8-K

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549

FORM 8-K

CURRENT REPORT

PURSUANT TO SECTION 13 OR 15(d) OF THE

SECURITIES EXCHANGE ACT OF 1934

July 30, 2012

(Date of earliest event reported)

MEDTOX SCIENTIFIC, INC.

(Exact Name of Registrant as Specified in its Charter)

DELAWARE	1-11394	95-3863205
(State or other jurisdiction of Incorporation)	(Commission File Number)	(I.R.S. Employer Identification No.)

402 West County Road D St. Paul, Minnesota	55112
(Address of principal executive offices)	(Zip Code)

(651) 636-7466

(Registrant’s telephone number including area code)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

¨ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

¨ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

¨ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

¨ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Item 1.02 Termination of a Material Definitive Agreement.

In connection with the Merger (as defined below), on July 30, 2012, MEDTOX Scientific, Inc. (the “Company”) terminated its credit security agreement (the “Credit Agreement”) with Wells Fargo Bank, N.A. that provided a revolving line of credit of up to $12.0 million. Prior to the Merger and as of July 30, 2012, there were no outstanding amounts owed under the Credit Agreement.

Item 2.01 Completion of Acquisition or Disposition of Assets.

On July 31, 2012, the Company completed the Merger (as defined below) contemplated by the previously announced Agreement and Plan of Merger, dated June 3, 2012(the “Merger Agreement”) among the Company, Laboratory Corporation of America Holdings (“LabCorp”) and Mercer Acquisition Corp., a wholly owned subsidiary of LabCorp (“Merger Sub”). Pursuant to the Merger Agreement, LabCorp acquired the Company through a merger of Merger Sub with and into the Company (the “Merger”), with the Company continuing as the surviving corporation and a wholly owned subsidiary of LabCorp. The Merger became effective at 10:55 AM on July 31, 2012 upon acceptance of the filing of the certificate of merger by the Secretary of State of the State of Delaware.

At the Effective Time (as defined in the Merger Agreement) of the Merger, each outstanding share of the Company’s common stock, par value $0.15 per share (except for certain shares owned, if any, by the Company, LabCorp, Merger Sub and their wholly owned subsidiaries or shares owned by stockholders who properly exercised their appraisal rights) (the “Shares”) was converted into the right to receive $27.00 per Share in cash, without interest and less any applicable tax withholding, for a total transaction value of approximately $243 million.

The foregoing description of the Merger and the Merger Agreement does not purport to be complete and is qualified in its entirety by reference to the full text of the Merger Agreement, which was filed with the Securities and Exchange Commission (“SEC”) as Exhibit 2.1 to the Company’s Current Report on Form 8-K on June 4, 2012, and which is incorporated herein by reference.

Item 3.01 Notice of Delisting or Failure to Satisfy a Continued Listing Rule or Standard; Transfer of Listing.

In connection with the Merger, on July 31, 2012, the Company notified the NASDAQ Stock Market (“NASDAQ”) that the Merger had been completed and requested that trading of the Company’s common stock on the NASDAQ Global Select Market be suspended prior to the opening of trading on August 1, 2012. The Company also requested that NASDAQ file with the SEC a Notification of Removal from Listing and/or Registration under Section 12(b) of the Securities Exchange Act of 1934, as amended (the “Exchange Act”) on Form 25 to delist the Company’s common stock from the NASDAQ Global Select Market on August 1, 2012. The Company intends to file with the SEC a Certification on Form 15 under the Exchange Act requesting that the Shares be deregistered and that the Company’s reporting obligations under Sections 13(a) and 15(d) of the Exchange Act be terminated.

The disclosure contained in Item 2.01 is incorporated herein by reference.

Item 3.03 Material Modification to Rights of Security Holders.

The disclosure contained in Item 2.01 and 5.03 is incorporated herein by reference.

Item 5.01 Changes in Control of Registrant.

As a result of the Merger, the Company became a wholly owned subsidiary of LabCorp. The information disclosed in Items 2.01 and 3.01 is incorporated herein by reference. The source of the funds used by LabCorp in the acquisition is cash on hand. To the knowledge of the Company, except as set forth herein, there are no arrangements, including any pledge by any person of securities of the Company, the operation of which may at a subsequent date result in a further change in control of the Company.

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Item 5.03 Amendments to Articles of Incorporation or Bylaws; Changes in Fiscal Year.

Pursuant to the Merger, at the Effective Time the certificate of incorporation of the Company was amended and restated, the text of which amendment and restatement is filed as Exhibit 3.1 to this Form 8-K and incorporated herein by reference.

Pursuant to the Merger, the bylaws of Merger Sub as in effect at the Effective Time of the Merger became the bylaws of the Company, the text of which is filed as Exhibit 3.2 to this Form 8-K and incorporated herein by reference.

The disclosure contained in Item 2.01 is incorporated herein by reference.

Item 8.01 Other Events.

On August 1, 2012, LabCorp issued a press release regarding the closing of the Merger, a copy of which is attached hereto as Exhibit 99.1 and is incorporated herein by reference.

Item 9.01 Financial Statements and Exhibits.

