The organization for quality control consists of quality inspection office and the laboratory under the department of technology and quality and the file management center. The work covers four sections: raw material control, on-the-spot management, quality inspection and sustained improvement. To ensure the homogeneous and stable raw materials, the company established collaboration with the experts at Institute of edible Fungi of Qingyuan County, and set up edible fungi growth base meeting the GAP standards with over 5000 households. The company provides the farmers with the services in seed supply, growth medium composition, cultivation and purchasing. In this way, any bad material is kept away from the factory. For the on-the-spot quality management, the responsibility system of designation management and equipment maintenance is made, and all the duties are appointed to each person in file form.