UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

SCHEDULE TO

TENDER OFFER STATEMENT UNDER SECTION 14(d)(1) OR 13(e)(1)

OF THE SECURITIES EXCHANGE ACT OF 1934

Amendment No. 10

CASCADE CORPORATION

(Name of Subject Company (Issuer))

INDUSTRIAL COMPONENTS AND ATTACHMENTS II, INC.

(Offeror)

An Indirect Wholly-Owned Subsidiary of

TOYOTA INDUSTRIES CORPORATION

(Offeror)

(Names of Filing Persons (identifying status as offeror, issuer or other person))

COMMON STOCK, PAR VALUE $.50 PER SHARE

(Title of Class of Securities)

147195101

(CUSIP Number of Class of Securities)

Hirotoshi Nakamura

Group Manager International Legal Affairs Group Legal Department

Toyota Industries Corporation

2-1, Toyoda-cho, Kariya-shi

Aichi 448-8671, Japan

+81-(0)###-##-####

(Name, address, and telephone numbers of person authorized to receive notices and communications on behalf of filing persons)

Copies to:

John M. Reiss

David M. Johansen

White & Case LLP

1155 Avenue of the Americas

New York, New York 10036

(212) 819-8200

CALCULATION OF FILING FEE

Check the appropriate boxes below to designate any transactions to which the statement relates:

Check the following box if the filing is a final amendment reporting the results of the tender offer.  x

If applicable, check the appropriate box(es) below to designate the appropriate rule provisions) relied upon:

This Amendment No. 10 to the Tender Offer Statement on Schedule TO (the “Schedule TO”) amends and supplements the Schedule TO relating to the tender offer by Industrial Components and Attachments II, Inc., a Delaware corporation (“Purchaser”) and an indirect wholly-owned subsidiary of Toyota Industries Corporation, a corporation formed under the laws of Japan (“Parent”), for all of the outstanding shares of common stock, par value $.50 per share (the “Shares”), of Cascade Corporation, an Oregon corporation (the “Company”), at a price of $65.00 per Share net to the seller in cash without interest and less any applicable withholding taxes, upon the terms and conditions set forth in the offer to purchase dated November 2, 2012 (the “Offer to Purchase”), a copy of which is attached as Exhibit (a)(1)(A), and in the related letter of transmittal (the “Letter of Transmittal”), a copy of which is attached as Exhibit (a)(1)(B), which, together with any amendments or supplements thereto, collectively constitute the “Offer Documents.”

All information set forth in the Offer Documents is incorporated by reference herein in response to Items 1 through 9 and to Item 11 in this Schedule TO and is supplemented by the information specifically provided in this Amendment No. 10.

Capitalized terms used but not defined herein have the meanings assigned to such terms in the Offer to Purchase.

This Amendment No. 10 is being filed to amend and supplement Items 1, 4, 8, 11 and 12 as reflected below.

Item 11

(a) Agreements, Regulatory Requirements and Legal Proceedings. Item 11(a) of the Schedule TO is hereby amended and supplemented by replacing the second paragraph in the sub-section captioned “United States Antitrust Compliance” in Section 16 (Certain Legal Matters; Regulatory Approvals) of the Offer to Purchase with the following paragraph.

“Pursuant to the requirements of the HSR Act, Parent filed a Premerger Notification and Report Form with the FTC and the Antitrust Division in connection with the purchase of the Shares in the Offer and the Merger on October 31, 2012. The Company filed a Premerger Notification and Report Form with the FTC and the Antitrust Division on November 2, 2012. On November 15, 2012, Parent voluntarily withdrew its notification and re-filed the notification on November 19, 2012. On November 30, 2012, Parent again voluntarily withdrew its notification and re-filed the notification on December 5, 2012. The Company re-filed its Premerger Notification and Report Form with the FTC and the Antitrust Division on December 6, 2012. On December 20, 2012, Parent received from the Antitrust Division a Request for Additional Information and Documentary Material (the “Second Request”) under the HSR Act with respect to the Offer and the Merger. On February 12, 2013, Parent provided a timing commitment to the Antitrust Division pursuant to which Parent informed the Antitrust Division of Parent’s intention to certify substantial compliance with the Second Request on February 15, 2013 and committed (i) not to consummate the Offer and the Merger prior to 30 days thereafter without the consent of the Antitrust Division, and (ii) to provide at least 10-day notice to the Antitrust Division prior to consummating the Offer and

