Notice Regarding Information Strategy Technology's Membership in the Japan Business Federation (Keidanren)

Information Strategy Technology Co., Ltd. (Shibuya-ku, Tokyo; President: Jun Takai; hereinafter "the Company") is pleased to announce that it has become a member of the Japan Business Federation (hereinafter "Keidanren") as of April 1, 2026.

Purpose of Joining Keidanren The Company promotes "Zero-Order DX," which directly addresses the challenges faced by client companies. By joining Keidanren, we intend to deepen our collaboration with industry, government, and related organizations, and participate in discussions and advocacy activities regarding corporate DX promotion, thereby contributing to the advancement of DX and the strengthening of competitiveness across Japanese society as a whole.

About the Japan Business Federation (Keidanren) Organization Name: Japan Business Federation Chairman: Yoshinobu Tsutsui Address: Keidanren Kaikan, 1-3-2 Otemachi, Chiyoda-ku, Tokyo Website: https://www.keidanren.or.jp/

Keidanren is composed of 1,574 of Japan's leading companies, 106 nationwide industrial associations, and 47 regional economic organizations (as of April 1, 2025). Its mission as a comprehensive economic organization is to draw out the vitality of companies and the individuals and regions that support them, contributing to the autonomous development of the Japanese economy and the improvement of the quality of life for its citizens.

[Company Overview] Company Name: Information Strategy Technology Co., Ltd. (Tokyo Stock Exchange Growth Market: 155A) Representative: Jun Takai, President Address: Ebisu Garden Place Tower 15F, 4-20-3 Ebisu, Shibuya-ku, Tokyo Phone: 03-6277-3461 Business Description: DX in-house support services for large enterprises, etc. URL: https://www.is-tech.co.jp/