Group 1 - The commodity market, led by gold and silver, continues to decline, with significant drops in major indices in Hong Kong, including a 1.06% drop in the Hang Seng Index and a 1.35% drop in the Hang Seng China Enterprises Index [1] - Major technology stocks are underperforming, with Alibaba and NetEase both falling over 2.4% [1] - Gold and silver prices are plummeting, leading to substantial declines in gold mining stocks, with Lingbao Gold down nearly 14% and China Gold International down over 12%, while several other stocks like Shandong Gold and Zijin Mining also dropped more than 9% [1] Group 2 - The three major telecom operators announced an increase in the value-added tax rate on telecom services from 6% to 9%, resulting in a decline of over 7% in China Unicom's stock [1] - In contrast, the biopharmaceutical sector and lithium battery concept stocks mostly saw gains, with CATL rising nearly 2% [1]