Announcement Regarding Filing of Annual Report on Form 20-F with the U.S. Securities and Exchange Commission

Announcement Regarding Filing of Annual Report on Form 20-F with the U.S. Securities and Exchange Commission

Mizuho Financial Group, Inc. hereby announces that it filed an annual report on Form 20-F with the U.S. Securities and Exchange Commission on June 26, 2026.

A copy of the Form 20-F annual report can be obtained at https://www.mizuhogroup.com/investors/financial-information?tab=form20f. Holders of Mizuho Financial Group, Inc. American Depository Receipts may request a complimentary hard copy of the completed audited financial statements by emailing twenty.f@mizuhofg.co.jp and including:

Your name;

Your mailing address; and