Exhibit 2.1	Agreement and Plan of Merger, dated June 3, 2012, by and among Laboratory Corporation of America Holdings, Mercer Acquisition Corp. and MEDTOX Scientific, Inc. (incorporated by reference to Exhibit 2.1 of the Company Current Report on Form 8-K, filed with the SEC on June 4, 2012)
Exhibit 3.1	Second Amended and Restated Certificate of Incorporation of MEDTOX Scientific, Inc.
Exhibit 3.2	Amended and Restated Bylaws of MEDTOX Scientific, Inc.
Exhibit 99.1	Press Release, dated August 1, 2012, by Laboratory Corporation of America Holdings

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SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

	MEDTOX SCIENTIFIC, INC. (REGISTRANT)
Date: August 1, 2012	By:	/s/ F. Samuel Eberts III
		F. Samuel Eberts III President and Secretary

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Exhibit Index

Exhibit 2.1	Agreement and Plan of Merger, dated June 3, 2012, by and among Laboratory Corporation of America Holdings, Mercer Acquisition Corp. and MEDTOX Scientific, Inc. (incorporated by reference to Exhibit 2.1 of the Company Current Report on Form 8-K, filed with the SEC on June 4, 2012)
Exhibit 3.1	Second Amended and Restated Certificate of Incorporation of MEDTOX Scientific, Inc.
Exhibit 3.2	Amended and Restated Bylaws of MEDTOX Scientific, Inc.
Exhibit 99.1	Press Release, dated August 1, 2012, by Laboratory Corporation of America Holdings

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EX-3.1

Exhibit 3.1

SECOND AMENDED AND RESTATED

CERTIFICATE OF INCORPORATION

OF

MEDTOX SCIENTIFIC, INC.

ARTICLE I.

Name

The name of the corporation shall be MEDTOX Scientific, Inc. (the “Corporation”).

ARTICLE II.

Registered Office

The registered office of the Corporation in the State of Delaware shall be located at 2711 Centerville Road, Suite 400 in the City of Wilmington, County of New Castle, Delaware 19808. The name of the initial registered agent of the Corporation at such address is the Corporation Service Company.

ARTICLE III.

Purpose and Powers

The purpose of the Corporation is to engage in any lawful act or activity for which corporations may be organized under the General Corporation Law of the State of Delaware, (the “Delaware General Corporation Law”). The Corporation shall have all power necessary or convenient to the conduct, promotion or attainment of such acts and activities.

ARTICLE IV.

Capital Stock

Section 4.1 Authorized Shares

The total number of shares of all classes of stock that the Corporation shall have the authority to issue is one thousand (1,000) shares of common stock, having a par value of $.001 per share (the “Common Stock”).

Section 4.2 Common Stock

4.2.1 Dividends. Whenever there shall have been paid, or declared and set aside for payment, to the holders of shares of any class of stock having preference over the Common Stock as to the payment of dividends, the full amount of dividends and of sinking fund or retirement payments, if any, to which such holders are respectively entitled in preference to the Common Stock, then dividends may be paid on the Common Stock and on any class or series of stock entitled to participate therewith as to dividends, out of any assets legally available for the payment of dividends thereon, but only when and as declared by the Board of Directors of the Corporation.

4.2.2 Dissolution, Liquidation, Winding Up. In the event of any dissolution, liquidation, or winding up of the Corporation, whether voluntary or involuntary, the holders of the Common Stock, and holders of any class or series of stock entitled to participate therewith, in whole or in part, as to the distribution of assets in such event, shall become entitled to participate in the distribution of any assets of the Corporation remaining after the Corporation shall have paid, or provided for payment of, all debts and liabilities of the Corporation and after the Corporation shall have paid, or set aside for payment, to the holders of any class of stock having preference over the Common Stock in the event of dissolution, liquidation or winding up the full preferential amounts (if any) to which they are entitled.

4.2.3. Voting Rights. Each holder of shares of Common Stock shall be entitled to attend all special and annual meetings of the stockholders of the Corporation and, share for share and without regard to class, together with the holders of all other classes of stock entitled to attend such meetings and to vote (except any class or series of stock having special voting rights), to cast one vote for each outstanding share of Common Stock so held upon any matter or thing (including, without limitation, the election of one or more directors) properly considered and acted upon by the stockholders.

ARTICLE V.

Board of Directors

Section 5.1 Number; Election

The number of directors of the Corporation shall be such number as from time to time shall be fixed by, or in the manner provided in, the by-laws of the Corporation. Unless and except to the extent that the by-laws of the Corporation shall otherwise require, the election of directors of the Corporation need not be by written ballot. Except as otherwise provided in this Certificate of Incorporation, each director of the Corporation shall be entitled to one vote per director on all matters voted or acted upon by the Board of Directors of the Corporation.

Section 5.2 Management of Business and Affairs of the Corporation

The business and affairs of the Corporation shall be managed by or under the direction of the Board of Directors of the Corporation.

Section 5.3 Limitation of Liability

A director of the Corporation shall not be personally liable to the Corporation or its stockholders for monetary damages for breach of fiduciary duty as a director, except for liability (i) for any breach of the director’s duty of loyalty to the Corporation or its stockholders, (ii) for acts or omissions not in good faith or which involve intentional misconduct or a knowing violation of law, (iii) under Section 174 of the Delaware General Corporation Law, or (iv) for any transaction from which the director derived an improper personal benefit.

ARTICLE VI.

Amendment of By-Laws

In furtherance and not in limitation of the powers conferred by the Delaware General Corporation Law, the Board of Directors of the Corporation is expressly authorized and empowered to adopt, amend and repeal the by-laws of the Corporation.

