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,

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,

Tencent’s shares plunged nearly 10 percent after it was designated a military company. The Chinese battery manufacturer CATL was also added to the list.

The US has added several Chinese technology companies, including gaming and social media giant Tencent and battery maker CATL, to a list of businesses it says work with China's military. The list serves as a warning to American companies and organisations about the risks of doing business with Chinese entities.