nbaブックメーカー Notice regarding Business Alliance betweenOsaka Gas Information System Research Instituteand Sakura Information System(1/1)

Sumitomo Mitsui Financial Group, Inc.

Notice regarding Business Alliance between nbaブックメーカー Gas Information System Research Institute and Sakura Information System

TOKYO, July 28, 2006 --- Sumitomo Mitsui Financial Group, Inc. (SMFG) hereby announces that its consolidated subsidiaries, Sumitomo Mitsui Banking Corporation and Sakura Information System, have published the attached press release today. SMFG’s earnings forecast for the fiscal year ending March 31, 2007 remains unchanged.

nbaブックメーカー Gas Information System Research Institute Co., Ltd.
Sakura Information System Co., Ltd.
nbaブックメーカー Gas Co. Ltd

Sumitomo Mitsui Banking Corporation

Notice regarding Business Alliance between nbaブックメーカー Gas Information System Research Institute and Sakura Information System

Japan, July 28, 2006--- nbaブックメーカー Gas Information System Research Institute Co., Ltd. (OGIS-RI, President: Masakazu Kato), Sakura Information System Co., Ltd. (SIS, President: Ryoji Miura), nbaブックメーカー Gas Co. Ltd. (nbaブックメーカー Gas, President: Hirofumi Shibano) and Sumitomo Mitsui Banking Corporation (SMBC, President: Masayuki Oku) today have entered into a basic contract on business alliance in the field of information service business as basically agreed between OGIS-RI and SIS on May 23, 2006.

In addition, on the basis of the basic contract above, SMBC today transferred part of its holdings of SIS shares (equivalent to 34% of the total SIS shares) to OGIS-RI in order to reinforce the alliance.

1.Outline of business alliance

(1) Cooperation in the field of system development

• (a) System development, combining SIS’s know-how and OGIS-RI’s technology of“Object/UML (Unified Modeling Language) Modeling”
• (b) Mutual exploitation of development base

(2) Cooperation in foreign operation

Mutually utilize the development base in Shanghais, OGIS-RI’s business partner, and SIS’s subsidiary in Singapore.

(3) Cooperation in the field of system operation

Mutually utilize OGIS-RI’s computer center (Nishi-ku, nbaブックメーカー) and SIS’s center (Shinagawa-ku, Tokyo).

(4) Exchange and development of human resources

2.Outline of SIS after the transfer of shares

(1) Company name	Sakura Information System Co., Ltd.
(2) Head office	4-10,Nihonbashihoncho 3-chome,Chuo-ku, Tokyo
(3) Business description	System development and data processing
(4) Date of establishment	November 29, 1972
(5) Capital stock	600 millions of yen
(6) Number of shares issued	775,000 shares
(7) Principal shareholders	SMBC　511,500 shares (66.0%) OGIS-RI　263,500 shares (34.0%)

Appendix

Profile of OGIS-RI

Company name	nbaブックメーカー Gas Information System Research Institute Co., Ltd.
Head office	Minami 2-37, Chiyozaki 3-chome, Nishi-ku, nbaブックメーカー-shi, nbaブックメーカー
Business description	System development, data processing, and sales of computer and software
Date of establishment	June 29, 1983
Capital stock	400 millions of yen (as of March 31, 2006)

Profile of nbaブックメーカー Gas

Company name	nbaブックメーカー Gas Co. Ltd.
Head office	1-2, Hiranamachi 4-chome, Chuo-ku, nbaブックメーカー-shi, nbaブックメーカー
Business description	Gas and heat supply business
Date of establishment	April 10, 1897
Capital stock	132,166 millions of yen (as of March 31, 2006)

Profile of SMBC

Company name	Sumitomo Mitsui Banking Corporation
Business description	Banking
Date of establishment	June 6, 1996
Head office	1-2, Yurakucho 1-chome, Chiyoda-ku, Tokyo
Capital stock	664,986 millions of yen (as of March 31, 2006)