Item 15. EXHIBITS AND FINANCIAL STATEMENT SCHEDULES

(a) The following documents are filed as part of this Annual Report:

(1)Report of Independent Registered Public Accounting Firm

Auditor Name: KPMG LLP

Auditor Location: Denver, CO

Auditor Firm ID: 185

Financial Statements (see Item 8. “Financial Statements and Supplementary Data” and incorporated herein by reference).

(2)Financial Statement Schedules (Schedules to the Financial Statements have been omitted because the information required to be set forth therein is not applicable or is shown in the accompanying Financial Statements or notes thereto).

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(3)Exhibits (incorporated herein by reference or filed as part of this Annual Report).

Ex. No.						Description
3.1						Second Amended and Restated Certificate of Incorporation of MP Materials Corp. (incorporated herein by reference to Exhibit 3.1 to the Company’s Current Report on Form 8-K filed on November 17, 2020).
3.2						Amended and Restated Bylaws of MP Materials Corp. (incorporated herein by reference to Exhibit 3.2 to the Company’s Current Report on Form 8-K filed on November 17, 2020).
3.3						Form of Certificate of Designations of Series A Cumulative Perpetual Convertible Preferred Stock of MP Materials Corp. (incorporated herein by reference to Exhibit 3.1 to the Company’s Current Report on Form 8-K filed on July 10, 2025).
4.1						Description of Securities (incorporated herein by reference to Exhibit 4.1 to the Company’s Annual Report on Form 10-K for the year ended on December 31, 2021).
4.2						Indenture, dated as of March 26, 2021, by and between MP Materials Corp. and U.S. Bank National Association, as trustee (incorporated herein by reference to Exhibit 4.1 to the Company’s Current Report on Form 8-K filed on March 26, 2021).
4.3						Form of 0.25% Green Convertible Senior Notes due 2026 (included as Exhibit A to Exhibit 4.1) (incorporated herein by reference to Exhibit 4.2 to the Company’s Current Report on Form 8-K filed on March 26, 2021).
4.4						Indenture, dated as of March 7, 2024, by and between MP Materials Corp. and U.S. Bank Trust Company, National Association, as trustee (incorporated herein by reference to Exhibit 4.1 to the Company’s Current Report on Form 8-K filed on March 8, 2024).
4.5						Form of 3.00% Convertible Senior Notes due 2030 (included as Exhibit A to Exhibit 4.1) (incorporated herein by reference to Exhibit 4.2 to the Company’s Current Report on Form 8-K filed on March 8, 2024).
10.1						Amended and Restated Registration Rights Agreement, dated November 17, 2020, by and between MP Materials Corp.(f/k/a Fortress Value Acquisition Corp.) and the restricted stockholders (incorporated herein by reference to Exhibit 10.6 to the Company’s Current Report on Form 8-K filed on November 17, 2020).
10.2						Registration Rights Agreement, dated as of March 26, 2021, by and among MP Materials Corp. and BofA Securities, Inc. and Deutsche Bank Securities Inc., as representatives of the initial purchasers of the Convertible Notes (incorporated herein by reference to Exhibit 10.1 to the Company's Current Report on Form 8-K filed on March 26, 2021).
10.3†						MP Materials Corp. 2020 Stock Incentive Plan (incorporated herein by reference to Exhibit 10.7 to the Company’s Current Report on Form 8-K filed on November 17, 2020).
10.4						Form of Indemnification Agreement (incorporated herein by reference to Exhibit 10.8 to the Company’s Current Report on Form 8-K filed on November 17, 2020).
10.5†						Employment Agreement, dated November 18, 2021, effective as of January 1, 2022, between MP Materials Corp. and James H. Litinsky (incorporated herein by reference to Exhibit 10.1 to the Company’s Current Report on Form 8-K filed on November 19, 2021).
10.6†						Amendment to Employment Agreement, dated January 10, 2024, between MP Materials Corp. and James H. Litinsky (incorporated herein by reference to Exhibit 10.3 to the Company’s Quarterly Report on Form 10-Q for the quarterly period ended March 31, 2024).
10.7†						Employment Agreement, dated November 18, 2021, effective as of January 1, 2022, between MP Materials Corp. and Ryan Corbett (incorporated herein by reference to Exhibit 10.2 to the Company’s Current Report on Form 8-K filed on November 19, 2021).
10.8†						Amendment to Employment Agreement, dated January 10, 2024, between MP Materials Corp. and Ryan Corbett (incorporated herein by reference to Exhibit 10.4 to the Company’s Quarterly Report on Form 10-Q for the quarterly period ended March 31, 2024).
10.9†						Employment Agreement, dated November 18, 2021, effective as of January 1, 2022, between MP Materials Corp. and Michael Rosenthal (incorporated herein by reference to Exhibit 10.3 to the Company’s Current Report on Form 8-K filed on November 19, 2021).
10.10†						Amendment to Employment Agreement, dated January 10, 2024, between MP Materials Corp. and Michael Rosenthal (incorporated herein by reference to Exhibit 10.5 to the Company’s Quarterly Report on Form 10-Q for the quarterly period ended March 31, 2024).

