China Dun'an Holdings Group was established in 1987. After more than ten years' development, Dun'an has become a boundless industrial group incorporated with technology, industry and trade. Dun'an focuses on refrigeration industry and also covers other business lines, such as electro mechanism, chemistry, trade, foodstuff, tourism, real estate and so on. Now Dun'an has become one of the top 500 enterprises in China and one of the top enterprises in China refrigeration industries. Meanwhile, it has been taken as the first five giant enterprises and groups of Zhejiang Province, Right at the beginning stage of founding the enterprise, the decision-making management with Yao Xinyi as the center has proposed the management policy ----- credit is the foundation stone of an enterprise. And in the past decade this enterprise has stuck to the three Guarantees Policy, which is intended to guarantee that the corporate operates in accordance with laws, that quality products and services are delivered to customers in time, and that the corporate pays off due bank loans and other payment in time. As a consequence, Dun'an has won good reputation among customers and created a good company image. The corporation has been awarded with a variety of titles, such as he Credit Unit, the Golden Customerand the Best Credit Customer by China Agricultural Bank, the Credit Model Unit in Zhejiang Province, and the Operation and Management Model Unit. The corporation is developing at a fast and steady pace.