Social Contribution Activities

• Basic Approach & Policy
• Initiatives

Basic Approach & Policy

The corporate philosophy of the Haseko Group is “To contribute to society by creating an optimal environment for cities and people,” and we implement social contribution activities under this philosophy.
Leveraging the technology and know-how we have nurtured thus far, we will work on initiatives that focus closely on social issues surrounding our daily lives while placing importance on our relations with local communities.

Initiatives

Helping resolve regional issues

Regional development and revitalization represents one of the priority areas of our social contribution activities. In implementing these initiatives, we aim to align them with our business strategy by leveraging the Group's expertise in architecture and related fields, while also seeking to enhance services for residents of the condominiums we manage.

Haseko Technical Center: Activities in Tama City, Tokyo

Haseko Corporation’s Haseko Technical Center in Tama-shi, Tokyo, has a publicly accessible Haseko Condominium Museum (by appointment only) as well as a biotope inhabited by many living creatures.
The Center serves as a space where we can engage with members of the local community and share the attractiveness of building condominiums through various disaster prevention events and workshops.

• Press Release: 2nd Haseko Mansion Museum Disaster Prevention Festival Held (Japanese Only)
• Press Release: Children’s Workshop Held at Haseko Technical Center (Japanese Only)
• Press Release: First Ever “Let’s Build a Town on the Odakyu Tama Line” Held as a Collaboration between Haseko Mansion Museum and the Romancecar Museum (Japanese Only)

Activities at Sustaina Branche Hongyotoku

On August 23, 2025, Haseko Corporation held a disaster-prevention fair at the rental condominium Sustaina Branche Hongyotoku for residents and the local community.
In addition to presenting the Haseko Group’s disaster prevention technologies, the objective of this event was to have participants find out about the initiatives taken at this condominium to protect lives and building facilities in the event of a natural disaster. A total of 307 residents and members of the local community participated on the day, and they got involved in activities that included a virtual disaster prevention drill (patent pending) that teaches about natural disasters using the metaverse (a 3D virtual space), and the use of pure hydrogen fuel cell generators in the event of a power cut. With the cooperation of the Ichikawa City Fire Department in Chiba Prefecture, we also conducted fire drills on the grounds of the adjacent Tokuganji Temple, including initial firefighting training as well as exercises that allowed participants to experience the shaking of a major earthquake and the smoke from a house fire. Going forward, this condominium will continue to serve as a disaster prevention base for the local community.

• Press Release: Disaster Prevention Fair Held at Sustaina Branche Hongyotoku (Japanese Only)
• Sustaina Branche Hongyotoku Concept Page (Japanese Only)

Hosoda Corporation: Regional coexistence activities in Suginami-ku

Hosoda Corporation’s efforts to serve as a good corporate citizen include organizing cultural exchange initiatives to promote artistic and cultural activities and hosting seminars and events to support people’s lives, with the aim of realizing comfortable and affluent communities and societies and their sustainable development. Through these activities, Hosoda Corporation promotes active participation and living together with local community of Asagaya in Suginami-ku, in which the company's head office is located.

Participating in regional cleaning activities and campaigns

The Haseko Group continuously participates in cleaning and other activities in the region closely related to its business activities

• Press Release: Haseko Group’s Sustainability Activities: Participation in Osaka Marathon Cleanup Mission (Japanese Only)

Cooperating in blood donation

As a corporate blood donation supporter of the Japanese Red Cross Society, we run a blood donation campaign each year. In FY2024, we run a blood donation campaign twice each at Shiba Head Office Building in Tokyo and Hiranomachi Building in Osaka, in which a total of 241 employees donated their blood.

Next-generation development support

Award ceremony of 18th Haseko Residential Design Competition

Haseko Corporation has been holding the Haseko Living Design Competition targeting students across Japan, with the aim of fostering young people who wish to work in the world of architecture. The competition, held since 2007, invites submission of apartment building designs derived from freewheeling thinking unique to students, under a theme that reflects the social challenges and trends of the times.
The theme for FY2024 was “Mixed collective housing,” and we received highly imaginative proposals for mixed collective housing that only students can produce. There were a total of 296 entries accepted (from 557 entrants). At the open judging session for the second round, we selected one first prize winner and three excellence award winners through presentations made by the four groups of finalists who had passed the first round and interviews and screening processes by the judges.
We will continue this program as a way to raise interest in housing and cultivate talented students. (In FY2025, for the 19th edition of the event, we have begun accepting applications under the theme of “A village of 100 people.”)

