[ Japanese ]

Sekisui House prioritizes the health and safety of employees, including those of partner building constructors and construction workers, as we believe it is paramount to our daily operations. The Sekisui House Corporate Ethics Guidelines^*1 and the Health and Safety Management Regulations have been established to ensure workplace health and safety, create comfortable working environments, and maintain and improve support for employee health. We request all officers to respect and uphold these standards. Additionally, the Sekisui House Association,^*2 comprising Group companies involved in construction and partner building constructors, collaborates with suppliers to strive for zero occupational accidents. Our goal is to create healthy workplaces where everyone can work with safety, peace of mind, and comfort.

Sekisui House has established the Health and Safety Management Regulations, which lay out a health and safety management structure headed by the President (Yoshihiro Nakai, Representative Director of the Board, CEO, President, Executive Officer). For employees, the Director of the Board responsible for the Human Resources Division (Satoshi Tanaka, Representative Director of the Board, Executive Vice President and Executive Officer) oversees the system, with the Human Resources and General Affairs Department administering its operations. A health and safety committee meets monthly at each workplace to enhance occupational health and safety awareness and improve related initiatives. The committee members are diverse in terms of grade, qualifications, age, and gender. Committee discussions are communicated to employees via email and notices. Furthermore, each division and worksite annually selects a non-managerial employee as a worker representative to engage in dialogue with management.
　　For partner building constructors and construction workers that Sekisui House engages as a specified principal employer, the officer in charge of the Division of Technology and Production (Koya Matsumura, Managing Officer) oversees the system, with the Construction Strategy Department administering its operations. We formulate Company-wide annual health and safety plans for partner building constructors and construction workers and draw up occupational accident prevention measures as needed. To improve operational safety standards, we provide partner building constructors and construction workers with guidance and support regarding their health, safety, and employment management training.

One of our international subsidiaries, Sekisui House Australia, has obtained certification under ISO 45001, the international standard for occupational health and safety management, for its offices and factory (the Ingleburn Manufacturing and Quality Control Centre). In August 2025, we expanded the scope of certification beyond the head office and Ingleburn Manufacturing and Quality Control Centre to include all sites associated with the homebuilding business and apartment & mixed-use developments business. This expansion enables the uniform management of safety, environmental performance, and quality at all sites based on international standards, as well as legal compliance and ongoing improvements. The company undergoes annual external audits to maintain this certification.
　　This is the sole ISO 45001 certified production facility among our five domestic factories and one overseas, representing a certification rate of 16.7%.

We provide health and safety education for employees as a measure to prevent occupational accidents. In the unlikely event that such an accident involving an employee occurs, the workplace where it took place promptly contacts the Human Resources and General Affairs Department, and the information is shared Company-wide through the Health and Safety Committee or other means. In addition, the Health and Safety Committee strives to prevent recurrence by conducting thorough analyses, raising awareness of health and safety, preventing unsafe behavior, and discouraging long working hours that can lead to accidents and illnesses.
　　Since we extensively use Company vehicles for work-related activities, the risk of traffic accidents is significant, making safe driving management and education essential. The Company has established Safe Operation of Work Vehicle Management Standards, appointing a vehicle management supervisor at each workplace and a manager at the head office responsible for comprehensive supervision. Through this structure, we are implementing thorough vehicle operation management, as well as safe driving instruction and education at each workplace. Additionally, we conduct annual traffic safety training for all employees.

Promoting traffic safety

In concert with the National Traffic Safety Campaign held in spring and fall and organized by the Cabinet Office, we implement annual traffic safety promotion activities for all employees. At worksites, employees watch videos of actual traffic accidents that have occurred at Company locations, as well as safe driving instructional videos. This is complemented by group discussions that encourage employees to learn about diverse hazard prediction approaches and techniques. These activities provide an opportunity for employees to think about actions individuals can take to promote safety. In addition to making the annual signing of pledges compulsory, we are implementing other initiatives to prevent drink-driving such as thorough sobriety checks when operating a vehicle. Through these initiatives, we promote adherence to traffic rules and encourage safe driving practices among all employees, ultimately striving to reduce the number of accidents in which they are involved.

Occupational health and safety management system for construction departments

In Sekisui House’s construction departments, we have integrated the Sekisui House Zero Hazard System, which incorporates the Occupational Health and Safety Management System recommended by the Ministry of Health, Labour and Welfare while taking into account the unique characteristics of construction sites. Through this integration, we implement comprehensive health and safety management activities. To reduce occupational accidents, it is essential not only to address compliance with legal requirements and prevent the recurrence of past accidents, but also to identify and assess risk sources through risk assessments. We formulate and execute annual plans for implementing necessary measures. By respecting and passing on knowledge over the years, we aim to enhance our management tools and raise overall standards, maximizing the effectiveness of our efforts to ensure health and safety at construction sites.
　　To improve the efficiency of analyzing trends in accidents and incidents throughout the Company, we are systematizing our safety management processes. Specifically, we operate an accident management system to report, share, and manage information in the event of an accident, while we have also developed and operate a Safety Promotion App to systematically record findings and corrective actions during safety patrols of construction sites. Furthermore, since 2026, we have used a Construction Management App to digitally manage information related to design plan confirmation at construction sites, site management, and safety promotion documents to promote more efficient interactive management between construction contractors. Through these initiatives, we are dedicated to reducing occupational accidents at construction sites. In the event of an occupational injury or accident, the affected construction site promptly informs the Construction Strategy Department, which ensures that information is shared across the entire Company.

