Biodiversity

Basic Approach & Policy

Our business activities are built upon the rich natural environment. We will endeavor to prevent pollution and give consideration to nature and ecosystem and contribute to restoring them.

Haseko Group Code of Conduct on Biodiversity

Basic philosophy

The Haseko Group engages in corporate activities based on its Group Philosophy “To contribute to society by creating an optimal environment for cities and people.” By engaging in biodiversity-conscious corporate activities based on the recognition that people and companies reap various benefits from the natural environment, we will endeavor to help conserve and improve biodiversity in pursuit of a more comfortable and sustainable global environment.

Action guidelines
  1. Compliance
    We will comply with laws and regulations, etc. related to biodiversity conservation, identify related policies and social demands and endeavor to reflect our knowledge of them in business activities.
  2. Education and enlightenment
    We will spread knowledge required for biodiversity conservation activities and information on laws and regulations, etc. through in-house education, etc. and raise employees’ awareness of the value of the ecosystem.
  3. Consideration in construction business
    We will implement biodiversity-conscious plans, designs and proposals, and endeavor to avert and reduce the impact of construction work.
  4. Research and development
    We will accumulate information and technological knowledge related to the ecosystem and promote related technological research and development.
  5. Collaboration with society
    We will endeavor to contribute to society through participation in regional environmental preservation activities and academic society/association activities.

For disclosures based on the TNFD recommendations, please refer to the following:

Initiatives

Membership of the 30by30 Alliance for Biodiversity

The 30by30 Alliance for Biodiversity (secretariat: Ministry of the Environment) is a framework of cooperation in which companies, local governments, groups, and other such organizations participate voluntarily with the goal of achieving the “30by30” international target of preserving a healthy ecosystem in at least 30% of land and sea by 2030. Haseko Corporation became a member of the 30by30 Alliance for Biodiversity in November 2022. Through our participation in this alliance, we will continue to drive forward our initiatives toward the conservation of biodiversity in order to help achieve the 30by30 target.

Initiatives by the Haseko Technical Center

The Haseko Technical Center has three buildings on a 17,662 m2 site, and it has ensured there are 8,030 m2 of greenery on this site by greening ground and rooftop areas. Planted on the southern green space are native tree species that produce flowers and fruits favored by birds. A biotope was created in the central area, and Amur minnow and Japanese rice fish from a nearby stream were released into the pond. Ongoing monitoring surveys conducted since its completion in March 2018 have confirmed the presence of many living organisms, demonstrating that the newly created green space at this site contributes to the conservation of biodiversity and serves as part of the ecological network of the Tama Hills in western Tokyo. We utilize the knowledge that we have gained through the initiatives of the Haseko Technical Center in the creation of green spaces at condominiums and in management/operations with an awareness of biodiversity conservation.

Creatures inhabiting the biotope (example)

Haseko Technical Center is certified as a Nationally Certified Sustainably Managed Natural Sites, which is a designation for areas that possess biodiversity value and where biodiversity conservation is being promoted through private-sector initiatives. It is also registered in an international database as an OECM*.

  • OECM: Other Effective area-based Conservation Measures. This refers to areas that contribute to the conservation of biodiversity outside of conservation areas.

Acquired ABINC Business Site Certification

The Association for Business Innovation in harmony with Nature and Community (ABINC) evaluates and certifies the biodiversity-conscious development, management, use, etc. of green areas in companies’ facilities (e.g., factories, office buildings, commercial facilities, condominiums) under its ABINC Business Site Certification (ABINC Certification), with the aim of promoting harmony between nature and people in corporate activities. As part of our initiatives to conserve biodiversity and achieve a society that exists in harmony with nature, we take biodiversity into consideration in our greening plans and other such business, and acquired ABINC Certification for nine projects in FY2025.
We will continue to contribute to the conservation and regeneration of the natural environment in cities through proposals that take harmony with nature into account.

Please refer to the following website to see the properties designed and constructed by Haseko that acquired ABINC Business Site Certification (ABINC Certification).

Biodiversity conservation activities

In line with the Haseko Group Biodiversity Action Policy, the Haseko Group continues to nurture and protect biodiversity through the efforts of employee volunteers.