• Summary video of the judging session (to YouTube) (Japanese Only)
• 19th Haseko Residential Design Competition (Japanese Only)

HASEKO Riko Challenge Summer of 2025 Condominium Museum Tour & Condominium Experience Tour

Since 2017, the Haseko Group has endorsed the Riko Challenge Summer jointly organized by the Gender Equality Bureau Cabinet Office and other bodies to support female students choosing to pursue careers in science and technology, and participated in the event as a supporting organization.
In FY2025, we held the HASEKO Riko Challenge^* Summer of 2025 Condominium Museum Tour & Condominium Experience Tour on July 30 and August 25, which was attended by 48 people, consisting of 22 groups of elementary, junior high, and high school students and their guardians (26 of which were elementary, junior high, and high school students).

• An initiative jointly organized by the Gender Equality Bureau Cabinet Office and other bodies to support female students choosing to pursue careers in science and technology

They were shown how fascinating building condominiums can be through a range of activities such as a reinforcing bar detection experiment to inspect whether the reinforcing bars within the concrete are embedded in the correct position, a hands-on experience at mixing mortar, and a visit to the Haseko Condominium Museum.

The Construction Explorers event

Participants trying their hand at construction work

Participation in the EXPO School Caravan

HASEKO Corporation held outreach classes on the theme of “SDGs” as part of the EXPO School Caravan. The EXPO School Caravan is a program organized by the Secretariat of the Headquarters for the World Expo, Cabinet Secretariat. With the cooperation of companies and organizations participating in the Osaka, Kansai EXPO, classes are held at elementary schools, junior high schools, high schools, special needs schools, and other institutions nationwide. The program aims to encourage children and students across Japan to use the Osaka, Kansai EXPO as an opportunity to think about the future society and translate those thoughts into future actions.
In the classes, attendees learned about the SDGs, particularly how the Haseko Group is involved in the Osaka, Kansai EXPO and what kinds of initiatives it is conducting to achieve the SDGs.

Scenes from outreach classes

Initiatives to promote social contribution activities

The Haseko Group is striving to further invigorate philanthropic activities based on the view that employees' voluntary efforts in social activities will lead to a higher awareness of social issues, help create more value in business activities, and realize a sustainable society.
We are currently running the Let’s Action! My SDGs campaign to generate awareness of the importance of social contributions in employees, in which a section of the company newsletter is set aside for introducing day-to-day, SDG-related initiatives by employees and calling for more employees to participate in the same. As the combined actions of each individual have great significance, by sharing information about these activities, we hope to give more employees opportunities and inspiration to get involved in solving social problems.
The Haseko Group will continue with these efforts and raise SDG activities to greater heights.

Donation and sponsorship

Platinum Partner of the “Future of Life” installation at Expo 2025

The Haseko Group is a Platinum Partner sponsor of the “Future of Life” thematic installation created by thematic producer Hiroshi Ishiguro at the Signature Pavilion thematic project of Expo 2025 Osaka, Kansai, Japan. The Group contributes in-kind design collaboration and construction services as well as materials to the installation. This installation's thematic project name is “Amplification of Lives.” By constructing and displaying what lives might look like fifty or a thousand years from now, it is hoped that visitors will enjoy an unforgettable experience. Producer Hiroshi Ishiguro and sponsor companies co-create the “Future of Life,” depicting new ways of being alive as humans and a society based on advanced IT and robotics technology which Producer Hiroshi Ishiguro is developing. Through the Signature Pavilion, he will convey his vision of the living environment and housing in an ideal society of the future shared by humans and robots to the world.
Ishimoto Architectural & Engineering Firm is responsible for design, while design cooperation is provided by Haseko Corporation. The Haseko Group and FUJIKENSETSU are jointly undertaking construction work (excluding demolition and part of the works).

