MP Materials: the mines it operates or owns, and what they report

MP Materials is a listed company headquartered in United States (NYSE: MP). This site lists 1 operation tied to it, for rare earths: it operates 1 and holds an interest in 0 more. On the operations here where a whole-operation figure in metal content can be stated, its interests add up to about 50,700 tonnes of rare earths (13% of world output). That leaves out operations without such a figure, so it is not the company's total.

Its operations on this site

Operations of MP Materials
Operation	Commodity and country	Role	Interest	Whole-operation output	Share of world output
Mountain Pass hard-rock mine	rare earths United States	Operator	100% as of 31 December 2025	50,692 MTs (metric tons) of REO contained in rare earth concentrate ('REO Production Volume') CY2025	13%

How much is that on its interests?

rare earths: 50,700 tonnes of content across 1 operation, about 13% of world output. Periods differ by operation (CY2025).

Computed as each operation's whole-operation output in metal content multiplied by the interest shown. Operations whose output is stated in another form, or only as the owner's share, are left out of this sum, so it understates what the company controls.

Sources

MP Materials Corp.: Form 10-K for the year ended 31 December 2025 (annual report (SEC 10-K, filed 2026-02-26), FY2025 (calendar), with 2024 and 2023 comparatives). Opened 3 November 2026.

The corporate facts above (headquarters, type, listing) come from the sources listed; no stock prices, valuations or executives are shown. Ownership and output are on the date and period stated on each operation's page. The list covers operations with a published figure for the commodities on this site, so it is not the company's full portfolio.

Made with AI assistance and checked against the sources by a second, independent pass; no professional review took place. How the site is made. To report an error, contact us.