Editorial Policy / GRI Standards Content Index

Editorial Policy

This website is created to communicate the Haseko Group’s efforts towards sustainability to stakeholders in an easy-to-understand manner. We are committed to comprehensively posting information regarding our Group’s sustainability, including policies, systems, contents of the activities, and numerical data, as well as enriching the disclosed information.

Information Disclosure Framework

Target period

Activities in FY2025 (April 1, 2025–March 31, 2026)

  • Some information from outside the reporting period is also included.

Target organizations

The page covers activities conducted by Haseko Corporation and its 101 subsidiaries and 20 affiliate companies. (As of August 2026)
On this website, “the Company” refers to Haseko Corporation, and “the Group” refers to the Haseko Group.

Referenced guidelines

  • GRI: Sustainability Reporting Standards
  • Ministry of the Environment: Environmental Reporting Guidelines 2018
  • Ministry of the Environment: Environmental Accounting Guidelines 2005
  • Japan Federation of Construction Contractors: Environmental Accounting Guidelines for Construction Industry 2002

GRI Standards Content Index

We referred to the Global Reporting Initiative (GRI) Standards in the creation of the Sustainability Report.

No. Indicators Page Listed
General Disclosures
GRI2: General Disclosures 2021
1. The organization and its reporting practices
2-1 Organizational details About HASEKO > Corporate Profile
2-2 Entities included in the organization's sustainability reporting Sustainability > Philosophy and Policies
Haseko Corporation > About HASEKO > Group Companies
Investor Relations > IR Library > Annual Securities Report pp. 6-9 (Japanese Only)
2-3 Reporting period, frequency and contact point Sustainability > Editorial Policy / GRI Standards Content Index
2-4 Restatements of information N/A
2-5 External assurance Sustainability > ESG Data
2. Activities and workers
2-6 Activities, value chain and other business relationships Our Business Fields > Businesses Conducted by the Haseko Group
Integrated Report pp. 17-18
Sustainability > ESG Information > Supply Chain Management
2-7 Employees Sustainability > ESG Data
Investor Relations > IR Library > Annual Securities Report p. 92 (Japanese Only)
2-8 Workers who are not employees Sustainability > ESG Data
Investor Relations > IR Library > Annual Securities Report p. 92 (Japanese Only)
3. Governance
2-9 Governance structure and composition About HASEKO > Corporate Governance
Sustainability > ESG Information > Corporate Governance
2-10 Nomination and selection of the highest governance body About HASEKO > Corporate Governance
Sustainability > ESG Information > Corporate Governance
Corporate Governance Report p. 7 (Japanese Only)
2-11 Chair of the highest governance body About HASEKO > Corporate Governance
Corporate Governance Report p. 5 (Japanese Only)
2-12 Role of the highest governance body in overseeing the management of impacts Sustainability > Message from the Officer in Charge of Sustainability Promotion
Sustainability > Our Approach to Sustainability
2-13 Delegation of responsibility for managing impacts Sustainability > Our Approach to Sustainability
2-14 Role of the highest governance body in sustainability reporting Sustainability > Our Approach to Sustainability
2-15 Conflicts of interest Sustainability > ESG Information > Corporate Governance
Annual Securities Report pp. 89-91 (Japanese Only)
Corporate Governance Report p. 4 (Japanese Only)
Basic Policies on Corporate Governance pp. 5-6
2-16 Communication of critical concerns Sustainability > ESG Information > Compliance / Risk Management
2-17 Collective knowledge of the highest governance body Sustainability > ESG Information > Corporate Governance
Basic Policies on Corporate Governance p. 2
2-18 Evaluation of the performance of the highest governance body Sustainability > ESG Information > Corporate Governance
Integrated Report p. 72
2-19 Remuneration policies Sustainability > ESG Information > Corporate Governance
Integrated Report pp. 70-71
2-20 Process to determine remuneration Sustainability > ESG Information > Corporate Governance
Integrated Report pp. 70-71
Corporate Governance Report pp. 10-12 (Japanese Only)
2-21 Annual total compensation ratio Sustainability > ESG Information > Corporate Governance
4. Strategy, policies and practices
2-22 Statement on sustainable development strategy About HASEKO > Message from the Management
Sustainability > Message from the Officer in Charge of Sustainability Promotion
Integrated Report pp. 3-8
