After China tightened its control over mining in 2021, the U.S. became the leading country in BTC hash rate, accounting for 38%. This figure is double that of Russia, which holds the second position. However, 97% of mining equipment is produced by two Chinese companies—Bitmain and MicroBT.
To eliminate dependence on China, Bill Cassidy and Cynthia Lummis have introduced the Mined in America Act. The bill proposes a gradual transition away from equipment made by companies associated with "U.S. adversaries" in favor of American manufacturers. The Mined in America Act also requires the Department of Commerce to establish a "voluntary certification program" for mining pools and enterprises.