Kunshan Organic Chemical Factory Co., Ltd. (KOC), established in 1976, is the first producer dedicating to solvent dyes for plastics in China. It was merged with Kunshan Yuanyuan Plastic Pigments Co., Ltd. (KYY, founded in 1992) in 1999, who is a reputed colorants producer and distributor in China, by which the merged company is regarded as one of the biggest manufacturers and distributors of solvent dyes in China. In year 2009, the company moved production facilities from Kunshan to Haimen City, Jiangsu province and Jiujiang City, Jiangxi Province, by which, production capacity was enlarged dramatically. In 2010, the company set up a joint-venture with Qingyang Xingda Chemical Co., Ltd, named as Pengze Xingda Chemical Co., Ltd., which is regarded as a major production base of the company.

Presently, the company has four facilities in China, headquarter in Kunshan City, Jiangsu province, some 50km away to Shanghai, one sales branch located in Shenzhen City, Guangdong province, production facility in Haimen, Jiangsu province (Haimen Yellow Sea Chemical Factory) and production facility in Jiujiang, Jiangxi province (Pengze Xingda Chemical Co. Ltd.).

As a pioneer of plastics coloring in China, the company kept going forward by exploring new colors for customers from foundation. With some 30 years efforts, the company aims to provide customer-oriented solutions from his full range colorants with brilliant lightness, strong tinting strength, good light fastness and excellent heat resistance as well.