Oct 7 (Reuters) - The Trump administration is ramping up efforts to secure U.S. supply chains for critical minerals and semiconductors by converting federal grants to companies into equity stakes, aimed at reducing reliance on China.

The administration has taken or discussed stakes in several companies as part of the shift to direct ownership from traditional subsidies.

Following are the companies linked to the strategic investment push:

Trilogy Metals

Stake acquired: 10%, investment includes warrants to purchase an additional 7.5%

Project: Upper Kobuk Mineral Projects (UKMP) in Alaska, a joint venture owned by Trilogy Metals and Australian miner South32 S32.AX.

Details: The White House will invest about $35.6 million for the development of critical mineral resources at the UKMP, which is located in Alaska's Ambler mining district.

Trump also signed an executive order directing his administration to permit an access road to the Ambler mining district.

Strategic Value: Ambler mining district is a mineral-rich area with copper, zinc and lead deposits.

CRITICAL METALS CORPORATION

Stake under discussion: About 8%

Project: Tanbreez rare earths deposit, Greenland

Strategic value: Trump administration officials have discussed taking a stake in Critical Metals, four people familiar with the discussions told Reuters.

A deal would give Washington a direct interest in the largest rare earths project in Greenland, the Arctic territory that Trump once suggested buying.

Lithium Americas

Stake acquired: 5% in parent company and 5% in Thacker Pass JV with General Motors GM.N

Project: Thacker Pass lithium mine, Nevada

Strategic value: The project is seen as a linchpin in building a domestic supply chain part of Washington's long-standing drive to boost U.S. production of lithium, a metal used to make batteries for electric vehicles and other electronics.

MP Materials Corp.

Stake acquired: About 15%

Project: Mountain Pass rare earth mine, California

Strategic value: MP operates the only U.S. rare earths mine and is working to boost domestic processing and magnet production.

The U.S. Department of Defense (DoD) will become the largest shareholder in Las Vegas-based MP, making it Washington's most high-profile investment to date in the critical minerals sector.

USA Rare Earth

Status: In discussions

Details: CEO Barbara Humpton told CNBC that the company was in close talks with the White House while responding to a question about potential interest in striking a deal with the Trump administration.

Strategic value: USA Rare Earth has been developing a mine in Sierra Blanca, Texas, and a neo magnet manufacturing facility in Stillwater, Oklahoma, which is expected to go commercial in the first half of 2026

Intel

Stake acquired: 9.9%

Strategic value: The investment strengthens U.S. supply chain security and supports Intel's plans to build and expand advanced manufacturing facilities domestically.