Shares of chip-design software companies Synopsys Inc., Cadence Design Systems Inc. and Siemens AG climbed on Thursday after the companies said the U.S. had lifted export controls restricting sales and business in China as part of a trade deal reached last month.

Shares of Synopsys and Cadence Design Systems jumped on Thursday after the U.S. lifted export curbs on chip design software to China, easing uncertainty around access to the crucial market.

President Donald Trump’s administration has lifted recent export license requirements for chip design software sales in China, as Washington and Beijing implement a trade deal for both countries to ease some restrictions on critical technologies.