Supply Chain Management

Basic Approach & Policy

Haseko Group’s supply chain

The strength of Haseko Group’s condominium business lies in its unique business model based on exclusive contracts under which land is provided, as well as the Group’s collective capabilities in terms of identifying customers’ needs through sales, management, repair, etc., passing this information on in the form of feedback, and reflecting it effectively in business proposals, product planning, design and construction quality.
Development takes a long period of time, and involves diverse stakeholders. In particular, we have established a highly efficient and precise execution supervision system to pursue quality jointly with our business partners, i.e., cooperating companies with whom we build high-quality condominiums.

Haseko Group Sustainable Procurement Guidelines

The Haseko Group’s business activities are possible due to the support of our many partner companies and other business partners. We consider our business partners to be valuable partners in promoting sustainability.
The Haseko Group promotes procurement activities in accordance with the Haseko Group Sustainable Procurement Guidelines (hereinafter, “the Guidelines”) with the purpose of building a sustainable supply chain. The Guidelines establish basic matters in conducting procurement activities that are conscious of the environment and society. We ask all of our business partners, including subcontractors and agents, to adhere to the Guidelines when conducting business activities.

  • From April 2025, the Haseko Group CSR Procurement Guidelines has been renamed and is now being operated as the Haseko Group Sustainable Procurement Guidelines.

Initiative Targets

KPIs in the HASEKO Evolution Plan medium-term business plan

Initiatives and KPIs Target
Initiatives and KPIsTarget% of response for sustainable procurement questionnaire (construction-related organizations of partner companies) Each FY 100%
% of engagement with foreign workers Implementation rate (based on the number of partner companies) Each FY 100%

For results, please refer to the ESG data.

Initiatives

Implementation of the Sustainable Procurement Guidelines

To ensure the effective implementation of the Guidelines, we obtain written consent on the Guidelines from the partner company organizations of our Group companies, which are our main business partners. In addition, to ensure that all business partners clearly understand the requirement to comply with these guidelines, we are working to include compliance clauses in contracts and to obtain written consent from them.
Furthermore, by conducting a questionnaire of our business partners since FY2022, we are working to confirm adherence to the Guidelines and promote understanding and permeation of our initiatives.

Overview of the questionnaire

Below is an overview of the business partner questionnaire conducted in FY2025.

Survey period August 2025
Companies surveyed 929 companies including the member companies of the Ken-ei-kai (Haseko Corporation), Shinwakai (Hosoda Corporation), Ju-yu-kai (Haseko Reform), Ken-sho-kai (Fuji Kensetsu), Ko-sho-kai (Haseko Community)
  • Some business partners that are not member companies of partner company organizations were also added to the target respondents
Objectives To assess the status of initiatives of the Haseko Group CSR Procurement Guidelines* and spread awareness of compliance
  • Now known as the Haseko Group Sustainable Procurement Guidelines
Survey items Compliance with laws and regulations related to the matters in the Guidelines
Response status 922 companies (99.2% response rate)
Implementation results
  • We confirmed that there are no significant compliance problems.
  • We confirmed individually with some partner companies to promote understanding of related laws and regulations.

In July and August 2023, we conducted a questionnaire on the traceability of timber and a questionnaire on the treatment of foreign technical intern trainees employed by partner companies. Please refer to “Respect for Human Rights” for details.

Activities through partner companies’ organizations

Framework of cooperation among "four bodies"

Haseko Corporation is in charge of building condominiums with a high degree of precision through the combined efforts of the four bodies (i.e., the construction divisions, design divisions, and technological promotion divisions of Haseko Corporation as well as Ken-ei-kai, an organization of business partners consisting of approximately 300 major cooperating companies). This cooperative relationship has continued for more than 25 years, and our quality control framework built on strong ties is a strength that no other company has.
Our activities in pursuit of growth are conducted together with organizations of business partners, namely: Koshokai and Koshokai Kansai at Haseko Community; Tokyo Juyukai and Kansai Juyukai at Haseko Reform; Tokyo Kenshokai and Kansai Kenshokai at Fuji Kensetsu; and Shinwakai at Hosoda Corporation.

