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US-China relations
ChinaDiplomacy

US sanctions against Chinese supercomputer centres may have limited impact, observers say

  • Seven centres or entities have been blacklisted, with the US Department of Commerce saying the technology could serve military purposes
  • Government adviser says there may be some challenges for supercomputers, but military expert doesn’t see immediate issue for weapons development

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Chinese supercomputer the Sunway TaihuLight at the National Supercomputing Centre in Wuxi, which is among those on the entity list. Photo: Xinhua
Stephen ChenandLiu Zhen

New US sanctions will cut supplies of the most advanced hardware China needs to develop the world’s fastest computers, but their impact on the country’s military technology may be limited, observers say.

The US Department of Commerce on Thursday blacklisted seven Chinese centres or entities involved in China’s next-generation supercomputer programme, alleging the technology could serve military purposes, such as to develop nuclear and hypersonic weapons. They now need approval to trade with American companies.
Supercomputers play an important role in advanced weapons development – they can be used to test the aerodynamics of a hypersonic glider or to simulate a nuclear explosion. And it comes as Beijing is pushing technological innovation, especially in areas like supercomputing and artificial intelligence.
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Chinese foreign ministry spokesman Zhao Lijian told reporters on Friday the US move would only strengthen Beijing’s determination to innovate and vowed to hit back if necessary. “China will take necessary measures to resolutely protect the legitimate rights and interests of Chinese companies,” Zhao said.

The sanctions could mean some Chinese companies may no longer be able to outsource the manufacture of custom computer chips to overseas foundries such as Samsung in South Korea and TSMC in Taiwan, according to Xiao Limin, an adviser to the government on supercomputer technology.

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