The United States government has lifted export restrictions on chip design software sales to China, a move confirmed by Siemens AG, Synopsys, and Cadence Design Systems. Siemens announced it received official notification from the U.S. government that the export curbs had been removed, restoring full access to its software and technology for Chinese customers. This change follows a trade deal between Washington and Beijing aimed at easing flows of critical technology and included the removal of licensing requirements for major chip design software firms. The restrictions, initially imposed in May 2025, required U.S. companies to obtain special licenses to sell such software to China. The lifting of these restrictions has led to a positive market reaction, with shares of Synopsys and Cadence Design Systems rising by approximately 5.7% and 5.5%, respectively. The move is also part of a broader de-escalation of U.S.-China trade tensions, which includes the lifting of tariffs and easing of export controls on other products such as ethane. The companies have confirmed they are in the process of resuming or have already resumed sales and support to their Chinese clients in compliance with U.S. export laws.