The US Commerce Department has introduced new export restrictions aimed at advanced semiconductor technology tied to TSMC and Nvidia, according to Reuters. The updated rules focus on high-end process nodes used in artificial intelligence accelerators and take effect immediately.

The move adds another layer of pressure on the global chip supply chain as Washington continues to limit China's access to cutting-edge computing hardware. TSMC, the world’s largest contract chipmaker, and Nvidia, a leading supplier of AI processors, both sit at the center of that effort.

The restrictions are the latest sign that advanced semiconductors remain a strategic battleground in the US-China technology rivalry. For chipmakers, the changes could force supply-chain adjustments, compliance reviews, and possible delays for some customers.

Reuters said the updated controls are effective right away, underscoring how quickly the policy shift could affect companies that design, manufacture, or ship sensitive chip technology tied to advanced AI systems.