By Jarrett Renshaw and Ernest Scheyder

(Reuters) -Critical mineral companies are boosting lobbying efforts in Washington, hoping to share in the ambitious investments that U.S. President Donald Trump has pledged to firms deemed essential to national security, a Reuters review of public records and interviews with executives and officials showed.

At least a dozen companies — including lithium, copper, rare earths, and geothermal firms — have signed with major Washington lobbying firms since January, the review found.

There has been a sharp uptick in influence campaigns aimed at securing federal investment, permitting support and long-term procurement guarantees.

The White House has pivoted from a historical focus on industry subsidies to one focused on partial ownership of MP Materials,

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