多维医药集团

Duowei Pharmaceutical Group is a large-scale Chinese pharmaceutical enterprise specializing in the research, development, and manufacturing of active pharmaceutical ingredients (APIs), finished dosages, and animal health products. The company is globally recognized as one of the world's largest producers of Vitamin B12 and a major manufacturer of macrolide antibiotics such as Tylosin and Tilmicosin. With significant production bases in Ningxia and Inner Mongolia, Duowei operates across the entire value chain, from large-scale fermentation and chemical synthesis to final product distribution. Their portfolio serves diverse sectors including human nutrition, clinical medicine, and the global veterinary industry.