Mitsui Sumitomo Insurance Group Holdings, Inc. is incorporated.
Mitsui Sumitomo Insurance Group Holdings, Inc. Listed on Tokyo Stock Exchange and Osaka Securities Exchange and Nagoya Stock Exchange.
September 2009
Aioi Insurance Co., Ltd., Nissay Dowa General Insurance Co., Ltd., and Mitsui Sumitomo Insurance Group Holdings, Inc. reach basic agreement on business integration. In conjunction, announced integration plan, president of the holding company, address, descriptions and corporate name, etc.
April 2010
Mitsui Sumitomo Insurance Group Holdings, Inc. changed its name to MS&AD Insurance Group Holdings, Inc.
October 2010
Aioi Insurance Co., Ltd. and Nissay Dowa General Insurance Co., Ltd. merged into “Aioi Nissay Dowa Insurance Co., Ltd.”
April 2011
MS＆AD Insurance Group Holdings, Inc. converted Mitsui Sumitomo MetLife Insurance Co., Ltd. into a wholly owned subsidiary and renamed it Mitsui Sumitomo Primary Life Insurance Company, Limited
October 2011
Mitsui Sumitomo Kirameki Life Insurance Co., Ltd. and Aioi Life Insurance Co., Ltd. merged into “Mitsui Sumitomo Aioi Life Co., Ltd.”
