Chinese markets plunged Tuesday as news emerged that President-elect Donald Trump may appoint China hawks Sen. Marco Rubio and U.S. Rep. Mike Waltz to key administration roles. The Shanghai Composite fell over 1% while Hong Kong's Hang Seng Index lost more than 2%, marking a six-week low. The yuan weakened against the U.S. dollar. Premarket losses in U.S.-listed Chinese companies included Alibaba, PDD Holdings, and Baidu.