Two US Republican senators have introduced the “Mined in America Act” to encourage more domestic manufacturing of Bitcoin mining hardware and to codify President Donald Trump’s executive order to establish a Strategic Bitcoin Reserve.
Introduced by Senators Bill Cassidy and Cynthia Lummis, the bill would create a voluntary “Mined in America” certification for crypto mining facilities and mining pools. Certified operations would be required to phase out mining equipment made by companies tied to “foreign adversaries” and to support domestic production of mining hardware.
“Digital asset mining is a big part of our economy. We should be doing it here in America,” Cassidy said in a statement.
The bill directs the National Institute of Standards and Technology and the Manufacturing Extension Partnership to assist US manufacturers in developing more secure and energy-efficient crypto mining equipment. It also seeks to codify the Strategic Bitcoin Reserve called for in President Trump’s executive order.
The US became the leading country by Bitcoin hashrate after China’s 2021 crackdown on mining and now hosts about 38% of the network’s hashrate, more than double that of second-place Russia. Despite that dominance, Dennis Porter, CEO of Satoshi Action Fund and a supporter of the bill, said about 97% of Bitcoin mining hardware is manufactured by two Chinese firms, Bitmain and MicroBT.
“The Mined in America Act breaks that dependency by building a virtuous cycle of domestic manufacturing, certified mining operations, grid-strengthening energy infrastructure and a pipeline to the Strategic Bitcoin Reserve,” Porter said.
The US Bitcoin mining industry was disrupted beginning in late 2024 when US Customs and Border Protection paused shipments of thousands of Bitmain ASIC miners at US ports. Mining firm Luxor Technology was among those affected; in March 2025 Luxor COO Ethan Vera told Cointelegraph the miners had been seized after being mistakenly believed to be illegally imported radio frequency devices.
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