... and founded the Shandong Treeful Jiejing Pharmaceutical Co., Ltd. jointly with the Shanghai Treeful Pharmaceutical Co., Ltd. In August 2002, it invested ... subsidiaries of Rizhao Jiejing Pharmaceutical Co., Ltd, Rizhao Jindi (Golden Emperor) Trading Co., Ltd, Rizhao Jiejing Ocean Biotechnology Development Co., Ltd, and a J/V ... districts in Asia, Europe, America and Africa. sodium alginate dental grade