal law other than income tax laws (including, for example the U.S. federal estate, gift, Medicare and alternative minimum tax laws), or any applicable state, local or non-U.S. tax laws. Consequently, holders of Company Common Stock should consult their tax advisor as to the tax consequences of the Merger relevant to their particular circumstances, including the applicability and effect of any state, local, non-U.S. or other tax laws and of changes in those laws.

U.S. Holders

The receipt of cash by a U.S. Holder in exchange for shares of Company Common Stock pursuant to the Merger will generally be a taxable transaction for U.S. federal income tax purposes. In general, for U.S. federal income tax purposes, a U.S. Holder who receives cash in exchange for shares of Company Common Stock pursuant to the Merger will recognize gain or loss in an amount equal to the difference, if any, between (1) the amount of cash received in the Merger and (2) the U.S. Holder’s adjusted tax basis in its Company Common Stock exchanged therefor. Generally, such gain or loss will be capital gain or loss and will be long-term capital gain or loss if the shares of Company Common Stock exchanged were held for more than one year as of the date of exchange. Long-term capital gains of certain non-corporate U.S. Holders generally are subject to U.S. federal income tax at preferential rates. The deductibility of capital losses is subject to certain limitations. If a U.S. Holder acquired different blocks of Company Common Stock at different times or different prices, such U.S. Holder must determine its adjusted tax basis and holding period separately with respect to each block of Company Common Stock (i.e., shares of common stock acquired for the same cost in the same transaction) exchanged for cash pursuant to the Merger.

Non-U.S. Holders

In general, any gain realized by a Non-U.S. Holder pursuant to the Merger generally will not be subject to U.S. federal income tax unless (1) the gain is effectively connected with the conduct of a trade or business of such Non-U.S. Holder in the United States (and, if required by an applicable income tax treaty, is attributable to a permanent establishment maintained by such Non-U.S. Holder in the United States), in which case such gain generally will be subject to U.S. federal income tax on a net basis at the rates generally applicable to U.S. persons, and, if the Non-U.S. Holder is a corporation, such gain may also be subject to the branch profits tax at a rate of 30% (or a lower rate under an applicable income tax treaty) or (2) such Non-U.S. Holder is an individual who is present in the United States for 183 days or more in the taxable year in which the Merger is consummated, and certain other specified conditions are met, in which case such gain will be subject to U.S. federal income tax at a rate of 30% (or a lower rate under an applicable income tax treaty), net of applicable U.S.-source capital losses recognized by such Non-U.S. Holder.

Non-U.S. Holders should consult their tax advisor as to any applicable tax treaties that might provide for different rules.

The foregoing summary does not discuss all aspects of U.S. federal income taxation that may be relevant to particular U.S. Holders or Non-U.S. Holders. Such U.S. Holders and Non-U.S. Holders should consult their tax advisor as to the particular tax consequences to them of the receipt of cash in exchange for their shares of Company Common Stock pursuant to the Merger under any U.S. federal, state, local, non-U.S. or other tax laws or under any applicable income tax treaty.

Regulatory Matters Relating to the Merger

To complete the Merger, the Company and Parent need to obtain approvals, orders, clearances or consents from, or make filings with, certain public utility, antitrust and other regulatory authorities. The Required Approvals are described below. It is a condition to Parent’s obligation to consummate the Merger that all Required Approvals be obtained on terms and conditions that do not result in a Burdensome Condition; provided that the terms, conditions, obligations, commitments and other measures set forth in the Merger Agreement shall not in and of themselves, individually or in the aggregate, constitute a Burdensome Condition; but, for the avoidance of doubt, each such term, condition, obligation, commitment and other measure set forth in the Merger Agreement shall be taken into account, together with any other terms, conditions, obligations, commitments, liabilities, undertakings, sanctions or other measures, in determining whether there has been or is a Burdensome Condition. For purposes of determining whether any term or condition has a Burdensome Condition on Parent and its affiliates, Parent and its affiliates are deemed to be a consolidated group of entities of the size and scale of the Company.

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•	making all necessary filings with governmental entities or third parties;

•	obtaining the required consents and all other third-party consents that are necessary, proper or advisable to consummate the Merger;

•	obtaining the Required Approvals, and all other consents of governmental entities that are necessary, proper or advisable to consummate the Merger and the other transactions contemplated thereby; and

•	executing and delivering any additional instruments that are necessary, proper or advisable to consummate the Merger and the other transactions contemplated by the Merger Agreement.

Under the terms of the Merger Agreement, Parent is prohibited from entering into, and must not knowingly cause its affiliates to enter into, (1) any transaction to acquire any asset, property, business or person (by way of merger, consolidation, share exchange, investment, other business combination, asset, stock or equity purchase, or otherwise) or (2) any new commercial activities or businesses unrelated to the transactions contemplated by the Merger Agreement in Minnesota or Wisconsin, in either case, that would reasonably be expected to materially increase the risk of (A) not obtaining any required approval, (B) not making any consent or filing required for the consummation of the Merger or (C) materially delaying the receipt of any approvals or the making of any consents or filings that are required for the consummation of the Merger. In addition, Parent is required to use its reasonable best efforts to avoid or eliminate each and every impediment that may be asserted by any governmental entity so as to enable the Merger to be consummated as soon as reasonably possible (provided that other than with respect to any restriction on information sharing, Parent will not be required to take any material action related to (i) any of its affiliates, (ii) any Sponsor or their respective direct or indirect portfolio companies owned, managed, advised or controlled by any of the Sponsors or any of their respective affiliates or (iii) any limited partner or other direct or indirect investors in any investment fund affiliated with, advised or managed by, any Sponsor or any of their respective affiliates). Furthermore, in no event will Parent, Merger Sub or any affiliate of Parent be required to pursue or defend any claim against CFIUS in connection with the transactions contemplated by the Merger Agreement, and neither the Company nor Parent nor any of our respective affiliates will be obligated to take any action that is not conditioned on the Closing.

While the Company and Parent each believe that they will receive the Required Approvals and other clearances for the Merger, there can be no assurance that all of these approvals will be obtained or, if obtained, that these approvals will not contain terms or conditions that could reasonably be expected to result in a Burdensome Condition. Based on the current status of the required governmental approval process, the parties expect, assuming all other conditions to completion of the Merger are satisfied, to complete the Merger in mid-2025. However, the Closing may not occur until after mid-2025, if at all.

We intend to submit the Merger Proposal, along with other proposals, to our shareholders at the Special Meeting as noted above in “Information About the Special Meeting and Voting” beginning on page 13. It is expected that we will not have obtained all Required Approvals by the date of such Special Meeting, which could delay or prevent completion of the Merger for a significant period of time after our shareholders have approved the Merger Proposal. Any delay in the completion of the Merger could diminish the anticipated benefits of the Merger or result in additional transaction costs, loss of revenue or other effects associated with uncertainty surrounding the Merger. In addition, it is possible that, among other things, a governmental agency could condition its required approval of the Merger upon the Company and Parent (or one of its affiliates) entering into an agreement to divest a portion of their combined businesses or assets or could restrict the operations of the combined businesses in accordance with specified business conduct rules. See the section entitled “Cautionary Statement Regarding Forward-Looking Statements” beginning on page 11. A governmental agency also could impose significant additional costs on the business of the surviving corporation, including requiring the surviving corporation to share a disproportionate amount of the expected or achieved benefits of the Merger with utility customers in a future rate case. Acceptance of any such conditions could diminish the benefits of the Merger to the surviving corporation and result in additional costs, loss of revenue or other effects. Alternatively, rejection of such conditions could result in the Company and Parent litigating with a governmental entity, which could delay the Merger or result in the Merger not being consummated.

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No additional shareholder approval is expected to be required for any decision by us after the Special Meeting is held relating to any terms and conditions necessary to resolve any regulatory objections to the Merger and, possibly, to proceed with consummation of the Merger.

As more fully described in “The Merger Agreement—Termination; Termination Fees; Expenses” beginning on page 88, the Merger Agreement may be terminated by us or Parent if the Merger is not consummated by 5:00 p.m. Eastern Daylight Time on August 5, 2025; provided, however, that if the conditions to Closing relating to the Required Approvals have not been satisfied, but all other conditions to Closing have been satisfied or waived (or are capable of being satisfied at Closing), such date shall automatically be extended for up to two successive three-month periods. A party may not terminate the Merger Agreement as set forth above if that party’s failure to fulfill its obligations under the Merger Agreement has caused or resulted in the failure to consummate the Merger.

Antitrust and HSR Act Matters

The FTC and the DOJ frequently scrutinize the legality under the antitrust laws of transactions such as the Merger. The HSR Act, and the rules and regulations promulgated thereunder, provide that certain transactions, including the Merger, may not be consummated until required information and materials have been filed with the DOJ and the FTC and the applicable waiting period has expired or been terminated. The HSR Act requires the parties to observe a 30 calendar-day waiting period after the submission of their HSR filings before consummating the Merger, or, alternatively, after the parties have substantially complied with any Request for Additional Information and Documentary Material issued by the DOJ or the FTC to us or Parent or the appropriate entity as designated by the HSR Act, in either case unless the waiting period is terminated early by the DOJ and FTC. We and Parent expect to submit such filings with the FTC and DOJ later this year.

At any time before or after the Merger, the DOJ or the FTC could take such action under antitrust laws as it deems necessary or desirable in the public interest, including seeking to enjoin the Merger or seeking divestiture of substantial assets of the Company, Parent or its subsidiaries. Private parties and state attorneys general may also bring an action under antitrust laws under certain circumstances. There can be no assurance that a challenge to the Merger on antitrust grounds will not be made or, if such a challenge is made, of the result of such challenge.

Non-U.S. Competition Matters

Consummation of the transactions contemplated by the Merger Agreement, including the Merger, is subject to receive of certain non-U.S. consents, approvals or other clearances, consisting of the receipt of: (i) a decision by the EC pursuant to the EC Merger Regulation declaring the transactions contemplated by the Merger Agreement are compatible with the common market (or compatibility being deemed under Article 10(6) of the EC Merger Regulation); (ii) approval by the Chinese SAMR pursuant to the Chinese Anti-Monopoly Law; and (iii) approval by the Turkish Competition Authority pursuant to Communiqué No. 2010/4 on Mergers and Acquisitions.

Federal Energy Regulatory Commission

The Company and Superior Water, Light and Power Company, one of our subsidiaries, are public utilities subject to the jurisdiction of the FERC under Part II of the FPA. Section 203 of the FPA requires prior FERC authorization for any direct or indirect merger or consolidation of a public utility’s facilities with those of any other person. Consequently, the Merger requires prior authorization by the FERC pursuant to Section 203 of the FPA. The Company and Parent expect to jointly apply for FERC authorization in July 2024.

The FERC must authorize the Merger if it finds that the Merger is consistent with the public interest and will not result in the cross-subsidization of a non-utility associate company or the pledge or encumbrance of utility assets for the benefit of an associate company (unless it finds that such cross-subsidization or pledge or encumbrance will be consistent with the public interest). The FERC has further stated that, in analyzing a merger or transaction under Section 203 of the FPA, it will evaluate the impact of the proposed merger on:

•	competition in wholesale electric power markets;

•	the applicant’s wholesale power and transmission rates; and

•	state and federal regulation of the applicant.

The FERC will review these factors to determine whether the Merger is consistent with the public interest. If the FERC finds that the Merger would adversely affect competition in wholesale electric power markets, rates for

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electric transmission or the wholesale sale of electric energy, or regulation, or that the Merger would result in cross-subsidization or pledges or encumbrances that are not consistent with the public interest, it may, pursuant to the FPA, condition its approval in such a manner as necessary to mitigate such adverse effects, or it may decline to approve the Merger. The FERC is required to rule on a merger application not later than 180 days from the date on which the completed application is filed. The FERC may, however, for good cause, issue an order extending the time for consideration of the merger application by an additional 180 days. If the FERC does not issue an order within the statutory deadline, then the transaction is deemed to be approved. We expect that the FERC will approve the Merger within the initial 180-day review period. However, there is no guarantee that the FERC will approve the Merger, not extend the time period for its review, or not impose conditions on its approval.

Federal Communications Commission

Pursuant to FCC regulations implementing provisions of the Communications Act of 1934, as amended, an entity holding private radio licenses for internal communications purposes generally must obtain the prior approval of the FCC before the direct or indirect transfer of control or assignment of those licenses. We hold certain FCC licenses for private internal communications and, thus, must obtain prior FCC consent to assign or transfer control of those licenses. The parties anticipate that they will be able to obtain the required FCC approvals. An application to obtain such approval is expected to be filed later this year or in 2025.

Minnesota Public Utilities Commission

Approval of the Merger by the MPUC is required for the consummation of the Merger. The Company will file a petition for regulatory approval with the MPUC, including relevant attachments and exhibits under Minnesota Rules and Statutes, pursuant primarily to Minn. Stat. § 216B.50. It is expected that the petition will be filed with the MPUC in July 2024. To approve the Merger, Minnesota law requires that the MPUC must find that the Merger is consistent with the public interest, taking into consideration the reasonable value of the property, plant, or securities to be acquired or disposed of, or merged and consolidated. In reaching its determination, the MPUC will weigh the potential benefits against the potential detriments or concerns of the Merger.

The petition filed with the MPUC will contain information addressing the standard for approval and filing requirements applicable to the Merger. It will also address potential procedural paths for MPUC consideration of the matter. However, there is no guarantee that the MPUC will approve the Merger or that the MPUC will not impose terms or conditions as part of its approval that constitute a Burdensome Condition.

Public Service Commission of Wisconsin

The Company will make a filing with the PSCW that asks the PSCW to find that the Wisconsin Utility Holding Company Act (“WUHCA”) does not apply to the Merger because the Company is exempt from WUHCA pursuant to Wis. Stat. section 196.795(8)(a), which provides that companies formed before 1985 and that were not formed by public utilities are exempt from WUHCA requirements. In the alternative, the Company in the same filing, will request that the PSCW make a finding that the Merger is subject to the WUHCA takeover provision of Wis. Stat. section 196.795(3), which requires PSCW approval for the acquisition of more than 10% of the outstanding voting securities of a Wisconsin utility holding company, with the unconditional power to vote those securities. Additionally, the Company may request that the PSCW find that the Merger will not result in the formation of a holding company, pursuant to Wis. Stat. section 196.795(2), or a reorganization of Superior Water, Light and Power, pursuant to Wis. Stat. section 196.79. The Company expects to make the filing with the PSCW in July 2024.

The application will contain exhibits and will address the relevant statutory standards and precedent. However, there is no guarantee that the PSCW will find the transaction wholly exempt from WUHCA, or in the alternative, will approve the transaction as a WUHCA takeover, or will not impose terms or conditions as part of its approval that constitute a Burdensome Condition.

Dissenters’ Rights

Accounting Treatment

The Merger will be accounted for as a “purchase transaction” for financial accounting purposes.

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Delisting and Deregistration of Company Common Stock

If the Merger is completed, shares of Company Common Stock will be delisted from the NYSE and deregistered under the Exchange Act.

Litigation Relating to the Merger

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INTERESTS OF THE COMPANY’S DIRECTORS AND EXECUTIVE OFFICERS IN THE MERGER

Leadership of the Company Following the Merger

As of the date of this proxy statement, none of the Company’s executive officers has entered into any new agreement, arrangement or understanding with Parent or any of its affiliates regarding the terms and conditions of compensation, incentive pay or employment with the Company after the Merger. Although no agreements have been entered into at this time with any of the Company’s executive officers, prior to or following the completion of the Merger, they may enter into new agreements or amendments to existing arrangements with Parent or one of its affiliates regarding their employment with the Company after the Merger.

On March 19, 2024, the Company announced the retirement of an executive officer, Margaret A. Thickens, Vice President, Chief Legal Officer and Corporate Secretary, effective May 31, 2024. Effective June 1, 2024, Julie Padilla began serving as the Company’s Vice President, Chief Legal Officer and Corporate Secretary.

As of the Effective Time, the then-current directors of the Company are expected to cease serving as directors except as otherwise determined by Parent.

Other Interests of the Company’s Directors and Executive Officers in the Merger

In considering the recommendations of the Board with respect to the Merger, our shareholders should be aware that the directors and executive officers of the Company have certain interests, including financial interests, in the Merger that may be different from, or in addition to, the interests of our shareholders generally. The Board was aware of these interests and considered them, among other matters, in approving the Merger Agreement, and in making its recommendation that our shareholders approve the Merger Proposal. See “The Proposed Merger—Background of the Merger” beginning on page 22 and “The Proposed Merger—Recommendation of the Company’s Board and its Reasons for the Merger” beginning on page 37 for more information. These interests are described in more detail further below, and certain of them are quantified in the narrative and the table below in “—Potential Change in Control Payments to Named Executive Officers.”

As of June 12, 2024, the Company’s executive officers for purposes of the discussion below were as follows:

Name			Position
Bethany M. Owen*			Chair, President and CEO
Steven W. Morris*			Senior Vice President and CFO
Nicole R. Johnson*			Vice President; President-ALLETE Clean Energy
Joshua J. Skelton*			Vice President; Chief Operating Officer–Minnesota Power
Patrick L. Cutshall			Vice President and Corporate Treasurer
Julie L. Padilla			Vice President, Chief Legal Officer and Corporate Secretary

These individuals were each a “named executive officer” for purposes of the definitive proxy statement for the 2024 annual meeting of the Company’s shareholders, filed by the Company on March 28, 2024. Margaret A. Thickens, the Company’s former Vice President, Chief Legal Officer and Corporate Secretary, who was also a named executive officer for purposes of the definitive proxy statement for the 2024 annual meeting of the Company’s shareholders, filed by the Company on March 28, 2024, retired effective May 31, 2024, and was not an executive officer of the Company as of June 12, 2024.

Assumptions

The potential payments and benefits to directors and executive officers in the narrative and tables below are, unless otherwise noted, based on the following assumptions:

•	the relevant price per share of Company Common Stock is $67.00 per share, which is the Merger Consideration;

•	the assumed Effective Time was June 12, 2024, which is the assumed date of the effectiveness of the Merger solely for purposes of this disclosure;

•	the executive officers were each terminated without “cause” or resign for “good reason,” in either case, immediately following the assumed Effective Time of June 12, 2024;

•	the directors’ service on the Board was terminated immediately following the assumed Effective Time of June 12, 2024;

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•	the executive officer’s base salary rate and annual target bonus were those in effect as of June 12, 2024; and

•

outstanding vested and unvested RSUs, PSAs and DSUs held by our executive officers and non-employee directors, in each case, were their holdings as of June 12, 2024. Depending on when the Merger is completed, certain Company awards that were unvested as of June 12, 2024, and included in the tables below may vest or be forfeited pursuant to their terms, independent of the Merger. In addition, the amounts included in the tables below do not include any other incentive award grants (including any equity compensation awards that may be granted in respect of fiscal year 2025 to the extent the transaction has not closed by February 10, 2025) or dividends or dividend equivalents that may be accrued after June 12, 2024.