ARTICLE VII.

Amendment of Certificate of Incorporation

The Corporation reserves the right at any time, and from time to time, to amend, alter, change, or repeal any provision contained in this Certificate of Incorporation, and other provisions authorized by the laws of the State of Delaware at the time in force may be added or inserted, in the manner now or hereafter prescribed by law; and all rights, preferences, and privileges of any nature conferred upon stockholders, directors, or any other persons by and pursuant to this Certificate of Incorporation in its present form or as hereafter amended are granted subject to the rights reserved in this Article 7.

EX-3.2

Exhibit 3.2

MEDTOX SCIENTIFIC, INC.

BYLAWS

EFFECTIVE AS OF JULY 31, 2012

BYLAWS

OF

MEDTOX SCIENTIFIC, INC.

1. OFFICES

1.1 Registered Office

The initial registered office of the Corporation in the State of Delaware shall be at 2711 Centerville Road, Suite 400 in Wilmington, County of New Castle, Delaware 19808. The name of the initial registered agent of the Corporation at such address is the Corporation Service Company.

1.2 Other Offices

The Corporation may also have offices at such other places, both within and without the State of Delaware, as the Board of Directors may from time to time determine or as may be necessary or useful in connection with the business of the Corporation.

2. MEETINGS OF STOCKHOLDERS

2.1 Place of Meetings

All meetings of the stockholders shall be held at such place as may be fixed from time to time by the Board of Directors, the Chairperson or the President. Notwithstanding the foregoing, the Board of Directors may determine that the meeting shall not be held at any place, but may instead be held by means of remote communication.

2.2 Annual Meetings

Unless directors are elected by written consent in lieu of an annual meeting, the Corporation shall hold annual meetings of stockholders, commencing with the year 2012, on such date and at such time as shall be designated from time to time by the Board of Directors, the Chairperson or the President, at which stockholders shall elect a Board of Directors and transact such other business as may properly be brought before the meeting. If a written consent electing directors is less than unanimous, such action by written consent may be in lieu of holding an annual meeting only if all of the directorships to which directors could be elected at an annual meeting held at the effective time of such action are vacant and are filled by such action.

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2.3 Special Meetings

Special meetings of the stockholders, for any purpose or purposes, unless otherwise prescribed by statute, may be called by the Board of Directors, the Chairperson or the President.

2.4 Notice of Meetings

Notice of any meeting of stockholders, stating the place, if any, date and hour of the meeting, the means of remote communication, if any, by which stockholders and proxyholders may be deemed to be present in person and vote at such meeting, and (if it is a special meeting) the purpose or purposes for which the meeting is called, shall be given to each stockholder entitled to vote at such meeting not less than 10 nor more than 60 days before the date of the meeting (except to the extent that such notice is waived or is not required as provided in the General Corporation Law of the State of Delaware (the “Delaware General Corporation Law”) or these Bylaws). Such notice shall be given in accordance with, and shall be deemed effective as set forth in, Sections 222 and 232 (or any successor section or sections) of the Delaware General Corporation Law.

2.5 Waivers of Notice

Whenever the giving of any notice is required by statute, the Certificate of Incorporation or these Bylaws, a written waiver thereof signed by the person or persons entitled to said notice, or a waiver thereof by electronic transmission by the person entitled to said notice, delivered to the Corporation, whether before or after the event as to which such notice is required, shall be deemed equivalent to notice. Attendance of a stockholder at a meeting shall constitute a waiver of notice (1) of such meeting, except when the stockholder at the beginning of the meeting objects to holding the meeting or transacting business at the meeting, and (2) (if it is a special meeting) of consideration of a particular matter at the meeting that is not within the purpose or purposes described in the meeting notice, unless the stockholder objects to considering the matter at the beginning of the meeting.

2.6 Business at Special Meetings

Business transacted at any special meeting of stockholders shall be limited to the purposes stated in the notice (except to the extent that such notice is waived or is not required as provided in the Delaware General Corporation Law or these Bylaws).

2.7 Quorum at Meetings

Stockholders may take action on a matter at a meeting only if a quorum exists with respect to that matter. Except as otherwise provided by statute or by the Certificate of Incorporation, the holders of a majority of the shares entitled to vote at the meeting, and who are present in person or represented by proxy, shall constitute a quorum at all meetings of the stockholders for the transaction of business. Where a separate vote by a class or series or classes or series is required, a majority of the outstanding shares of such class or series or classes or series, present in person or represented by proxy, shall constitute a quorum entitled to take action

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with respect to that vote on that matter. Once a share is represented for any purpose at a meeting (other than solely to object (1) to holding the meeting or transacting business at the meeting, or (2) (if it is a special meeting) to consideration of a particular matter at the meeting that is not within the purpose or purposes described in the meeting notice), it is deemed present for quorum purposes for the remainder of the meeting and for any adjournment of that meeting unless a new record date is or must be set for the adjourned meeting. The holders of a majority of the voting shares represented at a meeting, whether or not a quorum is present, may adjourn such meeting from time to time.

