The United States Commerce Department have listed five additional Chinese tech firms on a trade blacklist, barring them from buying American-made products.
They include four companies and a research institute involved in China’s supercomputing efforts, namely: AMD’s Chinese joint-venture partner Higon; Sugon; Chengdu Haiguang Integrated Circuit and Chengdu Haiguang Microelectronics Technology.
The fifth entity is the Wuxi Jiangnan Institute of Computing Technology.
In a statement on Friday, the Commerce Department said the entities were part of China’s efforts to develop supercomputers. It said they raised national security concerns because the computers were being developed for military uses or in cooperation with the Chinese military.
This is coming just days of the highly anticipated summit between President Donald Trump and Chinese President Xi Jinping.
Last month, the US blacklisted Chinese telecommunications giant Huawei Technologies Co., blocking it from buying U.S. software and components required to make its products.
The blacklisting requires American companies doing business with the Chinese firms to get a license from the U.S. government in order to sell their products.