Accordingly, the amounts set forth in the narrative and tables below are estimates based on multiple assumptions that may or may not actually occur, including the assumptions described above. Some of the assumptions are based on events which may not occur or other contingencies and, as a result, the actual amounts received by a director or executive officer may differ materially from the amounts shown below. Certain of the amounts shown have also been rounded to the nearest whole number.

Equity Compensation Awards

As of the Effective Time, all equity compensation awards held by our directors and executive officers will be treated as follows and described in more detail under “The Merger Agreement—Treatment of Company Equity Compensation Awards” beginning on page 69.

Each RSU that is outstanding and unvested immediately prior to the Effective Time will be canceled as of the Effective Time and converted into a contingent right to receive a converted cash award with respect to an aggregate amount, without interest, equal in value to (x) the number of shares of Company Common Stock subject to such RSU immediately prior to the Effective Time after giving effect to the accumulation of dividend equivalents credited in respect of such RSU, multiplied by (y) the Merger Consideration, subject to deduction for any applicable withholding taxes. Each such converted cash award will continue to have, and payment will be subject to, the same terms and conditions, including vesting conditions, as applied to the corresponding RSU immediately prior to the Effective Time.

Each RSU that is outstanding and vested immediately prior to the Effective Time will be canceled as of the Effective Time and converted into a right to receive an aggregate amount, without interest, in cash equal in value to (x) the number of shares of Company Common Stock subject to such vested RSU immediately prior to the Effective Time after giving effect to the accumulation of dividend equivalents credited in respect of such RSU, multiplied by (y) the Merger Consideration, payable following the Closing Date at such time as may be required to comply with tax rules governing deferred compensation, subject to deduction for any applicable withholding taxes.

Each PSA that is outstanding and unvested immediately prior to the Effective Time will be canceled as of the Effective Time and converted into the right to receive, without interest, the Merger Consideration with respect to the number of shares of Company Common Stock underlying each PSA, based on attainment of the applicable performance metrics at the greater of (1) the number of PSAs determined in accordance with the performance criteria as otherwise provided in the applicable award agreement and as if the performance period ended as of the last business day immediately preceding the Closing Date or (2) the target award; in either case, pro-rated, after giving effect to the accumulation of dividend equivalents credited in respect of each such PSA. Payment with respect to the Applicable PSAs (i.e., for PSAs granted prior to the signing of the Merger Agreement, the pro-rated portion of each PSA, based on the number of whole calendar months within the vesting period that have elapsed as of the Effective Time in relation to the number of calendar months in the entire vesting period), will be made as soon as reasonably practicable following the Closing Date, subject to deduction for any applicable withholding taxes. At the Effective Time, any outstanding portion of each converted PSA that is not comprised of Applicable PSAs (which will include the entirety of any PSA granted after the signing of the Merger Agreement) will continue to have, and payment will be subject to, the same terms and conditions (including time-based vesting conditions, but excluding performance-based vesting conditions) as applied to the corresponding PSAs immediately prior to the Effective Time.

Each DSU that is outstanding immediately prior to the Effective Time will be canceled as of the Effective Time and converted into a right to receive a cash payment with respect to an aggregate amount, without interest, equal in value to (x) the number of shares of Company Common Stock subject to such DSU immediately prior to the Effective Time after giving effect to the accumulation of dividend equivalents credited in respect of such DSU, multiplied by (y) the Merger

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Consideration. Each such converted cash award will continue to have, and payment will be subject to, the same terms and conditions, including elections with respect to time of payment, as applied to the corresponding DSU immediately prior to the Effective Time. No DSUs will become payable solely as a result of the Merger; however, certain non-employee directors may have elected to defer distribution of the DSUs until such time as the non-employee director has a “separation from service” pursuant to the non-employee director compensation deferral plan governing such deferred compensation. In such case, the non-employee director’s converted cash award will become payable at the Effective Time if the non-employee director ceases to serve as a director in connection with the Merger.

To the extent equity compensation awards are granted in respect of fiscal year 2025 prior to the Closing Date, no portion of any PSAs will be eligible to vest or become payable in connection with the Closing as Applicable PSAs, and converted cash awards in respect of such PSAs will be based on the target performance level. Any RSUs or PSAs granted in respect of fiscal year 2025 prior to the Closing Date may provide for “double trigger” vesting acceleration in the event of the termination without “cause” of the recipient’s employment in the 12-month period immediately following the Closing. Such awards are otherwise expected to have substantially the same terms and conditions as annual equity compensation awards granted by the Company during the 2024 calendar year.

To the extent permitted, the ESPP will terminate as of immediately prior to the Closing Date and no further rights will be granted or exercised under the ESPP thereafter. For any offering period in effect under the ESPP immediately prior to the Closing, the Company will establish a new ESPP Exercise Date, with the automatic purchase of Company Common Stock with respect to accumulated employee contributions of each participant under the Company ESPP in respect of such offering period to occur on such date. The amount of the accumulated contributions of each participant under the ESPP as of immediately prior to the ESPP Exercise Date will, to the extent not used to purchase Company Common Stock in accordance with the terms and conditions of the ESPP, be refunded to such participant as promptly as practicable following the Effective Time, without interest.

The following table sets forth, for the Company’s directors and executive officers as described above, the aggregate amounts payable in respect of RSUs, PSAs and DSUs, calculated based on the assumptions described under “Assumptions” above.

	RSUs		PSAs			DSUs
Name	Number	Value–Total⁽¹⁾	Number	Value–Total	Value–Paid at the Assumed Effective Time⁽²⁾	Number⁽³⁾	Value–Total
Non-Employee Directors
George G. Goldfarb	—	—	—	—	—	16,888	$1,131,503
James J. Hoolihan	—	—	—	—	—	10,837	$726,066
Madeleine W. Ludlow	—	—	—	—	—	4,920	$329,637
Charles R. Matthews	—	—	—	—	—	5,092	$341,140
Susan K. Nestegard	—	—	—	—	—	11,814	$791,523
Douglas C. Neve	—	—	—	—	—	16,940	$1,135,013
Barbara A. Nick	—	—	—	—	—	—	—
Robert P. Powers	—	—	—	—	—	12,306	$824,489
Charlene A. Thomas	—	—	—	—	—	—	—
Executive Officers⁽⁴⁾
Bethany M. Owen	13,599	$911,117	43,192	$2,893,894	$1,348,536	—	—
Steven W. Morris	4,603	$308,386	12,769	$855,501	$327,063	—	—
Nicole R. Johnson	3,662	$245,348	11,513	$771,378	$349,794	—	—
Joshua J. Skelton	2,608	$174,714	7,612	$510,037	$242,776	—	—
Patrick L. Cutshall	2,617	$175,313	7,262	$486,523	$223,834	—	—
Julie L. Padilla	851	$57,047	2,553	$171,073	$23,760	—	—

(1)

At the Effective Time, outstanding and unvested RSUs will be canceled and converted into cash awards, which will remain outstanding and eligible to vest, subject to the same terms and conditions that applied to the corresponding RSUs immediately prior to the Effective Time. No RSUs that are unvested as of the assumed Effective Time of June 12, 2024, will accelerate and vest solely as a result of the Merger. RSUs that are vested as of the assumed Effective Time of June 12, 2024, will be paid at such time as is permitted by the tax rules governing deferred compensation, which may be after the Effective Time.

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(2)	As described in further detail above, a pro-rated portion of each PSA outstanding at the time of signing the Merger Agreement will become payable following the Effective Time at such time as is permitted by the tax rules governing deferred compensation.

(3)

As described in further detail above, converted cash awards payable in respect of DSUs will continue to have, and payment will be subject to, the same terms and conditions, including elections with respect to time of payment, as applied to the corresponding DSU immediately prior to the Effective Time, which may include payment upon the termination of the non-employee director’s service as a director in connection with the Merger.

(4)

Ms. Thickens retired effective May 31, 2024. As a result of her retirement, and independent of the Merger, a pro-rated portion of Ms. Thickens’ RSUs (based on the number of calendar months within the vesting period that had elapsed as of her retirement date in relation to the number of calendar months in the vesting period) became immediately vested and entitled to settle, subject to a six-month delay in payment in accordance with the tax rules governing deferred compensation. A pro-rated portion of Ms. Thickens’ PSAs (based on the number of whole calendar months elapsed between the beginning of the applicable performance period and her retirement date in relation to the number of calendar months in the performance period) remain outstanding and eligible to vest. At the Effective Time, such outstanding PSAs will be converted into a cash award, which will be payable as soon as reasonably practicable following the Closing Date, subject to the terms and conditions as are applied to the Applicable PSAs generally, and no portion of the award will be eligible to vest following the Closing Date. The aggregate target value of the Merger Consideration that Ms. Thickens is eligible to receive in respect of the outstanding PSAs is $622,189.

Cash Bonuses

Pursuant to the terms of the Merger Agreement, with respect to annual cash bonuses for the fiscal year in which the Effective Time occurs (including those payable to our executive officers):

•

On or immediately following the Effective Time, the Company will pay, or cause to be paid to, each such executive officer who is participating as of immediately prior to the Effective Time in the annual bonus program for such year, a pro-rated annual cash bonus for such fiscal year based the deemed achievement at the target level of attainment of the applicable performance criteria, with such pro-ration made based on the portion of such fiscal year completed as of the Effective Time; and

•

For the remaining portion of such fiscal year following the Effective Time, each such executive officer will be eligible for a pro-rated annual cash bonus, subject to such performance criteria as may be determined by Parent or the surviving corporation; provided that such pro-rata payment will be at the greater of the (i) target level of performance originally established for the fiscal year or (ii) the actual level of performance against the performance criteria determined by Parent or the surviving corporation.

The following table sets forth, for the Company’s executive officers as described above, (i) the estimated value of the portion of the current annual bonus that the individual would be entitled to receive at the assumed Effective Time and (ii) the estimated value of the portion of the annual bonus that the individual would be eligible to receive with respect to the remaining portion of the fiscal year, in each case, measured based on the target level of performance (which latter amount could be greater if warranted by actual performance).

Name⁽¹⁾	Value of Pro-Rated Bonus Paid at the Assumed Effective Time	Value of Outstanding Pro-Rated Bonus
Bethany M. Owen	$386,518	$481,368
Steven W. Morris	$137,992	$171,854
Nicole R. Johnson	$104,872	$130,607
Joshua J. Skelton	$75,741	$94,328
Patrick L. Cutshall	$77,829	$96,928
Julie L. Padilla⁽²⁾	$11,667	$81,667

(1)

Ms. Thickens retired effective May 31, 2024. As a result of her retirement, and independent of the Merger, Ms. Thickens is eligible to receive a pro-rated portion of her annual bonus earned with respect to fiscal year 2024, and such pro-rated bonus would be paid in the ordinary course at the time such bonuses are usually paid but for the Merger. In connection with the Merger, the aforementioned pro-rated bonus that Ms. Thickens is eligible to receive would be payable, in an aggregate amount equal to a $95,892 (her target opportunity), on or immediately following the assumed Effective Time, subject to the tax rules governing deferred compensation. To the extent the actual Closing Date does not occur until fiscal year 2025, Ms. Thickens’ pro-rated annual bonus for fiscal year 2024 would be paid in the ordinary course, based on actual performance with respect to fiscal year 2024, at the time such bonuses are usually paid and she would not be eligible to receive any additional annual cash bonus for fiscal year 2025.

(2)	Ms. Padilla's payment has been pro-rated to reflect the fact that she became eligible to participate in the Company's annual bonus plan shortly after she joined the company, which was during fiscal year 2024 and after the applicable performance period began.

Potential Severance Payments and Benefits

Each of our current executive officers is eligible to receive benefits under the Amended and Restated ALLETE and Affiliated Companies Change in Control Severance Plan (the “CIC Severance Plan”). Under the CIC Severance

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Plan, an executive officer is entitled to receive the following benefits in the event the executive officer’s employment is involuntarily terminated during the period beginning six months before and ending two years after a change in control (which will occur upon the Merger) based on the assumptions set forth above:

For Ms. Owen and Mr. Morris, a lump-sum severance payment equal to the sum of (i) two and one-half times the sum of their respective annual base salary and target bonus opportunity, and (ii) two and one-half times the sum of (x) the executive officer’s annual medical, dental and basic group term life insurance benefit premiums and (y) Company contributions on their respective behalf under the Flexible Compensation Plan. The Company will also pay up to $25,000 for outplacement services.

For Ms. Johnson, Mr. Skelton, Mr. Cutshall, and Ms. Padilla, a lump sum severance payment equal to the sum of (i) two times the sum of their respective annual base salary and target bonus opportunity, and (ii) two times the sum of (x) their respective annual medical, dental and basic group term life insurance benefit premiums and (y) Company contributions on the executive officer’s behalf under the Flexible Compensation Plan. The Company will also pay up to $25,000 for outplacement services.

For purposes of the CIC Severance Plan, an involuntary termination is deemed to occur if (i) the Company terminates the employment of the executive officer other than for “cause,” or (ii) the executive officer resigns from their employment with “good reason” (each, as defined in the CIC Severance Plan).

As a condition of receiving payments under the CIC Severance Plan, participants must execute and not revoke a waiver of potential claims against the Company and must agree not to disclose confidential information, engage in any business in competition with the Company for a period of one and a half years for Ms. Owen and Mr. Morris and one year for all other executive officers, recruit any employee or director of the Company for employment for a period of two years, or publicly disparage the Company for a period of one year.

The Company Executive Long-Term Incentive Compensation Plan further provides that RSUs will immediately vest on a prorated basis if the executive officer’s employment is terminated other than for “cause” (as defined therein) within 18 months of the change in control. For additional information about the value of RSUs held by our executive officers, see the section titled “—Equity Compensation Awards” above.

The table below sets forth the estimated value of the severance payments and benefits that the executive officers of the Company would be eligible to receive under the CIC Severance Plan. The estimated amounts below do not include any amounts in respect of RSUs and PSAs held by our executive officers, nor do they attempt to quantify any reductions in order to avoid any applicable “golden parachute” excise taxes under the Code.

Name	Base Salary	Bonus	Benefits	Outplacement Services
Bethany M. Owen	$2,206,490	$2,206,490	$47,088	$25,000
Steven W. Morris	$1,191,713	$774,615	$75,803	$25,000
Nicole R. Johnson	$856,288	$470,958	$65,297	$25,000
Joshua J. Skelton	$755,865	$340,138	$61,981	$25,000
Patrick L. Cutshall	$699,026	$349,514	$62,312	$25,000
Julie L. Padilla	$700,000	$280,000	$30,779	$25,000

Potential Change in Control Payments to Named Executive Officers

The table below sets forth for each of the named executive officers estimates of the amounts of compensation that are based on or otherwise relate to the Merger. Certain amounts will or may become payable on a qualifying termination of employment following the Merger (i.e., on a “double-trigger” basis). Certain other benefits will become payable upon the occurrence of the Closing (i.e., on a “single-trigger” basis).

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The amounts shown are, unless otherwise noted, calculated based on the assumptions described under “Assumptions” above and noted in the footnotes below, which may or may not actually occur. Accordingly, the actual amounts received by each named executive officer may differ materially from the amounts shown in the following table.

Golden Parachute Compensation

Name⁽¹⁾	Cash⁽²⁾	Equity⁽³⁾	Perquisites/Benefits⁽⁴⁾	Total
Bethany M. Owen	$5,327,954	$1,728,168	$25,000	$7,081,122
Steven W. Morris	$2,351,977	$455,557	$25,000	$2,832,534
Nicole R. Johnson	$1,628,022	$452,022	$25,000	$2,105,044
Joshua J. Skelton	$1,328,053	$315,573	$25,000	$1,668,626

(1)

Under relevant SEC rules, the Company is required to provide information in this table with respect to the Company’s named executive officers, who, for these purposes, are the individuals whose compensation was required to be reported in the summary compensation table of the Company’s most recent proxy statement. Ms. Thickens, who was a named executive officer in the Company’s most recent definitive proxy statement filed on March 28, 2024, retired, effective May 31, 2024, and is not entitled to receive any such compensation, with the exception of $622,189 in respect of her PSAs, as described above. For purposes of this proxy statement, based on an assumed Effective Time of June 12, 2024, Ms. Thickens would also be eligible to receive a pro-rated portion of her annual bonus earned with respect to fiscal year 2024 in an amount equal to $95,892, as described above.

(2)

As described in more detail in the section entitled “Interests of the Company’s Directors and Executive Officers in the Merger—Potential Severance Payments and Benefits” beginning on page 64, the amounts in this column represent the cash severance payments that would be payable to each applicable named executive officer in the event the executive officer’s employment is involuntarily terminated without “cause” or due to a resignation for “good reason” during the period beginning six months before and ending two years after the Merger, which would consist of (i) for Ms. Owen and Mr. Morris, a lump-sum severance payment equal to the sum of (1) two and one-half times the sum of their respective annual base salary and target bonus opportunity, and (2) two and one-half times the sum of (A) the executive officer’s annual medical, dental and basic group term life insurance benefit premiums, plus (B) Company contributions on their respective behalf under the Flexible Compensation Plan and (ii) for Ms. Johnson and Mr. Skelton, a lump sum severance payment equal to the sum of (1) two times the sum of their respective annual base salary and target bonus opportunity and (2) two times the sum of (A) their respective annual medical, dental and basic group term life insurance benefit premiums, plus (B) Company contributions on the executive officer’s behalf under the Flexible Compensation Plan. All such payments are “double-trigger” in nature. Additionally, as described in more detail in the section entitled “Interests of the Company’s Directors and Executive Officers in the Merger—Cash Bonuses” beginning on page 64, the amounts in the column include the full amount of the 2024 bonus each executive officer would be entitled to receive under the Merger Agreement, which is reflected at the target amount and includes the portion that would be paid at the assumed Effective Time and the portion that would remain outstanding and eligible to be earned with respect to post-Closing periods; such payments in respect of the 2024 bonus are “single trigger” in nature.

