Group 1 - The biotechnology sector in the Hong Kong stock market experienced a significant decline, with several companies reporting substantial drops in their stock prices [1] - Notable declines include Clover Biopharmaceuticals, which fell by 14.13%, and Beigene, which dropped by 8.33% [2] - Other companies such as Innovent Biologics and WuXi Biologics also saw declines exceeding 5%, indicating a broader trend of negative performance in the sector [1][2] Group 2 - The following companies reported specific percentage declines: Clover Biopharmaceuticals (-14.13%), Beigene (-8.33%), and Innovent Biologics (-6.50%) [2] - Additional companies with notable declines include Kintor Pharmaceutical (-6.38%), CanSino Biologics (-5.98%), and Zai Lab (-5.50%) [2] - The overall trend suggests a challenging environment for biotechnology stocks in the Hong Kong market [1]