Chinese chip stocks tumble after U.S. calls for new curbs on high-end tech

A worker at a chips factory in Chongqing, China, on March 30, 2022.
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BEIJING — Chinese chip stocks fell Monday after the U.S. announced new export controls aimed at limiting Beijing’s ability to produce advanced military systems.

The sweeping rules mean companies must apply for a license if they want to sell certain advanced computing semiconductors or related manufacturing equipment to China, the U.S. Department of Commerce’s Bureau of Industry and Security (BIS) said in a release Friday.

The rules, effective this month, expand on prior U.S. attempts to crimp Chinese companies’ access to key tech.

Notably, the changes also mean foreign companies will need a license if they use American tools to produce specific high-end chips for sale to China.

“These rules make clear that foreign government actions that prevent BIS from making compliance determinations will impact a company’s access to U.S. technology through addition to the Entity List,” the U.S. release said.

The U.S. said it would grant a temporary license from Oct. 21 through to April next year to allow businesses to manufacture some of the high-tech products in China for use outside the country.

Chinese chips stocks tumble

China’s largest chipmaker, Semiconductor Manufacturing International Corporation, traded 3% lower Monday afternoon in Hong Kong, amid a broader market sell-off.

Hua Hong Semiconductor was down by about 9%, while Shanghai Fudan Microelectronics plunged by more than 20% as of Monday afternoon.

Shares of U.S. chipmakers NvidiaAMD

“The U.S. has been abusing export control measures to wantonly block and hobble Chinese enterprises,” Chinese Ministry of Foreign Affairs Spokesperson Mao Ning said at a briefing over the weekend, according to an official English-language transcript.

“Such practice runs counter to the principle of fair competition and international trade rules,” she said. “It will not only harm Chinese companies’ legitimate rights and interests, but also hurt the interests of U.S. companies.”

Mao did not mention any plans for Chinese countermeasures.

The global semiconductor supply chain is highly specialized. Only a few companies have the most advanced tech, while China has been heavily investing in domestic players in an attempt to catch up.

Taiwan Semiconductor Manufacturing Companyworld’s only company able to make the highly complex machines that are needed to produce the most advanced chips.

On the other hand, U.S. companies such as Lam Research, KLA and Applied Materials are industry leaders for other tools needed to make chips.

Assessing the damage

It remains to be seen how damaging the new U.S. restrictions will be on business.

The U.S. government previously put Chinese companies Huawei and SMIC on a blacklist that requires suppliers to obtain a license before selling to them.

But suppliers to those two companies received licenses last year to do billions of dollars’ worth of business, according to Reuters.

The U.S. Bureau of Industry and Security estimated the latest rule changes mean it will receive at least an additional 1,600 new license applications a year.

International cooperation is also needed, a senior U.S. government official said in a briefing Thursday, Reuters reported.

“We recognize that the unilateral controls we’re putting into place will lose effectiveness over time if other countries don’t join us,” the official said in the report. “And we risk harming U.S. technology leadership if foreign competitors are not subject to similar controls.”

The U.S. embassy in Beijing did not immediately respond to a CNBC request for comment on the report.

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