Two US Republican senators have introduced the Mined in America Act, a bill aimed at shifting Bitcoin mining manufacturing back to the United States and enshrining a Strategic Bitcoin Reserve into law. The legislation was introduced on Monday by Senators Bill Cassidy and Cynthia Lummis. It builds on an earlier executive order signed by President Donald Trump to establish the reserve. The move reflects growing congressional interest in securing American dominance in the digital asset sector.
The bill proposes a voluntary certification program for crypto mining facilities and mining pools operating within the country. To qualify, certified facilities would need to phase out equipment manufactured by companies linked to foreign adversaries and commit to supporting the domestic production of mining hardware. Cassidy stated that digital asset mining represents a significant part of the US economy and should be conducted on American soil. The certification framework is intended to create a clear standard for what qualifies as a domestically grounded mining operation.
The legislation also directs the National Institute of Standards and Technology and the Manufacturing Extension Partnership to assist US manufacturers in developing mining equipment that is both more secure and more energy-efficient. This technical support component is designed to help American producers compete with established foreign suppliers. The bill further seeks to formally codify Trump’s executive order on the Strategic Bitcoin Reserve, giving the initiative a statutory foundation. Supporters argue this would provide greater long-term stability for the reserve program.
The US currently accounts for approximately 38% of the Bitcoin network’s total hashrate, making it the leading Bitcoin mining nation following China‘s crackdown on the industry in 2021. That figure is more than double the share held by second-place Russia. Despite this operational dominance, the manufacturing side of the industry remains heavily concentrated abroad. According to Dennis Porter, CEO of the Satoshi Action Fund and a supporter of the bill, roughly 97% of Bitcoin mining hardware is produced by two Chinese companies, Bitmain and MicroBT.
Porter described the legislation as a mechanism to break that dependency by creating what he called a virtuous cycle connecting domestic manufacturing, certified mining operations, energy infrastructure improvements, and a supply pipeline to the Strategic Bitcoin Reserve. His comments highlight the dual economic and national security motivations behind the bill. Reducing reliance on foreign-made hardware has become a priority for advocates who view the current supply chain as a vulnerability. The bill’s supporters argue that domestic manufacturing capacity is essential to long-term energy and financial security.
The US Bitcoin mining industry has already experienced disruptions tied to foreign hardware supply chains. Beginning in late 2024, US Customs and Border Protection paused shipments of thousands of Bitmain ASIC machines at American ports for several months. Mining company Luxor Technology was among the businesses affected by the delays. In March 2025, the firm’s chief operating officer, Ethan Vera, told reporters that the machines had been seized after being mistakenly identified as illegally imported radio frequency devices, underscoring the fragility of the current import-dependent model.
Originally reported by CoinTelegraph.
