MP MATERIALS CORP. lobbying for MP MATERIALS CORP.

Filing Registration

Reporting period

4th Quarter 2025

Oct 1 - Dec 31 · Posted Dec 5, 2025

Money reported

None

Registrations and no-activity reports carry no figure.

Client based in

Nevada

Official filing document

Lobbyists on this filing 1

REBECCA ROSEN New on this filing

Previously held: Professional Staff Member - Senate En. & Nat. Res. Cmte.

A "covered position" is a government job the lobbyist held in the 20 years before registering, which the law requires them to name. See the revolving door for former members of Congress across all filings.

Lobbying activity 4

Taxation/Internal Revenue Code

Issues related to U.S. rare earth supply chain competitiveness; mining and refining of materials; production of metals and magnets; education and awareness thereof; energy and defense policy; and tax and environmental policy.

Defense

Issues related to U.S. rare earth supply chain competitiveness; mining and refining of materials; production of metals and magnets; education and awareness thereof; energy and defense policy; and tax and environmental policy.

Natural Resources

Issues related to U.S. rare earth supply chain competitiveness; mining and refining of materials; production of metals and magnets; education and awareness thereof; energy and defense policy; and tax and environmental policy.

Trade (domestic/foreign)

Issues related to U.S. rare earth supply chain competitiveness; mining and refining of materials; production of metals and magnets; education and awareness thereof; energy and defense policy; and tax and environmental policy.