Framework of "four bodies"

HASEKO Value Enhancement Activities

Value enhancement activities are activities to provide high-quality condominiums with the aim of clarifying the responsible construction scope, saving labor, and improving work efficiency and improving the Haseko brand based on cooperation between the technology-related divisions and Ken-ei-kai. Activities that are currently being promoted include initiatives to improve operational efficiency through the utilization of cutting-edge technologies as well as initiatives to further boost productivity aimed at instilling activities toward Workstyle Reform, which may be regarded as an industry-wide challenge. The outcome of activities are shared at the Debriefing Session on Value Enhancement Activities held once a year, in pursuit of succession, widespread acceptance, and collaboration at a deeper level.
In FY2020, we prepared a video in celebration of the 30th anniversary of our Haseko Value Enhancement initiatives to look back on the history of the efforts and provide an overview of future prospects including DX.
In and after fiscal 2021, we have made further progress on digitizing analog data at construction sites and promoted activities for shifting the process itself to digital. In addition, we newly established the BCP Subcommittee to address matters such as natural disasters while the existing CSR Subcommittee actively promotes initiatives such as environmental conservation, SDGs, and decarbonization.

Organizational framework of Haseko Value Enhancement Committee
As of April 1, 2025

Engagement with foreign workers from partner companies Global Workers Meeting

The number of foreign workers from partner companies working at construction sites of the Haseko Group is increasing year by year. Based on this situation, HASEKO Corporation holds Global Workers Meetings with an aim to establish engagement with foreign workers and to create a working environment easy for foreign workers to work in. They are led by the Workstyle Reform Subcommittee under the Value Enhancement Activities Committee, which consists of main cooperating companies.
Specifically, the Workstyle Reform Subcommittee members and HASEKO Corporation employees participate and identify the work-related and other problems of foreign workers working on Haseko sites and work to resolve and improve them. The Meetings are also used as opportunities to improve skills through various kinds of information provided by HASEKO Corporation and to deepen solidarity in the workplace through interaction between foreign workers.

The atmosphere of the Global Workers Meeting

Hosting opinion exchange dialogues of female technicians

Haseko Corporation is holding opinion exchange dialogues between female technicians from work places and the staff (members of the Value Enhancement Committee and the Workstyle Reform Subcommittee) on a regular basis.
The dialogue, under the theme of “honest opinions about worksites from women’s point of view,” is held in a roundtable-style to exchange views in a positive manner and invite requests regarding worksite facilities and equipment and worries and difficulties specific to women, among others. Based on the valuable views presented at each dialogue, we hold consultations with relevant divisions, implement improvements, and apply it to other sections, and work towards the betterment of the work environment.

Promoting DX at construction sites

Through proactive ICT technological initiatives and working in close collaboration with cooperating companies, Haseko Corporation aims to raise productivity and achieve labor savings for itself as well as its cooperating companies.
RFID tags are used in installation tests. In a ball-passing test system using RFID for drainpipes, the time of an RFID-tagged ball’s insertion and retrieval are recorded using a reader, and the logged duration is saved to the cloud. By pulling the data into reports in this manner, we have achieved reductions in the amount of labor spent on testing and reporting.
In addition, since April 2021, we have deployed the DandALL system for scheduling delivery and uploading of equipment and materials as well as the SPIDERPLUS system for sharing drawings across all sites. Information that could only be accessed by returning to the office can now be checked using devices such as smartphones and iPads. By significantly reducing the amount of time required for transportation and sharing the same set of information with our staff and employees of cooperating companies, we have reduced the amount of rework.
We are currently verifying the reductions in labor and efficiency gains at sites that have fully adopted the BIM* and DX models.

  • BIM: Building Information Modeling. BIM is a design method in which a 3D model of a building is built using computers.
Installation testing using RFID tags
Installation testing using RFID tags
Using SPIDERPLUS to point out issues immediately at the point of inspection
Using SPIDERPLUS to point out issues immediately at the point of inspection

Promoting the introduction of Construction Career Up System to pass on the skills within the construction industry

The Construction Career Up System is a private-public scheme developed by the Ministry of Land, Infrastructure, Transport and Tourism, the Japan Federation of Construction Contractors, the Associated General Contractors of Japan, the Federation of Specialized Construction Contractors, and the National Federation of Construction Workers’ Union, among others. Haseko Corporation regards this system as an epoch-making infrastructure that improves the treatment of on-site technicians and allows them to envision future career paths, and is therefore actively promoting its introduction.
The system issues each technician a chip card (Construction Career Up Card) on which his/her employment history and other information can be stored following an industry-wide uniform rule, with the aim of creating a mechanism in which technicians are evaluated in a fair and appropriate manner.
Haseko Corporation introduced the system in April 2019 and has achieved a 100% registration rate among our work sites in August of the same year. In FY2024, we achieved nearly all items of the targeted goal set by the Japan Federation of Construction Contractors. We will continue working to achieve 100% rates in both company and technician registrations within FY2025.

Declaration of Partnership Building

Having joined the Declaration of Partnership Building initiative established by Japan’s Cabinet Office, we will strive for co-existence and co-prosperity with business partners while working to increase added value across the entire value chain.

Related Information