Yantai Green Source Co., Ltd., owning it's own production resources for raw materials, is specialized in developing, producing, and merchandising of natural colors. It has established it's extensive customer net for quick development through good commercial credit, excellent customer service and professional marketing and technical services. It has altogether 14 ranges of natural colors with more than 100 kinds of products sold to all over the country, some of which has turned out abroad in Japan, Korea, etc. To build good company image, improve the quality of product, and strengthen management, it has passed the ISO 9001: 2000 standard approval, firmly setting a base of sales and the development of the company in long run.