PowerX Secures First Grid-Scale Energy Storage System Order from ReEight Energy

PowerX (Headquarters: Tamano, Okayama; Director, President & CEO: Masahiro Ito; Stock Code: 485A) has received its first order for its grid-scale energy storage system from ReEight Energy (Headquarters: Minato-ku, Tokyo; Representative Director: Chi-hsiu Tien), a grid-scale battery business under ICG, a global alternative asset manager.

The system ordered will be installed at the Karumai Power Station, which ReEight Energy is developing in Karumai-machi, Iwate Prefecture, with operations scheduled to start in December 2026. The power station will connect to the power grid in the Tohoku area, balancing electricity supply and demand by charging during surplus hours and discharging during shortages, thereby contributing to the further expansion of renewable energy.

With capital support from ICG, ReEight Energy has set a goal to develop and own over 1,000 MW of grid-scale energy storage capacity within the next five years, aiming to accelerate Japan's energy transition.

PowerX remains committed to contributing to Japan's carbon neutrality goal through the provision of energy storage systems developed and manufactured domestically.

The details of this order are as follows:

1. Product Ordered PowerX grid-scale energy storage system 'Mega Power 2700A': 3 units in total

2. Power Station Details Name: Karumai Power Station Location: Karumai-machi, Kunohe-gun, Iwate Prefecture Number of battery containers: 3 PCS Output: 1.9 MW Nominal Battery Capacity: 8,226 kWh Operations Start: December 2026 (Scheduled) Operator: ReEight Energy Corporation

3. About 'Mega Power 2700A' Size: 20-foot container (ISO standard) Battery Type: Lithium Iron Phosphate (LFP) Capacity (per unit): 2,742 kWh (nominal) / 2,468 kWh (rated) Place of Manufacture: Tamano, Okayama

* Revenue from this project is included in the order backlog for the fiscal year 2027, as disclosed in the financial briefing material dated May 14, 2026. This press release is issued upon reaching a consensus with the customer regarding public disclosure, and does not necessarily coincide with the necessity or timing of timely disclosure requirements.