JAPAN POST BANK : Notice Concerning Change (Enhancement) of the Shareholder Benefit Program

May 15, 2026

To whom it may concern

Company Name: JAPAN POST BANK Co., Ltd. Representative: KASAMA Takayuki, President & CEO, Representative Executive Officer

Member of the Board of Directors (Securities Code: 7182, Tokyo Stock Exchange Prime Market)

JAPAN POST BANK Co., Ltd. (Chiyoda-ku, Tokyo; President & CEO, Representative Executive Officer, Member of the Board of Directors KASAMA Takayuki; hereinafter "JAPAN POST BANK") hereby provides notice that it has decided to change (enhance) the details of its shareholder benefit program, as follows.

1. Reason for change (enhancement) of the shareholder benefit program

   JAPAN POST BANK introduced a shareholder benefit program in 2022 with the aim of expressing its gratitude to its shareholders for their daily support, to enhance the appeal of investing in its shares and thereby increase the number of its shareholders.

   This time, JAPAN POST BANK will change the details of the shareholder benefit program with the aim of further expressing its gratitude to shareholders who have held its shares for a long period, and to encourage many shareholders to continue to hold its shares.

2. Details of the change (enhancement) of the shareholder benefit program

   JAPAN POST BANK will introduce a new long-term shareholder benefit for shareholders who have held its shares continuously for three years or longer.

   1. Current details

      (Note) Applicable up to the shareholder benefit program with March 31, 2026 as the record date.

      Number of shares held	Benefit details
      500 or more shares	Catalog gift worth ¥3,000

   2. Details after the change

      (Note) Applicable from the shareholder benefit program with March 31, 2027 as the record date.

      Number of shares held	Benefit details
      500 or more shares	Continuously held for less than 3 years	Continuously held for 3 years or more (long-term shareholder benefit)
      	Catalog gift worth ¥3,000	Catalog gift worth ¥5,000

   3. Determination of long-term shareholder

   ・Determination of long-term shareholder for the long-term shareholder benefit will be made by looking back three years from the record date. On the first time, the benefit will apply to shareholders who have continuously held JAPAN POST BANK's shares from March 31, 2024.

   ・A continuous shareholding period of three or more years indicates the same shareholder number being recorded seven

   or more consecutive times in JAPAN POST BANK's shareholder registry (on March 31 and September 30). Moreover, if the continuity of the record of the same shareholder number is interrupted (for example, if the shareholder has sold all of their JAPAN POST BANK shares after recording in the shareholder registry and then repurchased JAPAN POST BANK shares, or if the shareholder name has changed due to inheritance, etc.), the requirement of continuous shareholding will be deemed unsatisfied.

   ・The number of shares for determining eligibilitywill be the number of shares held on the most recent record date (March 31).

3. Start of application

The change will be applied for shareholder benefits with a record date of March 31, 2027.

*The current shareholder benefit program details will be applied for the shareholder benefit program with a record date of March 31, 2026.