Solid business franchise and large market share, backed by relationships with both the Mitsui and Sumitomo groups. Underwriting performance has been favorable in recent years. Capitalization is extremely strong, backed partly by ample unrealized profits on stock holdings. Profit sources are expected to become more diversified in the medium term as overseas operations expand. Limited geographical risk diversification, resulting in a sharp increase in loss ratio from frequent natural disasters in Japan. Mitsui Sumitomo Insurance Co. Ltd. (MSI) has a solid business franchise with the third-largest market share among Japanese domestic non-life insurers in terms of net parent-only premiums. MSI's strong market position is backed by its well-recognized brand name as part of the Mitsui and Sumitomo groups. Standard&
