Occupational safety

The Idemitsu Group's safety philosophy is to "make people's safety our number one priority, reduce and eliminate risks through appropriate allocation of management Resources, maintenance and improvement of facilities, processes and work systems, and strive to eliminate accidents and disasters while cultivating a culture of safety." Safety based on this philosophy is the result of management efforts, and zero accidents and disasters is the greatest achievement in this field. Based on this recognition, we have made safety the most important and prioritized standard in various value judgment criteria for all business activities, such as production, logistics, sales, and research and development, all work, and all actions in each situation and stage. We have established the following specific policies in our internal regulations, "Basic Principles for Safety, Health and the Environment," and are working to ensure the health, safety and security of all people related to our company.

Furthermore, to ensure the implementation of the "Basic Policy for Ensuring Safety," we have formulated the "Occupational Safety and Health Management Regulations," based on which we have established a system for ensuring safety and occupational health, as well as procedures for formulating, implementing, evaluating, and continuously improving plans (occupational safety and health management system). We strive to ensure the safety of all workers, including employees and employees of affiliated companies, and to maintain and improve safety standards.

The Group has long positioned "safety, health, and the environment" as the foundation of its management, and has established "Safety & Environmental Protection Headquarters" to promote efforts to secure and preserve these areas. The Safety & Environmental Protection Headquarters consists of the Safety & Environmental Protection Headquarters President, the Deputy General Manager, the President of the General Managers and major affiliates concerned, and other persons appointed by the Safety & Environmental Protection Headquarters Heads and the Secretariat.
The officer in charge of safety and the environment (director) is delegated by the President and Representative Director to supervise the division as the chief officer involved in safety, health, and the environment, and the Safety, Environment and Quality Assurance Department serves as the secretariat.
Safety & Environmental Protection Headquarters determines the Medium-term Management Plan, annual basic policy, and priority issues related to the safety and health environment, and then grasps and evaluates the results of safety and environmental audits, and maintains, reviews, and confirms the status of improvements to the safety, health, and environmental management systems. As a corrective action or review, the general manager of the division conducts a management review at the Safety & Environmental Protection Headquarters meeting and reflects it in the basic policy for the next fiscal year.
Within these systems, each Complex consistently pursues and works from top management to always give top priority to human safety.
In addition, we have established a Safety and Safety Assurance Advisory Committee that includes external experts to prevent large-scale accidents in Complex, and we are working to build more effective safety and security measures.

● Management system related to safety, environment, and quality

To monitor and promote the activities of each department and major affiliated company, our secretariat conducts safety and environmental audits once a year at our Refineries/Complexes. For other locations, the frequency of safety and environmental audits is determined based on the safety and environmental risks and safety and environmental management status of Complex. If any areas for safety and environmental improvement are found during the audit, the secretariat follows up on each case from the determination of the response plan to its completion. In addition, the head and deputy head Safety & Environmental Protection Headquarters visit the sites every year to conduct dialogue on improving safety and environmental conditions.

To ensure safety and the environment throughout the company, we have established the "Guidelines for Risk Assessment Regarding Safety and the Environment," which lay out our basic approach to identifying hazards and procedures for risk assessment.
Based on these guidelines, we comprehensively identify potential hazards, including those in processes and equipment, conduct risk assessments, and take appropriate measures based on the results to reduce or eliminate risks.
In addition, for high-risk cases, Safety & Environmental Protection Headquarters Secretariat checks the management status and shares it with Management Committee to ensure progress on the action plan.

The Group utilizes the safety and health know-how it has cultivated through its experience to build and operate its own management system that complies with the international standard for occupational safety and health management systems (ISO45001) and the certification standards of the High Pressure Gas Safety Act.
We also strive for continuous improvement through internal audits and management reviews.
As of the end of June 2025, 10 domestic and overseas Complex will have obtained ISO 45001 certification.

Under the guidance of Safety and Safety Assurance Advisory Committee, we have revised our earthquake countermeasures, such as strengthening facility structures, that we have implemented since fiscal 2005, to reflect new thinking and to include measures against storm surges and typhoons in fiscal 2021. Based on this guideline, we have since been examining specific issues, such as measures against major typhoons and seismic evaluation and countermeasures from the perspective of BCP for anticipated earthquakes.

Our company is committed to "a challenge to achieve no accidents" and is working towards the goal of "zero serious personal injury accidents."

● Idemitsu Group's Safety and Environmental Performance in 2025

Our company has set forth the "Challenge to Accident-Free Operation" and is working towards the goal of "zero serious personal injury accidents." However, in 2025, there were 59 incidents resulting in lost work time, including one fatal accident at one of our partner companies (35 at our company and 24 at partner companies).
In addition to thoroughly implementing measures to prevent recurrence of each incident, we hold company-wide case review meetings for serious personal injury accidents or cases that had the potential to result in serious personal injury accidents, and we are working to implement horizontal deployment measures to prevent serious personal injury accidents. In 2026, we will continue our "Challenge to Accident-Free Operation" and strive to thoroughly enforce "Rules to Protect Lives*" and establish a culture of adhering to and ensuring that established rules are followed.

Strengthening the earthquake resistance of existing facilities

The Tokachi-oki earthquake in 2003 prompted the Group to establish Safety and Safety Assurance Advisory Committee. In addition, through activities such as the Facility Structural Reinforcement Study Group, which covers Refineries/Complexes, we have been evaluating and implementing measures against anticipated earthquake strengths that exceed the legal standards.
From fiscal 2020 onwards, we will utilize the government's subsidy program for strengthening our facilities and will be carrying out seismic assessments and measures against anticipated earthquakes at oil terminal in addition to Refineries/Complexes from the perspective of BCP ^*, and working to reinforce our facilities. Going forward, the Group will continue to consider and implement further earthquake resistance enhancements.

