HJ Construction & Trading Co., Ltd. operates in the construction and trading industry, providing a range of services related to building projects and material supply. The company engages in construction contracting, project management, and the procurement of construction materials for various types of infrastructure developments. Its services target both public and private sector clients, including developers, contractors, and organizations requiring construction solutions. By focusing on comprehensive project delivery and supply chain management, the company supports the completion of residential, commercial, and industrial construction projects.