President Donald Trump’s administration has barred Nvidia Corp. from selling its H20 chip in China, an escalation of Washington’s tech battle with Beijing that will cost the company billions of dollars and hamstring a product line it explicitly designed to comply with previous US curbs.

The countries reached a trade truce in Geneva in May, and China followed up by easing supplies of much-needed rare-earth metals for U.S. automakers and manufacturers. Now the U.S. is giving China back some of its AI computing muscle by letting Nvidia ship its H20 chips there.