Super certified Complex

Our group's Refineries/Complexes are working to improve safety capabilities based on advancements in safety technology, including the use of advanced technologies, sophisticated risk assessments, and advanced education and training. As a result, the following Refineries/Complexes have been certified as "Super Certified Complex" under the High Pressure Gas Safety Act for their advanced safety measures.
Furthermore, at Tokuyama Complex, following the establishment of the Certified Advanced Security Implementer System on December 21, 2023, we obtained certification as our first "Specified Advanced Security Implementer (Certified A)" on September 4, 2026. We are promoting the transition to smart security through strengthened cybersecurity measures and the utilization of digital technologies, thereby further improving our security capabilities and strengthening our international competitiveness.

●Classification of Complex regarding security

Utilizing advanced technology to ensure safety

We are verifying and introducing cutting-edge technologies across the entire company. Examples include the construction of an AI-based equipment corrosion diagnosis system, the development of AI-based equipment monitoring technology, the use of AI in boiler combustion control to suppress equipment fluctuations, cybersecurity measures, VR-based risk experience education, and practical simulators. We are introducing a variety of technologies tailored to the situation at each location.

National Safety Week Initiatives

For our company, whose philosophy of ensuring safety is to "ensuring people's safety as the top priority," the National Safety Week, which is held for the purpose of preventing industrial accidents, is a valuable opportunity to inspect workplace safety. Taking this opportunity, the President and CEO sends a message to all employees of our group, expressing his/her determination toward safety, and we are striving to ensure thorough compliance with the "rules for protecting lives" established by our company.

●FY2025

●FY2024

It has now been renamed the Lubricants Lubricants Research Laboratory.

●FY2023

Safety/environment/quality education training

To enable each department and affiliated company to autonomously promote the PDCA cycle, we conduct various training programs related to safety, environment, and quality. These programs target safety and environmental officers and personnel within each department and affiliated company. These include basic training to learn the roles based on company regulations and the fundamentals of safety and environmental management and quality assurance, as well as specialized training to acquire knowledge and skills in various specialized fields, such as auditor training, accident and failure analysis skills improvement, and chemical substance management.

● Safety and environmental training track record

Practical firefighting training

[Disaster prevention training for personnel at Refineries/Complexes]

In the event of a fire, explosion, or other fire, it is crucial to minimize damage inside and outside Refineries/Complexes by implementing initial firefighting activities and measures to prevent further spread. Therefore, we are committed to training disaster prevention personnel by continuously conducting practical training based on the fundamental theories of fire prevention and firefighting. For example, we conduct classroom training on the basics of disaster prevention activities, and systematic training on handling equipment and deploying hoses using actual machinery. In particular, at Hokkaido Refinery, Chiba Complex, and Aichi Complex, we also conduct flame contact training using actual fire training grounds.
Furthermore, we utilize external training institutions to conduct classroom and practical fire training sessions at our group's Complex and oil terminal, simulating initial response to a fire. This helps us improve our initial firefighting capabilities at our Complex by enabling them to acquire initial firefighting methods appropriate to the nature of oil fires.

Education and training hosted by the Safety and Technical Training Center Manufacturing & Technology Department

[Development of manufacturing equipment operators]

The Safety and Technical Training Center provides training to develop production site operators as production engineers (PEs). PEs are engineers in the operations Refineries/Complexes who have a logical understanding of processes, equipment, and systems, and who can make comprehensive decisions based on their interrelationships, ensuring the safety of our Refineries/Complexes by optimizing their safe and efficient operations.

[Strengthening safety education]

The Safety and Technical Training Center is working to strengthen safety education. For example, it conducts shift manager training for shift managers or their substitutes (assistant shift managers) with the aim of improving their decision-making skills in emergency situations. This training is a practical, in-house developed training that uses a training plant modified from a desulfurization unit that was actually operated by our company, and participants form operating teams to conduct the training. Participants participate in realistic training that includes reporting an anomaly occurring at night or on a holiday, initial response, emergency shutdown, disaster prevention activities, and evaluation and analysis as the incident progresses. In addition, safety management training is conducted for newly appointed technical Manager and section chiefs at Refineries/Complexes and related companies. This training is divided into basic and follow-up sessions, and each participant confirms key points of safety management in the basic training and then clarifies an action plan for fostering a safety culture. Based on the six months of practical experience, the follow-up curriculum for section chiefs includes a review of "overall management," while the curriculum for Manager includes a review of "mindset regarding words, actions, and practical work related to security."
In addition, we have received high praise from outside the company for providing our hazard simulation equipment and VR to support lectures, such as experiential training for government agencies and organizations, and safety supervision improvement courses held by business personnel development associations as part of our efforts to cultivate human resources in collaboration with local communities.

Utilization of external education

[Training for top management]

To prevent serious industrial accidents, it is crucial that top management, such as Refinery and Complex have a strong sense of safety and promote accident prevention measures under their strong leadership. Therefore, oil and chemical industry organizations and related companies, including our company, appealed to an external training center to emphasize the importance of fostering safety awareness among top management. This led to the center hosting a special lecture, "Future Safety and the Role of Top Management," which has been held regularly since 2016. This year, we are planning to hold a "Future Safety Management Forum," where top management from the oil and chemical industries in the petroleum complex, which is undergoing a period of major change, will exchange opinions across company and industry boundaries. At our company, on-site Refinery and Complex and top management from the headquarters' Manufacturing & Technology Department take this lecture every year, strengthening our industrial safety leadership alongside Refinery and plant managers from other companies, primarily those located near the center.