The cash amounts for each named executive officer are calculated as follows:

Named Executive Officer	Annual Salary	Target Annual Bonus Opportunity	Benefits Payment	2024 Bonuses	Total Cash Payments
Bethany M. Owen	$2,206,490	$2,206,490	$47,088	$867,886	$5,327,954
Steven W. Morris	$1,191,713	$774,615	$75,803	$309,846	$2,351,977
Nicole R. Johnson	$856,288	$470,958	$65,297	$235,479	$1,628,022
Joshua J. Skelton	$755,865	$340,138	$61,981	$170,069	$1,328,053

(3)

As described in more detail in the section entitled “The Merger Agreement—Treatment of Company Equity Compensation Awards” beginning on page 69, the amounts in this column represent the estimated pre-tax value to each named executive officer of (i) the RSUs held by such executive officer that would immediately vest on a prorated basis if the executive officer’s employment is terminated other than for “cause” within 18 months following the Effective Time (this is a “double trigger” benefit), and (ii) the Applicable PSAs held by such executive officer that will accelerate and be paid at the Effective Time (this is a “single-trigger” benefit). The amounts in this column do not include any outstanding portions of converted PSAs that are not comprised of Applicable PSAs, which will be canceled and converted into a converted cash award, and continue to have, and be subject to, the same terms and conditions (including time-based vesting conditions but excluding performance-based vesting conditions) as applied to the corresponding PSA immediately prior to the Effective Time, as described in more detail in the section titled “The Merger Agreement—Treatment of Company Equity Compensation Awards” Beginning on page 69.

The equity amounts for each named executive officer are calculated as follows:

Name	Value of RSUs	Value of Applicable PSAs	Total Equity Payments
Bethany M. Owen	$379,632	$1,348,536	$1,728,168
Steven W. Morris	$128,494	$327,063	$455,557
Nicole R. Johnson	$102,228	$349,794	$452,022
Joshua J. Skelton	$72,797	$242,776	$315,573

(4)	The amounts in this column represent the value of outplacement services such named executive officer is eligible to receive under the CIC Severance Plan. This is a “double trigger” benefit.

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Consideration Payable for Outstanding Shares

The Company’s directors and executive officers who own shares of Company Common Stock will receive the same Merger Consideration in connection with the Merger, on the same terms and conditions, as the other shareholders of the Company, as described in the section entitled “The Merger Agreement—Effects of the Merger; Merger Consideration” beginning on page 68. The interests of our directors and executive officers with respect to their shares of Company Common Stock are not different from, or in addition to, the interests of our shareholders generally.

The following table sets forth the number of shares of Company Common Stock beneficially owned as of June 12, 2024, by each of the Company’s directors and current executive officers as described above. For purposes of the table below, the number of shares of Company Common Stock excludes shares of Company Common Stock that are underlying outstanding RSUs, PSAs and DSUs.

Name	Shares Beneficially Owned⁽¹⁾	Cash Merger Consideration for Shares Beneficially Owned
Non-Employee Directors
George G. Goldfarb	6,580	$440,860
James J. Hoolihan	16,326	$1,093,842
Madeleine W. Ludlow	19,093	$1,279,231
Charles R. Matthews	647	$43,349
Susan K. Nestegard	686	$45,962
Douglas C. Neve	11,593	$776,731
Barbara A. Nick	11,425	$765,475
Robert P. Powers	664	$44,488
Charlene A. Thomas	6,620	$443,540
Executive Officers
Bethany M. Owen	27,470	$1,840,490
Steven W. Morris	10,940	$732,980
Nicole R. Johnson	10,974	$735,258
Joshua J. Skelton	13,676	$916,292
Patrick L. Cutshall	9,264	$620,688
Julie L. Padilla	0	$0
Margaret A. Thickens⁽²⁾	5,764	$386,188

(1)

The share amounts in this column include: (i) shares as to which voting and investment power is shared with the person’s spouse: Mr. Hoolihan—16,326, Mr. Matthews—647, and Mr. Neve—9,850; (ii) shares owned by the person’s spouse: Mr. Skelton—4,657; and (iii) shares owned by the person as custodian for child: Ms. Johnson—64.

(2)

Effective May 31, 2024, Margaret A. Thickens retired. Ms. Thickens was the Company’s former Vice President, Chief Legal Officer and Corporate Secretary, and was also a named executive officer for purposes of the definitive proxy statement for the 2024 annual meeting of the Company’s shareholders, filed by the Company on March 28, 2024.

Director and Officer Indemnification and Insurance

Under the terms of the Merger Agreement, for a period of six years from the Effective Time, the surviving corporation will either maintain in effect the current policies of directors’ and officers’ liability insurance and fiduciary liability insurance maintained by us or our subsidiaries or provide substitute policies for the Company and our current and former directors and officers who are currently covered by the directors’ and officers’ and fiduciary liability insurance coverage currently maintained by us, in either case, in amounts not less than the existing coverage and having other terms not materially less favorable to the insured persons than the directors’ and officers’ liability insurance and fiduciary liability insurance coverage currently maintained by us with respect to claims arising from facts or events that occurred on or before the Effective Time. This indemnification and insurance coverage is further described in the section entitled “The Merger Agreement—Director and Officer Indemnification and Insurance” beginning on page 82.

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THE MERGER AGREEMENT

This section of the proxy statement describes the material provisions of the Merger Agreement but does not purport to describe all of the terms of the Merger Agreement. The following summary is qualified in its entirety by reference to the complete text of the Merger Agreement, which is attached as Annex A to this proxy statement and incorporated into this proxy statement by reference. We encourage you to read carefully the Merger Agreement in its entirety, as the rights and obligations of the parties thereto are governed by the express terms of the Merger Agreement and not by this summary or any other information contained in this proxy statement.

Explanatory Note Regarding the Merger Agreement

The following summary of the Merger Agreement, and the copy of the Merger Agreement attached as Annex A to this proxy statement, are intended to provide information regarding the terms of the Merger Agreement and are not intended to provide any factual information about us or to modify or supplement any factual disclosures about us in our public reports filed with the SEC. In particular, the Merger Agreement and the related summary are not intended to be, and should not be relied upon as, disclosures regarding any facts and circumstances relating to us. The Merger Agreement contains representations and warranties by, and covenants of, the Company, Parent and Merger Sub, and they were made only for purposes of that agreement and as of specified dates. The representations, warranties and covenants in the Merger Agreement were made solely for the benefit of the parties to the Merger Agreement, may be subject to limitations, qualifications and other particulars agreed upon by the contracting parties, including being qualified by confidential disclosures made for the purposes of allocating contractual risk between the parties to the Merger Agreement instead of establishing these matters as facts or being made for other purposes, and may be subject to contractual standards of materiality or material adverse effect applicable to the contracting parties that generally differ from those applicable to investors. In addition, information concerning the subject matter of the representations, warranties and covenants may change after the date of the Merger Agreement, which subsequent information may or may not be fully reflected in our public disclosures and reports filed with the SEC. The representations, warranties and covenants in the Merger Agreement and any descriptions thereof should be read in conjunction with the disclosures in our periodic and current reports, proxy statements and other documents filed with the SEC.

The Merger

The Merger Agreement provides for the Merger of Merger Sub with and into the Company, with the Company to continue as the surviving corporation and a subsidiary of Parent.

Completion and Effectiveness of the Merger

Unless the Merger Agreement has been terminated in accordance with its terms, which are described in the section entitled “The Merger Agreement—Termination; Termination Fees; Expenses” beginning on page 88, or the parties mutually agree in writing to another date, the parties will complete the Merger no later than the date that is the fifth business day after all of the conditions to completion of the Merger contained in the Merger Agreement, which are described in the section entitled “The Merger Agreement—Conditions to the Merger” beginning on page 87, are satisfied or waived (to the extent permitted by law), including the receipt of the Company shareholder approval. The Merger will become effective upon the later of the time that the articles of merger are duly accepted for filing by the Secretary of State of the State of Minnesota in accordance with the MBCA or the certificate of merger is filed with and accepted for record by the Secretary of State of the State of Delaware, or at such later time as is permissible in accordance with the MBCA and the Delaware Limited Liability Company Act and, as the parties mutually agree, as specified in the articles of merger and the certificate of merger.

Effects of the Merger; Merger Consideration

Company Common Stock

As a result of the Merger, the Company Common Stock will no longer be publicly traded and will be delisted from the NYSE. In addition, the Company Common Stock will be deregistered under the Exchange Act, and we will no longer file periodic reports with the SEC. If the Merger is completed, you will not own any shares of the surviving corporation.

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Except as described below, subject to the terms and conditions of the Merger Agreement, at the Effective Time, each share of Company Common Stock issued and outstanding immediately prior to the Effective Time (other than dissenting shares or, if applicable, one share owned by GIP or an affiliate) will automatically be converted into the right to receive the Merger Consideration.

The Merger Consideration will be equitably adjusted to reflect fully the effect of any reclassification, recapitalization, stock split (including any reverse stock split), combination, subdivision, exchange or readjustment of shares with respect to Company Common Stock or any stock dividend or stock distribution with respect to Company Common Stock (or securities convertible into or exercisable for shares of Company Common Stock), in each case, having a record date after the date of the Merger Agreement and prior to the Effective Time.

If applicable, one share of Company Common Stock held directly or indirectly by GIP or its affiliate immediately prior to the Effective Time will be converted into and become one share of Class B common stock of the surviving corporation and will constitute the only outstanding share of Class B common stock of the surviving corporation.

Units of Parent

Each membership interest unit of Parent issued and outstanding immediately prior to the Effective Time shall remain issued and outstanding and unaffected by the Merger.

Units of Merger Sub

Each membership interest unit of Merger Sub issued and outstanding immediately prior to the Effective Time shall be converted into and become one share of Class A common stock of the surviving corporation and shall constitute the only outstanding shares of Class A common stock of the surviving corporation.

Company Preferred Stock

Each share of preferred stock issued and outstanding immediately prior to the Effective Time shall remain issued and outstanding and unaffected by the Merger.

Dissenting Shares

All shares of Company Common Stock issued and outstanding immediately prior to the Effective Time and held by shareholders who have not voted in favor of approval of the Merger Proposal and who are entitled to demand and who properly exercise dissenters rights with respect to such shares and who complied in all respects with all the applicable provisions of the MBCA (“Dissenting Shares”) will automatically be canceled and will cease to exist, and each holder of Dissenting Shares (a “Dissenter”) will cease to have any rights with respect thereto, except such holder will be entitled to payment of the fair value (including interest determined in accordance with Section 302A.473 of the MBCA) in respect of such Dissenting Shares. If a Dissenter fails to perfect or otherwise waives, withdraws or loses the right to dissent, then the right of such Dissenter to be paid the fair value of such Dissenter’s Dissenting Shares will cease and such Dissenting Shares will be deemed to be converted as of the Effective Time into, and to have become exchangeable solely for the right to receive, the Merger Consideration, without interest thereon.

The Merger Agreement provides that the Company will give Parent prompt written notice of any demands and any other instruments served pursuant to applicable law that are received by the Company for dissenters’ rights with respect to any shares and Parent shall have the right to participate in and direct all negotiations and proceedings with respect to such demands. In addition, the Merger Agreement provides that prior to the Effective Time, the Company will not, without the prior written consent of Parent, make any payment with respect to, or settle or compromise or offer to settle or compromise, any such demand, or agree to do any of the foregoing.

Treatment of Company Equity Compensation Awards

Generally speaking, Company equity compensation awards will be treated as follows at the Effective Time:

•

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Company Common Stock subject to such RSU immediately prior to the Effective Time after giving effect to the accumulation of dividend equivalents credited in respect of such RSU, multiplied by (y) the Merger Consideration, subject to deduction for any applicable withholding taxes. Each such converted cash award will continue to have, and payment will be subject to, the same terms and conditions, including vesting conditions, as applied to the corresponding RSU immediately prior to the Effective Time.

•

Vested RSUs. Each RSU that is outstanding and vested immediately prior to the Effective Time will be canceled as of the Effective Time and converted into a right to receive an aggregate amount, without interest, in cash equal in value to (x) the number of shares of Company Common Stock subject to such vested RSU immediately prior to the Effective Time after giving effect to the accumulation of dividend equivalents credited in respect of such RSU, multiplied by (y) the Merger Consideration, payable following the Closing Date at such time as may be required to comply with tax rules governing deferred compensation, subject to deduction for any applicable withholding taxes.

•

PSAs. Each PSA that is outstanding and unvested immediately prior to the Effective Time will be canceled as of the Effective Time and converted into the right to receive, without interest, the Merger Consideration with respect to the number of shares of Company Common Stock underlying each PSA, based on attainment of the applicable performance metrics at the greater of (1) the number of PSAs determined in accordance with the performance criteria as otherwise provided in the applicable award agreement and as if the performance period ended as of the last business day immediately preceding the Closing Date or (2) the target award; in either case, pro-rated, after giving effect to the accumulation of dividend equivalents credited in respect of each such PSA. Payment with respect to the Applicable PSAs (i.e., the pro-rated portion of each PSA outstanding prior to the execution of the Merger Agreement, based on the number of whole calendar months within the vesting period that have elapsed as of the Effective Time in relation to the number of calendar months in the entire vesting period), will be made as soon as reasonably practicable following the Closing Date, subject to deduction for any applicable withholding taxes. At the Effective Time, any outstanding portion of each converted PSA that is not comprised of Applicable PSAs (which will include the entirety of any PSA granted after signing the Merger Agreement) will continue to have, and payment will be subject to, the same terms and conditions (including time-based vesting conditions, but excluding performance-based vesting conditions) as applied to the corresponding PSAs immediately prior to the Effective Time.

•

Treatment of the Company’s Direct Stock Purchase and Dividend Reinvestment Plan

The Company DRIP will be terminated at the Effective Time. However, such termination will not have any effect on the shares of Company Common Stock credited to the account of participants in the Company DRIP at the time of termination or the right of the holder of such shares of Company Common Stock to receive the Merger Consideration.

Treatment of the Company’s Employee Stock Purchase Plan

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Company ESPP in respect of such offering period to occur on such date. The amount of the accumulated contributions of each participant under the ESPP as of immediately prior to the ESPP Exercise Date will, to the extent not used to purchase Company Common Stock in accordance with the terms and conditions of the ESPP, be refunded to such participant as promptly as practicable following the Effective Time, without interest.

Lost, Stolen and Destroyed Certificates

If a stock certificate representing shares of Company Common Stock has been lost, stolen or destroyed, the holder of such certificate must deliver an affidavit of that fact prior to receiving any Merger Consideration and, if required by Parent, may also be required to provide a bond (in such reasonable and customary amount as Parent may direct, as indemnity against any claim that may be made against it with respect to such certificate) prior to receiving any Merger Consideration.

Representations and Warranties

The Merger Agreement contains general representations and warranties made by each of Parent and Merger Sub on the one hand, and the Company on the other, regarding aspects of their respective businesses, financial condition and structure, that were made principally for purposes of providing disclosure and allocating risk within the Merger Agreement among the parties and were not intended to be a means of establishing facts. In addition, the assertions included in such representations and warranties are subject to qualifications and limitations agreed to by each of Parent and Merger Sub, on the one hand, and the Company, on the other hand, in connection with negotiating the terms of the Merger Agreement. We made a number of representations and warranties to Parent and Merger Sub in the Merger Agreement, including representations and warranties relating to the following matters:

•	the organization, qualifications to do business and standing of the Company and its subsidiaries;

•	the capital structure and the absence of restrictions or encumbrances with respect to the capital stock of the Company;

•	ownership of capital stock or voting securities of or other equity interests in, any other person;

•	our authority to enter into and consummate the transactions contemplated by the Merger Agreement, including the Merger, and the vote of our shareholders required to complete the Merger;

•

the absence of any conflict or violation of the organizational documents of the Company and its subsidiaries, any applicable laws or any contract of the Company and its subsidiaries or the creation of an encumbrance on any of our property or assets as a result of entering into and consummating the transactions contemplated by the Merger Agreement;

•	the governmental and regulatory approvals required to complete the Merger;

•	the authorizations, licenses and permits of the Company;

•	our SEC filings and the financial statements contained in those filings;

•	our internal controls over financial reporting and disclosure controls and procedures;

•	our compliance with the Sarbanes-Oxley Act of 2002 and the listing and corporate governance requirements of the NYSE;

•	the absence of undisclosed liabilities that would be required by United States generally accepted accounting principles (“GAAP”) to be disclosed on a balance sheet;

•	compliance of this proxy statement with applicable law;

•	the absence of certain changes or events since December 31, 2023;

•	our and our subsidiaries’ compliance with applicable laws and permits;

•	our and our subsidiaries’ taxes and tax returns;

•	our and our subsidiaries’ benefit plans, labor and employment matters;

•	our contracts and the absence of breaches of material contracts;

•	the absence of material litigation;

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•	our owned and leased real properties and easements;

•	environmental matters;

•	necessary actions taken by us to ensure that the Merger is not subject to any anti-takeover laws or any anti-takeover provision of our articles of incorporation or bylaws;

•	our intellectual property;

•	our and our subsidiaries’ IT systems and security of personal information;

•	our compliance with applicable privacy and data security laws and the absence of unauthorized access of personal data or intellectual property;

•	the receipt of opinions of J.P. Morgan and Houlihan Lokey;

•	our and our subsidiaries’ insurance policies;

•	entitlements to any broker, finder, financial advisor or similar fee in connection with the transactions contemplated by the Merger Agreement;

•	non-reliance on any other representation and warranties other than the representations and warranties set forth in the Merger Agreement or certificates delivered by Parent in accordance with the Merger Agreement; and

•	“holding company” status under the Public Utility Holding Company Act of 2005 and regulatory filing compliance.

