Dongying Yuanda Chemical Co.,Ltd. [est. June 1993] is located in the Shengli Oil Field which is part of beautiful and fertile Yellow River Delta. Yuanda is the brainchild of Mr.Chen Dehua, an oilfield chemistry expert and a group of oilfield workers. The company's research and devleopment has resulted in the manufacture of enhanced oil recorvery (EOR) surfactants and OPP&OPP-Na. Currently, Yuanda is the largest Surfactant-polymer EOR sufantants producer in China, and one of the word’s leading...