Group Information

ASTMAX Co., Ltd.

(As of Apr 1, 2026)

Address 2-10-2 Higashigotanda, Shinagawa-ku, Tokyo, Japan
Tel 81-3-5447-8400
Fax 81-3-5447-8431
Established October 1, 2012
Paid-in Capital 2,013 Million Yen
Directors/Corporate Auditors Hideaki Ushijima (Chairman, President & CEO)
Masaji Hashimoto (Director)
Hiroaki Mizobuchi (Director)
Norihiko Nakanishi(Director)
Kouki Yoshida(Director)
Yoshihito Abe(Corporate Auditor)
Masato Hisatake (Corporate Auditor)
Ichiro Waki (Corporate Auditor)
Exective Officers Hideaki Ushijima
Norihiko Nakanishi
Toshikatsu Ohashi
Ryo Nishio
Kentaro Morikawa
Shinobu Nishikata
Tesuo Takei
Yoshikatsu Nakamura
Employees 62 (As of Apr 1, 2026)
Subsidiaries Astmax Ebino Geothermal, Inc.
Astmax Energy, Inc.
Member Organization Tokyo Commodity Exchange
Commodity Exchange(COMEX)
International Monetary Market(IMM)
Gulf Mercantile Exchange (GME)
Organization for Cross-regional Coordination of Transmission Operators, JAPAN(OCCTO)
Japan Electric Power Exchange(JEPX)
External Auditor Deloitte Touche Tohmatsu LLC