Notice of Appointment of Mr. Tadachiyo Nagata, Former Representative Director and Senior Managing Director of MUFG Bank, as Outside Director

Green Battery Inc. (Head Office: Minato-ku, Tokyo; Representative Director: Kotaro Okada) is pleased to announce the
appointment of Mr. Tadachiyo Nagata as Outside Director, effective April 10, 2026. The appointment is part of the
Company’s ongoing efforts to further strengthen its management foundation and corporate governance framework.

Mr. Nagata previously served as Representative Director and Senior Managing Director of MUFG Bank, Ltd., and currently holds outside officer positions at a number of listed companies and startups.

In addition to his many years of executive leadership at one of Japan’s largest financial institutions, Mr. Nagata brings
extensive experience as an outside officer across both listed companies and high-growth ventures. By applying his
advanced expertise in finance and corporate strategy, together with his broad experience in management oversight,
governance enhancement, and support for growth-stage companies, Green Battery will continue to pursue sustainable growth in corporate value.

We thank our stakeholders for their continued support.

[Company Profile]
Green Battery Inc.
Green Battery Inc. develops grid-scale battery storage projects with the aim of realizing a society in which no renewable energy goes to waste. By handling the entire process — from site acquisition through construction and grid interconnection applications — and selling the completed grid-scale storage plants, we contribute to power system stability and the maximum utilization of renewable energy.

[Contact]
Green Battery Inc.
TEL: +81-3-6809-3888
MAIL: info@greenbattery.co.jp