Parent and Merger Sub each made a number of representations and warranties to us in the Merger Agreement, including representations and warranties relating to the following matters:

•	the organization, qualifications to do business and standing of Parent and of Merger Sub;

•	the authority of Parent and Merger Sub to enter into and consummate the transactions contemplated by the Merger Agreement without any other vote or corporate proceedings on the part of Parent;

•

the absence of any conflict or violation of the organizational documents of Parent or Merger Sub, any applicable laws or any contract of Parent or the creation of an encumbrance on any of Parent’s property or assets as a result of entering into and consummating the transactions contemplated by the Merger Agreement;

•	the governmental and regulatory approvals required to complete the Merger;

•	the accuracy of information supplied by Parent or Merger Sub for inclusion or incorporation by reference in this proxy statement;

•	Parent’s compliance with applicable laws;

•	the authorizations, licenses and permits of Parent;

•	the absence of material litigation;

•	the ownership of Company Common Stock;

•	the availability of funds and sufficiency of financing to consummate the Merger;

•	the delivery of the equity commitment agreements and guaranties of each Sponsor and the enforceability thereof;

•	the absence of contingencies related to the funding of the financing commitments other than as set forth in the financing commitments;

•	the ownership of Merger Sub by Parent;

•	the solvency of Parent and Merger Sub before and after the Merger;

•	independent investigation conducted by Parent and Merger Sub and non-reliance on any other representation and warranties other than the representations and warranties set forth in the Merger Agreement or certificates delivered by the Company in accordance with the Merger Agreement; and

•	entitlements to any broker, finder, financial advisor or similar fee in connection with the transactions contemplated by the Merger Agreement.

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Some of the representations and warranties in the Merger Agreement are qualified by materiality qualifications or a “material adverse effect” qualification.

Under the terms of the Merger Agreement, a material adverse effect on Parent means any fact, circumstance, effect, change, event or development that has or would reasonably be expected to have a material and adverse effect on the ability of Parent or Merger Sub to consummate, or that would reasonably be expected to prevent or materially impede, interfere with or delay Parent or Merger Sub’s consummation of, the transactions contemplated by the Merger Agreement. Further, under the terms of the Merger Agreement, a material adverse effect on the Company means any fact, circumstance, effect, change, event or development that has or would reasonably be expected to have a material adverse effect on the business, properties, financial condition or results of operations of the Company and its subsidiaries, taken as a whole. However, no such fact, circumstance, effect, change, event or development resulting from or arising out of any of the following, individually or in the aggregate, will constitute or be taken into account in determining whether a material adverse effect on the Company has occurred:

•

any failure in and of itself by the Company or any of its subsidiaries to meet any internal or public projection, budget, forecast, estimate or prediction in respect of revenues, earnings or other financial or operating metrics for any period (it being understood that the facts or occurrences giving rise to or contributing to such failure may be deemed to constitute, or be taken into account in determining whether there has or will be, a material adverse effect on the Company);

•

any change attributable to the announcement, execution or delivery of the Merger Agreement or the pendency of the Merger, including (1) any action taken by the Company or any of its subsidiaries that is expressly required pursuant to the Merger Agreement, or is consented to by Parent, or any action taken by Parent or any of its affiliates, to obtain any Required Approval to the consummation of the Merger and the result of any such actions, (2) any claim arising out of or related to the Merger Agreement (including shareholder litigation) or (3) any adverse change in supplier, employee, financing source, shareholder, regulatory, partner or similar relationships resulting therefrom (provided that this will not apply to any representation or warranty that is intended to address the consequences of negotiation, execution, announcement or pendency of the transactions contemplated by the Merger Agreement or with respect to any conditions to Closing to the extent such condition relates to any such representation or warranty);

•

any change in and of itself in the market price, credit rating or trading volume of shares of Company Common Stock on the NYSE or any change affecting the ratings or the ratings outlook for the Company or any of its subsidiaries (it being understood that the facts or occurrences giving rise to or contributing to such failure may be deemed to constitute, or be taken into account in determining whether there has or will be, a material adverse effect on the Company); or

•	any change or effect arising from any requirements imposed by any governmental entities as a condition to obtaining the Required Approvals.

The following facts, circumstances, effects, changes, events and developments are also excluded in determining whether a material adverse effect on the Company has occurred, but will be taken into account to the extent such matters disproportionately affect the Company and its subsidiaries, taken as a whole, as compared to other companies operating in the industry in which the Company and its subsidiaries operate (in which case, only the incremental disproportionate impact may be taken into account in determining whether there has been, or would be, a material adverse effect on the Company, to the extent such change is not otherwise excluded from being taken into account):

•

any change or condition affecting any industry in which we or any of our subsidiaries operate, including electric generating, transmission or distribution, natural gas transmission and distribution, construction and performance contracting industries (including, in each case, any changes in the operations thereof);

•	any change affecting any economic, legislative or political condition or any change affecting any securities, credit, financial or other capital markets condition, in each case in the United States, in any foreign jurisdiction or in any specific geographical area;

•	any change or condition affecting the market for commodities, including any change in the price or availability of commodities;

•	any change in applicable law, regulation or GAAP (or authoritative interpretation thereof);

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•	geopolitical conditions, the outbreak or escalation of hostilities, any act of war, sabotage or terrorism, or any escalation or worsening of any such act of war, sabotage or terrorism threatened or underway as of the date of the Merger Agreement;

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any fact, circumstance, effect, change, event or development resulting from or arising out of or affecting the national, regional, state or local engineering or construction industries or the wholesale or retail markets for commodities, materials or supplies (including equipment supplies, steel, concrete, electric power, fuel, coal, natural gas, water or coal transportation) or the hedging markets therefor, including any change in commodity prices;

•	any hurricane, strong winds, ice event, fire, tornado, tsunami, flood, earthquake or other natural disaster or severe weather-related event, circumstance or development; or

•	any epidemic, pandemic or disease outbreak (including the COVID-19 virus), or other public health condition, or any other force majeure event, or any escalation or worsening thereof.

The Company’s Conduct of Business Before Completion of the Merger

Pursuant to the terms of the Merger Agreement, we have agreed, beginning as of the date of the Merger Agreement and until the Effective Time, except (1) for certain specified matters or matters otherwise expressly contemplated or required by the Merger Agreement, (2) as required by a governmental entity or by applicable law, (3) in accordance with the Company’s budget or (4) as consented to in writing by Parent (which consent cannot be unreasonably withheld, conditioned or delayed), to use, and to cause our subsidiaries to use, commercially reasonable efforts to:

•

conduct our business in the ordinary course of business in all material respects (which will be deemed to include taking or refraining to take actions as and to the extent the Company or any of its subsidiaries reasonably believe necessary or appropriate in response to any epidemic, pandemic or disease outbreak (including the COVID-19 virus); provided that prior to taking any such action in response to the foregoing, to the extent reasonably practicable, the Company reasonably consults with Parent and considers in good faith any recommendations of Parent in respect thereto);

•	operate in accordance with the Company’s budget in all material respects;

•

preserve intact, in all material respects and consistent with past practice, our business organization, goodwill and existing relationships with employees (including certain employees), customers, suppliers (including any power providers), joint venture partners, lenders, landlords and any other person having a business relationship with the Company or any of its subsidiaries, and governmental entities;

•	maintain in effect all material permits necessary for the conduct of our business and to timely submit renewal applications (as applicable); and

•	satisfy obligations as necessary to maintain in good standing material development projects and opportunities (such as paying deposits, timely submitting required information and otherwise continuing to pursue generation and transmission development opportunities).

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In addition, we agreed that, beginning as of the date of the Merger Agreement and until the Effective Time, except (1) for certain specified matters or matters otherwise expressly contemplated or required by the Merger Agreement, (2) as required by a governmental entity or by applicable law or (3) as consented to in writing by Parent (which consent cannot be unreasonably withheld, conditioned or delayed, except where the Company seeks Parent’s consent to enter into a material new line of business or to cease operations of any existing material line of business), we will not, and will not permit any of our subsidiaries to:

•

declare, set aside or pay any dividends on, or make any other distributions (whether in cash, stock or property or any combination thereof) in respect of, any of its capital stock, other equity interests or voting securities, subject to certain exceptions including: (1) quarterly cash dividends payable by the Company in respect of shares of Company Common Stock with declaration, record, increase and payment dates consistent with the Company’s past practices in an amount per share of Company Common Stock not in excess of 5% per share more than the dividend payable during the prior 12-month period, (2) dividends and distributions by a direct or indirect wholly owned subsidiary of the Company solely to its parent, (3) dividends and distributions by the Company or any of its subsidiaries required under certain tax equity transaction documents and (4) a “stub period” dividend to holders of record of Company Common Stock as of immediately prior to the Effective Time equal to the product of (A) the number of days from the record date for payment of the last quarterly dividend paid by the Company prior to the Effective Time and (B) a daily dividend rate determined by dividing the amount of the last quarterly dividend paid prior to the Effective Time by 91;

•

amend any organizational documents (1) except for immaterial or ministerial amendments or amendments required by changes in law or (2) with respect to any subsidiary other than (A) a material subsidiary, (B) any subsidiary that constitutes a “significant subsidiary” as defined in Rule 1-02(w)(1) of Regulation S-X under the Securities Act, including any subsidiary that became or becomes a “significant subsidiary” as defined in Rule 1-02(w)(1) of Regulation S-X under the Securities Act, or (3) any other subsidiary if such amendment would reasonably be expected to prevent or materially impede, interfere with or delay the consummation of the transactions contemplated by the Merger Agreement;

•

split, combine, consolidate, subdivide, reclassify or take similar action with respect to any capital stock, other equity interests or voting securities, or securities convertible into or exchangeable or exercisable for capital stock or other equity interests or voting securities, or issue or authorize the issuance of any other securities in respect of, in lieu of or in substitution for capital stock, other equity interests or voting securities except for (1) transactions exclusively among the Company and its wholly owned subsidiaries and (2) as otherwise permitted by the Merger Agreement;

•

repurchase, redeem or otherwise acquire, or offer to repurchase, redeem or otherwise acquire, any capital stock or voting securities of, or equity interests in, our or our subsidiaries, securities of ours or our subsidiaries convertible into or exchangeable or exercisable for capital stock or voting securities of, or equity interests in, our of any of our subsidiaries, or any warrants, calls, options, “phantom” stock or units, stock appreciation rights or other equity or equity-based rights to acquire any such capital stock, securities, interests or rights, except for (1) transactions between us and our subsidiaries or between or among our subsidiaries, (2) acquisitions by the Company of shares of Company Common Stock in the open market to satisfy the obligations under all Company benefit plans or the Company DRIP or deferrals based on Company Common Stock, in each case, in accordance with their terms in effect as of the date of the Merger Agreement, (3) the withholding or reacquisition of shares of Company Common Stock in respect of forfeitures of equity awards in accordance with their terms or to satisfy our tax obligations with respect to awards granted pursuant to the Company stock plans in accordance with their terms in effect as of the date of the Merger Agreement and (4) in connection with, or otherwise in accordance with, certain tax equity transaction documents;

•

issue, deliver, sell, grant, pledge or otherwise encumber or subject to any lien, any equity securities or voting debt, subject to certain exceptions including (1) the settlement of RSUs or PSAs or of deferrals based on Company Common Stock, in each case, in accordance with their terms in effect as of the date of the Merger Agreement, (2) the issuance of shares of Company Common Stock or other equity securities to satisfy the Company’s obligations under the Company benefit plans or when due in accordance with their terms in effect as of the date of the Merger Agreement or under the Company DRIP or deferrals based on Company Common Stock, in each case, in accordance with their terms in effect as of the date of the Merger

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Agreement, (3) in connection with, or in accordance with, certain tax equity transaction documents, (4) the issuance of preferred stock to Parent or any of its affiliates in accordance with the transactions contemplated in the Merger Agreement or (5) as otherwise permitted by the Merger Agreement;

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grant or announce to any Company personnel any increase in compensation or benefits (including paying to any company personnel any amount not due by its terms), except for (1) increases permitted by the Merger Agreement (including, but not limited to, increases required by the terms of any Company union contracts existing as of the date of the Merger Agreement or due to planned hiring permitted by the Merger Agreement), (2) grant to any Company personnel any change-in-control, severance, retention or termination pay, or enter into or amend any change-in-control, severance, retention or termination agreement with any Company personnel, (3) establish, adopt, enter into, amend in any material respect or terminate any Company benefit plan, except for amendments in the ordinary course of business consistent with past practices that either (A) do not materially increase costs for the Company or its subsidiaries or (B) are otherwise reasonably expected to be recoverable in a rate case, or (4) take any action to increase or accelerate or commit to accelerate the time of vesting, funding or payment of any compensation or benefits to any Company personnel, including under any Company benefit plans, except in the case of the foregoing clauses (1) through (4) for actions required pursuant to the terms of any Company union contracts, Company benefit plan or “rabbi” trust, in each case, existing on the date of the Merger Agreement or as otherwise permitted by the Merger Agreement;

•	hire, promote or terminate (other than for cause) any individual who is subject to requirements of Section 16 under the Exchange Act with respect to the Company or waive or release the restrictive covenant obligations of any Company personnel;

•	commence an obligation to contribute to any multiemployer plan or incur any complete or partial withdrawal liability with respect to any multiemployer plan;

•	materially amend, extend, terminate or enter into any Company union contract;

•	make any material change in accounting methods, principles or practices, except to the extent as may be required or authorized by a change in applicable law or GAAP or by any governmental entity (including the SEC or the Public Company Oversight Board);

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make any acquisition of an asset or business (including by merger, consolidation or acquisition of stock or any other equity interests or assets); provided that no consent of Parent will be required for the following acquisitions so long as, in each case, such acquisition is not reasonably expected to have a material adverse impact on or cause a material delay in obtaining any Required Approval, to cause a material adverse change to the applicable regulatory status of the Company or any of its subsidiaries if such acquisition would be material to the Company taken as a whole, or cause the Company or any of its subsidiaries if such acquisition would be material to the Company taken as a whole, to no longer be eligible for any currently applicable authorizations, exemptions or waivers under the FPA or the Public Utility Holding Company Act of 2005: (1) any acquisition for consideration that is individually not in excess of $20 million and in the aggregate not in excess of $40 million in any calendar year; (2) any acquisition by the Minnesota Power and Superior Water, Light and Power business that the Company reasonably expects will be included in rate base so long as the acquisition price the Company agrees to pay does not include amounts that are not typically recoverable in regulated rates such as an acquisition premium or goodwill, (3) any acquisition, lease or option of real estate in the ordinary course of business or (4) any acquisition by New Equity Energy LLC or its subsidiaries in the ordinary course of business that does not materially deviate from the capital expenditure plan in the capital expenditure budget, it being understood that any acquisitions contemplated in the preceding clauses (2), (3) and (4) will not be included the calculation of the aggregate amounts permitted in the preceding clause (1);

•

sell, lease or otherwise transfer or dispose of any asset or business (including by merger, consolidation or disposition of stock or any other equity interests or assets) except for any disposition (1) of assets with an individual value not in excess of $10 million and an aggregate value not in excess of $25 million in any calendar year, (2) of sales or leases of real estate in the ordinary course of business, (3) of obsolete or

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worn-out equipment in the ordinary course of business, or (4) in connection with, or in accordance with, certain tax credit transfer documents, it being understood that any dispositions contemplated in the preceding clauses (2), (3) and (4) shall not be included in the calculation of the aggregate amounts permitted in the preceding clause (1);

•

(1) incur or guarantee any indebtedness, except for (A) indebtedness in replacement of or refinancing of existing indebtedness that matures within one year from the date of replacement or refinancing subject to certain conditions, (B) guaranties by the Company of existing indebtedness of any subsidiary, (C) guaranties and other credit support by the Company of obligations of any subsidiary, (D) borrowings under existing revolving credit facilities or existing commercial paper programs or, in each case, replacements thereof on comparable terms (or with respect to interest rates, then-market rates), in the case of the foregoing clauses (A) through (D), in the ordinary course of business, (E) indebtedness contemplated by certain tax equity transaction documents or (F) indebtedness in amounts necessary to maintain the current capital structure of the Company and its utility subsidiaries, or as otherwise authorized by the MPUC and the PSCW that satisfies certain conditions; (2) other than as expressly contemplated by the Merger Agreement, terminate certain specified debt agreements; (3) incur any encumbrance other than encumbrances permitted by the Merger Agreement or (4) or amend, modify or waive any term or provision of any indebtedness in a manner adverse in any material respect to the Company (it being agreed and understood that any amendment, modification or waiver that gives effect to certain prohibited terms or that would not satisfy certain required terms shall be adverse in a material respect to the Company);

•

make, or agree to commit to make, any capital expenditure, except for (1) certain expenditures contemplated by our capital expenditure plan plus a 10% variance per calendar year with respect to our aggregate capital budget, (2) capital expenditures related to operational emergencies, equipment failures or outages or deemed necessary or prudent in accordance with the practices approved by a significant portion of the water or electric generating, or gas or electric transmission or distribution industries, in each case, subject to certain conditions or (3) as required by law or a governmental entity; provided that, in the case of clause (2), we will provide Parent notice of such action taken as soon as reasonably practicable thereafter;

•

except as required by applicable law or as occurring in the ordinary course of business consistent with past practice, change or rescind any entity classification or other material tax election (except that we may make or permit our subsidiaries to make certain tax elections as required or permitted pursuant to certain tax equity transaction documents or certain tax credit transfer documents), change any material method of tax accounting, settle or compromise any material tax liability, audit, refund or other tax proceeding, enter into any “closing agreements” (within the meaning of Section 7121 of the Code or any similar provision of state, local or non-U.S. law) or request any ruling in either case relating to a material amount of taxes or request any extension or waiver of the limitation period applicable to any material tax claim;

•

waive, release, assign, settle or compromise any material claims against us or our subsidiaries, except waivers, releases, assignments, settlements or compromises that are limited solely to (1) the payment of monetary damages that, with respect to the payment of such monetary damages, the amount of monetary damages to be paid by us or our subsidiaries does not exceed (A) the amount reflected on our financial statements (including the notes thereto) or (B) $10 million, in the aggregate, in excess of the proceeds received or to be received from any insurance policies in connection with such payment and (2) non-monetary terms that are not material to us;

•	announce or effectuate a reduction in force, “plant closing,” “mass layoff” or other workforce actions that trigger the Workers Adjustment and Retraining Notification Act;

•	enter into a material new line of business or cease operations of an existing material line of business;

•	sell, assign, transfer, license, abandon, permit to lapse, or otherwise dispose of, any of our or our subsidiaries’ material intellectual property other than non-exclusive licenses granted in the ordinary course of business;

•	adopt or recommend a plan or agreement of complete or partial liquidation or dissolution, restructuring or other reorganization;

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fail to maintain, terminate or cancel any material insurance coverage maintained by us or our subsidiaries with respect to any material assets without using commercially reasonable efforts to replace such coverage with a comparable amount of insurance coverage to the extent available on commercially reasonable terms;

•	(1) form any new subsidiary (except for any such subsidiary that is wholly owned by us) or joint ventures or (2) materially modify the terms of any existing joint ventures in a manner that is adverse to us in any material respect;

•

(1) enter into contracts that (A) restrict or impede the Company’s or any of its subsidiaries’ ability to do business in material respects or (B) relate to the transfer or disposition of business or assets by the Company or any of its subsidiaries and have any continuing indemnification, guarantee, “earnout” or other contingent, deferred or fixed payment obligations that would reasonably be expected to result in aggregate payments in excess of $25 million after the date of the Merger Agreement, (2) enter into any contract with amounts due to or payable by us or any of our subsidiaries in excess of (i) $100 million over the life of the contract, in the case of a contract in respect of the Minnesota Power and Superior Water, Light and Power businesses, or (ii) $20 million over a consecutive 12-month period in respect of any of our other businesses, (3) modify or amend in any material respect that is materially adverse to us or any of our subsidiaries, or terminate or waive any material right under, any contract, except for (A) any modification, amendment, termination or waiver in the ordinary course of business or (B) a termination or waiver without material penalty or loss of material benefit to the Company or any of its subsidiaries, or (4) enter into any contract under which our consummation of the transactions contemplated by the Merger Agreement will result in any breach or violation of, or constitute a default under (or an event which with notice or lapse of time or both would become a default), or result in the loss of a benefit under, or give rise to any right of termination, cancellation or acceleration of, such contract; or

•	agree to take, or enter into any contract to do, any of the foregoing.

