Sec Form 3 Filing - Riverstone Echo PF Holdings, L.P. @ Enviva Inc. - 2022-01-03

FORM 3 Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940

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1. Name and Address of Reporting Person Riverstone Echo PF Holdings, L.P. 2. Issuer Name and Ticker or Trading Symbol Enviva Inc. [ EVA] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) X __ Director X __ 10% Owner _____ Officer (give title below) _____ Other (specify below) (Last) (First) (Middle) C/O RIVERSTONE HOLDINGS LLC, 712 FIFTH AVENUE, 36TH FLOOR 3. Date of Earliest Transaction (MM/DD/YY) 01/03/2022 (Street) NEW YORK, NY10019 4. If Amendment, Date Original Filed (MM/DD/YY) 6. Individual or Joint/Group Filing (Check Applicable Line) __ X __ Form filed by One Reporting Person _____ Form filed by More than One Reporting Person (City) (State) (Zip)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned 1.Title of Security (Instr. 3) 2. Transaction Date (MM/DD/YY) 2A. Deemed Execution Date, if any (MM/DD/YY) 3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4) Code V Amount (A) or (D) Price Common Stock 27,797,923 I See Footnotes( 1 )( 2 )( 3 )

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned ( e.g. , puts, calls, warrants, options, convertible securities) 1. Title of Derivative Security (Instr. 3) 2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (MM/DD/YY) 3A. Deemed Execution Date, if any (MM/DD/YY) 4. Transaction Code (Instr. 8) 5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4, and 5) 6. Date Exercisable and Expiration Date (MM/DD/YY) 7. Title and Amount of Underlying Securities (Instr. 3 and 4) 8. Price of Derivative Security (Instr. 5) 9. Number of Derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4) 10. Ownership Form of Derivative Security: Direct (D) or Indirect (I) (Instr. 4) 11. Nature of Indirect Beneficial Ownership (Instr. 4) Code V (A) (D) Date Exercisable Expiration Date Title Amount or Number of Shares

Reporting Owners Reporting Owner Name / Address Relationships Director 10% Owner Officer Other Riverstone Echo PF Holdings, L.P. C/O RIVERSTONE HOLDINGS LLC 712 FIFTH AVENUE, 36TH FLOOR NEW YORK, NY10019 X X Signatures RIVERSTONE ECHO PF HOLDINGS, L.P. By: Riverstone ECF GP, LLC, its general partner, By: /s/ Peter Haskopoulos, Managing Director 01/10/2022 Signature of Reporting Person Date

Explanation of Responses:

( 1 )Includes 13,424,466 shares of Common Stock held of record by Riverstone Echo Continuation Holdings, L.P. ("Continuation Holdings"), 2,504,508 shares of Common Stock held of record by Riverstone Echo Rollover Holdings, L.P. ("Rollover Holdings"), and 11,868,949 shares of Common Stock held of record by Riverstone Echo PF Holdings, L.P. ("PF Holdings"). ( 2 )David M. Leuschen and Pierre F. Lapeyre, Jr. are the managing directors of Riverstone Management Group, L.L.C. ("Riverstone Management"), and have or share voting and investment discretion with respect to the securities beneficially owned by Riverstone Management, which is the general partner of Riverstone/Gower Mgmt Co Holdings, L.P., which is the sole member of Riverstone Holdings LLC, which is the sole member of Riverstone Echo GP, LLC, which is the general partner of Riverstone Echo Partners, L.P., which is the sole member of each of Riverstone ECF GP, LLC ("ECF GP") and Riverstone Echo Rollover GP, LLC ("Echo Rollover GP"). ECF GP is the general partner of each of Continuation Holdings and PF Holdings. Echo Rollover GP is the general partner of Rollover Holdings. ( 3 )(Continued) As a result of these relationships, each of these entities and individuals may be deemed to have or share beneficial ownership of the securities held of record by Continuation Holdings, Rollover Holdings, and PF Holdings. Each such entity or person disclaims beneficial ownership of such securities except to the extent of their respective pecuniary interest therein.

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.

* If the form is filed by more than one reporting person, see Instruction 4(b)(v).

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