The administration of US President Donald Trump has lifted restrictions on exports of chip design software to China, as Washington and Beijing work to dial down hostilities as part of a recent trade agreement.

The Trump administration has rescinded some restrictions on the export of chip-design software to China, just weeks after putting the limitations in place. Software firms Synopsys and Cadence and the software arm of Siemens said they had recently received letters from the Bureau of Industry and Science notifying them that the administration was lifting

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.