SGS is the world's leading inspection, accreditation, testing and certification body, which is a globally recognized benchmark for quality and integrity. SGS Standard Technical Service Co., Ltd. is a joint venture company established in 1991 by SGS group of Switzerland and China Standard Technology Development Corporation affiliated to the former State Bureau of quality and technical supervision. It has set up more than 50 branches and dozens of laboratories in China, with more than 12000 well-trained professionals.