WuXi Biologics (02269) fell more than 3% to a low of HK$47.28, or 1.2% below its ADR close, with turnover of 10.66 million shares worth HK$512 million, according to ETNet.

The stock was last down 3.19% at HK$47.28 and has fallen for two straight sessions, bringing the cumulative decline to 4.1%. The Hang Seng Index was down 343 points, or 1.4%, at 24,931.