Shandong Zhongyuan Greentech Co., Ltd. was established in March, 1997???eadoffice in Jinan Shandong Province China. After ten years of development, Zhongyuan has become top and professional manufacturer of Chondroitin sulphate in China. We are the main supplier of Chondroitin sulphate in the market of Europe and U.S.A., the brand GREENTECH has high reputation in the market of U.S.A. With ten years of production history, the manufacturing process is well optimized, and the quality of the product is stable. According to the customer??? requirements, products with different specifications can be provided. We have experts with many years of study for the biochemical products, and have long-term technical cooperation with Shandong University. At present, a study for the chondroitin with low molecular weight is being conducted, and this project has been selected into Shandong Innovation Plan for the Science and Technology.