Beijing Challenge Bio-technology Limited Company, invested by Challenge Group of the Chinese Academy of Agricultural Sciences, is a high-tech enterprise, which integrates research & development, production, technical services and trade at home and abroad. Its leading products include high-tech feed additives and premixes etc. Beijing Challenge Bio-technology Limited Company has many famous research experts, among whom there are two doctor supervisors and nine doctors. What’s more, it has strong technology strength, and has established quality and safety management control system according to ISO9001, HACCP and FAMI-QS standard. Intensive talents, together with strict production management effectively ensure the superiority and stability of quality of products. The corporation pays ..