In the event that the Company or any of its subsidiaries would be prohibited from taking any of the foregoing actions without the prior written consent of Parent, such action may nevertheless be taken without such consent if the Company requests Parent’s prior written consent (provided that such request is made via email and delivered to certain individuals) and Parent fails to respond in writing or fails to withhold its consent to such request within 10 business days after the date of such request; provided that Parent shall use reasonable best efforts to respond within any such shorter time period as may be requested by the Company and reasonably warranted by the circumstances.

Notwithstanding anything to the contrary in the Merger Agreement, we and our subsidiaries may take reasonable actions in compliance with applicable laws with respect to operational emergencies (including any restoration measures in response to any hurricane, strong winds, ice event, fire, tornado, tsunami, flood, earthquake or other natural disaster, severe weather-related event, circumstance or development, act of terrorism or sabotage), cybersecurity incidents, equipment failures, outages or with any immediate and material threat to the health or safety of natural persons; provided that (1) we will provide Parent with notice of such action taken as soon as reasonably practicable thereafter and (2) such actions are deemed prudent by us in good faith and made in accordance with the practices approved by a significant portion of the water or electric generating, or gas or electric transmission or distribution industries, as applicable. In addition, until the consummation of the Merger, we will exercise complete control and supervision over our operations, in compliance with the terms of the Merger Agreement.

We and Parent have also agreed to promptly notify each other of any change or event of which one of us becomes aware of that would reasonably be expected to prevent any of the Closing conditions from being satisfied. Further, from the date of the Merger Agreement until the Effective Time, we will promptly notify Parent of any loans or grants pursued or obtained by us that would trigger a review pursuant to the National Environmental Policy Act (including loans or grants under the Inflation Reduction Act or similar federal or state incentives or loans or grants under the Title 17 Clean Energy Financing Program).

Non-Solicitation of Other Offers; Superior Proposal

Under the terms of the Merger Agreement, subject to certain exceptions described below, we have agreed that we and our subsidiaries will not, and will instruct our respective representatives not to, either directly or indirectly:

•	solicit, initiate, or knowingly encourage, induce or facilitate any Company takeover proposal (as defined below) or any inquiry, offer or proposal that constitutes, or would reasonably be expected to lead to, a Company takeover proposal, in each case, except for the Merger Agreement;

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participate in any discussions or negotiations with any person (except between the Company’s affiliates and their respective representatives and Parent and Parent’s affiliates and its and their respective representatives with respect to the transactions contemplated by the Merger Agreement) regarding, or furnish to or afford any such person with access to, our and our subsidiaries’ businesses, operations, assets, books, records, personnel or any nonpublic information with respect to, or cooperate in any way with any such person with respect to, any Company takeover proposal or any inquiry, offer or proposal that constitutes, or would reasonably be expected to lead to, a Company takeover proposal; or

•

authorize, permit, approve or recommend, or propose publicly to authorize, permit, approve or recommend, or allow us or any of our affiliates to execute or enter into, any contract, letter of intent, memorandum of understanding, agreement in principle, agreement, merger agreement, acquisition or similar agreement or commitment constituting, or that would reasonably be expected to lead to, any Company takeover proposal, or requiring, or that would reasonably be expected to cause, us to abandon or terminate the Merger Agreement.

A Company takeover proposal is any inquiry, offer or proposal (whether or not in writing) from any person or group (other than Parent and its affiliates) relating to, in a single transaction or series of related transactions, any direct or indirect:

•

merger, consolidation, share exchange or other business combination, recapitalization, liquidation, dissolution or similar transaction involving the Company pursuant to which any persons or group (or the equityholders of any person) would acquire, directly or indirectly, 20% or more of the consolidated assets of the Company and its subsidiaries, taken as a whole, or to which 20% or more of the consolidated revenues, net income or assets of the Company and its subsidiaries, taken as a whole, or 20% or more of the voting power of the Company or of the surviving entity in any merger, consolidation, share exchange or other business combination involving the Company;

•

sale, lease, contribution or other disposition, directly or indirectly, by merger, consolidation, share exchange or other business combination, spin-off, partnership, joint venture, sale of capital stock of or other equity interest in a Company subsidiary or otherwise, of any business or assets of the Company and its subsidiaries representing 20% or more of the consolidated revenues, net income or assets of the Company and its subsidiaries, taken as a whole;

•

issuance, sale or other disposition, directly or indirectly, to any person (or the shareholders of any person) or group of securities (or options, rights or warrants to purchase, or securities convertible into or exchangeable for, such securities) representing 20% or more of the voting power of the Company;

•

transaction (including any tender offer or exchange offer) in which any person (or the shareholders of any person) would acquire (in the case of a tender offer or exchange offer, if consummated), directly or indirectly, beneficial ownership, or the right to acquire beneficial ownership, or formation of any group which beneficially owns or has the right to acquire beneficial ownership of, 20% or more of any class of capital stock of the Company;

•	any public announcement of a proposal, plan or intention to do any of the foregoing or any agreement to engage in any of the foregoing; or

•	any combination of the transactions described above, in each case, other than the Merger.

Notwithstanding the foregoing, at any time prior to obtaining Company shareholder approval of the Merger Proposal, in response to a bona fide written Company takeover proposal made after the date of the Merger Agreement that does not result, directly or indirectly, from a breach (other than an immaterial breach) of our non-solicitation obligations and which the Board determines in good faith (after consultation with its nationally recognized financial advisor and outside legal counsel) (1) constitutes, or to be reasonably likely to lead to, a Company superior proposal (as defined below) and (2) the failure to consider such Company takeover proposal would be reasonably likely to be inconsistent with its fiduciary duties under applicable law, we and our representatives may (A) furnish information with respect to us and our subsidiaries to the person making such Company takeover proposal and its representatives (provided that all such information has previously been provided to Parent or is provided to Parent as promptly as practicable after, and in any event within 24 hours of, the provision of such information to such person) pursuant to a confidentiality agreement that contains confidentiality provisions that are no less favorable to us than our confidentiality agreements with Parent and does not restrict us from complying with our obligations under the Merger Agreement or require us to pay or reimburse the

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counterparty’s expenses, and (B) participate in discussions regarding the terms of such Company takeover proposal, including terms of an acquisition agreement with respect thereto, and the negotiation of such terms with the person making such Company takeover proposal (and its representatives) pursuant to such confidentiality agreement.

Additionally, we are obligated to provide oral and written notice promptly (and in any event no later than 24 hours after receipt) to Parent of any Company takeover proposal, the material terms and conditions of any such Company takeover proposal and the identity of the person making such Company takeover proposal. In addition, we are obligated to keep Parent reasonably informed in all material respects on a reasonably current basis (and in any event no later 24 hours thereafter) of the material terms and status (including any change to such terms) of any Company takeover proposal. We will notify Parent in writing promptly (and in any event within 24 hours) after we begin engaging in discussions or negotiations concerning a Company takeover proposal.

As defined under the Merger Agreement, a Company superior proposal means a bona fide written Company takeover proposal (with all of the references to 20% in the definition of Company takeover proposal described above adjusted to increase the percentages referenced therein to be “more than 50%”) that the Board determines in good faith (after consultation with its nationally recognized financial advisors and outside legal counsel), taking into account the legal, financial, regulatory, timing and other aspects of the Company takeover proposal, the identity of the person making the proposal and any financing required for such proposal, the ability of the person making such proposal to obtain such required financing and the level of certainty with respect to such required financing, and such other factors that are deemed relevant by the Board, that such proposal is (1) more favorable to the holders of shares of Company Common Stock than the transactions contemplated by the Merger Agreement and (2) reasonably capable of being completed in accordance with its terms, after taking into account any revisions to the terms of the Merger Agreement that are committed to in writing by Parent.

Obligation of the Board with Respect to Its Recommendation; Superior Proposal

In the Merger Agreement, the Board has agreed not to (1) withdraw, change, qualify, withhold or modify in any manner adverse to Parent, or propose publicly to withdraw, change, qualify, withhold or modify in any manner adverse to Parent, its recommendation that our shareholders should approve the Merger Proposal, (2) adopt, approve, declare advisable or recommend, or propose publicly to adopt, approve, declare advisable or recommend, any other Company takeover proposal, (3) fail to include in the proxy statement its recommendation that our shareholders approve the Merger Proposal, (4) fail to expressly reaffirm publicly the recommendation following Parent’s written request to do so if a Company takeover proposal is publicly announced or disclosed (provided that Parent may only make such request twice with respect to any particular Company takeover proposal or any material publicly announced or disclosed amendment or modification thereto), on or prior to the earlier of the fifth business day after the delivery of such request by Parent and two business days prior to the Company’s shareholder meeting (or any adjournment or postponement thereof) or (5) take any formal action or make any recommendation or public statement in connection with a tender offer or exchange offer (except for a recommendation against such offer or certain customary communications as contemplated by the SEC rules issued under the Exchange Act).

However, at any time prior to obtaining the Company shareholder approval, the Board may (1) make a change of recommendation upon the occurrence of any material fact, circumstance, effect, change, event or development that occurred or arose after the date of the Merger Agreement, which (A) was neither known by, nor reasonably foreseeable (or, if known, the magnitude or material consequences of which were not known, understood or reasonably foreseeable) by the Board as of the date of the Merger Agreement and (B) first becomes known to or by the Board prior to obtaining Company shareholder approval; provided that none of the following will constitute an intervening event: (i) we or any of our subsidiaries meeting or exceeding any internal or public projection, budget, forecast, estimate or prediction in respect of revenues, earnings or other financial or operating metrics for any period, (ii) any change in and of itself in the trading price or trading volume of shares of Company Common Stock on the NYSE or in our credit rating (provided that, in any case, the event or circumstance underlying such change may be taken into account), (iii) the receipt, existence of or terms of a Company takeover proposal or any inquiry, offer or proposal that constitutes, or could reasonably be expected to lead to, a Company takeover proposal, or any matter relating thereto or consequence thereof or (iv) any action taken by any party pursuant to and in compliance with such party’s obligation under the Merger Agreement or the consequences of any such action, or (2) make a change of recommendation or terminate the Merger Agreement upon receipt of a Company superior proposal that did not result from a material breach of our non-solicitation obligation, in each case, if all of the following conditions are met:

•	the Board provides Parent four business days’ written notice of its intent to make a recommendation change, specifying its reasons therefor, and in the case of a Company superior proposal, (1) also provides

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Parent with the most current draft of any acquisition agreement with respect to such Company superior proposal or, if no draft exists, a summary of the material terms and conditions of such Company superior proposal and (2) previously provided Parent with the information with respect to the underlying Company takeover proposal;

•	during such four-business day period, if requested by Parent, we and our representatives negotiate in good faith with Parent and its representatives regarding any revisions to the Merger Agreement that Parent proposes to make; and

•

at the end of such four-business day period the Board determines in good faith after (1) consultation with outside legal counsel and a nationally recognized financial adviser and (2) taking into account any changes to the terms of the Merger Agreement committed to in writing by Parent that the failure to make such a recommendation change or to terminate the Merger Agreement would reasonably likely be inconsistent with its fiduciary duties under applicable law.

In the event that (1) the change of recommendation by the Board was proposed to have been made in response to a Company superior proposal and (2) Parent has committed in writing to any changes to the terms of the Merger Agreement, and subsequent to such commitment a material revision or amendment is made to the Company takeover proposal that had led to such change of recommendation, the Board must again comply with the foregoing conditions, except that the negotiation period will be reduced to two business days.

Nothing contained in the Merger Agreement prohibits us from (1) complying with Rule 14d-9 and Rule 14e-2 under the Exchange Act or (2) making any disclosure to our shareholders if the Board determines in good faith (after consultation with its outside legal counsel) that the failure to make such disclosure would reasonably likely be inconsistent with its obligations under applicable law.

Reasonable Best Efforts to Complete the Merger

Under the terms of the Merger Agreement, each of Parent and the Company has agreed to use its reasonable best efforts to take, or cause to be taken, all actions, and do, or cause to be done, and assist and cooperate with the other parties in doing, all things necessary to cause the conditions to the Merger to be satisfied and the transactions contemplated by the Merger Agreement to be effected as promptly as reasonably practicable, including:

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making all necessary filings with governmental entities or third parties, including (1) filings with, and the consent of, the MPUC, (2) filings with, and the consent of, the PSCW, (3) the filing of notification and report forms with the Antitrust Division of the DOJ and the FTC under the HSR Act, and expiration or early termination of any applicable waiting periods under the HSR Act, (4) filing with, and the consent of, the EC pursuant to the EC Merger Regulation, (5) filing with, and the consent of, the SAMR pursuant to the Chinese Anti-Monopoly Law, (6) filing with, and the consent of, the Turkish Competition Authority pursuant to the pursuant to Communiqué No. 2010/4 on Mergers and Acquisitions, (7) filings with, and the consent of, the FERC under Section 203 of the FPA, (8) filings with, and the consent of, the FCC to assign or transfer control of our FCC licenses, and (9) filings with, and the consent of, CFIUS;

•	obtaining any consents, licenses, permits, waivers, approvals, authorizations or orders that are necessary, proper or advisable to consummate the Merger and the other transactions contemplated by the Merger Agreement; and

•	executing and delivering any additional instruments that are necessary, proper or advisable to consummate the Merger and the other transactions contemplated by the Merger Agreement.

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restriction on information sharing, Parent will not be required to take any material action related to (i) any of its affiliates, (ii) any Sponsor or their respective direct or indirect portfolio companies owned, managed, advised or controlled by any of the Sponsors or any of their respective affiliates or (iii) any limited partner or other direct or indirect investors in any investment fund affiliated with, advised or managed by, any Sponsor or any of their respective affiliates). Furthermore, in no event will Parent, Merger Sub or any affiliate of Parent be required to pursue or defend any claim against CFIUS in connection with the transactions contemplated by the Merger Agreement and neither the Company nor Parent nor any of our respective affiliates will be obligated to take any action that is not conditioned on the Closing.

The Company and Parent have agreed to cooperate with each other in determining whether any other action or filing is required in connection with the Merger and in seeking any such actions, consents, approvals or waivers or making any such filings. Parent will promptly notify us, and we will notify Parent, of any notice or other communication from any person alleging that such person’s consent is or may be required in connection with the Merger.

However, notwithstanding the foregoing obligations, Parent will not be obligated to, and we will not be permitted (without the prior written consent of Parent) to, undertake any efforts or take any action that, individually or in the aggregate, would result in, or would reasonably be expected to result in, a Burdensome Condition; provided that for the purpose of determining a Burdensome Condition, Parent and its affiliates shall be deemed a consolidated group of entities of the size and scale of a hypothetical company that is 100% of the size of the Company taken as a whole at the date of the Merger Agreement; provided, further, that all of the terms, conditions, obligations, commitments and other measures set forth in Merger Agreement will not in and of themselves, individually or in the aggregate, constitute a Burdensome Condition, but, for the avoidance of doubt, each such term, condition, obligation, commitment and other measure set forth in the Merger Agreement shall be taken into account, together with any other terms, conditions, obligations, commitments, liabilities, undertakings, sanctions or other measures, in determining whether there has been a Burdensome Condition.

Access to Information

Under the terms of the Merger Agreement, we agree to, and to cause our subsidiaries to, afford Parent and its representatives reasonable access (at Parent’s sole cost and expense) during normal business hours and upon reasonable advance notice, to our and our subsidiaries’ properties, books, records, contracts, commitments, officers, employees and other personnel. In addition, we and our subsidiaries will make available promptly to Parent to the extent not publicly available, a copy of each material filing made by us, during the period from the date of the Merger Agreement until the earlier of the Effective Time or the termination of the Merger Agreement, pursuant to the requirements of securities laws or filed with or sent to the SEC, the MPUC, the PSCW or any other governmental entity; provided that in each case, such access and furnishing of information shall not unreasonably disrupt our and our subsidiaries’ operations. Notwithstanding the obligations described above, we are not required to afford such access or furnish information to the extent that the Company reasonably believes that doing so would result in the loss of attorney-client privilege, violate confidentiality obligations or is otherwise commercially sensitive or considered a trade secret (as determined in our reasonable discretion).

Each of GIP, CPP Investments and the Company are required to comply, and to cause their respective subsidiaries and representatives to comply, with their respective obligations under the applicable confidentiality agreements dated as of July 11, 2023, and July 19, 2023.

Director and Officer Indemnification and Insurance

Under the terms of the Merger Agreement, following the Effective Time, Parent has agreed that all rights to indemnification, advancement of expenses and exculpation from liabilities for acts or omissions occurring at or prior to the Effective Time existing at the time of execution of the Merger Agreement in favor of our or our subsidiaries’ current or former directors, officers or employees as provided in our organizational documents and any indemnification or other similar contracts of the Company or its subsidiaries, in each case, as in effect on the date of the Merger Agreement, will continue in full force and effect in accordance with their terms and Parent will cause the surviving corporation to perform its respective obligations thereunder. In addition, the surviving corporation has agreed that it will indemnify and hold harmless each individual who is, as of the date of the Merger Agreement, or who becomes prior to the Effective Time, a director, officer or employee of the Company or any of its subsidiaries or who was serving as of the date of the Merger Agreement, or who began serving prior to the Effective Time, at the request of the Company or any of its subsidiaries as a director, officer or employee of another person.