2.8 Voting and Proxies

Unless otherwise provided in the Delaware General Corporation Law or in the Corporation’s Certificate of Incorporation, and subject to the other provisions of these Bylaws, each stockholder shall be entitled to one vote on each matter, in person or by proxy, for each share of the Corporation’s capital stock that has voting power and that is held by such stockholder. No proxy shall be voted or acted upon after three years from its date, unless the proxy provides for a longer period. A duly executed appointment of proxy shall be irrevocable if the appointment form states that it is irrevocable and if, and only as long as, it is coupled with an interest sufficient in law to support an irrevocable power. If authorized by the Board of Directors, and subject to such guidelines as the Board of Directors may adopt, stockholders and proxyholders not physically present at a meeting of stockholders may, by means of remote communication, participate in a meeting of stockholders and be deemed present in person and vote at such meeting whether such meeting is held at a designated place or solely by means of remote communication, provided that (1) the Corporation implements reasonable measures to verify that each person deemed present and permitted to vote at the meeting by means of remote communication is a stockholder or proxyholder, (2) the Corporation implements reasonable measures to provide such stockholders and proxyholders a reasonable opportunity to participate in the meeting and to vote on matters submitted to the stockholders, including an opportunity to read or hear the proceedings of the meeting substantially concurrently with such proceedings, and (3) if any stockholder or proxyholder votes or takes other action at the meeting by means of remote communication, a record of such vote or other action is maintained by the Corporation.

2.9 Required Vote

When a quorum is present at any meeting of stockholders, all matters shall be determined, adopted and approved by the affirmative vote (which need not be by ballot) of the holders of a majority of the shares present in person or represented by proxy at the meeting and entitled to vote with respect to the matter, unless the proposed action is one upon which, by express provision of statutes or of the Certificate of Incorporation, a different vote is specified and required, in which case such express provision shall govern and control with respect to that vote on that matter. If the Certificate of Incorporation provides for more or less than one vote for any share, on any matter, every reference in these Bylaws to a majority or other proportion of stock, voting stock or shares shall refer to a majority or other proportion of the votes of such stock, voting stock or shares. Where a separate vote by a class or classes is required, the affirmative vote of the holders of a majority of the shares of such class or classes present in person or represented by proxy at the meeting shall be the act of such class. Notwithstanding the foregoing, directors shall be elected by a plurality of the votes of the shares present in person or represented by proxy at the meeting and entitled to vote on the election of directors.

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2.10 Action Without a Meeting

Any action required or permitted to be taken at a stockholders’ meeting may be taken without a meeting, without prior notice and without a vote, if the action is taken by persons who would be entitled to vote at a meeting and who hold shares having voting power equal to not less than the minimum number of votes that would be necessary to authorize or take the action at a meeting at which all shares entitled to vote were present and voted. The action must be evidenced by one or more written consents describing the action taken, signed by the stockholders entitled to take action without a meeting, and delivered to the Corporation in the manner prescribed by the Delaware General Corporation Law for inclusion in the minute book. No consent shall be effective to take the corporate action specified unless the number of consents required to take such action are delivered to the Corporation within 60 days of the delivery of the earliest-dated consent. A telegram, cablegram or other electronic transmission consenting to such action and transmitted by a stockholder or proxyholder, or by a person or persons authorized to act for a stockholder or proxyholder, shall be deemed to be written, signed and dated for the purposes of this Section 2.10. No consent given by telegram, cablegram or other electronic transmission shall be deemed to have been delivered until such consent is delivered to the Corporation in accordance with Section 228(d)(1) (or any successor section) of the Delaware General Corporation Law. Written notice of the action taken shall be given in accordance with the Delaware General Corporation Law to all stockholders who do not participate in taking the action who would have been entitled to notice if such action had been taken at a meeting having a record date on the date that written consents signed by a sufficient number of holders to take the action were delivered to the Corporation.

3. DIRECTORS

3.1 Powers

The business and affairs of the Corporation shall be managed by or under the direction of the Board of Directors, which may exercise all such powers of the Corporation and do all such lawful acts and things, subject to any limitation set forth in the Certificate of Incorporation or as otherwise may be provided in the Delaware General Corporation Law.

3.2 Number and Election

The number of directors which shall constitute the whole Board of Directors shall not be fewer than one member nor more than nine and shall be that number of members that the Board of Directors or stockholders determines shall be serving on the Board of Directors from time to time.

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3.3 Nomination of Directors

Directors shall be elected at the annual meeting of stockholders, and may be elected at any special meeting of stockholders for such purpose or by written consent in lieu of meeting pursuant to Section 2.10. The directors shall be elected at the annual meeting of stockholders or at any special meeting of stockholders, except as provided in Section 3.4 hereof, and each director elected shall hold office until such director’s successor is elected and qualified or until the director’s earlier death, resignation or removal. Directors need not be stockholders.

3.4 Vacancies

Vacancies and newly created directorships resulting from any increase in the authorized number of directors elected by all of the stockholders having the right to vote as a single class may be filled by the affirmative vote of a majority of the directors then in office, although fewer than a quorum, or by a sole remaining director. Whenever the holders of any class or classes of stock or series thereof are entitled to elect one or more directors by the provisions of the Certificate of Incorporation, vacancies and newly created directorships of such class or classes or series may be filled by the affirmative vote of a majority of the directors elected by such class or classes or series thereof then in office, or by a sole remaining director so elected. Each director so chosen shall hold office until the next election of directors of the class to which such director was appointed, and until such director’s successor is elected and qualified, or until the director’s earlier death, resignation or removal. In the event that one or more directors resign from the Board of Directors, effective at a future date, a majority of the directors then in office, including those who have so resigned, shall have power to fill such vacancy or vacancies, the vote thereon to take effect when such resignation or resignations shall become effective, and each director so chosen shall hold office until the next election of directors, and until such director’s successor is elected and qualified, or until the director’s earlier death, resignation or removal.

