ASTMAX Co., Ltd. engages in renewable energy and electricity trading businesses. It engages in the solar/geothermal power generation, and corporate PPA and Grid-Scale battery business activities. The company is also involved in procuring electricity through the Japan electric power exchange, supplying electricity, and offering management systems to retail electric supplier. In addition, it engages in electricity and gas retail business; and dealing business for investing its funds in futures markets. The company was founded in 1992 and is based in Shinagawa, Japan.