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Parent has also agreed to advance expenses incurred in the defense of any claim or investigation related thereto; provided that (1) any person seeking advancement of expenses shall first provide an undertaking, if and only to the extent required by applicable law or the surviving corporation’s organizational documents, to repay such advances if it is ultimately determined by final adjudication that such person is not entitled to indemnification and (2) the surviving corporation will cooperate in good faith in the defense of any such matter.

Under the terms of the Merger Agreement, for a period of six years from the Effective Time, the surviving corporation will either maintain in effect the current policies of directors’ and officers’ liability insurance and fiduciary liability insurance maintained by us or our subsidiaries or provide substitute policies for the Company and our current and former directors and officers who are currently covered by the directors’ and officers’ and fiduciary liability insurance coverage currently maintained by us, in either case, in amounts not less than the existing coverage and having other terms not materially less favorable to the insured persons than the directors’ and officers’ liability insurance and fiduciary liability insurance coverage currently maintained by us with respect to claims arising from facts or events that occurred on or before the Effective Time. If the surviving corporation is unable to purchase such policy, it must obtain as much comparable insurance as possible for the years within such six-year period in respect of each policy year within such period. However, the surviving corporation will not be required to pay annual premiums in excess of 300% of the last annual premium paid by us for such policies.

Employee Matters

During the period from the Effective Time until the second anniversary of the Effective Time (or, if earlier, on the termination of employment of the relevant employee) (the “Continuation Period”), Parent will cause the surviving corporation or a subsidiary thereof to provide each individual who is employed by the Company or a subsidiary thereof immediately prior to the Effective Time and who remains in the employ of the surviving corporation or a subsidiary thereof immediately following the Effective Time (“Company Employee”) who is not represented by a union, with (1) the same or better employment position in the same location as held by the Company Employee immediately prior to the Effective Time, unless either (A) such Company Employee consents to such position or location change or (B) such location change is pursuant to a plan put in place by the Company or its applicable subsidiary prior to the Effective Time, (2) a base salary or wage rate that is no less favorable than that provided to the Company Employee immediately prior to the Effective Time, (3) aggregate annual and long-term incentive compensation target opportunities that are no less favorable than those provided to the Company Employee immediately prior to the Effective Time (which may be in the form of cash or private company incentive awards, including one-time awards intended to have at least equivalent value), and (4) employee benefits that are no less favorable in the aggregate than those provided to the Company Employee immediately prior to the Effective Time. During the Continuation Period, Parent will also cause the surviving corporation or a subsidiary thereof to (i) maintain post-retirement welfare arrangements that are no less favorable than those in place for the Company’s current or former employees as of the Effective Time, and (ii) provide each Company Employee who experiences a termination of employment with the surviving corporation (other than for cause) severance benefits no less favorable than those provided under certain severance guidelines.

With respect to annual cash bonuses for the fiscal year in which the Effective Time occurs, (1) on or immediately following the Effective Time, the Company will pay, or cause to be paid to, each Company Employee who is participating as of immediately prior to the Effective Time in the annual bonus program for such year, a pro-rated annual cash bonus for such fiscal year based the deemed achievement at the target level of attainment of the applicable performance criteria with such pro-ration being made based on the portion of such fiscal year completed as of the Effective Time and (2) for the portion of such fiscal year following the Effective Time, each Company Employee will be eligible for a pro-rated annual cash bonus, subject to such performance criteria as may be determined by Parent or the surviving corporation, with such pro-rated annual cash bonus to reflect the number of calendar days during the post-Effective Time portion of the fiscal year during which the Company Employee was employed; provided that the pro-rata payment for the remaining portion of the fiscal year will be at the greater of (A) the target level of performance originally established for the fiscal year or (B) the actual level of performance against the performance criteria determined by Parent or the surviving corporation.

Parent will cause the surviving corporation or its applicable subsidiary to honor (1) the union contracts in effect at the Effective Time in accordance with their terms and (2) the employment, severance, retention, termination and change-in-control plans, policies, programs, agreements, arrangements and guidelines maintained by the Company or any of its subsidiaries at the Effective Time; provided that it will not limit the ability to amend or terminate such plans, programs, agreements, arrangements and guidelines after the Effective Time in accordance with their terms.

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With respect to all employee benefit plans of Parent, the surviving corporation or any of their subsidiaries, each Company Employee’s service with the Company or any of its subsidiaries prior to the Effective Time will be treated as service with Parent, the surviving corporation or any of their subsidiaries, as applicable, for purposes of determining eligibility to participate, level of severance benefits, vesting (other than with respect to equity or equity-based awards) and future vacation benefit accruals, subject to limited exceptions.

Parent will, and will cause the surviving corporation to, use commercially reasonable efforts (1) to waive, or cause to be waived, any pre-existing condition limitations, exclusions, actively at work requirements and waiting periods under any group welfare benefit plans maintained by Parent, the surviving corporation or any of their subsidiaries in which Company Employees (and their eligible dependents) participate from and after the Effective Time, except if such limitations, exclusions, actively-at-work requirements and waiting periods would not have been satisfied or waived immediately prior to the Effective Time, and (2) to recognize the dollar amount of all co-payments, deductibles and similar expenses paid by and credited to each Company Employee (and their eligible dependents) under a group health Company benefit plan during the calendar year in which the Effective Time occurs but only for the portion of such plan year prior to the transition to a successor plan for purposes of satisfying such year’s corresponding deductible and co-payment limitations under any replacement group health benefit plans.

Financing and Financing Cooperation

The Merger is not conditioned upon receipt of financing by Parent or Merger Sub.

Parent and Merger Sub have agreed to use their reasonable best efforts to, and to use their reasonable best efforts to cause their respective affiliates and representatives to, take all actions and do all things necessary, proper or advisable to obtain the net proceeds of financing, or any substitute financing, including, among other things, maintaining in effect and complying with all obligations under (1) the equity commitment agreements among Parent and its affiliates and (2) the Debt Commitment Letter and the fee letter related thereto. Parent has agreed, upon our request from time to time, to keep us reasonably informed on a current and timely basis of the status of Parent’s efforts to obtain the financing and to satisfy the conditions thereof, including advising and updating us, in a reasonable level of detail, with respect to status, proposed closing date of the financing and material terms of the definitive documentation related to the financing, and to give us prompt written notice (A) of any breach or default (or alleged or purported breach or default), or any event or circumstance that (with or without notice, lapse of time or both) would reasonably be expected to give rise to any breach or default, by any party to any of the financing commitment letters, (B) of any termination or repudiation (or alleged or purported termination or repudiation) of any of the financing commitment letters or definitive agreements related to the financing, and (C) if for any reason at any time Parent believes that it may not be able to obtain all or any portion of the financing on the terms, in the manner or from the sources contemplated by the financing commitment letters or any of the definitive agreements related to the financing. Parent shall provide any information reasonably requested by us relating to any of the circumstances referred to in clauses (A) through (C) of the immediately preceding sentence promptly after we make any such request.

We will use our reasonable best efforts, and will cause our subsidiaries to use reasonable best efforts, to provide customary cooperation to Parent in connection with the arrangement of the Debt Financing component of the financing as reasonably requested by Parent. Under the terms of the Merger Agreement, other than in connection with consent solicitations for certain debt agreements, we, our affiliates and our respective subsidiaries have no obligation to incur any costs, fees or liabilities with respect to the Debt Financing. Parent has agreed to reimburse all reasonable and documented out-of-pocket costs incurred by us, our affiliates or our respective subsidiaries and representatives in connection with any cooperation provided by such persons in connection with the Debt Financing and to indemnify and hold us, our affiliates and our respective subsidiaries and representatives harmless from and against all damages, fees, costs and expenses suffered or incurred arising out of such cooperation or the Debt Financing and any information used in connection therewith, other than those damages, fees, costs or expenses resulting from us, our subsidiaries or any of our respective representatives’ fraud, gross negligence or willful misconduct.

In addition, we have agreed that, upon Parent’s request, we will actively assist Parent in obtaining waivers of any “change of control” (or similar term), any default or event of default or any mandatory prepayment or prepayment right or offer for prepayment right arising under certain debt agreements as a result of any of the transactions contemplated by the Merger Agreement and in obtaining other amendments to such debt agreements as may be reasonably requested by Parent, which assistance shall include, without limitation, coordinating with (and introducing Parent and its representatives to) the agents, lenders, noteholders and letter of credit issuers under such debt agreements, executing and entering into such waivers and amendments and complying with customary

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closing deliverables required for the effectiveness thereof. As of the date of this proxy statement, all such waivers and other amendments that have been identified or requested have been obtained.

Refinancing of the 2025 Notes

We have agreed to use best efforts to refinance, redeem, repurchase or otherwise repay all outstanding notes of the 2025 Notes, on or prior to 90 days after the date of the Merger Agreement (unless mutually agreed by both parties in writing) using, together with de minimis cash on hand, the proceeds of, or in exchange for, one or more new series of non-convertible senior unsecured indebtedness, which indebtedness shall (1) be on the market terms reasonably available to us at the time (provided that such terms shall not restrict our or any of our subsidiaries’ ability to pay dividends or distributions or repurchase or redeem equity interests, unless Parent consents to the inclusion of any such restriction), (2) expressly permit all transactions contemplated by the Merger Agreement (including the financing) and (3) not result in any material adverse tax consequences for us (including any such material adverse tax consequences for us that are required to be reflected on a tax return of Parent or any consolidated, unitary or combined tax group of which we or any successor thereto is a member). In addition, we shall consult with Parent on such refinancing, including with respect to the terms of such refinancing indebtedness. If no such refinancing is completed within such 90-day period, without prejudice to Parent’s other rights under the Merger Agreement, we shall (A) authorize and empower Parent to direct a refinancing by us of all outstanding 2025 Notes, and we shall reasonably cooperate in all respects with requests of Parent to consummate or facilitate consummation of such refinancing prior to the Closing (including executing any documents in connection with such refinancing) and (B) undertake at such time as Parent shall select and actively support a consent solicitation with respect to the 2025 Notes to shorten the notice period to optionally redeem the 2025 Notes to five business days (or such other period as Parent shall agree), allow any optional redemption notices in connection with the Merger to be conditional and any other amendments reasonably requested by Parent.

Parent’s Non-Solicit Obligations

Parent has agreed that until the Closing, without the Company’s prior written consent, neither it nor any of its affiliates under its control that has received proprietary information shall, directly or indirectly, solicit for employment or employ any officer or director or senior management employee of the Company or any of its subsidiaries who is employed by the Company or any of its subsidiaries as of, or at any time after, the date of the Merger Agreement and who is introduced (directly or indirectly) to Parent or otherwise has contact with Parent in connection with the transactions contemplated by the Merger Agreement. Notwithstanding the foregoing, Parent and its affiliates shall not be prohibited from (1) making general employment solicitations, whether directly or through a search firm, or hiring any person who responds to such solicitations so long as such solicitations are not in any way targeted at any of the employees of the Company or any of its subsidiaries, (2) soliciting or hiring any current or former employee of the Company or any of its subsidiaries where such person initiates contact, directly or indirectly, with Parent regarding employment with Parent or any of its subsidiaries so long as Parent and its affiliates under its control did not have any contact with such person in violation of Parent’s non-solicit obligations prior to the time such person initiated contact or (3) solicitating or hiring any employee or former employee whose employment with the Company has been terminated by the Company not less than six months prior to such solicitation, offer or hire.

Transition Planning

Pursuant to the Merger Agreement, we and Parent agreed that as soon as reasonably practicable after the date of the Merger Agreement, we and each of CPP Investments and GIP would designate two individuals reasonably acceptable to each other to a transition committee for the purpose, subject to applicable confidentiality agreements and compliance with applicable law, of coordinating with respect to transition planning, material regulatory proceedings, Required Approvals and any other regulatory matters in connection with the transactions contemplated by the Merger Agreement.

In addition, we and Parent agreed that the transition committee will meet at least monthly until the earlier of the termination of the Merger Agreement and the Effective Time. We also agreed to use reasonable best efforts to prepare and deliver a reasonable agenda for each meeting three business days prior to such meeting and to provide Parent with a reasonable opportunity to review each agenda and consider in good faith any reasonable addition or modification proposed by Parent.

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Post-Merger Management and Activities

Under the Merger Agreement, Parent and Merger Sub have agreed, among other things, that the following post-Closing commitments will be included in the initial applications submitted to the MPUC and PSCW:

•	The Company will continue to maintain the headquarters of its regulated businesses in Duluth, Minnesota and Superior, Wisconsin.

•	The name of the Company will be “ALLETE,” and the Company will keep the current name of its regulated operations business in Minnesota as “Minnesota Power” and will or will cause Superior Water, Light and Power Company to keep its current name.

•	The Company will agree (1) to appoint at least one member to the Board from each of Minnesota and Wisconsin; (2) that two members of the Board will be independent directors; and (3) that the chief executive officer of the Company will be a member of the Board.

•	Capital budgets, including material variances of such budgets, will be approved by a majority of the Board.

•

The Company will agree to maintain the current senior management team consistent with the terms otherwise set forth in the Merger Agreement, subject to changes to account for voluntary departures or terminations in the ordinary course, including termination for failure to be in good standing with the Company or any of its subsidiaries or any of their respective policies.

•	For five years after the Closing, the Company will maintain historic levels of economic development and charitable contributions in service territories of the Company and its subsidiaries.

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The Company will not attempt to recover from its utility customers (1) the acquisition premium of the transactions contemplated by the Merger Agreement, (2) the costs of executing the transactions contemplated by the Merger Agreement or (3) transition costs, if any, of the transactions contemplated by the Merger Agreement, except to the extent the transition costs produce savings (and then only as such savings materialize).

•	The Company will agree to use commercially reasonable efforts to maintain its debt/equity ratios and its corporate and facility ratings in accordance with regulatory requirements.

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The Company will agree to certain corporate separateness conditions; provided, however, that after the Closing, the Company will be permitted to request to a governmental entity that certain of the conditions agreed to in the Merger Agreement be limited to a portion of the Company, or to certain of its subsidiaries or affiliates, or otherwise altered to align with a future corporate reorganization.

•	The Company will agree to the obligations with respect to the Company’s employees set forth in the Merger Agreement.

Preferred Equity Investment

Under the terms of the Merger Agreement, the Company and Parent agreed that (1) at any time during the period from July 1, 2025 to September 30, 2025, we may provide Parent with written notice of our intent to raise equity capital in an amount of no less than $50 million and up to $150 million and (2) at any time during the period from October 1, 2025 to December 31, 2025, we may provide Parent with written notice of our intent to raise equity capital in an amount of no less than $50 million and up to $300 million (less any amounts called by us in connection with the initial equity capital raise between July 1, 2025 and September 30, 2025), and, in each case, Parent shall have 10 business days to notify us of its election to participate in such equity capital raises by funding such amounts in exchange for Preferred Shares.

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Conditions to the Merger

Conditions to Each Party’s Obligations. Each party’s obligation to complete the Merger is subject to the satisfaction or waiver of the following conditions:

•	approval of the Merger Proposal by our shareholders;

•	the absence of any law or judgment, whether preliminary, temporary or permanent, in effect that prevents, makes illegal or prohibits the consummation of the Merger;

•	receipt, at or prior to the Effective Time, of all Required Approvals, including the expiration or termination of any waiting period applicable to the Merger (or any agreement between a party and a governmental entity not to consummate the Merger), and all such approvals being final; and

•	receipt of the Required Approvals, including a final order of each of the MPUC and the PSCW.

Conditions to Parent’s and Merger Sub’s Obligations. The obligation of Parent and Merger Sub to complete the Merger is subject to the satisfaction or waiver of the following additional conditions:

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(1) the representations and warranties of the Company in the Merger Agreement (with specified exceptions) must be true and correct as of the date of the Merger Agreement and as of the Closing Date as though made at the Closing Date (except that those representations and warranties that address matters only as of a particular date need only be true and correct as of such date) except where the failure of such representation or warranty to be true and correct has not had and would not reasonably be expected have, individually or in the aggregate, a material adverse effect on the Company (without giving effect to any materiality or material adverse effect qualifications), (2) the representations and warranties of the Company regarding capitalization and brokers’ fees and expenses must be true and correct, in each case, as of the date of the Merger Agreement and as of the Closing Date as though made at the Closing Date (except that those representations and warranties that address matters only as of a particular date need only be true and correct as of such date), except where the failure of any such representation or warranty of Parent or Merger Sub to be true or correct would be de minimis and (3) the representations and warranties of the Company must be true and correct in all respects as of the date of the Merger Agreement and as of the Closing as though made at the Closing (except that those representations and warranties that address matters only as of a particular date need only be true and correct as of such date) regarding (A) the organization, standing and power of the Company, (B) our authority to consummate the Merger as contemplated under the Merger Agreement, (C) the absence of changes or events that have had or would reasonably be expected to have, individually or in the aggregate, a material adverse effect and (D) the inapplicability of anti-takeover statutes or regulations or anti-takeover related provisions set forth in our organizational document;

•	we must have complied with or performed, in all material respects, all covenants and agreements required to be performed by us under the Merger Agreement at or prior to the Closing;

•	since May 5, 2024, there must not have occurred any material adverse effect on the Company or any event or development which, individually or in the aggregate, has had or would reasonably be expected to have a material adverse effect on the Company;

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no applicable law, judgment (to the extent arising in connection with any of the Required Approvals) or any Required Approvals shall impose or require any undertakings, terms, conditions, liabilities, obligations, commitments or sanctions, or any structural or remedial actions that constitute, or would reasonably be expected to constitute, a Burdensome Condition; and

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•

Parent must have received a certificate signed on our behalf by an executive officer of the Company certifying the satisfaction by us of the conditions in the Merger Agreement regarding the truth and correctness of the representations and warranties of the Company contained in the Merger Agreement, our performance of the covenants and agreements required to be performed by it under the Merger Agreement and the absence of any material adverse effect on us since May 5, 2024.

