As one of subsidiaries of Shandong Tianyi Chemical Corporation, Shandong Tianyi Imp.&Exp. Co.,Ltd was Established in 2004, located in Weifang, Shandong Province. Base on local rich Bromine & Salt resources and supported by Shandong Ocean Chemical Industry Scientific Institute. Now we are growing into the world leader supplier of Brominated Flame Retardant, Halogen Free Flame Retardant, Oil Drilling Fluid, Crossing Linker, Pharm-Intermediate, and other chemicals. The company has been approved by ISO9001:2008 and ISO9001:14001. All of our products have passed the test of SGS, accorded with ROHS & WEEE of EU.