Yuan Shi(SuQian)Biotechnology Co.,Ltd.is a comprehensive hi-tech enterprise. Our businesses include scientific research, development, production & international trade. we are a leading developer and manufacturer of hi-tech chemicals, the main products are Elisa chromogenic reagent (TMB) series for biochemical clinic inspection reagents, biological buffering agent series(EGTA,MES,TAPS,PIPES, BICINE,BIS-TRIS PROPANE,TRICINE, ACES),** intermediate and electronic chemicals (PCP,DCPCP),etc.