eREX Co.,Ltd. is a Japan-based power producer and supplier (PPS), engaged in the electric power distribution via power grid owned by general electric utilities. The Company’s electric power businesses include electric power retail, electric market trading and power supplies development. In its electric power retail business, it involves in the retail of electric power in an inexpensive price than electric utilities. In its power supplies development business, it involves in the planning, design and construction of power-generating equipment.