Yih Chin Wu

Quon Hing Concrete Co. Ltd. engages in building materials industry. The company is headquartered in Hong Kong.

Yargoon Co. Ltd. is a Chinese company that specializes in mining and extraction contracting.

Hong Kong Concrete Co. Ltd. is a private company based in Hong Kong, Hong Kong that manufactures cement concrete.

TCC International Holdings Ltd. manufactures, distributes, imports and exports of cement, clinker, slag powder and concrete products. It also engages in the production of ready-mixed concrete. The company operates through three segments, which include Import, Distribution and Handling of Cement; Manufacture and Distribution of Cement, Clinker and Slag Powder, and Investment Holding segments. The Import, Distribution and Handling of Cement segment is engaged in the imports, distribution and handling of cement in Hong Kong. The Manufacture and Distribution of Cement, Clinker and Slag Powder segment involves in the manufacturing and distribution of cement, clinker and slag powder in the China. The Investment Holding segment invests in listed and unlisted equity securities. TCC International Holdings was founded in July 1997 and is headquartered in Hong Kong.