Exhibit 3.1

FOURTH AMENDED AND RESTATED

CERTIFICATE OF INCORPORATION

OF

FTS INTERNATIONAL, INC.
(a Delaware corporation)

Article I
NAME

The name of the corporation is FTS International, Inc. (the “Corporation”).

Article II
AGENT

The address of the Corporation’s registered office in the State of Delaware is 251 Little Falls Drive, in the City of Wilmington, New Castle County, Delaware 19808. The name of its registered agent at such address is Corporation Service Company.

Article III
PURPOSE

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 “DGCL”).

Article IV
STOCK

The Corporation shall be authorized to issue one class of stock to be designated Common Stock; the total number of shares of Common Stock which the Corporation shall have authority to issue is 50,000,000, and each such share shall have a par value of $0.01.

Article V
DIRECTORS

Section 5.1Number. Except as otherwise provided for or fixed pursuant to the provisions of this Certificate of Incorporation, the number of directors of the Corporation shall be fixed by or in the manner provided in the Bylaws.

Section 5.2Election. Elections of directors need not be by written ballot unless the Bylaws of the Corporation shall so provide.

Article VI
EXISTENCE

The Corporation shall have perpetual existence.

Article VII
AMENDMENT

Section 7.1Amendment 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 the laws of the State of Delaware, and all powers, preferences and rights 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 this reservation.

Section 7.2Amendment of Bylaws. In furtherance and not in limitation of the powers conferred by the laws of the State of Delaware, the Board of Directors is expressly authorized to adopt, amend or repeal the Bylaws of the Corporation.

Article VIII
LIABILITY OF DIRECTORS

Section 8.1No Personal Liability. To the fullest extent permitted by the DGCL as the same exists or as may hereafter be amended, no director of the Corporation shall be personally liable to the Corporation or its stockholders for monetary damages for breach of fiduciary duty as a director.

Section 8.2Right to Indemnification.

(a)Each person (and the heirs, executors or administrators of such person) who was or is a party or is threatened to be made a party to, or is involved in any threatened, pending or completed action, suit or proceeding, whether civil, criminal, administrative or investigative, by reason of the fact that such person is or was a director or officer of the Corporation or is or was serving at the request of the Corporation as a director or officer of another corporation, partnership, joint venture, trust or other enterprise, shall be indemnified and held harmless by the Corporation to the fullest extent permitted by Delaware law. The right to indemnification conferred in this ‎Section 8.2 shall also include the right to be paid by the Corporation the expenses incurred in connection with any such proceeding in advance of its final disposition to the fullest extent authorized by Delaware law. The right to indemnification conferred in this ‎Section 8.2 shall be a contract right.

(b)The Corporation may, by action of its Board of Directors, provide indemnification to such of the employees and agents of the Corporation to such extent and to such effect as the Board of Directors shall determine to be appropriate and authorized by Delaware law.

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(c) The Corporation shall have the power to purchase and maintain insurance on behalf of any person who is or was a director, officer, employee or agent of the Corporation, or is or was serving at the request of the Corporation as a director, officer, employee or agent of another corporation, partnership, joint venture, trust or other enterprise against any expense, liability or loss incurred by such person in any such capacity or arising out of such person’s status as such, whether or not the Corporation would have the power to indemnify such person against such liability under Delaware law.

(d)The rights and authority conferred in this Article 8 shall not be exclusive of any other right that any person may otherwise have or hereafter acquire.

Section 8.3Amendment or Repeal. Any amendment, alteration or repeal of this Article VIII that adversely affects any right of a director shall be prospective only and shall not limit or eliminate any such right with respect to any proceeding involving any occurrence or alleged occurrence of any action or omission to act that took place prior to such amendment, alteration or repeal.

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IN WITNESS WHEREOF, the Corporation has caused this Fourth Amended and Restated Certificate of Incorporation to be signed by its duly authorized officer this 4th day of March, 2022 and the foregoing facts stated herein are true and correct. 

By:	/s/ Robert J. Willette
	Name:	Robert J. Willette
	Title:	Secretary

SIGNATURE PAGE TO CERTIFICATE OF INCORPORATION