Exhibit

Exhibit 3.1

State of Delaware

Secretary of State

Division of

Corporations

Delivered 12:33 PM

03/05/2019 FILED 12:33

PM 03/05/2019

SR 20191758138 - FileNumber

4682119

RESTATED CERTIFICATE OF INCORPORATION OF

RENEWABLE ENERGY GROUP, INC.

(originally incorporated on April 29, 2009 under the name "REG Newco, Inc.")

Renewable Energy Group, Inc. (the "Corporation"), a corporation organized and existing under the General Corporation Law of the State of Delaware (the "DGCL"), hereby certifies that the Corporation's Certificate of Incorporation is hereby restated to read in its entirety as follows:

ARTICLE I

The name of the Corporation is Renewable Energy Group, Inc.

ARTICLE II

The address of the registered office of the Corporation in the State of Delaware is 850 New Burton Road, Suite 201, City of Dover, County of Kent, 19904. The name of its registered agent at such address is Cogency Global Inc.

ARTICLE III

The purpose of the Corporation is to engage in any lawful act or activity for which a corporation may be organized under the DGCL.

ARTICLE IV

A.Classes of Stock. The total number of shares of all classes of classes of capital stock that the Corporation shall have authority to issue is three hundred ten million (310,000,000), consisting of three hundred million (300,000,000) shares of Common Stock, par value $.0001 per share (the "Common Stock"), and ten million (10,000,000) shares of Preferred Stock, par value $.0001 per share (the "Preferred Stock"). The number of authorized shares of Common Stock or Preferred Stock may be increased or decreased (but not below the number of shares thereof then outstanding) by the affirmative vote of the holders of a majority of the then outstanding shares of Common Stock without a vote of the holders of the Preferred Stock, or of any series thereof, unless a vote of any such Preferred Stock holders is required by the certificate of incorporation of the Corporation (including any applicable certificate of designations), and if such holders of such Preferred Stock are so entitled to vote thereon, then, except as may otherwise be set forth in the certificate of incorporation of the Corporation (including any applicable certificate of designations), the only stockholder approval required shall be the affirmative vote of a majority of the voting power of the Common Stock and the Preferred Stock so entitled to vote, voting together as a single class.

B.Common Stock. Except as otherwise required by law or the certificate of incorporation of the Corporation, each holder of Common Stock shall be entitled to one vote in respect of each share of Common Stock held by such holder of record on the books of the Corporation for the election of directors and on all matters submitted to a vote of stockholders of the Corporation and shall otherwise have the rights conferred by applicable law in respect of such shares.

C.Preferred Stock. The Preferred Stock may be issued from time to time in one or more series, as determined by the Board of Directors. The Board of Directors is expressly authorized to provide for the issue, in one or more series, of all or any of the shares of Preferred Stock and, in the resolution or resolutions providing for such issue, to establish for each such series the number of its shares, the voting powers, full or limited, of the shares of such series, or that such shares shall have no voting powers, and the designations, preferences and relative, participating, optional or other special rights of the shares of such series, and the qualifications, limitations or restrictions thereof. The Board of Directors is also expressly authorized (unless forbidden in the resolution or resolutions providing for such issue) to increase or decrease (but not below the number of shares of such series then outstanding) the number of shares of any series subsequent to the issuance of shares of that series. In case the number of shares of any such series shall be so decreased, the shares constituting such decrease shall resume the status that they had prior to the adoption of the resolution originally fixing the number of shares of such series.

ARTICLE V

In furtherance and not in limitation of the powers conferred by the laws of the State of Delaware:

A.The Board of Directors is expressly authorized to adopt, amend or repeal the bylaws of the Corporation, without any action on the part of the stockholders, by the vote of at least a majority of the directors of the Corporation then in office; which shall include the affirmative vote of at least one director from each class of the Board of Directors if the Board of Directors shall then be divided into classes. In addition to any vote of the holders of any class or series of stock of the Corporation required by law or the certificate of incorporation of the Corporation, the bylaws may also be adopted, amended or repealed by the affirmative vote of the holders of at least sixty-six and two-thirds percent (66-2/3%) of the voting power of the shares of the capital stock of the Corporation entitled to vote in the election of directors, voting as one class; provided, however, that the affirmative vote of the holders representing only a majority of the voting power of the shares of the capital stock of the Corporation entitled to vote in the election of directors, voting as one class, shall be required if such adoption, amendment or repeal of the bylaws has been previously approved by the affirmative vote of at least two-thirds (2/3) of the directors of the Corporation then in office.

B.Elections of directors need not be by written ballot unless the bylaws of the Corporation shall so provide.

C.The books of the Corporation may be kept at such place within or without the State of Delaware as the bylaws of the Corporation may provide or as may be designated from time to time by the Board of Directors.

