Chongqing Yuou Motor Vehicle Inspection Co., Ltd. (hereinafter "Yuou") was established on May 5, 2015, in response to the national "Belt and Road" initiative. It was jointly founded by China Merchants Vehicle Research Institute Co., Ltd., Chongqing Railway Port Logistics Development Co., Ltd. and Chongqing Liangjiang Customs Brokerage Service Co., Ltd. (signing in Jan 2015, registered May 2015), with registered capital of RMB 10 million and shareholdings of 51%, 30% and 19%. Its main business is motor-vehicle inspection and related technology development.

Adhering to the philosophy of "serving the people and guarding the front line of the nation's western gateway," Yuou provides complete-vehicle import inspection services. To support the Chongqing vehicle-import port, Yuou has deployed complete inspection resources at the port, performing customs line-inspection per SN/T 1688.4-2013 "Rules for the Inspection of Import and Export Motor Vehicles — Part 4: Automobiles," with a normal daily capacity of over 150 vehicles. It also provides CCC testing at the port so parallel-import vehicles can complete 10% sampling and other CCC certification tests without leaving the port; and it has end-of-line testing equipment and an eco-environment-ministry monitoring system for environmental end-of-line inspection. The Chongqing railway port is among the most complete vehicle-import ports in terms of testing capability.