HONG KONG (AP) — Shares of Unitree, one of China’s largest humanoid robot makers, have soared as much as 629% in its public stock trading debut in Shanghai. At market close, they had gained 460%. The company raised about $900 million in its listing on the Nasdaq-style STAR market. Advanced robotics is a key sector in the technology rivalry between China and the U.S. Last year, Unitree shipped over 5,000 humanoid robots, leading U.S. counterparts, according to industry data. While overseas sales account for more than 40% of Unitree’s overall revenue, a U.S. ban on new foreign-made robots could hinder its future sales in the United States.