Kotobuki Seika Co., Ltd. Begins Renewable Energy Supply via On-site Solar PPA at Headquarters Factory

Chugin Energy Co., Ltd. (Okayama City; Representative Director: Shinichi Matsuoka) is pleased to announce that it has installed solar power generation equipment and commenced the supply of renewable energy to Kotobuki Seika Co., Ltd. (Representative Director: Minoru Ito) based on a solar PPA (*) service agreement.

* PPA: Abbreviation for Power Purchase Agreement. A system in which a PPA provider installs, operates, and maintains a solar power generation system at no cost, and the consumer purchases and utilizes the electricity generated.

1. Overview of the Solar Power Generation System

PPA Installation Site	Kotobuki Seika Co., Ltd. Headquarters Factory
Panel Capacity	174.225 kW
Annual Planned Generation	164,118 kWh
CO2 Emission Reduction	79 tons/year (Note 1, 2)
Operation Start Date	March 26, 2026

Note 1: Equivalent to the absorption capacity of approximately 9,000 cedar trees (Source: Forestry Agency website).

Note 2: Calculated using the emission factor by electricity utility (partially updated by the Ministry of the Environment and the Ministry of Economy, Trade and Industry on February 25, 2026).

2. Overview of the Client

Kotobuki Seika Co., Ltd. manufactures and sells Japanese confectionery, primarily Hiroshima Momiji Manju. In the environmental sector, the company has issued an SDGs declaration aiming to "contribute to sustainable community development" and is focusing on reducing CO2 emissions through the introduction of LED lighting and solar power generation equipment.