No 20, Zhenning Road, Ningwei, Xiaoshan, Hangzhou, China,

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No.2, 7th Xinggong Road, Jiangdong District, Jiangshan Economic Development Zone,Quzhou City, Zhejiang Province, PRC

OSI Group is an integrated entity established in 1998 comprised of chemical industry and other business fields such as agriculture, trade, tourist, horse, services and off-shore investment. OSI Grou...

Chemical Material Co., ltd.mainly products are optical righteners, such as OB-1, OB, KSN, CXT, dyes materials, masterbatch, and pigment colors, as green, carbon black, blue, yellow, and rose. We welco...