FORM 4 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
or Section 30(h) of the Investment Company Act of 1940
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Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).
1. Name and Address of Reporting Person *
Litinsky James H.

(Last) (First) (Middle)
6720 VIA AUSTI PARKWAY, SUITE 450

(Street)
LAS VEGAS NV 89119

(City) (State) (Zip)
2. Issuer Name and Ticker or Trading Symbol
MP Materials Corp. / DE [ MP ]
5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
X Director 10% Owner
X Officer (give title below) Other (specify below)
Chairman and CEO
3. Date of Earliest Transaction (Month/Day/Year)
09/16/2021
4. If Amendment, Date of Original Filed (Month/Day/Year)
6. Individual or Joint/Group Filing (Check Applicable Line)
X Form filed by One Reporting Person
Form filed by More than One Reporting Person
Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3) 2. Transaction Date (Month/Day/Year) 2A. Deemed Execution Date, if any (Month/Day/Year) 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
Class A Common Stock 09/16/2021   S   872,248 D $ 34.62 16,024,773 I (1) Held by James Henry Litinsky, Trustee of James Henry Litinsky Revocable Trust u/a/d 10/19/2011 (1)
Class A Common Stock 09/16/2021   S   574,491 D $ 34.62 10,554,449 I (2) (3) Held by JHL Capital Group Holdings One LLC (2) (3)
Class A Common Stock 09/16/2021   S   1,707,528 D $ 34.62 31,370,398 I (2) (3) Held by JHL Capital Group Holdings Two LLC (2) (3)
Class A Common Stock 09/16/2021   S   121 D $ 34.62 2,217 I (2) (3) Held by JHL Capital Group LLC (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 (Month/Day/Year) 3A. Deemed Execution Date, if any (Month/Day/Year) 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 (Month/Day/Year) 7. Title and Amount of Securities Underlying Derivative Security (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: 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
Explanation of Responses:
1. James Litinsky as sole trustee of the James Henry Litinsky, Trustee of James Henry Litinsky Revocable Trust u/a/d 10/19/2011.
2. JHL Capital Group Master Fund L.P., a Cayman Islands limited partnership ("JHL Master Fund"), is the 100% owner of each of JHL Capital Group Holdings One LLC and JHL Capital Group Holdings Two LLC. JHL Capital Group Master Fund GP Ltd., a Cayman Islands exempted company ("JHL Master Fund GP"), is the general partner of JHL Master Fund. JHL Capital Group LLC, a Delaware limited liability company ("JHL Capital Group"), is the investment manager of JHL Master Fund, and is also the 100% owner of JHL Master Fund GP. JHL Capital Group L.P. and Mr. Litinsky may be deemed to beneficially own the shares held by JHL Capital Group LLC. James H. Litinsky holds a controlling interest in JHL Capital Group L.P. and serves as Chief Executive Officer of JHL Capital Group, as well as director of JHL Master Fund GP.
3. Accordingly, JHL Master Fund, JHL Master Fund GP, JHL Capital Group, JHL Capital Group L.P. and Mr. Litinsky may be deemed to beneficially own MP Materials Corp. (the "Issuer") Class A common stock ("Shares") to be held directly by JHL Capital Group Holdings One LLC and JHL Capital Group Holdings Two LLC. Mr. Litinsky disclaims any beneficial ownership in the Shares described in the prior sentence, other than to the extent of any pecuniary interest he may have therein, directly or indirectly.
/s/ Elliot D. Hoops, Attorney-In-Fact for James H. Litinsky 09/20/2021
** Signature of Reporting Person Date
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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POA DOCUMENT
POWER OF ATTORNEY

Know all by these presents, that the undersigned hereby makes, constitutes and
appoints each of Elliot Hoops and Ryan Corbett, or any of them acting
individually, and with full power of substitution, the undersigned's true and
lawful attorney-in-fact to:

(1)  prepare, execute in the undersigned's name and on the undersigned's behalf,
and submit to the U.S. Securities and Exchange Commission (the "SEC") a Form ID,
including amendments thereto, and any other documents necessary or appropriate
to obtain codes and passwords enabling the undersigned to make electronic
filings with the SEC of reports required by Section 16(a) of the Securities
Exchange Act of 1934 or any rule or regulation of the SEC;

(2)  execute for and on behalf of the undersigned, in the undersigned's capacity
as an officer and/or director of MP Materials Corp., a Delaware corporation (the
"Company"), Forms 3, 4, and 5, including amendments thereto, in accordance with
Section 16(a) of the Securities Exchange Act of 1934 and the rules and
regulations thereunder;

(3)  do and perform any and all acts for and on behalf of the undersigned which
may be necessary or desirable to complete and execute any such Form 3, 4, or 5,
complete and execute any amendment or amendments thereto, and timely file such
form with the SEC and any stock exchange or similar authority; and

(4) take any other action of any type whatsoever in connection with the
foregoing which, in the opinion of such attorney-in-fact, may be of benefit to,
in the best interest of, or legally required by, the undersigned, it being
understood that the documents executed by such attorney-in-fact on behalf of the
undersigned pursuant to this Power of Attorney shall be in such form and shall
contain such terms and conditions as such attorney-in-fact may approve in such
attorney-in-fact's discretion.

The undersigned hereby grants to each such attorney-in-fact full power and
authority to do and perform any and every act and thing whatsoever requisite,
necessary, or proper to be done in the exercise of any of the rights and powers
herein granted, as fully to all intents and purposes as the undersigned might or
could do if personally present, with full power of substitution or revocation,
hereby ratifying and confirming all that such attorney-in-fact, or such
attorney-in-fact's substitute or substitutes, shall lawfully do or cause to be
done by virtue of this power of attorney and the rights and powers herein
granted. The undersigned acknowledges that the foregoing attorneys-in-fact, in
serving in such capacity at the request of the undersigned, are not assuming,
nor is the Company assuming, any of the undersigned's responsibilities to comply
with Section 16 of the Securities Exchange Act of 1934.

This Power of Attorney shall remain in full force and effect until the
undersigned is no longer required to file Forms 3, 4, and 5 with respect to the
undersigned's holdings of and transactions in securities issued by the Company,
unless earlier (a) revoked by the undersigned in a signed writing delivered to
the foregoing attorneys-in-fact or (b) superseded by a new power of attorney
regarding the purposes outlined herein at a later date.

IN WITNESS WHEREOF, the undersigned has caused this Power of Attorney to be
executed as of this 19 day of May, 2021.

/s/ James H. Litinsky
James H. Litinsky