Sumitomo Group
Mitsui lagged somewhat behind its rivals Mitsubishi and Sumitomo Group in reorganization. Mitsui Bank, which should have been the mainstay and principal capital provider of the group, declined in size due to the collapse of the Imperial Bank after the war, which resulted in reduced cohesion of the conglomerate. Many companies that were once part of the Mitsui Group have become independent or tied to other conglomerates. Specifically, Toshiba, Toyota Motors, and Suntory, once part of the Mitsui Group, became independent, with the Toyota Group becoming a conglomerate in its own right.