3.5 Meetings

3.5.1 Regular Meetings

Regular meetings of the Board of Directors may be held without notice at such time and at such place as shall from time to time be determined by the Board of Directors.

3.5.2 Special Meetings

Special meetings of the Board of Directors may be called by the Chairperson or President on one day’s notice to each director, either personally or by telephone, express delivery service (so that the scheduled delivery date of the notice is at least one day in advance of the meeting), telegram, facsimile transmission, electronic mail (effective when directed to an electronic mail address of the director), or other electronic transmission, as defined in Section 232(c) (or any successor section) of the Delaware General Corporation Law (effective when directed to the director), and on five days’ notice by mail (effective upon deposit of such notice in the mail). The notice need not describe the purpose of a special meeting.

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3.5.3 Telephone Meetings

Members of the Board of Directors may participate in a meeting of the Board of Directors by any communication by means of which all participating directors can simultaneously hear each other during the meeting. A director participating in a meeting by this means is deemed to be present in person at the meeting.

3.5.4 Action Without Meeting

Any action required or permitted to be taken at any meeting of the Board of Directors may be taken without a meeting if the action is taken by all members of the Board of Directors. The action must be evidenced by one or more consents in writing or by electronic transmission describing the action taken, signed by each director, and delivered to the Corporation for inclusion in the minute book.

3.5.5 Waiver of Notice of Meeting

A director may waive any notice required by statute, the Certificate of Incorporation or these Bylaws before or after the date and time stated in the notice. Except as set forth below, the waiver must be in writing, signed by the director entitled to the notice, or made by electronic transmission by the director entitled to the notice, and delivered to the Corporation for inclusion in the minute book. Notwithstanding the foregoing, a director’s attendance at or participation in a meeting waives any required notice to the director of the meeting unless the director at the beginning of the meeting objects to holding the meeting or transacting business at the meeting and does not thereafter vote for or assent to action taken at the meeting.

3.6 Quorum and Vote at Meetings

At all meetings of the Board of Directors, a quorum of the Board of Directors consists of a majority of the total number of directors prescribed pursuant to Section 3.2 of these Bylaws. The vote of a majority of the directors present at any meeting at which there is a quorum shall be the act of the Board of Directors, except as may be otherwise specifically provided by statute or by the Certificate of Incorporation or by these Bylaws.

3.7 Committees of Directors

The Board of Directors may designate one or more committees, each committee to consist of one or more directors. The Board of Directors may designate one or more directors as alternate members of any committee, who may replace any absent or disqualified member at any meeting of the committee. If a member of a committee shall be absent from any meeting, or disqualified from voting thereat, the remaining member or members present and not disqualified from voting, whether or not such member or members constitute a quorum, may, by unanimous vote, appoint another member of the Board of Directors to act at the meeting in the place of such absent or disqualified member. Any such committee, to the extent provided in the resolution of the Board of Directors, shall have and may exercise all the powers and authority of the Board of Directors in the management of the business and affairs of the Corporation, and may authorize the seal of the Corporation to be affixed to all papers which may require it; but no such

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committee shall have the power or authority in reference to approving or adopting, or recommending to the stockholders, any action or matter (other than the election or removal of directors) expressly required by the Delaware General Corporation Law to be submitted to stockholders for approval or adopting, amending or repealing any bylaw of the Corporation; and unless the resolution designating the committee, these bylaws or the Certificate of Incorporation expressly so provide, no such committee shall have the power or authority to declare a dividend, to authorize the issuance of stock, or to adopt a certificate of ownership and merger pursuant to Section 253 (or any successor section) of the Delaware General Corporation Law. Such committee or committees shall have such name or names as may be determined from time to time by resolution adopted by the Board of Directors. Each committee shall keep regular minutes of its meetings and report the same to the Board of Directors, when required. Unless otherwise specified in the Board of Directors’ resolution appointing the committee, all provisions of the Delaware General Corporation Law and these Bylaws relating to meetings, action without meetings, notice (and waiver thereof), and quorum and voting requirements of the Board of Directors apply, as well, to such committees and their members. Unless otherwise provided in the Certificate of Incorporation, these Bylaws, or the resolution of the Board of Directors designating the committee, a committee may create one or more subcommittees, each subcommittee to consist of one or more members of the committee, and delegate to a subcommittee any or all of the powers and authority of the committee.

3.8 Compensation of Directors

The Board of Directors shall have the authority to fix the compensation of directors. No such payment shall preclude any director from serving the Corporation in any other capacity and receiving compensation therefor.

3.9 Limitation of Liability

No director of the Corporation shall be liable to the Corporation or its stockholders for monetary damages for breach of fiduciary duty as a director, provided that this provision shall not eliminate or limit the liability of a director (1) for any breach of the director’s duty of loyalty to the Corporation or its stockholders; (2) for acts or omissions not in good faith or which involve intentional misconduct or a knowing violation of law; (3) under Section 174 (or any successor section) of the Delaware General Corporation Law; or (4) for any transaction from which the director derived an improper personal benefit. Any repeal or modification of this Section 3.9 shall be prospective only and shall not adversely affect any right or protection of, or any limitation of the liability of, a director of the Corporation existing at, or arising out of facts or incidents occurring prior to, the effective date of such repeal or modification.

