For decades, the Chinese government has sought to decrease its reliance on foreign chipmakers and become a world leader in the field, pledging tens of billions of dollars to boost local players.

But the U.S. wants Beijing to scale back state support for its firms as part of any final trade deal.

By the numbers: Last year, China imported more than $300 billion worth of computer chips, the backbone of all digital products. The company’s founder and chief executive, Ren Zhengfei, told Chinese media that in “peaceful times,” half of Huawei’s chips came from American companies.

A temporary reprieve: The U.S. said it would allow Huawei to continue doing business with American suppliers for 90 days to prevent disruption to mobile networks that use the company’s equipment.