Lanzhou Longruan Casein Co., Ltd is a stock company founded in 1995, involving in research，manufacture and trade of casein products. The head quarter locates in Lanzhou City, the capital of Gansu Province. One of it’s holding company, Dingxi Longruan Biology Science& Technology Co., Ltd locates in the important manufacture base of casein in Gansu Province, covering an area of 20, 000M2. With modern workshop, advanced equipment, sound quality control system and professional R & D team, we have got Certificate of ISO9001:2000 & HACCP for our “Longruan” brand casein products which are made from unpolluted yak milk unique in Tibetan plateau. Annual product capacity reaches 4000 tons, most of which is exported to USA, Canada and other countries in Europe, Africa and south-east Asia. Our products have obtained a good reputation both in domestic market and around the world. Among them, the Rennet Casein is especially known for its high quality. Lanzhou Longruan Casein Co., Ltd. is a the first company in China to export Rennet Casein, which counts for 80% of our export volume. Our tenet is ‘Innovation, Development, Quality, Service ’.</p>