Hangzhou Zhongxin Construction Supervision Co., Ltd. is a wholly owned subsidiary of China New Building Materials & Design Institute, which is belong to CNBM Group. The company has A-level qualification certificate for housing construction, municipal engineering supervision, B-level qualification certificate for mechanical and electrical installation engineering supervision and C-level qualification certificate for civil defense. Supervision business includes industrial and civil construction, metallurgy, municipal, electrical and mechanical engineering supervision and related consulting services. Since its establishment in 1998, the company has been engaged in supervision of a number of large-scale industrial and civil engineering, municipal engineering, highway electrical and mechanical engineering projects. Rely on CNDI, the supervisors have strong professional skills and high quality. With the practice guideline of "law-abiding, honest, impartial, scientific", the supervision services have been universally praised by the owners.