12 12 © TechSci Research Automotive Baseline Methodology : For this study, TechSci Research has gathered information through primary research surveys with leading global tire companies operating in China and subsequently verified information from major dealers / distributors of commercial vehicl e tires across China . We also put through an exhaustive search of credible paid databases such as Factiva, Hoovers, OICA, China Association of Automobile Manufacturers (CAAM) including TechSci’s internal database . Our team of analysts has then prudently evaluated all the collected information and presented the same in chronological order to depict a meaningful and clear picture of the country’s commercial vehicle tire market . For the pr oduc tion of China commercial vehicle tire market report, bottom - up research model has been used, which has been later cross validated by using top - down approach . Production Data TechSci Analysts conducted exhaustive primary research to call up all tire production plant s across China to verify their capacity and types of tire s being manufactured with the ir production heads . In addition, TechSci also tracked all commercial vehicle manufacturing plants that were established in the past and are expected to start production during the forecast period of the study to analyze the demand from OEMs . Vehicle Sales and Fleet Size The data points that are needed for the analysis of the China commercial vehicle tire market are historical, current year and forecast figures for vehicle sales and fleet size . The data for vehicle sales and fleet size has been extracted through various secondary sources and credible data portals . TechSci Research has also maintained a database for vehicle sales and fleet size for each vehicle segment ( Trucks and Bus/Vans ), which is regularly updated through various primary research surveys and secondary sources such as automotive associations and government publications . Research Methodology