Conditions to the Company’s Obligations. Our obligation to complete the Merger is subject to the satisfaction or waiver of the following further conditions:

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(1) the representations and warranties of Parent and Merger Sub in the Merger Agreement (with specified exceptions) must be true and correct at and as of the date of the Merger Agreement and as of the Closing Date as though made at the Closing Date (except that those representations and warranties that address matters only as of a particular date need only be true and correct as of such date) except where the failure of such representation or warranty to be true and correct has not had and would not reasonably be expected to have, individually or in the aggregate, a material adverse effect on Parent (without giving effect to any materiality or material adverse effect qualifications); and (2) the representations and warranties of Parent and Merger Sub regarding their respective organization, standing and power and their authority to consummate the Merger as contemplated under the Merger Agreement must be true and correct, in each case, as of the date of the Merger Agreement and as of the Closing Date as though made at the Closing Date (except that those representations and warranties that address matters only as of a particular date need only be true and correct as of such date), except where the failure of any such representation or warranty to be true and correct would be de minimis;

•	each of Parent and Merger Sub must have performed, in all material respects, all covenants and agreements required to be performed by them under the Merger Agreement at or prior to the Closing; and

•

we must have received a certificate signed on behalf of Parent by an authorized signatory of Parent certifying the satisfaction by Parent and Merger Sub of the conditions in the Merger Agreement regarding the truth and correctness of the representations and warranties of Parent and Merger Sub contained in the Merger Agreement and the performance by Parent and Merger Sub of the covenants and agreements required to be performed by them under the Merger Agreement.

Each of Parent, Merger Sub and the Company may, to the extent permitted by applicable law, waive the conditions to the performance of its respective obligations under the Merger Agreement and complete the Merger even though one or more of these conditions have not been met. We cannot give any assurance that all of the conditions of the Merger will be either satisfied or waived or that the Merger will occur.

Termination; Termination Fees; Expenses

Termination

The Merger Agreement may be terminated by the Company and Parent at any time prior to the Effective Time, whether before or after the Company shareholder approval, by mutual written consent.

•	by Parent or the Company if:

○

○	the condition regarding the absence of legal restraints on the Merger has not been satisfied and such legal restraint giving rise to such nonsatisfaction has become final and nonappealable; provided that

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neither party may avail itself of such right to terminate the Merger Agreement if such party’s failure to comply with its obligations under the Merger Agreement to use reasonable best efforts to obtain regulatory approvals is the primary cause of any such legal restraint; or

○	the Company shareholder approval is not obtained at the Special Meeting and at which a vote on the approval of the Merger Agreement was taken, or at any adjournment of the Special Meeting;

•	by Parent if:

○	at any time prior to the receipt of the Company shareholder approval, if the Board or any committee thereof effects a change of its recommendation; or

○

•	by the Company if:

○

Termination Fees

Under the terms of the Merger Agreement, Parent must pay us a regulatory termination fee in cash equal to $164 million in the event that:

•

Parent or the Company exercises its right to terminate the Merger Agreement as a result of a failure to close by the End Date and, at the time of such termination, any of the following conditions exist: (1) any of the Required Approvals other than (A) CFIUS approval or (B) any filing with, or consent of, the FCC, (collectively, the “Termination Fee Approvals”) have not been obtained; (2) legal restraints in connection

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with the Termination Fee Approvals making illegal or prohibiting the consummation of the Merger; or (3) the Termination Fee Approvals have been obtained, but one of more of them contain a Burdensome Condition; provided that all other conditions to consummation of the Merger have been satisfied or waived (or are capable of being satisfied); or

•

Parent or the Company exercises its right to terminate the Merger Agreement as a result of the existence of legal restraints to the Merger such that the corresponding condition to consummation of the Merger has not been satisfied and such legal restraint has become final and nonappealable; provided that the applicable legal restraint giving rise to such termination arises in connection with the Termination Fee Approvals, and provided that all other conditions to consummation of the Merger have been satisfied or waived (or are capable of being satisfied).

In addition, Parent must pay us a general termination fee in cash equal to $212 million in the event that:

•

we exercise our right to terminate the Merger Agreement based on a failure of Parent to perform its covenants or agreements under the Merger Agreement pertaining to obtaining the Termination Fee Approvals and any such failure to perform has resulted in the failure of (1) the Closing condition regarding the Required Approvals or (2) the condition regarding the absence of a legal restraint; provided that all other conditions, other than (A) the conditions regarding the receipt of the Required Approvals or the absence of legal restraints, in each case, solely with respect to the Termination Fee Approvals and (B) the condition regarding the absence of a Burdensome Condition with respect to the Termination Fee Approvals have been satisfied or waived (except for those conditions that by their nature are to be satisfied at the Closing but which conditions would be satisfied or would be capable of being satisfied if the Closing Date were the date of such termination); or

•

we exercise our right to terminate the Merger Agreement based on (1) the failure of the Merger to be consummated on the day it should have been consummated under the terms of the Merger Agreement when all conditions to Closing set forth in the Merger Agreement have been satisfied or waived; (2) us having provided Parent with notice that we are willing and able to consummate the Merger on the date such notice is delivered and through the end of the next succeeding five business days; and (3) Parent and Merger Sub having failed to consummate the Merger within five business days following their receipt of written notice from us requesting such consummation.

Notwithstanding anything to the contrary set forth in the Merger Agreement, in the event that Parent must pay a regulatory termination fee or a general termination fee, Parent will have the right, at its election, to offset and reduce any such fee otherwise due and payable pursuant to the terms of the Merger Agreement, in whole or in part, on a dollar-for-dollar basis, by all or any portion of the aggregate liquidation preference of all the then-outstanding Preferred Shares held by Parent and any of its affiliates, in exchange for the redemption of the Preferred Shares associated with such offset with no obligations thereunder outstanding thereto.

Under the terms of the Merger Agreement, we must pay Parent a termination fee equal to $116 million in the event that:

•	we terminate the Merger Agreement in order to enter into an agreement relating to a Company superior proposal;

•	Parent exercises its right to terminate the Merger Agreement based on the Board having effected a change of recommendation in respect of the Merger; or

•

the Merger Agreement is terminated (1) either (A) by Parent or the Company because the Closing has not occurred by the End Date (but only if the termination fee is not also payable by Parent) or the Company shareholder approval is not obtained or (B) by Parent, if we are in breach of our representations, warranties, covenants or agreements under the Merger Agreement such that the Closing conditions related thereto cannot be satisfied and such breach is not reasonably capable of being cured by the End Date or is not cured within 30 days after our receipt of notice of breach from Parent; (2) prior to our shareholder meeting or, in the case of a failure to close by the End Date or a breach of our representations, warranties, covenants or agreements giving rise to Parent’s right to terminate, prior to such termination, a Company takeover

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proposal is made to us or our Board or is publicly disclosed and not withdrawn (and in the case of a publicly disclosed Company takeover proposal, not publicly withdrawn); and (3) within 12 months after termination of the Merger Agreement, we enter into a definitive agreement or consummate a transaction with respect to a Company takeover proposal.

Expenses

Except as described in the Merger Agreement, each party will bear its own fees, costs and expenses incurred in connection with the Merger Agreement and the transactions contemplated thereby, whether or not the Closing occurs.

Miscellaneous

Specific Performance

The parties are entitled to an injunction, specific performance or other equitable relief to prevent breaches of the Merger Agreement and to enforce specifically the terms and provisions of the Merger Agreement by petition to the Court of Chancery of the State of Delaware, the U.S. District Court for the District of Delaware or the Superior Court of the State of Delaware, as applicable, and such remedy is in addition to any other remedy to which the parties are entitled at law or in equity. The parties have agreed that each party will be entitled to seek specific performance to prevent or cure breaches of the Merger Agreement and enforce specifically the terms of the Merger Agreement, including the obligation to effect the consummation of the Merger.

Amendment

The Merger Agreement may be amended, at any time before or after receipt of the Company shareholder approval, by Parent, the Company and Merger Sub; provided, however, that (1) after approval of the Merger Agreement by our shareholders, amendments that by law require further shareholder approval or authorization may be made only with such further approval or authorization of our shareholders; (2) the Merger Agreement may not be amended after the Effective Time; (3) no amendment may require the approval of Parent’s shareholders or our shareholders, except as provided above; and (4) none of the Debt Financing provisions in the Merger Agreement may be amended in any manner materially adverse to any Debt Financing party without the written consent of such adversely affected Debt Financing party. The Merger Agreement may not be amended except by an instrument in writing signed on behalf of each of the parties.

Extension; Waiver

At any time prior to the Effective Time, any party may (1) extend the time for the performance of any of the obligations or other acts of the other parties, (2) waive any inaccuracies in the representations and warranties contained in the Merger Agreement or in any document delivered pursuant to the Merger Agreement, (3) waive compliance with any covenants and agreements contained in the Merger Agreement or (4) waive the satisfaction of any of the conditions contained in the Merger Agreement. Any agreement on the part of a party to any such extension or waiver shall be valid only if set forth in an instrument in writing signed on behalf of such party. The failure of any party to assert its rights under the Merger Agreement will not constitute a waiver of such rights.

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POST-MERGER GOVERNANCE AND MANAGEMENT

This section of this proxy statement describes the material governance and management arrangements that will apply to us upon completion of the Merger.

Governance Matters

Under the Merger Agreement, Parent and Merger Sub have agreed, among other things, that, subject to the occurrence of the Effective Time, the following commitments will be included in the initial applications submitted to the MPUC and PSCW:

•	The Company will continue to maintain the headquarters of its regulated businesses in Duluth, Minnesota and Superior, Wisconsin.

•	The name of the Company will be “ALLETE,” and the Company will keep the current name of its regulated operations business in Minnesota as “Minnesota Power” and will or will cause Superior Water, Light and Power Company to keep its current name.

•	The Company will agree (1) to appoint at least one member to the Board from each of Minnesota and Wisconsin; (2) that two members of the Board will be independent directors; and (3) the chief executive officer of the Company will be a member of the Board.

•	Capital budgets, including material variances of such budgets, will be approved by a majority of the Board.

•

•	For five years after the Closing, the Company will maintain historic levels of economic development and charitable contributions in service territories of the Company and its subsidiaries.

•

•	The Company will agree to use commercially reasonable efforts to maintain its debt/equity ratios and its corporate and facility ratings in accordance with regulatory requirements.

•

•	The Company will agree to the obligations with respect to the Company’s employees set forth in the Merger Agreement.

In addition, Parent and Merger Sub agreed that such applications to the MPUC and PSCW, and any amendments or supplements thereto, shall include any other additional agreements or commitments that the Company may deem advisable from time to time to obtain prompt approval of such applications, subject to consultation with and the consent of Parent (provided that such consent shall only be required in the case of agreements or commitments that (1) are material to the Company and its subsidiaries, taken as a whole, or to Parent or (2) materially deviate from the agreements or commitments in the applications submitted to the MPUC and the PSCW with respect to the Merger or that have been previously consented to by Parent).

Dividends

The Company paid a total of $155.5 million in cash dividends during the 12 months ended December 31, 2023. On January 26, 2024, the Board declared a quarterly cash dividend of $0.705 per share of Company Common Stock payable on March 1, 2024, to shareholders of record as of the close of business on February 15, 2024. On April 25, 2024, the Board declared a quarterly cash dividend of $0.705 per share of Company Common Stock payable on June 1, 2024, to shareholders of record as of the close of business on May 15, 2024.

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Under the terms of the Merger Agreement, we have agreed not to declare dividends, set aside or pay any dividends on, or make any other distributions (whether in cash, stock or property or any combination thereof) in respect of, any of our capital stock, other equity interests or voting securities, except for (1) quarterly cash dividends payable by us in respect of shares of Company Common Stock on a schedule consistent with our past practices in an amount not to exceed 5% per share more than the dividend payable during the prior 12-month period, (2) dividends and distributions by a direct or indirect wholly owned Company subsidiary solely to its parent, (3) dividends required under certain tax equity transaction documents and (4) a “stub period” dividend to holders of record of Company Common Stock as of immediately prior to the Effective Time equal to the product of (x) the number of days from the record date for payment of the last quarterly dividend paid by us prior to the Effective Time, multiplied by (y) a daily dividend rate determined by dividing the amount of the last quarterly dividend paid prior to the Effective Time by 91.

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PROPOSAL 2: MERGER-RELATED COMPENSATION PROPOSAL

Pursuant to Section 14A of the Exchange Act, our shareholders are being asked to approve, on an advisory (nonbinding) basis, the compensation that will or may be paid to the Company’s named executive officers in connection with the Merger as described in the section entitled “Interests of the Company’s Directors and Executive Officers in the Merger” beginning on page 61. Because the vote on the Merger-Related Compensation Proposal is advisory only, it will not be binding on the Company or Parent. Accordingly, if the Merger Proposal is approved and the Merger is completed, the Company’s named executive officers will or may be eligible to receive the compensation that is based on, or that otherwise relates to, the Merger, subject only to the conditions applicable thereto, regardless of the outcome of the vote on the Merger-Related Compensation Proposal.

Required Vote of Shareholders

The Board unanimously recommends that shareholders vote FOR the Merger-Related Compensation Proposal. If a quorum is present or represented at any Special Meeting, the affirmative vote of the holders of a majority of the voting power of the shares of Company Common Stock present or represented by proxy and entitled to vote on the Merger-Related Compensation Proposal is required to approve the Merger-Related Compensation Proposal. Accordingly, for shareholders of record who are not present or represented at the Special Meeting and for beneficial owners who fail to instruct their broker, bank or other nominee to vote on any proposal, a failure to vote will have no effect on the vote on the Merger-Related Compensation Proposal.

The vote on the Merger-Related Compensation Proposal is a vote separate and apart from the vote to approve either the Merger Proposal or any Special Meeting Adjournment Proposal, if presented. Accordingly, a Company shareholder may vote to approve the Merger-Related Compensation Proposal and vote not to approve the Merger Proposal or any Special Meeting Adjournment Proposal, if presented, and vice versa. The Company shareholder vote on the Merger-Related Compensation Proposal is an advisory vote only, and it is not binding on the Company or the Board. Accordingly, if the Merger Proposal is approved and the Merger is completed, the Company’s named executive officers will or may be eligible to receive the compensation that is based on, or that otherwise relates to, the Merger, subject only to the conditions applicable thereto, regardless of the outcome of the vote on the Merger-Related Compensation Proposal.

The Board unanimously recommends that you vote FOR the Merger-Related Compensation Proposal.

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PROPOSAL 3: SPECIAL MEETING ADJOURNMENT PROPOSAL

Our shareholders are being asked to approve a proposal, if presented, which will give our Board authority to adjourn the Special Meeting, including to solicit additional proxies in favor of the Merger Proposal if there are insufficient votes at the time of the Special Meeting to approve the Merger Proposal or in the absence of a quorum. If a Special Meeting Adjournment Proposal is presented and approved, the Special Meeting could be postponed to any date (so long as we receive Parent’s prior written consent in certain circumstances). In addition, the Board could postpone the Special Meeting before it commences. If the Special Meeting is adjourned for the purpose of soliciting additional proxies, shareholders who have already submitted their proxies will be able to revoke them at any time before the final vote.

We do not anticipate calling a vote on this proposal if a quorum is present and the Merger Proposal is approved by at least a majority of the shares of Company Common Stock outstanding as of the close of business on the Record Date.

Required Vote of Shareholders

The Board unanimously recommends that shareholders vote FOR any Special Meeting Adjournment Proposal, if a vote on such proposal is called. If a vote on any Special Meeting Adjournment Proposal is called, the affirmative vote of the holders of a majority of the voting power of the shares of Company Common Stock present or represented by proxy and entitled to vote on such Special Meeting Adjournment Proposal is required to approve such Special Meeting Adjournment Proposal. Accordingly, for shareholders of record who are not present or represented at the Special Meeting and for beneficial owners who fail to instruct their broker, bank or other nominee to vote on any proposal, a failure to vote will have no effect on the vote on such Special Meeting Adjournment Proposal.

The vote on any Special Meeting Adjournment Proposal is a vote separate and apart from the vote to approve either the Merger Proposal or the Merger-Related Compensation Proposal. Accordingly, a Company shareholder may vote to approve any Special Meeting Adjournment Proposal and vote not to approve the Merger Proposal or the Merger-Related Compensation Proposal, and vice versa.

The Board unanimously recommends that you vote FOR any Special Meeting Adjournment Proposal, if a vote on such proposal is called.

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MARKET PRICE OF THE COMPANY COMMON STOCK AND DIVIDEND INFORMATION

Shares of Company Common Stock are listed for trading on the NYSE under the symbol “ALE.” As of the close of business on Record Date, there were [•] shares of Company Common Stock outstanding.

The closing price of shares of Company Common Stock on May 2, 2024, which was the last trading day prior to the publication of the May 2, 2024, market rumors regarding a potential acquisition of the Company, was $60.84 per share. The Merger Consideration represents a 10% premium to such closing price. On June 18, 2024, the most recent practicable date before the filing of this proxy statement, the closing price for the Company Common Stock was $62.91 per share. The closing price of shares of Company Common Stock on December 4, 2023, the last trading day prior to the initial publication of market rumors regarding a potential acquisition of the Company, was $56.25 per share. The Merger Consideration represents a 19% premium to such closing price. You are encouraged to obtain current market quotations for the Company Common Stock prior to making any decision with respect to the Merger.

The Company paid a total of $155.5 million in cash dividends during the 12 months ended December 31, 2023. On January 26, 2024, the Board declared a quarterly cash dividend of $0.705 per share payable on March 1, 2024, to shareholders of record as of the close of business on February 15, 2024. On April 25, 2024, the Board declared a quarterly cash dividend of $0.705 per share of Company Common Stock payable on June 1, 2024, to shareholders of record as of the close of business on May 15, 2024.

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SECURITY OWNERSHIP OF CERTAIN BENEFICIAL OWNERS AND MANAGEMENT

The following table sets forth, as of June 12, 2024 (except as indicated in the footnotes to the table), certain information regarding ownership of Company Common Stock by (1) each person known to the Company to own beneficially more than 5% of Company Common Stock, (2) each of the current directors, (3) each of the named executive officers and (4) all directors and current executive officers of the Company as a group.

The percent of class is based upon 57,751,936 shares of Company Common Stock outstanding as of June 12, 2024. Beneficial ownership is determined in accordance with the rules of the SEC and does not necessarily indicate beneficial ownership for any other purpose. Under these rules, beneficial ownership includes those shares of Company Common Stock over which the shareholder has sole or shared voting or investment power. It also includes shares of Company Common Stock that the shareholder has a right to acquire within 60 days after June 12, 2024. Except as otherwise indicated, the persons or entities shown below have sole voting and investment power over the corresponding Company Common Stock listed.

