Essex Bio-Technology (億勝生物科技) is a company that specializes in drug development based on recombinant DNA technology. It operates in two segments: pharmaceutical products and provision of marketing services. The company manufactures and sells biopharmaceutical products, including eye drops, gels, sprays, and lyophilized powders for the treatment and healing of surface wounds and eye wounds. Additionally, Essex is engaged in the research and development of bFGF (basic fibroblast growth factor) products for new indications, as well as other ophthalmic pharmaceutical projects.