Quality control/quality assurance

Our group has defined its fundamental approach to quality as "to ensure product safety and minimize impacts on people and the environment by promoting quality assurance activities that consider the entire lifecycle of the products and services we provide, from development to consumption or disposal, and striving to improve customer satisfaction and protect consumers." The following policies are stipulated in our "Basic Guidelines for Quality Assurance," which is the highest level of internal regulations regarding quality.

Our group's quality assurance system consists of two systems: one at each division/office/major affiliated company level, and one at the corporate level that supervises them. In actual quality assurance activities, these two systems work together to ensure that the quality assurance policy is realized throughout the group.

Quality assurance system at corporate level

Quality Assurance Headquarters was established to strengthen the governance of the entire Minebea Group in terms of quality. Quality Assurance Headquarters The Safety, Environment & Quality Assurance Department serves as the secretariat of Board of Directors, with the director in charge of quality assurance (director) appointed by as the general manager, the general manager of the Safety, Environment & Quality Assurance Department as the deputy general manager, and the presidents of General Managers and major affiliated companies related to quality as the members of the department. Quality Assurance Headquarters The Safety, Environment & Quality Assurance Department (SEAQA) promotes important matters such as establishment of policies for company-wide quality assurance activities and maintenance, review, and improvement of the quality management system, while each department and major affiliated company implements the PDCA cycle for its own department in accordance with the policies. Quality Assurance Headquarters At the meeting, progress is managed and the basic policies for the next fiscal year of the Group are decided. In addition, quality audits are regularly conducted on the quality assurance activities of each department and major affiliates to maintain and improve the management system.

●Quality management system (PDCA cycle)

● Management system related to safety, environment, and quality

Within our group, each department and major affiliate company conducts quality control activities at every stage, from product development to manufacturing and sales, contributing to the maintenance and improvement of product and service quality that meets the needs of our customers and society. Furthermore, each department and major affiliate company has implemented its own quality management system to guarantee the quality of products and services provided to our customers. As of June 30, 2026, our group has 33 ISO 9001 certifications.

In the lubricant business, all of our bases in Japan and overseas have obtained ISO9001 certification. We position quality assurance activities as the cornerstone of our business, and strive to improve product quality through the ISO9001 quality management system. We continue to promote the prevention of complaints and troubles with the aim of eradicating complaints.

No major quality claims that would have a significant impact on business operations occurred in 2025.

Based on the "Product Safety Regulations," we check product safety at every stage, from research and development to sales. Regulations concerning chemical substances in various countries are constantly changing, requiring a speedy and reliable response. Our group has established tools to manage hazard information of chemical substances contained in our products, ensuring that we can reliably respond to changing domestic and international laws and regulations.

Regarding the product safety information of our group, we issue SDS (Safety Data Sheets) based on the law. Products are classified and labeled according to their hazards according to the GHS (Globally Harmonized System of Classification and Labeling of Chemicals). We also have a system in place that allows you to search by purpose or product name on our website and view product safety information.

In a quality management system, quality education for employees who operate it is crucial. We strive to improve the quality awareness of all employees through various training programs for managers and staff, as well as through regular dissemination of information on fundamental quality knowledge and quality lectures held every November in conjunction with National Quality Month.
In addition to these activities, we launched the "Quality Awards" program in fiscal year 2024 with the aim of maintaining and improving the quality awareness of employees involved in quality-related work, including at Complex sites, and to commend their diligent daily efforts. In fiscal year 2025, IDEMITSU AUSTRALIA PTY's Boggabri Mine and Idemitsu Lube Asia Pacific Pte's R&D Analytical Department received the Director's Award.

To enable each department and affiliated company to autonomously promote the PDCA cycle, we conduct various quality-related training programs. These programs target key personnel in each department and affiliated company, providing basic training to learn about roles based on company regulations and the fundamentals of quality assurance, as well as specialized training to deepen expertise in various fields such as auditor training and chemical substance management.

● Quality education and training track record

In the unlikely event that a serious problem regarding product safety or quality occurs, we will respond in accordance with our ''crisis response rules'' to minimize social impact and damage. Complaints and inquiries regarding quality are received at our Customer Center, and depending on the nature of the matter, we coordinate with relevant departments and offices of our group to respond promptly.