4. OFFICERS

4.1 Positions

The officers of the Corporation shall be a Chairperson, a President, a Secretary and a Treasurer, and such other officers as the Board of Directors (or an officer authorized by the Board of Directors) from time to time may appoint, including one or more Vice Chairmen,

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Executive Vice Presidents, Vice Presidents, Assistant Secretaries and Assistant Treasurers. Each such officer shall exercise such powers and perform such duties as shall be set forth below and such other powers and duties as from time to time may be specified by the Board of Directors or by any officer(s) authorized by the Board of Directors to prescribe the duties of such other officers. Any number of offices may be held by the same person. As set forth below, each of the Chairperson, President, and/or any Vice President may execute bonds, mortgages and other contracts under the seal of the Corporation, if required, except where required or permitted by law to be otherwise executed and except where the execution thereof shall be expressly delegated by the Board of Directors to some other officer or agent of the Corporation.

4.2 Chairperson

The Chairperson shall (when present) preside at all meetings of the Board of Directors and stockholders, and shall ensure that all orders and resolutions of the Board of Directors and stockholders are carried into effect. The Chairperson may execute bonds, mortgages and other contracts, under the seal of the Corporation, if required, except where required or permitted by law to be otherwise signed and executed and except where the signing and execution thereof shall be expressly delegated by the Board of Directors to some other officer or agent of the Corporation.

4.3 President

The President shall be the chief executive officer of the Corporation and shall have full responsibility and authority for management of the operations of the Corporation, subject to the authority of the Board of Directors. The President may execute bonds, mortgages and other contracts, under the seal of the Corporation, if required, except where required or permitted by law to be otherwise signed and executed and except where the signing and execution thereof shall be expressly delegated by the Board of Directors to some other officer or agent of the Corporation.

4.4 Vice President

In the absence of the President or in the event of the President’s inability or refusal to act, the Vice President (or in the event there be more than one Vice President, the Vice Presidents in the order designated, or in the absence of any designation, then in the order of their election) shall perform the duties of the President, and when so acting shall have all the powers of, and be subject to all the restrictions upon, the President.

4.5 Secretary

The Secretary shall have responsibility for preparation of minutes of meetings of the Board of Directors and of the stockholders and for authenticating records of the Corporation. The Secretary shall give, or cause to be given, notice of all meetings of the stockholders and special meetings of the Board of Directors. The Secretary or an Assistant Secretary may also attest all instruments signed by any other officer of the Corporation.

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4.6 Assistant Secretary

The Assistant Secretary, or if there be more than one, the Assistant Secretaries in the order determined by the Board of Directors (or if there shall have been no such determination, then in the order of their election), shall, in the absence of the Secretary or in the event of the Secretary’s inability or refusal to act, perform the duties and exercise the powers of the Secretary.

4.7 Treasurer

The Treasurer shall be the chief financial officer of the Corporation and shall have responsibility for the custody of the corporate funds and securities and shall see to it that full and accurate accounts of receipts and disbursements are kept in books belonging to the Corporation.

The Treasurer shall render to the Chairperson, the President, and the Board of Directors, upon request, an account of all financial transactions and of the financial condition of the Corporation.

4.8 Assistant Treasurer

The Assistant Treasurer, or if there shall be more than one, the Assistant Treasurers in the order determined by the Board of Directors (or if there shall have been no such determination, then in the order of their election), shall, in the absence of the Treasurer or in the event of the Treasurer’s inability or refusal to act, perform the duties and exercise the powers of the Treasurer.

4.9 Term of Office

The officers of the Corporation shall hold office until their successors are chosen and qualify or until their earlier resignation or removal. Any officer may resign at any time upon written notice to the Corporation. Any officer elected or appointed by the Board of Directors may be removed at any time, with or without cause, by the affirmative vote of a majority of the Board of Directors.

4.10 Compensation

The compensation of officers of the Corporation shall be fixed by the Board of Directors or by any officer(s) authorized by the Board of Directors to prescribe the compensation of such other officers.

4.11 Fidelity Bonds

The Corporation may secure the fidelity of any or all of its officers or agents by bond or otherwise.

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5. CAPITAL STOCK

5.1 Certificates of Stock; Uncertificated Shares

The shares of the Corporation shall be represented by certificates, provided that the Board of Directors may provide by resolution that some or all of any or all classes or series of the Corporation’s stock shall be uncertificated shares. Any such resolution shall not apply to shares represented by a certificate until such certificate is surrendered to the Corporation. Every holder of stock represented by certificates shall be entitled to have a certificate (representing the number of shares registered in certificate form) signed in the name of the Corporation by the Chairperson, President or any Vice President, and by the Treasurer, Secretary or any Assistant Treasurer or Assistant Secretary of the Corporation. Any or all the signatures on the certificate may be a facsimile. In case any officer, transfer agent or registrar whose signature or facsimile signature appears on a certificate shall have ceased to be such officer, transfer agent or registrar before such certificate is issued, it may be issued by the Corporation with the same effect as if such person were such officer, transfer agent or registrar at the date of issue.

