Sumitomo Mitsui Construction Co. Ltd. (SMCC) is a leading Japanese construction company with operations that span the globe. The company was established in 2003 through the merger of two long established companies. Sumitomo Construction Co. Ltd. and Mitsui Construction Co. Ltd.

The company promotes advance technologies that are utilized in the erection of skyscrapers, the seismic reinforcement of buildings, the pre-stresses concrete structures and underground structures.

The Company currently divides its operations into Civil Construction and Building Construction, managed by the Civil Engineering Division and the Building Administration Division, respectively. Their business strategies are formulated by each segment. Accordingly, the Company divides its operations into two reportable operating segments on the same basis as it uses internally; Civil Construction and Building Construction. Civil Construction consists mainly of governmental public works like bridge construction.