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the Merger. On February 15, 2013, Parent certified to the Antitrust Division that it had substantially complied with the Second Request. On March 4, 2013, Parent provided a revised timing commitment to the Antitrust Division pursuant to which Parent committed (i) to extend the date prior to which Parent will not consummate the Offer and the Merger without the consent of the Antitrust Division to 40 days after February 15, 2013, and (ii) to provide at least 10-day notice to the Antitrust Division prior to consummating the Offer and the Merger. On March 17, 2013, Parent provided notice to the Antitrust Division of its intention to consummate the Offer and the Merger on or after March 27, 2013. At 11:59 PM New York City time, on Tuesday, March 26, 2013, the waiting period applicable to the Offer and the Merger under the HSR Act expired. On March 27, 2013, the Antitrust Division notified Parent and the Company that it had decided to close its investigation of the purchase of the Shares and the Merger. Accordingly, the condition of the Offer relating to the expiration or termination of the HSR Act waiting period has been satisfied. On March 28, 2013, Parent issued a press release announcing the expiration of the HSR Act waiting period, a copy of which is filed as Exhibit (a)(14) hereto.”

Items 1, 4, 8 and 11

Items 1, 4, 8 and 11 of the Schedule TO are hereby amended and supplemented by adding the following text thereto:

“The Offer and withdrawal rights expired at 12:00 midnight, New York City time, on Wednesday, March 27, 2013. The Depositary has advised us that 10,276,861 Shares were validly tendered and not properly withdrawn (including 491,605 Shares tendered pursuant to notices of guaranteed delivery), representing approximately 91.8% of the outstanding Shares. Therefore, the Minimum Condition has been satisfied. All Shares that were validly tendered and not properly withdrawn have been accepted for payment in accordance with the terms of the Offer.

Pursuant to the Merger Agreement, Purchaser intends to exercise the Top-Up Option, pursuant to which the Company shall issue Shares to Purchaser, at a price per Share equal to the Offer Price, in an amount sufficient to ensure that Purchaser and Parent can effect a “short-form” merger pursuant to applicable laws of the state of Oregon and the state of Delaware.

As a result of the purchase of Shares in the Offer and the issuance of Shares pursuant to exercise of the Top-Up Option, Purchaser and Parent will own a sufficient number of Shares for Purchaser to approve the Merger without the approval of the other shareholders of the Company. Accordingly, Purchaser and Parent intend to effect a “short- form” merger in which Purchaser is merged with and into the Company, with the Company surviving the Merger and continuing as an indirect wholly-owned subsidiary of Parent. In the Merger, each Share issued and outstanding immediately prior to the effective time of the Merger, other than Shares owned by Parent, Purchaser, or the Company (or any of their respective subsidiaries) immediately prior to the effective time of the Merger, will automatically be converted into the right to receive the Offer Price in cash, without interest and less any applicable withholding taxes. All Shares converted into the right to receive the Offer Price shall be cancelled and cease to exist. In addition, upon completion of the Merger, the common stock of the Company will cease to be traded on the NYSE.

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On March 28, 2012, Parent issued a press release announcing the expiration and results of the Offer. The full text of the press release is attached hereto as Exhibit (a)(14) and is incorporated herein by reference.”

Item 12

Item 12 of the Schedule TO is amended and supplemented by adding the following exhibit:

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SIGNATURE

After due inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.

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EXHIBIT INDEX

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Exhibit (a)(14)

Toyota Industries Corporation Announces Successful Completion of Cash Tender Offer for Shares of Cascade Corporation

March 28, 2013, Kariya, Japan – Toyota Industries Corporation (Tokyo Stock Exchange: 6201) (“TICO”) today announced the successful completion of the tender offer by Industrial Components and Attachments II, Inc., an indirect wholly owned subsidiary of TICO, for all outstanding common shares of Cascade Corporation (NYSE: CASC) (“Cascade”) for $65.00 per share (the “Offer”). The Offer expired at 12:00 midnight, New York City time, on Wednesday, March 27, 2013. Based on preliminary information provided by the depositary, as of the expiration of the Offer, 10,276,861 shares of common stock of Cascade were validly tendered and not properly withdrawn (including 491,605 shares tendered pursuant to notices of guaranteed delivery), representing approximately 91.8% of the outstanding shares. All of such shares have been accepted for payment in accordance with the terms of the Offer.

