港股午评：恒指跌0.25%，科技股分化，铜业股引领有色金属股上涨

Market Performance - The Hong Kong stock market saw all three major indices decline in the morning session, with the Hang Seng Index down by 0.25%, the Hang Seng China Enterprises Index down by 0.14%, and the Hang Seng Tech Index down by 0.2% [1] Sector Performance - Large technology stocks, which had rallied in the afternoon session yesterday, showed mixed performance today [1] - Airline stocks, gaming stocks, and shipping stocks experienced significant declines [1] - Copper prices reached new highs, with institutions remaining bullish, leading copper stocks to drive gains in the non-ferrous metals sector [1] - Jiangxi Copper Co. saw an increase of over 5% [1] - Semiconductor chip stocks and insurance stocks were mostly active [1]