Wuhan Hvsen Biotechnology 

Hvsen Biotechnology Co., Ltd. is a company based in Wuhan, China, that focuses on the global research, development, and manufacturing of macrolide active pharmaceutical ingredients (APIs) and finished drug products. The company's diverse product portfolio features tylvalosin, offered in both raw material form and various preparations, along with florfenicol preparations and a broader selection of other macrolide-based offerings. Additionally, Hvsen produces a range of veterinary pharmaceuticals, available as both raw ingredients and finished drugs, alongside traditional Chinese medicine extracts.