Dong Joo Industrial Co., Ltd. was founded in April 1989, though it was short period, all staffs and executives are now absorbed in research and development in order to create better product. As a result, we had the honor to be selected as excellent supplier of materials department in POSCO which is the root and the trunk of national industries, and were recognized for the excellence in quality. But we understand it as the meaning never to be conceited, and to approach customers by better product, and then will put it in practice.