In this study, a General Trading Company in Korea system introduced in the model for the Japanese General Trading Company activities before and after World War II, focusing on the tiles when the leave was investigated. In particular, this study is one of Japan`s leading General Trading Company Mitsui & Co Japan, through case analysis for the Chaebol, and the dismantling of the postwar occupation of the reorganization process by taking advantage of the policy change were investigated. Through this research, postwar Japan remarkable results in the formation of trading before and after the war throughout the conglomerate, and Japan`s general trading company Mitsui & Co is represented as the dissolution is. In other words, according to the change of occupation policy, prior to resuming private trading firms thorough comprehensive was dissolved, is dissolved. This fact is the financial crisis in late 1997 that helped the so-called ``IMF crisis`` has as a means to overcome the policy perspective on Chaebol reform is considered suggestive.