The US Bureau of Industry and Security (BIS) issued new guidance extending license requirements to advanced AI chips sold to Chinese-owned subsidiaries abroad, closing a loophole left after the Trump administration rescinded the Biden-era AI Diffusion Rule in May 2025. The guidance targets top-tier processors such as Nvidia's Rubin and Blackwell families and AMD's MI350x accelerator. Industry sources report that during the enforcement gap, hundreds of thousands of advanced chips reached Chinese-linked buyers through hubs like Singapore and Malaysia. Exporters must now verify the ultimate parent of every buyer, tightening compliance for distributors and cloud resellers. While direct earnings impact may be limited—Nvidia reported zero Data Center Hopper shipments to China in Q1 2027 compared to $4.6 billion a year earlier—the move could redirect capacity to US and allied customers. AI-themed crypto tokens often trade in sympathy with US semiconductors, suggesting potential correlated weakness.

Key facts

• BIS extends AI chip license rules to sales to Chinese-owned firms abroad, closing a loophole.
• Targeted chips include Nvidia's Rubin and Blackwell families and AMD's MI350x.
• Hundreds of thousands of chips reached Chinese-linked buyers during the enforcement gap.
• Exporters must now verify the ultimate parent of every buyer, increasing compliance burden.
• Past GPU smuggling ring operators were charged with $2.5 billion in diversions.