Hainan Construction Group Co., Ltd. (hereinafter referred to as Haijian) is a wholly state-owned company mainly supervised by the State-owned Assets Supervision and Administration Commission of Hainan Province. It has developed into a general contracting or professional contracting qualification for construction projects, equipment installation, steel structure, building decoration, water conservancy and hydropower projects, foundation and foundation projects, fire protection projects, garden ancient buildings, etc., and covers investment, real estate development, design, testing and so on.