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Ex. No.						Description
10.11†						Employment Agreement, dated November 18, 2021, effective as of January 1, 2022, between MP Materials Corp. and Elliot D. Hoops (incorporated herein by reference to Exhibit 10.4 to the Company’s Current Report on Form 8-K filed on November 19, 2021).
10.12†						Amendment to Employment Agreement, dated January 10, 2024, between MP Materials Corp. and Elliot D. Hoops (incorporated herein by reference to Exhibit 10.6 to the Company’s Quarterly Report on Form 10-Q for the quarterly period ended March 31, 2024).
10.13†						Employment Agreement, effective as of April 4, 2025, by and between MP Materials Corp. and David G. Infuso (incorporated herein by reference to Exhibit 10.1 to the Company’s Current Report on Form 8-K filed on April 4, 2025).
10.14†						Form of MP Materials Corp. 2020 Stock Incentive Plan Restricted Stock Unit Agreement (incorporated herein by reference to Exhibit 10.3 to the Company’s Quarterly Report on Form 10-Q for the quarterly period ended June 30, 2021).
10.15†						Form of MP Materials Corp. 2020 Stock Incentive Plan Non-Employee Director Restricted Stock Unit Award Agreement (incorporated herein by reference to Exhibit 10.4 to the Company’s Quarterly Report on Form 10-Q for the quarterly period ended June 30, 2021).
10.16†						Form of MP Materials Corp. 2020 Stock Incentive Plan Restricted Stock Award Agreement (incorporated herein by reference to Exhibit 10.1 to the Company’s Quarterly Report on Form 10-Q for the quarterly period ended September 30, 2021).
10.17†						Form of MP Materials Corp. 2020 Stock Incentive Plan Restricted Stock Unit Award Agreement (incorporated herein by reference to Exhibit 10.15 to the Company’s Annual Report on Form 10-K for the year ended on December 31, 2021).
10.18†						Form of MP Materials Corp. 2020 Stock Incentive Plan Restricted Stock Unit Award Agreement with Performance Conditions (incorporated herein by reference to Exhibit 10.1 to the Company’s Quarterly Report on Form 10-Q for the quarterly period ended March 31, 2023).
10.19+++						Offtake Agreement, dated as of March 4, 2022, between MP Mine Operations LLC and Shenghe Resources (Singapore) International Trading PTE LTD. (incorporated herein by reference to Exhibit 10.1 to the Company’s Quarterly Report on Form 10-Q for the quarterly period ended March 31, 2022).
10.20+++						Offtake Agreement between MP Mine Operations LLC, MP International Sales LLC and Shenghe Resources (Singapore) International Trading PTE. LTD. dated January 16, 2024 (incorporated herein by reference to Exhibit 10.2 to the Company’s Quarterly Report on Form 10-Q for the quarterly period ended March 31, 2024).
10.21†						MP Materials Corp. 2021 Director Deferred Compensation Plan (incorporated herein by reference to Exhibit 10.14 to the Company’s Annual Report on Form 10-K for the year ended December 31, 2020).
10.22						Form of Capped Call Confirmation (incorporated herein by reference to Exhibit 10.1 to the Company’s Current Report on Form 8-K filed on March 8, 2024).
10.23++						Transaction Agreement, dated as of July 9, 2025, between MP Materials Corp. and the United States Department of Defense (incorporated herein by reference to Exhibit 10.1 to the Company’s Current Report on Form 8-K filed on July 10, 2025).
10.24						Subscription Agreement, dated as of July 9, 2025, between MP Materials Corp. and the United States Department of Defense (incorporated herein by reference to Exhibit 10.2 to the Company’s Current Report on Form 8-K filed on July 10, 2025).
10.25						Form of Warrant to be issued by MP Materials Corp. to the United States Department of Defense (incorporated herein by reference to Exhibit 10.3 to the Company’s Current Report on Form 8-K filed on July 10, 2025).
10.26						Form of Registration Rights Agreement between MP Materials Corp. and the United States Department of Defense (incorporated herein by reference to Exhibit 10.4 to the Company’s Current Report on Form 8-K filed on July 10, 2025).
10.27						Offtake Agreement, dated as of July 9, 2025, between MP 10X Development, LLC and the United States Department of Defense (incorporated herein by reference to Exhibit 10.5 to the Company’s Current Report on Form 8-K filed on July 10, 2025).