Name of Individuals or Identity of Group	Amount and Nature of Beneficial Ownership⁽¹⁾	Percent of Class
BlackRock, Inc. 55 East 52nd Street New York, New York 10055	7,786,833⁽²⁾	13.48%*
The Vanguard Group, Inc. 100 Vanguard Blvd. Malvern, Pennsylvania 19355	6,579,504⁽³⁾	11.39%*
George G. Goldfarb	6,580	**
James J. Hoolihan	16,326	**
Madeleine W. Ludlow	19,093	**
Charles R. Matthews	647	**
Susan K. Nestegard	686	**
Douglas C. Neve	11,593	**
Barbara A. Nick	11,425	**
Robert P. Powers	664	**
Charlene A. Thomas	6,620	**
Bethany M. Owen	27,470	**
Steven W. Morris	10,940	**
Margaret A. Thickens⁽⁴⁾	5,764	**
Nicole R. Johnson	10,974	**
Joshua J. Skelton	13,676	**
All directors and current executive officers as a group (15 persons)	145,958	**

*	Actual percentage may differ due to stock transactions made subsequent to beneficial owner’s filing date.

**	Less than 1%.

(1)

(2)

The information shown, including the aggregate number of shares beneficially owned, comes from information filed with the SEC on Schedule 13G/A on January 23, 2024. The information reflects the number of shares of Company Common Stock beneficially owned by BlackRock, Inc. and certain of its subsidiaries as of December 31, 2023.

(3)

The information shown, including the number of shares beneficially owned, comes from information filed with the SEC on Schedule 13G/A on February 13, 2024. The information reflects the number of shares of Company Common Stock beneficially owned by The Vanguard Group and certain of its subsidiaries as of December 29, 2023.

(4)	Ms. Thickens, who was a named executive officer in the Company’s most recent definitive proxy statement filed on March 28, 2024, retired, effective May 31, 2024.

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DISSENTERS’ RIGHTS

The following is a summary of certain material terms of Sections 302A.471 and 302A.473 of the MBCA. The summary is not complete and must be read together with the actual statutory provisions, which sections are reproduced in their entirety as Annex D to this proxy statement. The Company encourages you to read Sections 302A.471 and 302A.473 of the MBCA carefully and in their respective entirety because the rights and obligations of the Company and its shareholders are governed by the express terms of these statutory provisions and other applicable law, and not by this summary or any other information contained in this proxy statement. This summary may not contain all the information about these statutory provisions that is important to you.

Applicability

As a Minnesota corporation, the Company is governed by the MBCA. The MBCA provides a shareholder with the right to dissent from the Merger and instead obtain payment for the “fair value” of such shareholder’s shares of Company Common Stock. This right is set forth in Sections 302A.471 and 302A.473 of the MBCA.

This proxy statement constitutes the Company’s notice to its shareholders of the availability of dissenters’ rights in connection with the Merger in compliance with the requirements of Section 302.473, subdivision 2 of the MBCA.

Exercising Dissenters’ Rights

Any Company shareholder contemplating an attempt to assert and exercise dissenters’ rights in connection with the Merger should review carefully the provisions of Sections 302A.471 and 302A.473 of the MBCA (which sections are reproduced in their entirety as Annex D to this proxy statement), particularly the specific procedural steps required to perfect such rights. Dissenters’ rights are lost if the procedural requirements of Section 302A.473 of the MBCA are not fully and precisely satisfied.

In view of the complexity of these statutory provisions, any shareholders who may wish to pursue dissenters’ rights should consult their legal advisors.

Filing Initial Notice of Dissent before the Special Meeting

Under Section 302A.473, subdivision 3 of the MBCA, a Dissenter must file with the Company, before the vote on the Merger, a written notice of intent to demand the “fair value” of shares of Company Common Stock owned by such shareholder.

The written notice of intent should be sent to the attention of the Corporate Secretary of the Company at 30 West Superior Street, Duluth, Minnesota 55802-2093.

To be effective, the notice must be filed with the Company before the vote on the Merger. In addition, the shareholder must not vote their shares in favor of the Merger Proposal. A vote against the Merger does not in itself constitute a notice of a shareholder’s intent to demand fair value and a failure to vote does not affect the validity of a timely written notice. However, the submission of a properly signed blank proxy will constitute a vote in favor of the Merger Proposal and a waiver of statutory dissenters’ rights.

Under Section 302A.471, subdivision 2 of the MBCA, beneficial owners of shares of Company Common Stock who desire to exercise statutory dissenters’ rights must obtain and submit the registered owner’s written consent at or before the time the notice of intent to demand fair value is due. If you are a beneficial owner of shares of Company Common Stock held through a broker, bank or other nominee and you wish to exercise dissenters’ rights, you should timely consult with your broker, bank or other nominee to determine the appropriate procedures for obtaining such written consent or otherwise complying with these provisions.

Under Section 302A.471, subdivision 2 of the MBCA, a shareholder may not assert dissenters’ rights as to less than all of the shares of Company Common Stock registered in the name of such shareholder, unless the shareholder dissents with respect to all the shares of Company Common Stock that are beneficially owned by another person but registered in the name of such shareholder and discloses the name and address of each beneficial owner on whose behalf the shareholder dissents. In that event, the rights of the dissenting shareholder will be determined as if the shares of Company Common Stock as to which the shareholder has dissented and the other shares of Company Common Stock were registered in the names of different shareholders.

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Notice of Procedure from the Company after Shareholder Approval

If the Merger is approved by the Company’s shareholders, the Company will send to all Dissenters a notice (a “Notice of Procedure”) containing certain information required by Section 302A.473, subdivision 4 of the MBCA, including the address to which a Dissenter must send a demand for payment and certificates representing Dissenting Shares in order to obtain payment for Dissenting Shares and the date by which they must be received, any restrictions on transfer of uncertificated Dissenting Shares that will apply and a form to be used to certify the date on which the Dissenter (or the beneficial owner on whose behalf the Dissenter dissents) acquired such Dissenting Shares (or an interest in them) and to demand payment.

Demand for Payment and Deposit of Shares

In order to receive the fair value of the shares under Section 302A.473 of the MBCA, a Dissenter must demand payment and deposit certificates representing certificated shares or comply with any restrictions on transfer of uncertificated shares within 30 days after the Notice of Procedure is given. Under Minnesota law, notice by mail is given by a corporation when deposited in the U.S. mail. A Dissenter who fails to timely make demand for payment and deposit certificates (or comply with any restrictions on transfer of uncertificated shares) as required by Section 302A.473, subdivision 4 of the MBCA, loses the right to receive the fair value of such Dissenting Shares even if such Dissenter timely filed a notice of intent to demand payment under Section 302A.473, subdivision 3 of the MBCA and such Dissenting Shares will be deemed to be converted as of the Effective Time into, and to have become exchangeable solely for the right to receive, the Merger Consideration.

Determination and Payment of “Fair Value”

Except as provided below, if a valid demand for payment by a Dissenter is made, then after the Company’s receipt of such demand or the Effective Time, whichever is later, the Company must pay the Dissenter an amount which the Company estimates to be the fair value of the Dissenting Shares, plus interest. The Company will include a brief description of the method used to reach our estimate of fair value. For the purpose of a Dissenter’s rights under Sections 302A.471 and 302A.473 of the MBCA, “fair value” means the value of the shares of stock immediately before the Effective Time. It is possible that the fair value of shares of Company Common Stock as determined pursuant to the dissenters’ rights procedures may be determined to be less than the Merger Consideration. Additionally, “interest” means interest commencing five days after the effective date of such merger until the date of payment, calculated at the rate provided in Minnesota Statutes Section 549.09, subdivision 1, paragraph (c), clause (1), which is currently 5% simple interest per annum.

If a Dissenter believes this payment by the Company is less than the fair value of the Dissenting Shares, plus interest, such Dissenter must give written notice to the Company of the Dissenter’s own estimate of the fair value of the Dissenting Shares, plus interest, within 30 days after the date the Company mails the payment, and must demand payment of the difference between the Dissenter’s own estimate and the Company’s payment. If such Dissenter fails to give written notice of such estimate to the Company or fails to demand payment of the difference, within the 30-day time period, such Dissenter is entitled only to the amount of the Company’s payment.

The Company may withhold such payment with respect to Dissenting Shares for which a Dissenter demanding payment (or persons on whose behalf such Dissenter acts) was not the beneficial owner as of the first public announcement date of the Merger Agreement, which is May 6, 2024. As to each such Dissenter who has validly demanded payment, following the Effective Time or the receipt of demand, whichever is later, the Company must mail its estimate of the fair value of such Dissenter’s Dissenting Shares and a statement of the reason for withholding the payment, and offer to pay this amount, plus interest, to the Dissenter upon receipt of such Dissenter’s agreement to accept this amount in full satisfaction. The Dissenter may decline the Company’s offer and give written notice to the Company of such Dissenter’s own estimate of the fair value of the shares of stock, plus interest, and demand payment of this amount. This demand must be mailed to the Company within 30 days after the mailing of the Company’s offer. If the Dissenter fails to make this demand within the 30-day time period, such Dissenter is entitled only to the amount the Company offered.

If the Company receives a demand from a Dissenter (including a Dissenter who held shares of Company Common Stock on May 6, 2024, and a Dissenter who purchased shares of Company Common Stock after that date who has complied with the applicable demand requirements) for a supplemental payment, the Company must, within 60 days after receiving the demand, either pay to the Dissenter the amount demanded or agreed to by the Dissenter after discussion with the Company or file in court a petition requesting that the court determine the fair value of the

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Dissenting Shares, plus interest. The petition must be filed in the county in which our registered office is located, which is St Louis County, Minnesota. Our registered office is subject to change at any time. All Dissenters whose demands are not resolved within the applicable 60-day period must be made parties to this proceeding.

The court will then determine whether each Dissenter in question has fully complied with the provisions of Sections 302A.471 and 302A.473 of the MBCA, and for all Dissenters who have fully complied and not forfeited statutory dissenters’ rights, will determine the fair value of the Dissenting Shares, taking into account any and all factors the court finds relevant (including, without limitation, the recommendation of any appraisers that may have been appointed by the court), computed by any method that the court, in its discretion, sees fit to use, whether or not used by the Company or a Dissenter. The fair value of the Dissenting Shares as determined by the court is binding on all Dissenters. However, by statute, Dissenters are not liable to the Company for the amount, if any, by which payments remitted to the Dissenters exceed the fair value of such Dissenting Shares determined by a court, plus interest. The costs and expenses of such a court proceeding are assessed against the Company, except that the court may assess part or all of those costs and expenses against a Dissenter whose action in demanding payment is found to be arbitrary, vexatious or not in good faith.

Limitation of Other Rights

Under Section 302A.471, subdivision 4 of the MBCA, a shareholder has no right at law or in equity to have the Merger set aside or rescinded, except if the Merger is fraudulent with respect to such shareholder or the Company.

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FUTURE SHAREHOLDER PROPOSALS

If the Merger is completed, we will have no public shareholders and there will be no public participation in any future meetings of shareholders of the Company. However, if the Merger is not completed, shareholders will continue to be entitled to attend and participate in shareholder meetings.

If we hold our 2025 annual meeting of shareholders and you are a shareholder on the applicable record date, you will be entitled to attend and participate in such meeting. If the Company’s 2025 annual meeting is held, shareholder proposals will be eligible for consideration for inclusion in the proxy statement and form of proxy for the Company’s 2025 annual meeting in accordance with Rule 14a-8 under the Exchange Act and our bylaws, as described below.

All proposals from shareholders to be considered for inclusion in the proxy statement relating to the 2025 annual meeting which, if it is held, will be scheduled for May 13, 2025, must be received by the Corporate Secretary of the Company at 30 West Superior Street, Duluth, Minnesota 55802-2093 not later than November 28, 2024. The Company’s bylaws provide that for business to be properly brought before an annual meeting by a shareholder, the shareholder must have delivered timely notice to the Company’s Corporate Secretary. To be timely, advance notice for business to be brought before an annual meeting generally must be received not less than 90 days nor more than 120 days prior to the anniversary of the immediately preceding annual meeting. Therefore, for the 2025 annual meeting, the Company must receive a shareholder’s notice between January 14, 2025, and February 13, 2025. A shareholder’s notice must also comply with the informational and other requirements set forth in the Company’s bylaws. In addition to the information and other requirements in the Company’s bylaws, as noted in the prior sentence, to comply with the universal proxy rules, shareholders who intend to solicit proxies in support of director nominees other than the Company’s nominees must provide notice that sets forth the information required by Rule 14a-19 under the Exchange Act no later than March 15, 2025. The persons to be named as proxies in the proxy card relating to the 2025 annual meeting may have the discretion to vote their proxies in accordance with their judgment on any matter as to which the Company did not have notice in accordance with the advance notice provisions in the Company’s bylaws, without discussion of such matter in the proxy statement relating to the 2025 annual meeting.

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HOUSEHOLDING OF PROXY MATERIALS

If you have consented to the delivery of only one notice of meeting or set of proxy materials, as applicable, to multiple Company shareholders who share your address, then only one notice of meeting or set of proxy materials, as applicable, is being delivered to your household unless we have received contrary instructions from one or more of the shareholders sharing your address. We will deliver promptly upon oral or written request a separate copy of the notice of meeting or set of proxy materials, as applicable, to any shareholder at your address.

If you wish to receive a separate copy of the proxy materials, as applicable, you may request delivery by calling the Company’s Shareholder Services at (218) 355-3114, or by writing to the Company’s transfer agent, Equiniti Trust Company, Shareowner Services, Attention: Householding, P.O. Box 64854, St. Paul, Minnesota 55164-0854. Shareholders sharing an address who now receive multiple copies of the notice of meeting or set of proxy materials, as applicable, may request delivery of a single copy by calling us at the above number or writing to us at the above address.

Regardless of how you own your shares, if you received a single set of proxy materials as a result of householding, and one or more shareholders at your address would like to have separate copies of these materials with respect to the Special Meeting, please contact the Company’s transfer agent, Equiniti Trust Company, using the following contact information:

Equiniti Trust Company

Shareowner Services

Attention: Householding

P.O. Box 64854

St. Paul, Minnesota 55164-0854

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OTHER MATTERS

As of the date of this proxy statement, we do not expect a vote to be taken on any matters at the Special Meeting other than as described in this proxy statement. A properly executed proxy gives the persons named as proxies on the proxy card authority to vote in their discretion with respect to any other matters that properly come before the Special Meeting.

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WHERE YOU CAN FIND MORE INFORMATION

We file annual, quarterly and current reports, proxy statements and other information with the SEC. Our SEC filings also are available to the public from commercial document retrieval services and at the Internet website maintained by the SEC at www.sec.gov.

The SEC allows us to “incorporate by reference” information into this proxy statement, which means that we can disclose important information to you by referring you to another document filed separately with the SEC. The information incorporated by reference is deemed to be part of this proxy statement, except for any information superseded by information in, or incorporated by reference in, this proxy statement. This proxy statement incorporates by reference the documents listed below that we have previously filed with the SEC (other than, in each case, documents or information deemed to have been furnished and not filed in connection with SEC rules). These documents contain important information about the Company and its financial position.

The following Company filings with the SEC are incorporated by reference:

•	our Annual Report on Form 10-K for the fiscal year ended December 31, 2023, filed on February 20, 2024;

•	our Quarterly Report on Form 10-Q for the quarter ended March 31, 2024, filed on May 9, 2024; and

•	our Current Reports on Form 8-K filed on March 20, 2024, May 6, 2024, and May 20, 2024.

We are also incorporating by reference additional documents that we file with the SEC under Section 13(a), 13(c), 14 or 15(d) of the Exchange Act between the date of this proxy statement and the date of the Special Meeting (other than, in each case, documents or information deemed to have been furnished and not filed in connection with SEC rules). These documents include periodic reports, such as Annual Reports on Form 10-K and Quarterly Reports on Form 10-Q, as well as Current Reports on Form 8-K and proxy soliciting materials. The information provided on the Company’s website is not part of this proxy statement and therefore is not incorporated by reference into this proxy statement. We also incorporate by reference the Merger Agreement attached to this proxy statement as Annex A, the opinion of J.P. Morgan Securities LLC, attached to this proxy statement as Annex B, the opinion of Houlihan Lokey Capital, attached to this proxy statement as Annex C and Sections 302A.471 and 302A.473 of the MBCA, which sections are reproduced in their entirety and attached to this proxy statement as Annex D.

You may obtain any of the documents the Company files with the SEC, without charge, by requesting them in writing or by telephone from us at the following address:

ALLETE, Inc.

Attn: Shareholder Services

30 West Superior Street

Duluth, Minnesota 55802

(218) 355-3114

If you would like to request documents from the Company, please do so as soon as possible to receive them before the Special Meeting.

If you have any questions concerning the Merger, the Special Meeting or this proxy statement or need help voting your shares of Company Common Stock, please contact the Company’s proxy solicitor:

Georgeson

1290 Avenue of the Americas, 9th Floor

New York, New York 10104

allete@georgeson.com

Call Toll Free:

866-529-0639

All information contained in this proxy statement relating to the Company has been supplied by the Company and all information contained in this proxy statement relating to Parent and Merger Sub has been supplied by Parent.

You should rely only on the information contained in this proxy statement, the annexes to this proxy statement and the documents referred to in this proxy statement to vote on the Merger. The Company has not authorized anyone to provide you with information that is different from what is contained in this proxy statement. This proxy statement is dated [•], 2024. You should not assume that the information contained in this proxy statement is accurate as of any date other than that date (or as of an earlier date, if so indicated in this proxy statement), and the mailing of this proxy statement to shareholders does not create any implication to the contrary. This proxy statement does not constitute a solicitation of a proxy in any jurisdiction where, or to or from any person to whom, it is unlawful to make a proxy solicitation.

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	Proposed Maximum Aggregate Value of Transaction	Fee Rate	Amount of Filing Fee

Fees to be Paid	$3,899,789,605⁽¹⁾⁽²⁾	0.00014760	$575,608.95⁽³⁾

Fees Previously Paid	$0		$0

Total Transaction Valuation	$3,899,789,605

Total Fees Due for Filing			$575,608.95

Total Fees Previously Paid			$0

Total Fee Offsets			$0

Net Fee Due			$575,608.95

(2) Per unit price or other underlying value of transaction computed pursuant to Rule 0-11 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”) (set forth the amount on which the filing fee is calculated and state how it was determined):