Wuxi Biologics Inc., of Wuxi city, said the company has been selected by Hang Seng Indexes as a constituent of the Hang Seng HK 35 Index (HSHK35) effective Sept. 10. Hang Seng HK 35 comprises the 35 largest companies listed in Hong Kong market which derive the majority of their sales revenue from areas outside mainland China. It provides a tradable index reflecting the performance of large-cap Hong Kong companies and features low volatility.