<div id="readability-page-1"><div>Fitch Ratings-Tokyo-05 December 2025:Fitch Ratings has assigned Mizuho Bank, Ltd.'s (A/Stable) US dollar senior unsecured notes maturing 23 December 2030 a long-term rating of 'A'.The notes are issued under the USD10 billion senior bank note programme guaranteed by Mizuho Bank, Ltd., New York Branch, as described in the offering circular dated 24 April 2025. The notes under the programme will constitute unsecured and unsubordinated obligations of Mizuho Bank and the guarantor.Key Rating DriversThe note rating is aligned with Mizuho Bank's Long-Term Issuer Default Rating (IDR), in line with Fitch's criteria.For Mizuho Bank's key rating drivers and sensitivities, see Fitch Affirms MHFG at 'A-' and Mizuho Bank and Mizuho Trust &amp; Banking at 'A'; Outlook Stable, published on 15 October 2025.Rating Sensitivities Factors that Could, Individually or Collectively, Lead to Negative Rating Action/DowngradeNegative rating action on Mizuho Bank's Long-Term IDR would lead to similar action on the notes.Factors that Could, Individually or Collectively, Lead to Positive Rating Action/UpgradePositive rating action on Mizuho Bank's Long-Term IDR would lead to similar action on the notes.Summary of Financial AdjustmentsTotal assets and total liabilities exclude acceptances and guarantees under Japan's generally accepted accounting principles balance sheet to be globally comparable.REFERENCES FOR SUBSTANTIALLY MATERIAL SOURCE CITED AS KEY DRIVER OF RATING The principal sources of information used in the analysis are described in the Applicable Criteria. ESG ConsiderationsThe highest level of ESG credit relevance is a score of '3', unless otherwise disclosed in this section. A score of '3' means ESG issues are credit-neutral or have only a minimal credit impact on the entity, either due to their nature or the way in which they are being managed by the entity. Fitch's ESG Relevance Scores are not inputs in the rating process; they are an observation on the relevance and materiality of ESG factors in the rating decision. For more information on Fitch's ESG Relevance Scores, visit www.fitchratings.com/topics/esg/products#esg-relevance-scoresMizuho Bank, Ltd.----guaranteed; Long Term Rating; New Rating; AContacts:Primary Rating AnalystKaori Nishizawa,Director+81 3 6897 8995kaori.nishizawa@fitchratings.comInternationalFitch Ratings Japan LimitedKojimachi Crystal City East Wing 3rd Floor 4-8 Kojimachi, Chiyoda-kuTokyo 102-0083Secondary Rating AnalystTim Roche,Senior Director+61 2 8256 0310tim.roche@fitchratings.comInternationalCommittee ChairpersonJonathan Cornish,Managing Director+852 2263 9901jonathan.cornish@fitchratings.comMEDIA RELATIONS: Vivian Kam, Hong Kong, Tel: +852 2263 9612, Email: vivian.kam@thefitchgroup.comLeslie Tan, Singapore, Tel: +65 6796 7234, Email: leslie.tan@thefitchgroup.comAdditional information is available on www.fitchratings.comADDITIONAL DISCLOSURESDodd-Frank Rating Information Disclosure FormSolicitation StatusAdditional Disclosures For Unsolicited Credit RatingsEndorsement StatusEndorsement PolicyALL FITCH CREDIT RATINGS ARE SUBJECT TO CERTAIN LIMITATIONS AND DISCLAIMERS. 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Fitch Ratings has assigned Mizuho Bank's USD senior unsecured notes maturing in 2030 a long-term 'A' rating. The notes are issued under a USD10 billion program guaranteed by Mizuho Bank, New York Branch. The rating aligns with Mizuho Bank's Long-Term Issuer Default Rating. Positive or negative changes in Mizuho Bank's IDR could affect the notes' rating.

Fitch Assigns Mizuho Bank's USD Senior Unsecured Notes 'A' Rating