• Hiroshi Ishiguro Signature Pavilion’s “Future of Life”
• Press Release: In-kind sponsorship of “Future of Life” installation at Expo 2025 through design collaboration and construction (Japanese Only)

Donation to Kyoto University of the Former Residence of the late Dr. Hideki Yukawa

In August 2021, as an act of corporate social responsibility, Haseko Corporation acquired the residence of Dr. Hideki Yukawa, Japan’s first Nobel Prize winner in Physics, and donated the property to Kyoto University (President: Nagahiro Minato). The residence, near Kyoto’s Shimogamo Shrine, is where Dr. Yukawa spent his last years. Haseko Corporation made the donation to affirm its agreement with Kyoto University’s desire to make effective use of the building to pass on the achievements and footprints of the late Dr. Yukawa to future generations, to develop our country’s science, technology, and arts in the future, and to develop human resources.
In 2023, maintenance and renovation works to ready the property to last well into the future commenced, with Tadao Ando Architect & Associates contributing reconstruction design services to the University and our Group’s Hosoda Corporation and Kyoto-based traditional Japanese carpenters, Yasuimoku Koumuten, handling construction. In March 2024, the works were completed and the building handed over to Kyoto University. Parts of the building that evoke a connection to Dr. Yukawa were retained, while contributing to the landscape of the city. The building, bearing the name of Kyoto University’s Shimogamo Kyueiso, will host the University’s esteemed guests and serve as a space for its faculty for educational, research, and conference purposes.

Special sponsor of the Prince Chichibu Cup All Japan Intercollegiate Ekiden

The Haseko Group will sponsor the Prince Chichibu Cup 57th All Japan Intercollegiate Ekiden, scheduled to be held on November 2, 2025, as a special sponsor. The Group began to engage in this special sponsorship in 2019, and this is the seventh time supporting the event in this way.
Employees of the Haseko Group supported the event under the theme of “Go for it, runners! Go for it, employees! A handmade ekiden, created by everyone,” signifying their proactive support. Over 480 Group employees gathered from around the nation to provide support as one, at ad-hoc regional qualifying races held across eight regions across Japan as well as the main competition.
The Haseko Cheering Special Site (available in Japanese only) features the latest information about the regional qualifying races and the main competition, as well as photos of employees cheering them on from all over the country. The mineral water with Haseko’s original Ekiden label, which has been well-received every year, was completely revamped with new bottle labels for both the general and regional qualifying races, featuring Haseko’s original Ekiden mascot, “Megapon.” The mini keychains for bottles were also prepared again this year and provided to all participating teams along with the mineral water.
Through this special sponsorship, we will contribute to the promotion of sports and the development of local communities, as well as strive to increase our recognition and corporate value as a corporate group that is expanding its business nationwide in addition to the Kanto, Kansai, and Tokai areas.

• Go for it! Special site for the 2025 Intercollegiate Ekiden (Japanese Only)
• Go for It! Intercollegiate Ekiden: Video report on Haseko’s ekiden support (to YouTube) (Japanese Only)

Sponsorship of the MINATO City Half Marathon

Since the second edition of the event in 2019, the Haseko Group has been a platinum sponsor of the MINATO City Half Marathon, a sporting event for people of all ages from children to seniors, all nationalities, with or without disabilities, for the purpose of realizing a mutually beneficial society through sports.

Participation in Open House Osaka

Open House Osaka is Japan’s largest architectural event showcasing attractive architecture in Osaka on a weekend in the fall of every year. The Company has supported and participated in this event since 2019.

• Open House Osaka (Japanese Only)

Sponsorship of environmental conservation activities by Jumokui Jimbe General Incorporated Association

Jumokui Jimbe is a general incorporated association located in Kinan, Wakayama whose environmental protection and preservation activities include conservation of Kumano cherry trees^*.
The Company sponsors the association’s activities in support of its wish that the region’s Kumano cherry trees, which are at risk of vanishing, continue to flourish, and its environmental conservation efforts across the board.
In 2022, we planted six Kumano cherry trees on the grounds of the Nanki Shirahama BRANCHERA Resort, a holiday facility for employees. We will continue to contribute to the region with our efforts in environmental protection and preservation, while carefully nurturing these saplings in a good environment to leave Kumano cherry trees for the future generations.

• Cherry trees that have grown naturally in Kozagawa town since historic times without being cross bred with non-native cultivated cherry.

Sponsorship of the SEIJI OZAWA MATSUMOTO FESTIVAL

Workforce and expenditures in Haseko Group philanthropic activities

The workforce and expenditures used by the Group for philanthropic activities for the past five years are as follows:

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