SGS is the world’s leading inspection, verification, testing and certification company. SGS-CSTC Standards Technical Services Co. Ltd. was founded in 1991 as a joint venture between SGS Group and China Standard Science and Technology Group. With an extensive network of more than 70 branches and 150 laboratories we have more than 15,000 professionals working for us. SGS China National Railway Services works on providing one-stop service in railway rolling stock industry. With professional technology, expertise and advanced equipment, SGS China National Rolling Stock Business has gained widely acceptance by the clients worldwide and accredited by CNAS, CMA, CAPEC, UKAS and CERTIFER.