Outline of Sekisui House Zero Hazard System

Construction site priority accident prevention themes and plan outline in FY2025

After reflecting on accidents that occurred at construction sites in the previous fiscal year, we set the following priority themes for FY2025: the elimination of falling accidents, the elimination of construction machinery/crane-related accidents, and making steady progress on and promotion of priority measures. Based on these themes, we have developed a Company-wide annual plan. To ensure safe and secure construction sites, we will continue to thoroughly implement fundamental safety activities and establish effective measures.

Reflecting on specific initiatives regarding key themes

Occupational health and safety training at construction sites

To strengthen the Company-wide safety management system, we conducted safety training for around 2,400 onsite managers at locations nationwide to further improve their understanding of laws and regulations and safety standards. In this training, in addition to confirming understanding of laws and regulations among management-level employees and the level of safety management conducted at construction sites, we work together to unify management systems across Japan. This initiative aims to both boost safety awareness and establish the relevant expertise. We will continue with training moving forward to build an even more robust safety management system.

Assessing safety risks related to construction sites

Sekisui House’s business operations involve the use of heavy machinery and work performed in heights, which increase the potential for fatal accidents. Therefore, we conduct thorough site inspections at each business location for all new projects for which we receive orders. In addition to planning construction in accordance with manuals and assessing risks related to the safety of construction workers, we also evaluate the impact on local residents in compliance with Japanese laws from the planning stage.

Occupational Health and Safety Management Initiatives

Occupational health and safety initiatives at Konoike Construction

As part of its commitment to occupational health and safety, Konoike Construction, a Group company, has maintained certification under the Construction Occupational Health and Safety Management System (COHSMS) at all its offices since 2014. Striving to eliminate accidents, Konoike Construction conducts regular internal audits of construction sites, safety patrols, and provides health and safety education for its employees as well as the management and workers of partner companies.

Collaboration with Sekisui House Association

The greatest strength of the Group is the Sekisui House Association, which consists of Group companies involved in construction and partner building constructors. Since its founding, Sekisui House has practiced a responsible construction system. Our partner building constructors are invaluable assets, and we hold them in high regard, nurturing long-term relationships based on trust and mutual interest in the spirit of a “community with a common destiny.” To achieve customer satisfaction, the Sekisui House Association cooperates with each Sekisui House office to implement various initiatives. These initiatives focus on safety measures, improving construction quality, providing solutions for customers and neighbors, achieving zero emissions, keeping construction sites tidy, developing human resources, and improving working conditions. Moreover, the association serves as a platform for information exchange, allowing individual construction sites and partner building constructors to share issues they face and collaboratively explore potential solutions. The association also provides training and educational opportunities aimed at improving work processes and construction quality. In times of natural disaster, such as when an earthquake or flood strikes, the Sekisui House Association plays a crucial role in facilitating action, from initial response to restoration and reconstruction efforts. We are committed to continuing our collaboration with the association to enhance customer satisfaction and elevate the value of the Sekisui House brand, striving for coexistence and co-prosperity as “a community with a common destiny.”

Achieving Customer Satisfaction with the “Community with a CommonDestiny” Mindset

Onsite safety patrols (including contractor sites)

To prevent accidents, Sekisui House conducts regular safety patrols at worksites. These patrols check that construction is being carried out in accordance with our safety standards and are performed not only by Sekisui House’s onsite managers, but also by contractors. By involving construction contractors in these patrols, we aim to go beyond merely issuing one-sided corrections and directions to foster a more substantive understanding of our health and safety standards.

The number of fatalities among Sekisui House employees over the past three years was zero. For contractor in Sekisui House construction departments, there was one fatality due to occupational accidents in FY2023 (due to heat stroke), zero in FY2024 and FY2025. The lost time injury frequency rate for the Group^*4 was 0.82 in FY2025. In contrast, the lost time injury frequency rate for contractors of the Sekisui House Group^*5 construction departments improved to 1.99 from the previous year. We will continue to develop annual plans and strengthen our initiatives to achieve zero occupational accidents

Occupational accidents at construction sites and responses

Occupational Accidents at Construction Sites by Type (including those not resulting in lost worktime, excluding heat stroke)