Founded in 1988, QYH Biotech Co., Ltd. Beijing Biopharmaceutical Factory is a high-tech enterprise specializing in the research, development, production, management and technical services of biological products for the diagnosis and prevention of livestock diseases, which was formerly known as BeijingHaidianZhonghaiAnimalHealthScience ; Technology Company, and is affiliated to China Institute of Veterinary Drug Control. It is also the earliest manufacturer of adopting the freeze-drying protective agents in China. In July 2004, after the assets were reorganized, it was renamed as QYH Biotech Co., Ltd.. Beijing Biopharmaceutical Factory.