ARTICLE VI

A.The business and affairs of the Corporation shall be managed by a Board of Directors consisting of not less than five (5) nor more than fifteen (15) persons. The exact number of directors within the minimum and maximum limitations specified in the preceding sentence shall be fixed from time to time by the Board of Directors pursuant to a resolution adopted by the affirmative vote of a majority of the directors of the Corporation then in office. The Board of Directors, other than those directors elected by the holders of any series of Preferred Stock as provided for or fixed pursuant to the provisions of Article IV hereof, shall be divided into three classes, designated Class I, Class II and Class III, as nearly equal in number as possible, and the term of office of directors of one class shall expire at each annual meeting of stockholders, and in all cases as to each director until his successor shall be duly elected and qualified or until his earlier resignation, removal from office, death or incapacity. Upon the effectiveness of the Restated Certificate of Incorporation first inserting this sentence, the Board of Directors shall assign all members of the Board of Directors then in office to a class and those directors assigned to Class I shall hold office for a term expiring at the first regularly scheduled annual meeting of stockholders following the effectiveness of the Restated Certificate of Incorporation first inserting this sentence (the “Effective Time”), those directors assigned to Class II shall hold office for a term expiring at the second annual meeting of stockholders following the Effective Time, and those directors assigned to Class III shall hold office for a term expiring at the third annual meeting of stockholders following the Effective Time. At each succeeding annual meeting of stockholders, a number of directors equal to the number of directors whose term expires at the time of such meeting (or, if less, the number of directors properly nominated and qualified for election) shall be elected to hold office until the third succeeding annual meeting of stockholders after their election.

B.Subject to the rights of the holders of any series of preferred stock then outstanding, newly created directorships resulting from any increase in the authorized number of directors or any vacancies in the Board of Directors resulting from death, resignation, retirement, disqualification, removal from office or other cause shall be filled solely by a majority vote of the directors then in office, although less than a quorum, or by a sole remaining director. If there are no directors in office, then an election of directors may be held in the manner provided by statute. Directors chosen pursuant to any of the foregoing provisions shall hold office for a term expiring at the Annual Meeting of Stockholders at which the term of the class to which they have been elected expires and until their successors are duly elected and have qualified or until their earlier resignation or removal. Additional directorships resulting from an increase in the number of directors pursuant to paragraph A of this Article VI shall be apportioned among the three classes as equally as possible. No decrease in the number of directors constituting the Board of Directors shall shorten the term of any incumbent director. In the event of a vacancy in the Board of Directors, the remaining directors, except as otherwise provided by law, or by the certificate of incorporation or the bylaws of the Corporation, may exercise the powers of the full board until the vacancy is filled.

C.Any director or the entire Board of Directors may be removed only for cause.

ARTICLE VII

A.No action required or permitted to be taken at any annual or special meeting of the stockholders may be taken without a meeting and the power of stockholders to consent in writing, without a meeting, to the taking of any action is specifically denied.

B.Special meetings of the stockholders of the Corporation may be called only by the Chairman of the Board or the Chief Executive Officer of the Corporation or by a resolution adopted by the affirmative vote of a majority of the Board of Directors, and any power of stockholders to call a special meeting of stockholders is specifically denied.

C.Advance notice of stockholder nominations for the election of directors and of business to be brought by stockholders before any meeting of the stockholders of the Corporation shall be given in the manner and to the extent provided in the bylaws of the Corporation.

ARTICLE VIII

A.Limitation on Liability. To the fullest extent permitted by the DGCL, as the same exists or as may hereafter be amended, 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.

B.Indemnification. Each person who is or was a director or officer of the Corporation or is or was serving at the request of the Corporation as a director, officer, employee or agent of another Corporation or of a partnership, joint venture, trust, employee benefit plan or other enterprise (including the heirs, executors, administrators or estate of such person), shall be indemnified and advanced expenses by the Corporation, in accordance with the bylaws of the Corporation, to the fullest extent authorized by the DGCL, as the same exists or may hereafter be amended (but, in the case of any such amendment, only to the extent that such amendment permits the Corporation to provide broader indemnification rights than said law permitted the Corporation to provide prior to such amendment) or any other applicable laws as presently or hereinafter in effect. The right to indemnification and advancement of expenses hereunder shall not be exclusive of any other right that any person may have or hereafter acquire under any statute, provision of the certificate of incorporation or bylaws of the Corporation, agreement, vote of stockholders or disinterested directors or otherwise.

C.Insurance. The Corporation may, to the fullest extent permitted by law, purchase and maintain insurance on behalf of any person who is or was a director, officer, employee or agent of the Corporation or another corporation, partnership, joint venture, trust, employee benefit plan 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 expense, liability or loss under the DGCL.

D.Repeal and Modification. Any repeal or modification of the foregoing provisions of this Article VIII shall not adversely affect any right or protection existing hereunder immediately prior to such repeal or modification.

ARTICLE IX

The affirmative vote of the holders of at least sixty-six and two-thirds percent (66- 2/3%) of the voting power of the shares of the capital stock of the Corporation entitled to vote generally in the election of directors, voting together as a single class, shall be required to amend in any respect or repeal this Article IX, Paragraph A of Article V, and Articles VI, VII and VIII.

* * *

IN WITNESS WHEREOF, this Restated Certificate of Incorporation, which only restates and integrates and does not further amend the provisions of the Certificate of Incorporation of this Corporation as heretofore amended or supplemented, there being no discrepancies between those provisions and the provisions of this Restated Certificate of Incorporation, and it having been duly adopted by the Corporation’s Board of Directors in accordance with Section 245 of the DGCL, has been executed by its duly authorized officer on the date set forth below.

RENEWABLE ENERGY GROUP, INC.

By: /s/ Chad Stone

Name: Chad Stone

Title: Chief Financial Officer

Date: March 5, 2019