JAPAN POST BANK : Notice of an Additional Contribution to the Employee Stock Ownership Plan(J-ESOP)

May 15, 2024

Company Name: JAPAN POST BANK Co., Ltd.

Representative: KASAMA Takayuki, Director, President and Representative Executive Officer

(Securities Code: 7182, Tokyo Stock Exchange Prime Market)

Notice of an Additional Contribution to the Employee Stock Ownership Plan

(J-ESOP)

JAPAN POST BANK Co., Ltd. (the "Bank") hereby announces that the Bank today decided to make an additional contribution of monetary assets to the Employee Stock Ownership Plan (J-ESOP) (the "Plan," and the trust established based on the trust agreement entered into with Mizuho Trust & Banking Co., Ltd. hereinafter referred to as the "Trust"). Details are as follows.

For an overview of the Plan, please refer to "Notice Regarding the Details of a Trust Agreement Related to an Employee Stock Ownership Plan for Management Employees" issued on May 15, 2017.

1. Reason for the Additional Contribution

The Bank has continued to implement the Plan and is scheduled to continuously grant shares to the management employees of the Bank's Investment Division (the"Eligible employees") as before. Accordingly, the Bank has decided to make an additional contribution of monetary assets, primarily to ensure that the Trust has the funds needed to acquire the shares.

2. Overview of the Additional Entrustment

1. Name: Employee Stock Ownership Plan (J-ESOP)
2. Entrustor: the Bank
3. Trustee: Mizuho Trust & Banking Co., Ltd.(Re-trustee: Custody Bank of Japan, Ltd.)
4. Beneficiaries: Eligible Employees who meet the beneficiary requirements stipulated by the Stock Benefit Regulations.
5. Type of trust: Money held in trust other than a monetary trust (third-party benefit trust)
6. Date of additional entrustment: May 22, 2024(planned)
7. Amount of additional entrustment: ¥57,397,800
8. Share acquisition method: Acquisition from the listed stock market (planned)
9. Share acquisition period: From May 22, 2024 to May 28, 2024 (planned)