CRO concept stocks saw a notable surge during the pre-noon trading session. As of press time, GenScript Biotech Corp (01548) rose 11.35% to HKD 18.15, while WuXi Apptec Co., Ltd. (02359) also gained 11.17% to HKD 181.10.
Other gainers in the sector included Asymchem Laboratories Tianjin Co., Ltd. (06821), which climbed 8.26% to HKD 118, and WuXi Biologics Cayman Inc. (02269), which advanced 3.61% to HKD 40.20.