Shares of Japanese chip equipment makers including Tokyo Electron Ltd. extended losses after US officials were said to be planning tougher controls on China’s semiconductor industry.

Some Trump officials also aim to further restrict the quantity and types of Nvidia chips that can be exported to China without a license, the report said, citing people familiar with the matter.

Donald Trump’s administration is moving to tighten US semiconductor restrictions on China, building on measures introduced under Joe Biden to limit Beijing’s technological advancements, as per a Bloomberg report.