3 PROTON LITHIUM INC.

Lobbying client · Nevada · filed 2025 to 2026

Privately-held lithium company

$300,000 Reported spend

6 Filings counted

1 Firms hired

0 Bills named

Spend is reported income plus in-house expenses across 6 filings. Everything on this page is grouped by the client's LDA id (213517), not by name.

Firms hired 1

CORNERSTONE GOVERNMENT AFFAIRS, INC. $300,000 6 filings

Reported by year 2 years

2026 $100,000 2 filings
2025 $200,000 4 filings

Issues lobbied 2

Natural Resources 6
Defense 1

The count is how many filings named that issue area. A filing reports one lump figure covering every issue on it, so the money above cannot be split between them.

Agencies and chambers lobbied 9

Bureau of Land Management (BLM) 6
HOUSE OF REPRESENTATIVES 6
Interior, Dept of (DOI) 6
SENATE 6
Executive Office of the President (EOP) 5
Natl Security Council (NSC) 5
Export-Import Bank of the United States (EXIM Bank) 4
Commerce, Dept of (DOC) 3
Defense, Dept of (DOD) 1

Recent filings 6 total

Q2

CORNERSTONE GOVERNMENT AFFAIRS, INC.

2nd Quarter (Apr 1 - June 30) 2026 · House · Senate · $50,000 income · posted Jul 14, 2026

View → Q1

CORNERSTONE GOVERNMENT AFFAIRS, INC.

1st Quarter (Jan 1 - Mar 31) 2026 · House · Senate · $50,000 income · posted Apr 14, 2026

View → Q4

CORNERSTONE GOVERNMENT AFFAIRS, INC.

4th Quarter (Oct 1 - Dec 31) 2025 · House · Senate · $50,000 income · posted Jan 7, 2026

View → Q3

CORNERSTONE GOVERNMENT AFFAIRS, INC.

3rd Quarter (July 1 - Sep 30) 2025 · House · Senate · $50,000 income · posted Oct 15, 2025

View → Q2

CORNERSTONE GOVERNMENT AFFAIRS, INC.

2nd Quarter (Apr 1 - June 30) 2025 · House · Senate · $50,000 income · posted Jul 17, 2025

View → Q1

CORNERSTONE GOVERNMENT AFFAIRS, INC.

1st Quarter (Jan 1 - Mar 31) 2025 · House · Senate · $50,000 income · posted Apr 19, 2025

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Source: federal Lobbying Disclosure Act filings, synced daily. Money is self-reported by the filer and often rounded. Lobbying is legal, disclosed activity.