Tiandong Dongying Pharmaceutical Co., Ltd. founded in 1992, subordinate to Shandong Haike Chemical Group, is located in the central area of the Yellow River Delta High-efficiency Ecological Economic Zone and the Shandong Peninsula Blue Economic Zone-city Dongying, especially participation in the development, production and sales of polysaccharides. The company is entitled as a high and new tech enterprise in Shandong Province. The company focuses on the molecular weight heparins, heparin sodium and heparin calcium and so on, as the API manufacturer weight low molecular weight heparin largest China. The injection workshop with an annual capacity of 21 million units of injections of aqueous solutions has been constructed, which makes the company have complete industrial chain API injection products and updates the industry chain of heparin sodium .

Tiandong company is the only one that has passed inspection and been granted EDQM COS Enoxapairn sodium in China. Moreover, the enoxaparin sodium was granted in Brazil GMP certificate, GMP certificate and certified Swedish French GMP on, and completed records in many other countries and regions, and have been exported to more than forty countries.