Tianjin Yuhai Motor Vehicle Inspection Co., Ltd. (hereinafter referred to as Yuhai Company) is located at No. 40 Tianbao Avenue, Binhai New Area, Tianjin. It serves as a CMA and CNAS sub-site of China Merchants Automotive Research in Tianjin, as well as a testing base covering Northeast and North China.

The Tianjin laboratory occupies a testing area of 2,500 square meters and is equipped with internationally advanced facilities including high-low temperature environmental chambers, four-wheel-drive chassis dynamometers, emission analyzers, and fuel evaporation sealed chamber test systems. These facilities meet the requirements of China VI emission standards. The company is capable of providing technical services such as environmental information disclosure for light-duty vehicles, single-vehicle certification for parallel-imported vehicles, compliance verification, and non-mass-production verification.