Dongying Tianrun Biotechnology Corporation Limited, which locates on the shore of Bohai, bank of Laizhou Bay and at the entrance of the Yellow River that is just in Shengli Industrial Zone of Dongying city, Shandong Province, covers 56 hectares with the standard workshop of 5000 square meters, storeroom of 850 square meters and office building of 3000 square meters.

Dongying Tianrun Biotechnology Corporation Limited, which specializes in producing vitamin D, buys and possess the Chinese Academy of Science physics and chemistry's production patent technology and new technics flow developing vitamin D. We introduce into advanced manufacture equipment from German. Under the guidance and participation of the experts from Chinese Academy of Science, we organize production strictly according to the GMP and the production technics operation rules. The product transits the inspection of National Professional Inspection Institution, and the quality completely accords with the criterion of the Chinese pharmacopoeia, America pharmacopoeia and Britain pharmacopoeia.

As the professional manufacture corporation of vitamin D, We supply VD2 and VD3 with different pure degree, character, specification, and packing. The product is from soup to nuts, and we believe that some will satisfy you and your company's requirement. To guarantee the quality of the product, company associated with Chinese Academy of Science builds up the photochemical study and research corner and laboratory.