Sec Form 4 Filing - Riverstone Echo GP, LLC @ Enviva Inc. - 2023-06-15

FORM 4 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 GP, LLC 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) 06/15/2023 (Street) NEW YORK, NY10019 4. If Amendment, Date Original Filed (MM/DD/YY) 6. Individual or Joint/Group Filing (Check Applicable Line) _____ Form filed by One Reporting Person __ X __ 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 06/15/2023 C 3,977,723 ( 1 ) A 32,416,420 I See Footnotes ( 3 ) ( 4 )

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 Series A Preferred Stock ( 2 ) 06/15/2023 C 3,977,723 ( 2 ) ( 2 ) Common Stock 3,977,723 $ 0 0 I See Footnotes ( 3 ) ( 4 )

Reporting Owners Reporting Owner Name / Address Relationships Director 10% Owner Officer Other Riverstone Echo GP, LLC C/O RIVERSTONE HOLDINGS LLC 712 FIFTH AVENUE, 36TH FLOOR NEW YORK, NY10019 X X Riverstone Echo Partners, L.P. C/O RIVERSTONE HOLDINGS LLC 712 FIFTH AVENUE, 36TH FLOOR NEW YORK, NY10019 X X Riverstone ECF GP, LLC C/O RIVERSTONE HOLDINGS LLC 712 FIFTH AVENUE, 36TH FLOOR NEW YORK, NY10019 X X Riverstone Echo Rollover GP, LLC C/O RIVERSTONE HOLDINGS LLC 712 FIFTH AVENUE, 36TH FLOOR NEW YORK, NY10019 X X Riverstone Echo Rollover Holdings, L.P. C/O RIVERSTONE HOLDINGS LLC 712 FIFTH AVENUE, 36TH FLOOR NEW YORK, NY10019 X Riverstone Echo Continuation Holdings, L.P. C/O RIVERSTONE HOLDINGS LLC 712 FIFTH AVENUE, 36TH FLOOR NEW YORK, NY10019 X X Riverstone Echo PF Holdings, L.P. C/O RIVERSTONE HOLDINGS LLC 712 FIFTH AVENUE, 36TH FLOOR NEW YORK, NY10019 X X Signatures RIVERSTONE ECHO GP, LLC By: /s/ Peter Haskopoulos, Managing Director 06/20/2023 Signature of Reporting Person Date RIVERSTONE ECHO PARTNERS, L.P. By: Riverstone Echo GP, LLC, its general partner, By: /s/ Peter Haskopoulos, Managing Director 06/20/2023 Signature of Reporting Person Date RIVERSTONE ECF GP, LLC By: /s/ Peter Haskopoulos, Managing Director 06/20/2023 Signature of Reporting Person Date RIVERSTONE ECHO ROLLOVER GP, LLC By: /s/ Peter Haskopoulos, Managing Director 06/20/2023 Signature of Reporting Person Date RIVERSTONE ECHO ROLLOVER HOLDINGS, L.P. By: Riverstone Echo Rollover GP, LLC, its general partner, By: /s/ Peter Haskopoulos, Managing Director 06/20/2023 Signature of Reporting Person Date RIVERSTONE ECHO CONTINUATION HOLDINGS, L.P. By: Riverstone ECF GP, LLC, its general partner, By: /s/ Peter Haskopoulos, Managing Director 06/20/2023 Signature of Reporting Person Date RIVERSTONE ECHO PF HOLDINGS, L.P. By: Riverstone ECF GP, LLC, its general partner, By: /s/ Peter Haskopoulos, Managing Director 06/20/2023 Signature of Reporting Person Date

Explanation of Responses:

( 1 )Includes 1,969,002 shares of Common Stock, par value $0.001 (the "Common Stock"), of Enviva Inc. (the "Issuer") held by Riverstone Echo Continuation Holdings, L.P. ("Echo Continuation Holdings"), 267,869 shares of Common Stock held by Riverstone Echo Rollover Holdings, L.P. ("Echo Rollover Holdings"), and 1,740,852 shares of Common Stock held by Riverstone Echo PF Holdings, L.P. ("PF Holdings"). ( 2 )Each share of Series A Preferred Stock ("Preferred Share") was convertible into one share of Common Stock of the Issuer, subject to adjustment for any stock dividends, splits, combinations and similar events. The conversion of the Preferred Shares to shares of Common Stock of the Issuer occurred automatically on June 15, 2023 upon stockholder approval of a proposal to issue Common Stock upon conversion of the Preferred Shares for purposes of Rule 312.03 of the New York Stock Exchange Listed Company Manual. ( 3 )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"). ( 4 )ECF GP is the general partner of each of Echo Continuation Holdings and PF Holdings. Echo Rollover GP is the general partner of Echo Rollover Holdings. 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 Echo Continuation Holdings, Echo 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.

Remarks: Due to limitations of the electronic filing system, Riverstone Holdings LLC, Riverstone Management Group, L.L.C., Riverstone/Gower Mgmt Co Holdings, L.P., David M. Leuschen, and Pierre F. Lapeyre are filing a separate Form 4.

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).

** Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).

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