内容摘要：Hobbling Google in the way the Justice Department envisions would make it more difficult for startups to realise their goal of being acquired, the App Association wrote. “Developers will be overcome by uncertainty” if Google is torn apart, the group argues.

Hobbling Google in the way the Justice Department envisions would make it more difficult for startups to realise their goal of being acquired, the App Association wrote. “Developers will be overcome by uncertainty” if Google is torn apart, the group argues.

The US has been tightening its export controls on semiconductors for more than a decade, contending that China has used US computer chips to improve military hardware and software.Chinese officials and industry executives deny this and contend that the US is trying to limit China’s economic and technological development.

In his first term as president, Trump banned China’s Huawei from using advanced US circuit boards.Huawei is seen as a competitor to Nvidia, the US semiconductor giant which produces its own-brand of “Ascend” AI chips. In April, Washington restricted the export of Nvidia’s AI chips to China.But Nvidia’s chief executive, Jensen Huang, recently warned that attempts to hamstring China’s AI technology through export controls had largely failed.

How could China be affected by US measures?The suspension of semiconductor sales will limit supplies for aerospace equipment needed for China’s commercial aircraft, the C919, a signature project in China’s push towards economic and transport self-reliance.

Christopher Johnson, a former CIA China analyst, told The Financial Times that this week’s new export controls underscored the “innate fragility of the tariff truce reached in Geneva”.

“With both sides wanting to retain and continue demonstrating the potency of their respective chokehold capabilities, the risk the ceasefire could unravel even within the 90-day pause is omnipresent,” he added.Wednesday’s surprise ruling

by the US Court of International Trade had threatened to halt or delay Trump’s “Liberation Day” tariffs on most US trading partners, as well as import levies on goods from Canada, Mexico and China related to his accusation that the three countries were facilitating the flow of fentanyl into the US.The International Court of Trade said tariffs issued under the International Emergency Economic Powers Act (IEEPA), which is typically used to address issues of national emergencies rather than addressing the national debt, were considered overreach.

Experts said the IEEPA, which was passed in 1977, is narrow in scope and targets specific countries, US-designated “terrorist organisations”, or gang activity pegged to specific instances. The US, for example, used the law to seize property belonging to the government of Iran during the hostage crisis in 1979 and the property of drug traffickers in Colombia in 1995.“The 1977 International Emergency Economic Powers Act doesn’t say anything at all about tariffs,” Bruce Fain, a former US associate deputy attorney general under Ronald Reagan, told Al Jazeera.