Hong Kong-listed biopharmaceutical stocks led the decline, with Akeso Biopharma (09926.HK) falling over 9%, Zai Lab (09688.HK) falling over 7%, and BeiGene (06160.HK), Innovent Biologics (09969.HK), Rongchang Biotech (09995.HK), and Kelun Biotech (06990.HK) also falling.