The United States has lifted restrictions on exports to China for chip design software developers and ethane producers, a further sign of de-escalating U.S.-Sino trade tensions including concessions from Beijing over rare earths.

The United States lifted export restrictions on exports of chip design software to China, a trio of chip design software companies said.

The U.S. has lifted some curbs on exports of chip-design software to China, according to three companies that say they are working to restore access to recently restricted products.