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Ex. No.						Description
10.28++						Price Protection Agreement, dated as of July 9, 2025, between MP Materials Corp. and the United States Department of Defense (incorporated herein by reference to Exhibit 10.6 to the Company’s Current Report on Form 8-K filed on July 10, 2025).
10.29						Form of Promissory Note between MP Materials Corp. and the United States Department of Defense (incorporated herein by reference to Exhibit 10.7 to the Company’s Current Report on Form 8-K filed on July 10, 2025).
10.30						Credit Agreement, dated as of August 25, 2025, by and among MP Materials Corp., as the parent borrower, JPMorgan Chase Bank, N.A., as the administrative agent and the collateral agent, and the lenders and L/C issuers party thereto (incorporated herein by reference to Exhibit 10.1 to the Company’s Current Report on Form 8-K filed on August 25, 2025).
10.31+++						Aircraft Operating Lease Agreement, dated November 13, 2024, effective as of January 1, 2025, by and between MP Materials Corp. and 2022 AR545 Statutory Trust (incorporated herein by reference to Exhibit 10.22 to the Company’s Annual Report on Form 10-K for the year ended December 31, 2024).
10.32+++						Time-Sharing Agreement, dated November 13, 2024, effective as of January 1, 2025, by and between MP Materials Corp. and James H. Litinsky (incorporated herein by reference to Exhibit 10.23 to the Company’s Annual Report on Form 10-K for the year ended December 31, 2024).
19.1						MP Materials Corp. Insider Trading Policy (incorporated herein by reference to Exhibit 10.18 to the Company’s Annual Report on Form 10-K for the year ended December 31, 2023).
21.1*						Subsidiaries of the Registrant.
23.1*						Consent of KPMG LLP.
23.2*						Consent of SRK Consulting (U.S.), Inc.
23.3*						Consent of Adamas Intelligence Inc.
23.4*						Consent of SGS North America, Inc.
24.1*						Power of Attorney (included as part of signature page).
31.1*						CEO Certification pursuant to Rule 13a-14(a) or 15d-14(a) of the Securities Exchange Act of 1934, as adopted pursuant to Section 302 of the Sarbanes‑Oxley Act of 2002.
31.2*						CFO Certification pursuant to Rule 13a-14(a) or 15d-14(a) of the Securities Exchange Act of 1934, as adopted pursuant to Section 302 of the Sarbanes‑Oxley Act of 2002.
32.1**						CEO Certification pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes‑Oxley Act of 2002.
32.2**						CFO Certification pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes‑Oxley Act of 2002.
95.1*						Mine Safety Disclosure pursuant to Section 1503(a) of the Dodd-Frank Wall Street Reform and Consumer Protection Act.
96.1*						Technical Report Summary of SRK Consulting (U.S.), Inc. prepared for MP Materials Corp. and issued effective as of October 1, 2025.
97.1†						MP Materials Corp. Compensation Recoupment Policy (incorporated herein by reference to Exhibit 10.17 to the Company’s Annual Report on Form 10-K for the year ended December 31, 2023).
101.INS						Inline XBRL Instance Document - the instance document does not appear in the Interactive Data File because its XBRL tags are embedded within the Inline XBRL document.
101.SCH						Inline XBRL Taxonomy Extension Schema Document.
101.CAL						Inline XBRL Taxonomy Extension Calculation Linkbase Document.
101.DEF						Inline XBRL Taxonomy Extension Definition Linkbase Document.
101.LAB						Inline XBRL Taxonomy Extension Label Linkbase Document.
101.PRE						Inline XBRL Taxonomy Extension Presentation Linkbase Document.
104						Cover Page Inline XBRL File (included in Exhibit 101).
*						Filed herewith.

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Ex. No.						Description
**						Furnished herewith.
†						Indicates a management contract or compensatory plan or arrangement.
+						Annexes, schedules and/or exhibits have been omitted pursuant to Item 601(a)(5) of Regulation S-K. MP Materials Corp. agrees to furnish supplementally a copy of any omitted attachment to the SEC on a confidential basis upon request.
++						Certain portions of this exhibit (indicated by “[***]”) have been omitted pursuant to Regulation S-K, Item 601(b)(10).