ZHEJIANG BREMEN IMP.&EXP.CO.,LTD.

OSI Group established in 1998 is a leading high-tech and environmental-friendly chemical corporation specializing in optical brightening agents with manufacture and R&D, sales and after-marketing services functions. Our products have been widely used in textile, plastic, short fiber, paper, and daily chemical industries and have earned good reputations of reliable products and excellent after-marketing services both from domestic and abroad clients.