5.2 Lost Certificates

The Board of Directors, Chairperson, President or Secretary may direct a new certificate of stock to be issued in place of any certificate theretofore issued by the Corporation and alleged to have been lost, stolen or destroyed, upon the making of an affidavit of that fact by the person claiming that the certificate of stock has been lost, stolen or destroyed. When authorizing such issuance of a new certificate, the Board of Directors or any such officer may, as a condition precedent to the issuance thereof, require the owner of such lost, stolen or destroyed certificate or certificates, or such owner’s legal representative, to advertise the same in such manner as the Board of Directors or such officer shall require and/or to give the Corporation a bond or indemnity, in such sum or on such terms and conditions as the Board of Directors or such officer may direct, as indemnity against any claim that may be made against the Corporation on account of the certificate alleged to have been lost, stolen or destroyed or on account of the issuance of such new certificate or uncertificated shares.

5.3 Record Date

5.3.1 Actions by Stockholders

In order that the Corporation may determine the stockholders entitled to notice of or to vote at any meeting of stockholders, the Board of Directors may fix a record date, which record date shall not precede the date upon which the resolution fixing the record date is adopted by the Board of Directors, and which record date shall not be more than 60 days nor less than 10 days before the date of such meeting. If no record date is fixed by the Board of Directors, the record date for determining stockholders entitled to notice of or to vote at a meeting of stockholders shall be the close of business on the day next preceding the day on which notice is given, or, if notice is waived, at the close of business on the day next preceding the day on which the meeting is held. A determination of stockholders of record entitled to notice of or to vote at a meeting of stockholders shall apply to any adjournment of the meeting, unless the Board of Directors fixes a new record date for the adjourned meeting.

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In order that the Corporation may determine the stockholders entitled to consent to corporate action in writing without a meeting, the Board of Directors may fix a record date, which record date shall not precede the date upon which the resolution fixing the record date is adopted by the Board of Directors, and which record date shall not be more than 10 days after the date upon which the resolution fixing the record date is adopted by the Board of Directors. If no record date has been fixed by the Board of Directors, the record date for determining stockholders entitled to consent to corporate action in writing without a meeting, when no prior action by the Board of Directors is required by the Delaware General Corporation Law, shall be the first date on which a signed written consent setting forth the action taken or proposed to be taken is delivered to the Corporation in the manner prescribed by Section 213(b) (or any successor section) of the Delaware General Corporation Law. If no record date has been fixed by the Board of Directors and prior action by the Board of Directors is required by the Delaware General Corporation Law, the record date for determining stockholders entitled to consent to corporate action in writing without a meeting shall be at the close of business on the day on which the Board of Directors adopts the resolution taking such prior action.

5.3.2 Payments

In order that the Corporation may determine the stockholders entitled to receive payment of any dividend or other distribution or allotment of any rights or the stockholders entitled to exercise any rights in respect of any change, conversion or exchange of stock, or for the purpose of any other lawful action, the Board of Directors may fix a record date, which record date shall not precede the date upon which the resolution fixing the record date is adopted, and which record date shall be not more than 60 days prior to such action. If no record date is fixed, the record date for determining stockholders for any such purpose shall be at the close of business on the day on which the Board of Directors adopts the resolution relating thereto.

5.4 Stockholders of Record

The Corporation shall be entitled to recognize the exclusive right of a person registered on its books as the owner of shares to receive dividends, to receive notifications, to vote as such owner, and to exercise all the rights and powers of an owner. The Corporation shall not be bound to recognize any equitable or other claim to or interest in such share or shares on the part of any other person, whether or not it shall have express or other notice thereof, except as otherwise may be provided by the Delaware General Corporation Law.

6. INDEMNIFICATION; INSURANCE

6.1 Indemnification

The Corporation shall indemnify any person made a party to an action by or in the right of the Corporation to procure a judgment in its favor by reason of the fact that he, his testator or intestate, is or was a director or officer of the Corporation, against expenses, including attorneys’ fees, actually and necessarily incurred by him in connection with the defense of such action or in connection with an appeal therein, except in relation to matters as to which such director or officer is adjudged to be liable for negligence or misconduct in the performance of his

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duty to the Corporation except as otherwise provided by law or in the Certificate of Incorporation of the Corporation. The Corporation shall indemnify any person made or threatened to be made a party to an action or proceeding other than one of the type referred to in the foregoing, whether civil or criminal, including, without limitation, an action by or in the right of any other corporation which any director or officer of the Corporation served in any capacity at the request of the Corporation, by reason of the fact that he, his testator or intestate was a director or officer of the Corporation or served such other corporation in any capacity, against judgments, fines, amounts paid in settlement and expenses, including attorneys’ fees, actually and necessarily incurred as a result of such action or proceeding or any appeal therein, if such director or officer acted, in good faith, for a purpose which he reasonably believed to be in the best interests of the Corporation and, in criminal actions or proceedings, in addition, had no reasonable cause to believe that his conduct was unlawful. The termination of any such civil or criminal action or proceeding by judgment, settlement, conviction or upon a plea of nolo contendere, or its equivalent, shall not in itself create a presumption that any such director or officer did not act in good faith for a purpose which he reasonably believed to be in the best interest of the Corporation or that he had reasonable cause to believe that his conduct was unlawful. Expenses incurred in defending a civil or criminal action or proceeding may be paid by the Corporation in advance of the final disposition of such action or proceeding. The foregoing right of indemnification shall not be deemed exclusive of any other rights to which those indemnified may be entitled as a matter of law or any bylaw, agreement, vote of stockholders, provision of the Certificate of Incorporation or otherwise.

