Mizuho Financial Group issued a EUR 500 million green bond on 27 August 2024 with a final maturity date of August 2030, tapping European capital markets to fund environmentally focused projects including renewable energy and other activities consistent with a transition to a lower-carbon economy. The transaction reflects the growing role that Japanese financial institutions are playing in the global sustainable debt market as regulatory expectations and investor demand for green assets continue to rise.
The bond carries a fixed interest rate of 3.460% until an optional redemption date in August 2029, at which point the coupon converts to a floating rate of three-month EURIBOR plus a margin of 1.049% for any remaining period until final maturity in 2030. The optional redemption feature, which gives Mizuho the right but not the obligation to redeem the instrument a year before final maturity, is a structure commonly used in bank capital and senior debt issuances and provides flexibility in managing the liability side of the balance sheet.
BOND ALIGNED WITH ICMA GREEN BOND PRINCIPLES
The transaction was issued under Mizuho's green bond framework, which was comprehensively renewed in February 2023 and aligned with the International Capital Market Association's Green Bond Principles 2021. Those principles establish the four core components that define a credible and transparent green bond: use of proceeds directed to eligible green projects, a clearly defined process for evaluating and selecting eligible assets, robust management of the proceeds to ensure they are tracked and allocated as intended, and regular reporting to investors on the environmental impact of the financed projects.
A second party opinion was provided by Sustainalytics, one of the leading independent research and ratings firms specialising in environmental, social, and governance analysis. Sustainalytics reviewed Mizuho's framework and the eligibility criteria for financed projects, providing institutional investors with external validation that the issuance meets the standard they require for inclusion in green or ESG-labelled fixed income portfolios. The second party opinion has become a standard feature of credible green bond issuance as investor sophistication and scrutiny of environmental claims have intensified.
Mizuho chose to denominate the bond in euros in part because European institutional investors represent one of the deepest and most active pools of demand for certified green bonds globally. Pension funds, insurance companies, and asset managers operating under the European Union's Sustainable Finance Disclosure Regulation and related frameworks have substantial mandates to allocate capital to assets with verified environmental credentials, and EUR-denominated issuance from highly rated financial institutions such as Mizuho attracts strong participation from this investor base.
ISSUANCE REINFORCES MIZUHO'S SUSTAINABLE FINANCE STRATEGY
For Mizuho, the EUR 500 million green bond is part of a broader strategic commitment to directing capital towards sustainable economic activities and building a credible track record in green and transition finance. Japanese financial institutions have been under increasing pressure from the Financial Services Agency and from domestic and international investors to demonstrate that their financing activities align with the goals of Japan's decarbonisation agenda, which includes ambitious targets for renewable energy deployment and energy efficiency improvement.
The eligible project categories under Mizuho's green bond framework include renewable energy generation, energy efficiency improvements in buildings and industrial processes, and other activities that contribute to climate change mitigation in line with internationally recognised standards. Proceeds from the August 2024 bond will be allocated to projects in these categories through the internal selection and monitoring procedures set out in the framework.
Mizuho's sustained activity in the green bond market reflects the expectations placed on large financial institutions as intermediaries of capital in the transition to a lower-emissions global economy. The EUR 500 million raised in this transaction adds to the group's cumulative green bond issuance, building the track record that investors and ratings agencies increasingly consider when assessing a bank's sustainability credentials alongside its financial metrics.