The US Commerce Department placed seven top Chinese supercomputing centres/companies on its Entities List, saying that Beijing’s growing efforts in the field could have military uses that pose dangers. The centres hit with the restrictions include the National Supercomputing Centre in the eastern city of Wuxi, home to the Sunway TaihuLight, which was considered the world’s fastest when it was launched in 2016 – the first time a supercomputer took the rank without using any US technology. The US Commerce Department's press release listed the following companies: Tianjin Phytium Information Technology, Shanghai High-Performance Integrated Circuit Design Center, Sunway Microelectronics, the National Supercomputing Center Jinan, the National Supercomputing Center Shenzhen, the National Supercomputing Center Wuxi, and the National Supercomputing Center Zhengzhou. It explained that these entities are involved with building supercomputers used by China’s military actors, its destabilizing military modernization efforts, and/or weapons of mass destruction (WMD) programs.

(Comment: On April 7, Phytium officially renamed itself the 'Feiteng Information Technology Co., Ltd.' Reports also state that the chips are produced in Taiwan, and sold to Phytium Technology.)