US and US-origin companies presently control over 70 per cent of the world market, so the new ban directly threatens China's national security and technological ambitions.

All three leading chip design software companies – Synopsys, Cadence and Siemens – said they were notified by the US Commerce Department that the export curbs introduced in May had been rescinded.

NEW YORK, July 3 (Reuters) - 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 ...