Ishikawajima-Harima Heavy Industries is now considered to be part of the Mizuho Group, and many companies in the Sumitomo Mitsui Financial Group are now more closely tied to the Sumitomo Group than the Mitsui Group.
Ishikawajima-Harima Heavy Industries udgør i dag en del af Mizuho og flere selskaber i Sumitomo Mitsui Financial Group er i dag tættere forbundet til Sumitomo end til Mitsui.