Main Activities

  • Forest management activities at Haseko no Mori, Chino City, Nagano Prefecture
  • Forest management activities at Haseko no Mori, Tanabe City, Wakayama Prefecture
  • TOKYO GREEN SHIP ACTION Kiyose Matsuyama Green Area conservation activities
  • HASEKO Biodiversity Seminars in Tama City, Tokyo
  • Cleaning activities around Fujimae Higata, Nagoya City, Aichi Prefecture
  • Biodiversity Conservation Activities in Asuka Village, Nara Prefecture

Haseko no Mori Project

The Haseko no Mori project is part of the commemorative business undertaken to mark the 80th anniversary of the founding of the Company in February 2017. In this project, we undertake forest conservation and management in the two locations of Chino City in Nagano Prefecture and Tanabe City in Wakayama Prefecture with the themes of social contribution, future-oriented, and collaboration with the local community. Together with the local community, the Haseko Group as a whole will proactively engage in this project.

The three roles of Haseko no Mori
  1. Forest management and regeneration
    Sunlight cannot reach the floor of a forest if it is overgrown, and this means thin trees may grow haphazardly and some areas may become barren. In such areas, rainwater is not suitably absorbed when it rains, and landslides are thus a danger. First, we will begin by restoring a vibrant, life-filled forest environment through management activities such as thinning the area where we became foster parents and cutting back undergrowth.
  2. A forest where people come together and want to visit again and again.
    Once flowers bloom and the trees bear fruit, butterflies and birds will likely begin to gather. With thriving plants and animals, we intend to create walking paths, open plazas, and small athletic spaces to make it a place where Haseko Group employees and their families, stakeholders, and local community members can gather. Through new interactions, we will watch over the growth of both forests and children.
  3. Continue our activities and contribute to our core business and society.
    Raising forests takes time. Activities need to be kept up over the long term, and a framework for bringing each and every plan to fruition is required. Haseko no Mori will develop this initiative in a way that allows us to share dreams together with local residents and work together alongside them such as by eventually donating trees planted or thinned here for use in condominium landscaping, or by growing trees that residents can use as Christmas trees.
Forest management activities at Haseko no Mori, Chino City, Nagano Prefecture

Our forest management activities at Haseko no Mori in Chino City, Nagano Prefecture, got underway in 2017. Covering an area of approximately 13 hectares, we are working to conserve the forest by continuously carrying out management activities centered on thinning, led by employees and their families, with the cooperation of the Nanaka-Kochi Property Ward, the Nagano Prefectural Forestry Department, and the Suwa Regional Promotion Bureau. These activities have also presented a chance for interaction with local community members and offer opportunities for employees and their families to learn about and engage with the natural environment.
Participating in FY2026, which marked the 10th time these activities have been undertaken, were a total of 82 people that included Haseko Group employees and their families, and they engaged in forest management activities such as felling small trees and clearing fallen timber.

Footpath leading to an open field within Haseko no Mori
Footpath leading to an open field within
Haseko no Mori
A stroll through the forest
A stroll through the forest
An activity in progress
An activity in progress
Forest management activities at Haseko no Mori, Tanabe City, Wakayama Prefecture

Our forest management activities at Haseko no Mori in Tanabe City, Wakayama Prefecture, got underway in 2018 as the second installment of activities under the Haseko no Mori project. Covering an area of approximately three hectares, we are working to conserve the forest by continuously carrying out management activities centered on tree planting and underbrush clearing, led by employees and their families, with the cooperation of the Nakahechicho Forestry Association and other local stakeholders. These activities have also presented a chance for interaction with local community members and offer opportunities for employees and their families to learn about and engage with the natural environment.
Participating in FY2025, which marked the sixth time that these activities have been undertaken, were a total of 65 people that included Haseko Group employees and their families, and they engaged in forest management activities such as maintaining walking paths and planting 700 saplings, including species such as quercus phillyraeoides and Japanese blue oak. A commemorative tree to mark the 40th anniversary of the establishment of the labor union was also planted.

Group photograph
Group photograph
An activity in progress
An activity in progress
An activity in progress
Planting a commemorative tree

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.

Participation in TOKYO GREEN SHIP ACTION

Since 2012, we have participated in TOKYO GREEN SHIP ACTION, a natural environment conservation initiative carried out in conservation areas designated by the Tokyo Metropolitan Government through collaboration among the metropolitan government, NPOs, and companies. The Haseko Group carries out activities in the Kiyose Matsuyama Green Conservation Area and the Hachioji Takiyama Satoyama Conservation Area.

