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About OS Chemical OS Chemical is located in Shanghai, China. The company has an experiment base in Shanghai Science & Technology Park of ECUST Co., Ltd, mainly focusing on the research and development of new products with high added-value. The R&D centre specialized in producing chemical intermediates and raw materials. By a wide cooperation with several factories and an extended cooperation with overseas trade companies, we have grown up to a new type company combining tech-development, production, cooperation production and sale as a whole body. The products such as Isra