MP Materials Corp. / DE

Item 8.01 Other Events. On November 19, 2025, MP Materials Corp. (the “Company”) issued a press release that it has partnered with the U.S. Department of War (“DOW”) to establish a strategic joint venture with Maaden, Saudi Arabia’s flagship mining company, to develop a rare earth refinery in the Kingdom of Saudi Arabia. This agreement follows the historic critical minerals cooperation framework agreement reached between the United States and the Kingdom of Saudi Arabia. A copy of the Company’s press release is attached hereto as Exhibit 99.1 and is hereby incorporated by reference in this Item 8.01. Cautionary Note Regarding Forward-Looking Statements This Current Report on Form 8-K contains certain statements that are not historical facts and are forward-looking statements for purposes of the safe harbor provisions under the United States Private Securities Litigation Reform Act of 1995. Forward-looking statements predict or indicate future events or trends or that are not statements of historical matters. Forward-looking statements may be identified by the use of words such as “estimate,” “plan,” “project,” “forecast,” “intend,” “expect,” “anticipate,” “believe,” “seek,” “will,” “target,” or similar expressions that predict or indicate future events or trends or that are not statements of historical matters, including statements related to the joint venture between the Company, U.S. Department of War and Maaden to develop a rare earth refinery in the Kingdom of Saudi Arabia. These forward-looking statements are subject to a number of risks and uncertainties, including risks relating to (i) the parties ability to enter in to definitive agreements establishing a joint venture for the purposes of constructing and operating a rare earth refinery in the Kingdom of Saudi Arabia, (ii) the timing and achievement of expected business milestones related to the joint venture, (iii) heightened scrutiny associated with government partnerships and contracts, including the availability of funding now and in the future, and (iv) those risk factors discussed in the Company’s filings with the Securities and Exchange Commission, including Annual Reports on Form 10-K, Quarterly Reports on Form 10-Q, Current Reports on Form 8-K and other documents filed by the Company with the Securities and Exchange Commission.