Mitsui Sumitomo Insurance Group, Aioi Insurance, and Nissay Dowa will consolidate under a holding company structure as of April 1, 2010. Standard&Poor's downgraded three of Mitsui Sumitomo Insurance Group's domestic insurers to 'AA-', and upgraded Aioi Insurance and Nissay Dowa to 'AA-', given the creditworthiness of the new group and status of the companies within the group. Ratings on overseas subsidiaries of these groups were also revised. The outlook on the long-term ratings is stable, reflecting our expectations that the companies will be able to maintain very strong business franchises and relatively stable financial bases, even in the current difficult business conditions. TOKYO (Standard&Poor's) March 26, 2010--Standard&Poor's Ratings Services today lowered to 'AA-' from