The waiting period applicable to the Offer and the transaction under the Hart-Scott-Rodino Antitrust Improvements Act of 1976, as amended (the “HSR Act”), expired on March 26, 2013. On March 27, 2013, the Antitrust Division notified TICO and Cascade that it had decided to close its investigation of the purchase of the shares and the merger. Accordingly, the condition of the Offer relating to the expiration or termination of the HSR Act waiting period was satisfied.

TICO, together with its subsidiaries, intends to make prompt payment for the shares of common stock of Cascade validly tendered in the Offer. TICO will then purchase additional shares from Cascade pursuant to the merger agreement and complete and close the merger and acquisition of Cascade without the approval of Cascade’s remaining shareholders. All outstanding shares of common stock of Cascade, other than shares owned by TICO, Purchaser or Cascade (or any of their respective subsidiaries), will be canceled and converted into the right to receive cash equal to the $65.00 offer price per share without interest thereon and less any applicable withholding taxes. In addition, upon consummation of the merger, the common stock of Cascade will cease to be traded on the New York Stock Exchange.

Upon consummation of the merger, Cascade will become an indirect wholly owned subsidiary of TICO. While wholly owned, Cascade will continue to be based in Fairview, Oregon and will operate as an independent subsidiary of TICO. Cascade’s strict policies on confidentiality regarding competitive information will remain unchanged. TICO recognizes and respects the importance of this policy to customers and to the continued success of the business.

Nomura Securities is serving as exclusive financial advisor to TICO and White & Case LLP is serving as TICO’s legal advisor in connection with the transaction. BofA Merrill Lynch is serving as exclusive financial advisor to Cascade, and Miller Nash LLP is serving as Cascade’s legal advisor.

Contacts

Toyota Industries Corporation:

TICO

Takashi Yoshida, Manager, PR Department

+81 ###-##-####

Brunswick Group

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Sarah Lubman / Christina Stenson

+1 (212) 333-3810

Cascade Corporation:

Joseph G. Pointer, Chief Financial Officer

+1 (503) 669-6300

About Toyota Industries Corporation

Toyota Industries Corporation is a leading transportation equipment company engaged primarily in the manufacture and sale of automobiles, materials handling equipment and textile machinery, as well as in the logistics business in Japan and internationally. Toyota Industries Corporation’s common stock is listed on the Tokyo Stock Exchange where it trades under the symbol “6201”. For more information about Toyota Industries Corporation, please visit www.toyota-industries.com.

About Cascade Corporation

Cascade Corporation is one of the world’s leading manufacturers of materials handling load engagement devices and related replacement parts, primarily for the lift truck industry and to a lesser extent, the construction industry. Cascade Corporation’s common stock is listed on the New York Stock Exchange where it trades under the symbol “CASC”. For more information about Cascade Corporation, please visit www.cascorp.com.

Forward-Looking Statements

This press release contains forward-looking statements within the meaning of the U.S. federal securities laws. These forward-looking statements include, but are not limited to, statements as to the proposed acquisition of Cascade Corporation by Toyota Industries Corporation, the expected timetable for completing the transaction, expected long-term growth for the combined company, plans for geographic expansion in the global marketplace and any other statements about Toyota Industries Corporation or Cascade Corporation’s managements’ future expectations, beliefs, goals, plans or prospects. Any statements that are not statements of historical fact (including any statements containing the words “believes,” “plans,” “anticipates,” “expects,” “estimates,” and similar expressions) should also be considered forward-looking statements. Readers are cautioned that all forward-looking statements are based on current expectations and involve risks and uncertainties and a number of factors could cause our actual results to differ materially from any results indicated in this release or in any other forward-looking statements made by us, or on our behalf. Factors that could cause actual results to differ from these forward-looking statements include, but are not limited to, the possibility that certain conditions to the merger and to completion of the transactions will not be met, the possibility that competing offers may be made, conditions affecting the industries in which Toyota Industries Corporation or Cascade Corporation operate may change. The forward-looking statements contained in this release speak only as of the date on which they are made and, except as required by law, Toyota Industries Corporation expresses no intention or undertake no obligation to update any forward-looking statements to reflect events or circumstances after the date of this press release and as a result, no undue reliance should be placed on these forward-looking statements.

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