biosan biotech co., ltd is a professional enterprise specializing in mushroom cultivation, processing, and marketing. we offer a wide range of mushroom products including mushroom powders, mushroom extracts and the finished mushroom supplements. our mushroom products are 100% pure and organic with the scientifically verified, and widely recognized and trusted by customers worldwide. with the strict quality control and the state-of-the-art facilities as well as the organic cultivation bases, we passed fssc 22000 and haccp annually, and accepted the unannounced inspection of sgs and the china food administration agency. biosan is located in lishui, zhejiang province. lishui is the top of eco-friendly city in china. the city is recognized as the hometown of reishi and shiitake and the hometown of longevity.