CNQC INTL's major operating subsidiaries are Woon Lee Construction Company Limited，Sunley Engineering & Construction CO., Limited, Sunnic Engineering Limited,Full Gain Engineering Limited , CNQC Realty (HK)Limited and CNQC Intelligent Construction（HK)Limited. Woon Lee is principally engaged in the superstructure business of private and public residential, commercial, and industrial building projects.Sunley is principally engaged in the foundation business. CNQC Realty (HK) is engaged in the proprerty development business at Hong Kong. CNQC Intelligent Construction (HK) Limited is actively engaged in both concrete and steel modular integrated construction (MiC) business for Hong Kong, Macau and Great Bay Area.