The U.S. Defense Department has added major Chinese technology companies including gaming and technology company Tencent, artificial intelligence firm SenseTime and the world’s biggest battery maker CATL to its list of companies it says have ties to China’s military.

A staff member cleans a display showing the locations of battery maker CATL's production bases, at the CATL booth during the first China International Supply Chain Expo (CISCE) in Beijing, China November 28,

The U.S. Defense Department has added dozens of Chinese companies, including games and technology company Tencent, artificial intelligence firm SenseTime and the world's biggest battery maker CATL, to a list of companies it says have ties to China's military.

The United States has labeled additional Chinese tech and social media firms as Beijing military companies, including multimedia firm Tencent and battery maker Contemporary Amperex Technology, better known as CATL.