Environmental Management

“In striving for harmony and symbiosis between our planet, man and society, we aim for sustainable growth towards a future of limitless possibilities.” In order to realize this Cosmo Energy Group Management Vision, we recognize environmental issues such as natural capital and biodiversity as important issues alongside climate change. Our aim is to be an environmentally responsible energy group that practices “harmony and symbiosis with the global environment,” which is part of our Basic Concept of Sustainability. This is why Cosmo Energy Group Code of Conduct states that we will proactively and continuously pursue the utilization of clean energy and strive to preserve the global environment. We also have an Environmental Policy in place to ensure that all of our business activities are conducted in harmony with the environment.

 

Cosmo Energy Group’s Environmental Policy

Cosmo Energy Group’s Environmental Management System

The Group’s Sustainability Strategy Council is chaired by the executive officer in charge of the Sustainability Initiative Department. Under the supervision of the executive officer, the Sustainability Initiative Department manages the progress of the Group’s environmental activities. This includes the Group’s efforts to address climate change, as specified in the long-term vision and the Consolidated Medium-Term Management Plan. The department also identifies issues and devises appropriate measures, which are submitted to the Sustainability Strategy Council as proposed agenda items. The executive officer in charge of the Sustainability Initiative Department is responsible for implementing environmental measures such as efforts to address climate change. When decisions are made regarding these measures, they are discussed by the Executive Officers’ Committee, and the final responsibility is borne by the Group CEO, who chairs the Executive Officers’ Committee.

 

The members of the Sustainability Strategy Council include executive officers appointed to serve by the council chair, the general manager of the Corporate Planning Department of Cosmo Energy Holdings, as well as the executive officers in charge of sustainability at the core operating companies (Cosmo Oil, Cosmo Oil Marketing, and Cosmo Energy Exploration & Production). The full-time Audit and Supervisory Committee member also attends these meetings as an observer. This membership structure allows the council to incorporate objective perspectives.

 

The Sustainability Strategy Council deliberates on important operations and policies related to environmental issues. Matters deemed to have a major impact on the entire Group are determined via discussion and then reported to the Executive Officers’ Committee and the Board of Directors, thereby ensuring appropriate oversight by the senior management team.

Governance system driving sustainability

Governance system driving sustainability

In fiscal 2025, the Sustainability Strategy Committee reported to the Board of Directors on important matters related to climate change, including an assessment of greenhouse gas (GHG) emission reduction target results, as well as TCFD-related initiatives. This information was also shared with Group companies via Sustainability Liaison Committee meetings to ensure coordination across the entire Group.

Environmental Management System at Business Sites

Focusing on business sites with significant environmental impact, the Cosmo Energy Group has obtained ISO 14001 certification at eight business sites, including its refineries, and has appropriately implemented environmental management systems (EMS). To verify and evaluate the effectiveness and compliance of our EMS activities, we conduct internal audits regularly in accordance with the standard’s requirements, and we undergo an external review by a third-party certification body once a year to maintain certification.

ISO 14001(environmental management systems) Certified Sites

Site nameAcquisition dateRenewal date
Chiba Refinery, Cosmo Oil Co., Ltd.March 1998March 2024
Yokkaichi Refinery, Cosmo Oil Co., Ltd.March 1998March 2025
Sakai Refinery, Cosmo Oil Co., Ltd.March 1998March 2025
Cosmo Matsuyama Oil Co., Ltd.December 1988December 2025
Chiba Plant, Maruzen Petrochemical Co., Ltd.November 1999November 2023
Yokkaichi Plant, Maruzen Petrochemical Co., Ltd.December 2001December 2025
Shimotsu Plant, Cosmo Oil Lubricants Co., Ltd.June 2003June 2024
Osaka Plant, Cosmo Oil Lubricants Co., Ltd.October 2003July 2026

Environmental Education

To further raise environmental awareness, we ensure that our basic environmental policy and environmental laws and regulations are thoroughly communicated, and we provide awareness training in accordance with ISO 14001 (the environmental management system).

Environmental Accidents

During the period of the Seventh Consolidated Medium-Term Management Plan (fiscal 2023 to fiscal 2025), no serious environmental accidents occurred at our production sites.

Service Station Environmental Management

Thorough Soil Monitoring and Response Measures

We conduct regular soil surveys at Cosmo Energy Group business sites and service stations to prevent soil contamination and ensure a quick and proper response in the event of any oil leakage. We also conduct soil remediation and monitoring in response to environmental impacts, as needed.

In fiscal 2025, 22 soil surveys were conducted and 3 soil remediation project was completed.

As of the end of March 2026, a total of 1,227 service stations had been surveyed since 2001.

Preventing Underground Tank Leaks

Based on the revision of Japan’s Fire Service Act in June 2010, underground fuel storage tanks installed 40 or more years ago were required to be reconditioned. We have completed the applicable rehabilitation processes at all service stations owned by the Group. For those owned by distributors, our sales representatives are providing them with the necessary support to determine the deadlines for underground tank rehabilitation and to prevent underground fuel leaks.

At new service stations, we are installing equipment that has an extremely low risk of leakage, such as double-shelled fuel tanks to prevent leaks and resin piping that does not corrode. We are also making equipment improvements at older stations, such as updating and strengthening piping materials and taking measures for electrical corrosion protection, to suit the needs of situation.

Double-shell tank

Double-shell tank

For the number of environmental accidents and our compliance with environmental laws and regulations, please see “Number of environmental accidents” in ESG Data.