6.2 Insurance

The Corporation may maintain insurance, at its expense, to protect itself and any director, officer, employee or agent of the Corporation or another corporation, partnership, joint venture, trust or other enterprise against any expense, liability or loss, whether or not the Corporation would have the power to indemnify such person against such expense, liability or loss under the Delaware General Corporation Law.

6.3 Indemnification of Employees and Agents of the Corporation

The Corporation may, to the extent authorized from time to time by the Board of Directors, grant rights to indemnification and to the advancement of expenses to any employee or agent of the Corporation to the fullest extent of the provisions of this Section 6 with respect to the indemnification and advancement of expenses of directors and officers of the Corporation.

7. GENERAL PROVISIONS

7.1 Inspection of Books and Records

Any stockholder, in person or by attorney or other agent, shall, upon written demand under oath stating the purpose thereof, have the right during the usual hours for business to inspect for any proper purpose, and to make copies or extracts from: (1) the Corporation’s stock ledger, a list of its stockholders, and its other books and records; and (2) other documents as required by law. A proper purpose shall mean a purpose reasonably related to such person’s

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interest as a stockholder. In every instance where an attorney or other agent shall be the person who seeks the right to inspection, the demand under oath shall be accompanied by a power of attorney or such other writing which authorizes the attorney or other agent to so act on behalf of the stockholder. The demand under oath shall be directed to the Corporation at its registered office or at its principal place of business.

7.2 Dividends

The Board of Directors may declare dividends upon the capital stock of the Corporation, subject to the provisions of the Certificate of Incorporation and the laws of the State of Delaware.

7.3 Reserves

The directors of the Corporation may set apart, out of the funds of the Corporation available for dividends, a reserve or reserves for any proper purpose and may abolish any such reserve.

7.4 Execution of Instruments

All checks, drafts or other orders for the payment of money, and promissory notes of the Corporation shall be signed by such officer or officers or such other person or persons as the Board of Directors may from time to time designate.

7.5 Fiscal Year

The fiscal year of the Corporation shall be fixed by resolution of the Board of Directors.

7.6 Seal

The corporate seal shall be in such form as the Board of Directors shall approve. The seal may be used by causing it or a facsimile thereof to be impressed or affixed or otherwise reproduced.

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EX-99.1

Exhibit 99.1

LABCORP COMPLETES ACQUISITION OF MEDTOX

BURLINGTON, N.C. August 1, 2012 — Laboratory Corporation of America^® Holdings (NYSE: LH) today announced the completion of its acquisition of MEDTOX Scientific, Inc. (NASDAQ: MTOX), effective July 31, 2012.

At a special meeting held on July 31, 2012, MEDTOX’s stockholders approved the acquisition and the transaction closed promptly thereafter. After the close of the Nasdaq Global Select Market on July 31, 2012, trading in MEDTOX common stock ceased, and the listing of MEDTOX’s common stock was suspended. MEDTOX stockholders will receive a letter of transmittal from American Stock Transfer & Trust Company LLC as paying agent with instructions on how to cash in their shares of MEDTOX common stock.

About LabCorp^® 

Laboratory Corporation of America^® Holdings, an S&P 500 company, is a pioneer in commercializing new diagnostic technologies and the first in its industry to embrace genomic testing. With annual revenues of $5.5 billion in 2011, over 31,000 employees worldwide, and more than 220,000 clients, LabCorp offers more than 4,000 tests ranging from routine blood analyses to reproductive genetics to companion diagnostics. LabCorp furthers its scientific expertise and innovative clinical testing technology through its LabCorp Specialty Testing Group: The Center for Molecular Biology and Pathology, National Genetics Institute, ViroMed Laboratories, Inc., The Center for Esoteric Testing, Litholink Corporation, Integrated Genetics, Integrated Oncology, DIANON Systems, Inc., Monogram Biosciences, Inc., Colorado Coagulation, and Endocrine Sciences. LabCorp conducts clinical trials testing through its LabCorp Clinical Trials division. LabCorp clients include physicians, government agencies, managed care organizations, hospitals, clinical labs, and pharmaceutical companies. To learn more about our organization, visit our Web site at: www.labcorp.com.

Forward Looking Statements

Investors are cautioned that statements in this press release that are not strictly historical statements, constitute forward-looking statements. These statements are based on current expectations, forecasts and assumptions of LabCorp that are subject to risks and uncertainties that could cause actual outcomes and results to differ materially from those statements. These risks and uncertainties include, among others, the risk that the transaction may not achieve the anticipated strategic benefits; customers, suppliers, employees or strategic partners may have adverse reactions to the transaction; the integration of MEDTOX into LabCorp’s business subsequent to the closing of the transaction may not be successful; as well as other factors detailed in LabCorp’s and MEDTOX’s filings with the SEC, including LabCorp’s Annual Report on Form 10-K for the year ended December 31, 2011 and subsequent SEC filings, and MEDTOX’S Annual Report on Form 10-K for the year ended December 31, 2011 and subsequent SEC filings.

Contact:

Laboratory Corporation of America^® Holdings

Investor/Media Contact:

Stephen Anderson, 336-436-5274

Company Information: www.labcorp.com

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