May 14, 2010
To whom it may concern:
Company Name: Mizuho Financial Group, Inc. Representative: Takashi Tsukamoto
President & CEO
Head Office:
2-5-1 Marunouchi
Chiyoda-ku, Tokyo
Code Number: 8411 (TSE 1st Sec., OSE 1st Sec.)

Announcement regarding Filing of Shelf Registration Statement
in Japan for Future Equity Issuances

Mizuho Financial Group, Inc. (“MHFG”) hereby announces that its board of directors has resolved today to file a Shelf Registration Statement in Japan for the issuance of new shares as set forth below: 1. Type of Securities to
be Offered
Common Stock of MHFG
2. Planned Issuance
Period
Within one year commencing from the effective date of the Shelf Registration Statement (From May 22, 2010 until May 21, 2011)
3. Offering Method
Public Offering in Japan
4. Planned Amount of
Issuance
Up to JPY 800 billion
5. Use of Proceeds
To be invested in consolidated subsidiaries of MHFG
This document does not constitute an offer of any securities for sale. This document is prepared for the sole purpose of publicly announcing that MHFG has resolved matters relating to the filing of shelf registration statement in Japan for future equity issuances, and not for the purpose of soliciting investment or engaging in any other similar activities within or outside Japan. This document is not an offer of securities for sale in the United States. The securities may not be offered or sold in the United States absent registration or an applicable exemption from registration requirements, under the United States Securities Act of 1933, as amended. The securities referred to above will not be publicly offered or sold in the United States.