In April 9th 2009, NPA announces the Chondroitin testing result for Zhongyuan Greentech and the result confirm that the Chondroitin product of Greentech conform to USP 31.

The Natural Products Association (NPA) is the largest and oldest organization of US dietary supplements industry and it represents more than 100,000 retailers, manufacturers, wholesellers and distributors of natural products including foods, dietary supplements and health aids.

NPA ingredient testing program initiate to improve the product quality, safety and transparency. Mr. Naipu Li think the test result from NPA proves again that the product of Zhongyuan Greentech has high quality and good reputation and is trustable for clients and consumers all over the world. Greentech insist that the quality is the life of our company and provide the high-quality  product to the market.