We, Gansu Token Int’l Trading Co. Ltd. are specialized in producing Casein and Casein based products in China over 20 years , as main trader and manufacturer of Casein, we can supply Acid Casein including Edible and Industrial grade, Rennet Casein, Sodium Caseinate, Calcium Caseinate, we are certified both by ISO9001:2000 and Kosher, domestic market but also in USA, EU countries, southeast Asia , Mid-East ，Africa and Taiwan region.