X0306 4 2022-02-28 0 0001801368 MP Materials Corp. / DE MP 0001831746 Litinsky James H. 6720 VIA AUSTI PARKWAY, SUITE 450 LAS VEGAS NV 89119 1 1 1 0 Chairman and CEO Class A Common Stock 2022-02-28 4 S 0 944051 43.50 D 9610398 I Held by JHL Capital Group Holdings One LLC Class A Common Stock 2022-02-28 4 S 0 2805949 43.50 D 28564449 I Held by JHL Capital Group Holdings Two LLC Class A Common Stock 2217 I Held by JHL Capital Group LLC( Class A Common Stock 16024773 I Held by James Henry Litinsky, Trustee of James Henry Litinsky Revocable Trust u/a/d 10/19/2011 Class A Common Stock 800000 D 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. 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 issuer's Class A common stock 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. James Litinsky as sole trustee of the James Henry Litinsky, Trustee of James Henry Litinsky Revocable Trust u/a/d 10/19/2011. /s/ Elliot D. Hoops, Attorney-In-Fact for James H. Litinsky 2022-03-02