恒生指数开盘跌0.36%，恒生科技指数跌0.48%；上市首日，大众口腔涨20%。中国大治有色金属涨超13%，特朗普表示铜关税将达到50%。

Group 1 - The Hang Seng Index opened down 0.36%, and the Hang Seng Tech Index fell by 0.48% [1] - On its first trading day, Dazhong Oral Health surged by 20% [1] - Chinese Dazhi Nonferrous Metals rose over 13% following Trump's announcement that copper tariffs will reach 50% [1]