Senators Bill Cassidy and Cynthia Lummis have introduced the Mined in America Act, a bill designed to boost domestic production of Bitcoin mining hardware and to put into law President Donald Trump’s executive order creating a Strategic Bitcoin Reserve. The proposal would establish a voluntary ‘Mined in America’ certification for crypto mining facilities and mining pools. Certified operations would be required to phase out mining equipment linked to designated foreign adversaries and to support growth of U.S.-made mining hardware.
The bill tasks the National Institute of Standards and Technology and the Manufacturing Extension Partnership with helping U.S. manufacturers develop more secure, energy-efficient ASIC miners. It also seeks to codify the Strategic Bitcoin Reserve referenced in the presidential executive order.
The U.S. became the top country by Bitcoin hashrate after China’s 2021 crackdown on mining and now controls roughly 38% of the network’s hashrate, more than twice that of second-place Russia. Despite that share of mining power, industry observers note heavy reliance on two Chinese manufacturers: Bitmain and MicroBT are estimated to produce about 97% of current Bitcoin mining hardware.
Supporters of the bill argue it would break that dependence by creating a cycle of domestic manufacturing, certified mining operations, improved grid-focused energy infrastructure, and a supply channel to the Strategic Bitcoin Reserve. Dennis Porter, CEO of Satoshi Action Fund, called the bill a way to build that domestic ecosystem.
The U.S. mining industry faced disruption beginning in late 2024 when U.S. Customs and Border Protection paused shipments of thousands of Bitmain ASIC miners at U.S. ports. Mining firm Luxor Technology reported being affected; in March 2025 Luxor COO Ethan Vera said the miners were seized after being mistakenly believed to be illegally imported radio frequency devices.
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