CNQC INTL's major operating subsidiaries are Woon Lee Construction Company Limited，Sunley Engineering & Construction CO., Limited, Sunnic Engineering Limited,Full Gain Engineering Limited and CNQC Realty (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.