Dong Ah Group was a large-scale business group in South Korea that started in the 1980s based on Chungnam Construction Co., Ltd., which was founded in 1945. From the 1980s to the late 1990s, the construction of the waterway in Libya and the development boom in the Middle East focused on overseas construction projects and continued to grow since the 1980s. As a result, creditors announced that they would disband the entire Dong-A Group and leave only Dong-A Construction behind. Dong-A Group was converted into a professional management system in May and was launched as a government-appointed professional manager in June 1998 under the Chairman Ko Byung-woo system. Under the corporate restructuring agreement in September, Dong-A Group was disbanded. Dong-A Life Insurance was merged with Kumho Life Insurance on April 29, 2000, and Dong-A Life Insurance disappeared into history. In 2000, the company continued to sell its affiliates at a bargain price. In July 2000, Choi Dong-seop took office as the second chairman. However, on November 10, 2000, Dong-A E&C went bankrupt and lost its chairmanship was virtually lost. Since then, Dong-A Group, which had only Dong-A Construction left, was finally disbanded on May 11, 2001 after Dong-A Construction went bankrupt on November 10, 2000.