Congress Wants to Keep the Hash Rate American: New Bill Targets China's Grip on Bitcoin Mining Rigs

America holds roughly 38% of global Bitcoin mining capacity, yet 97% of the specialized hardware powering that position comes from Chinese manufacturers. It's a bit like owning the world's biggest poker table but importing every single chair from a guy who also happens to run a competing casino across town. Senators Bill Cassidy and Cynthia Lummis introduced the Mined in America Act on March 30 to address that glaring gap, proposing certification, domestic manufacturing support, and codification of President Donald Trump's Strategic Bitcoin Reserve. Nothing says "America First" quite like legislating your way out of a supply chain dependency that makes your mining farms look like组装玩具.

The bill aims to unwind what backers frame as a national industrial vulnerability: leading the world in mining activity while relying on adversary-linked manufacturers for the machines that enable it. Hashrate Index's January 2026 update places US Bitcoin mining capacity at roughly 37%-38% of the global total, around 400 exahashes per second. Cassidy's office cites 97% of mining hardware coming from China. That's not just a dependency—that's a financial dependency with extra steps. The US is essentially running the most powerful computational network on the planet while the hardware equivalent of "made in China" stickers adorn roughly every single rig in the room.

The legislation proposes a voluntary "Mined in America" certification administered by Commerce. Certified facilities would phase out mining hardware linked to foreign adversaries. NIST and the Manufacturing Extension Partnership would support domestic hardware manufacturing by drawing on existing federal