Kiyose Matsuyama Green Area conservation activities

The Kiyose Matsuyama Green Conservation Area is a flat area located in the southwest of Kiyose City, and among other trees, the Japanese red pine, which have become rare in urban areas, flourish across the area. The Haseko Group conducts conservation activities such as mowing grass, cutting bamboo grass, clearing fallen branches and trees, and replacing wooden fences.
In FY2025, the greenery conservation activities we carried out in November marked the 13th time that the Haseko Group had undertaken such activities. The total of 36 participants included Haseko Group employees and their family members, and with the cooperation of the Tokyo Metropolitan Government Bureau of Environment, the Nature Environment Academy (an NPO), and the Kiyose Nature Conservation Association, the participants learned about nature and biodiversity by observing nature, then carried out activities such as grass and bamboo cutting, tree thinning and fallen branch cleanup, and making Christmas wreaths using fallen leaves and nuts.

Group photograph
Group photograph
Christmas wreath making
Christmas wreath making
An activity in progress
An activity in progress
Hachioji Takiyama Satoyama conservation activities

The Hachioji Takiyama Satoyama Conservation Area is an area between mountain foothills and arable land (a “satoyama” area) located in the northeastern part of Hachioji City, where rice paddies, springs, mixed woodlands, and bamboo groves remain together as an integrated forested landscape. From 2013 to 2022, the Haseko Group learned about the nature and biodiversity of satoyama areas by observing nature, and carried out conservation activities such as planting saplings and bamboo, mowing undergrowth, creating pathways, and maintaining ponds.

Group photograph
Group photograph
Cutting bamboo
Cutting bamboo
Observing nature
Observing nature

HASEKO biodiversity seminars

In cooperation with Tama City, we host events for children of elementary school age and their guardians living in Tama City to learn about biodiversity, including the connections between satoyama landscapes, mixed woodlands, and wildlife by observing flora and fauna at the biotope in the Haseko Technical Center and at a nearby park that boasts a rich natural environment. At the sixth “Ikimono Hakken in Tama” (Discover Living Things in Tama) event held in FY2025, participants engaged in nature observations with the theme of early-summer flora and fauna, and went to see a special exhibition entitled “A Grand Conference of Creatures from Tama!” at Parthenon Tama. There were 10 participants (of which five were children), comprising four groups of children and their guardians, at the event, and comments after the event included “Even on paths I use all the time, taking a closer look made me realize how many plants and animals are there. It gave me a renewed appreciation and understanding of our local nature,” and “The special exhibition at Parthenon Tama had a lot of specimens, and the children really enjoyed it.”

Biotope observation
Biotope observation
A pathway leading to Tama Central Park
A pathway leading to Tama Central Park
At the special exhibition
At the special exhibition

Cleaning activities around Fujimae Higata

The Fujimae Higata tidal flat is registered under the Ramsar Convention as an internationally important wetland visited by many migratory birds. Plastic pollution of the oceans has become a major global issue, and in the area surrounding Fujimae Higata, the long-term accumulation of large amounts of plastic waste is also a serious problem.
Employees from the Haseko Group’s Tokai region and from cooperating companies participate in the Fujimae Higata Tidal Flat Clean-Up Campaign organized by the Fujimae Higata Tidal Flat Clean-Up Campaign Executive Committee. This campaign involves large-scale cleaning activities at the Ramsar Convention-registered Fujimae Higata tidal flat located in Nagoya’s Minato Ward and the village of Tobishima, and have been implemented in spring and fall each year since the fall of 2004 through the cooperation of participants including citizens, groups, local residents, educational institutions, companies, and government. The Haseko Group has participated on an ongoing basis since 2017, and our activities in spring and fall this year brought the total number of times we have participated to 15.
On the day of the activities, we picked up trash that included washed up plastic bottles and plastic bags on the shore. Participants commented that single-use plastics such as plastic bottles and instant food containers were seen in great volumes, so we have to move beyond being a single-use society if we are to ensure the sea retains its abundance.

FY2025 Activities
  • May 24, 2025: a total of 23 participants, including a group of 21 composed of employees from the Haseko Group and their family members, and 2 employees from cooperating companies
  • October 18, 2025: a total of 25 participants, including a group of 23 composed of employees from the Haseko Group and their family members, and 2 employees from cooperating companies
Group photograph
Group photograph
Cleaning activities
Cleaning activities

Biodiversity conservation activities in Asuka Village

The village of Asuka in Nara Prefecture is engaged in the Asuka Village Project, and under this project launched a biodiversity conservation initiative in FY2023. The third event under this initiative, held in November 2025, was attended by 33 Haseko Group employees, who carried out activities such as bamboo clearing and brush cutting around the Sakafuneishi ruins in Asuka Village. We will continue our biodiversity conservation activities in Asuka Village and engage in a variety of initiatives to support the revitalization of the local community.

Overview of Sakafuneishi from local volunteers
Bamboo clearing
Vine clearing around the historic site

Related Information