Huawei said in a video on its website in December it was working on EUV technology.
China furious as US chip controls threaten tech ambitions
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Huawei, headquartered in the southern city of Shenzhen, says it is owned by the Chinese employees who make up half its workforce of 197,000 in 170 countries.
China's Huawei says sales down 16.5% amid US sanctions
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