2-23 Policy commitments Sustainability > ESG Information > Respect for Human Rights
Sustainability > Philosophy and Policies
2-24 Embedding policy commitments Sustainability > Message from the Officer in Charge of Sustainability Promotion
Sustainability > ESG Information > Environmental Policy / Management System
Sustainability > ESG Information > Human Capital / Human Resources Development
Sustainability > ESG Information > Diversity & Inclusion / Labor Environment
Sustainability > ESG Information > Occupational Safety and Health / Health and Productivity Management
Sustainability > ESG Information > Respect for Human Rights
2-25 Processes to remediate negative impacts Sustainability > ESG Information > Respect for Human Rights
2-26 Mechanisms for seeking advice and raising concerns Sustainability > ESG Information > Respect for Human Rights
Sustainability > ESG Information > Compliance / Risk Management
2-27 Compliance with laws and regulations Sustainability > ESG Information > Environmental Policy / Management System
Sustainability > ESG Information > Compliance / Risk Management
Investor Relations > Management Policy and Strategy > Risk Factors
2-28 Membership associations About HASEKO > Corporate Profile
Sustainability > External Evaluations and Awards
5. Stakeholder engagement
2-29 Approach to stakeholder engagement Sustainability > ESG Information > Dialogue with Stakeholders
2-30 Collective bargaining agreements -
GRI 3: Material Topics 2021
3-1 Process to determine material topics Sustainability > Our Approach to Sustainability
3-2 List of material topics Sustainability > Our Approach to Sustainability
3-3 Management of material topics Sustainability > Our Approach to Sustainability
Sustainability > Message from the Officer in Charge of Sustainability Promotion
Economy
GRI 201: Economic Performance 2016
Topic management disclosures -
201-1 Direct economic value generated and distributed Investor Relations > Business Performance and Financial Information > Consolidated Statements
Integrated Report pp. 77-80
Annual Securities Report pp. 2-3 (Japanese Only)
201-2 Financial implications and other risks and opportunities due to climate change Sustainability > ESG Information > Disclosure Based on the TCFD Recommendations
Investor Relations > Management Policy and Strategy > Risk Factors
201-3 Defined benefit plan obligations and other retirement plans Annual Securities Report pp. 131-132 (Japanese Only)
201-4 Financial assistance received from government -
GRI 202: Market Presence 2016
Topic management disclosures -
202-1 Ratios of standard entry level wage by gender compared to local minimum wage -
202-2 Proportion of senior management hired from the local community -
GRI 203: Indirect Economic Impacts 2016
Topic management disclosures -
203-1 Infrastructure investments and services supported Sustainability > ESG Information > New Value Creation
Sustainability > ESG Information > Community
Sustainability > ESG Information > Climate Change
203-2 Significant indirect economic impacts Sustainability > ESG Data
GRI 204: Procurement Practices 2016
Topic management disclosures -
204-1 Proportion of spending on local suppliers -
GRI 205: Anti-corruption 2016
Topic management disclosures -
205-1 Operations assessed for risks related to corruption -
205-2 Communication and training about anti-corruption policies and procedures Sustainability > ESG Information > Compliance / Risk Management
205-3 Confirmed incidents of corruption and actions taken Sustainability > ESG Information > Compliance / Risk Management
GRI 206: Anti-competitive Behavior 2016
Topic management disclosures -
206-1 Legal actions for anti-competitive behavior, anti-trust, and monopoly practices IR Information > Management Policy and Strategy > Risk Factors
GRI 207: Tax 2019
Topic management disclosures Haseko Group Tax Policy
207-1 Approach to tax Haseko Group Tax Policy
207-2 Tax governance, control, and risk management Haseko Group Tax Policy
207-3 Stakeholder engagement and management of concerns related to tax Haseko Group Tax Policy
207-4 Country-by-country reporting -
Environment
GRI 301: Materials 2016
Topic management disclosures Sustainability > ESG Information > Environmental Policy / Management System
301-1 Materials used by weight or volume Sustainability > ESG Data
301-2 Recycled input materials used Sustainability > ESG Data
301-3 Reclaimed products and their packaging materials Sustainability > ESG Information > Resource Circularity / Pollution Prevention
Sustainability > ESG Data
GRI 302: Energy 2016
Topic management disclosures Sustainability > ESG Information > Environmental Policy / Management System
302-1 Energy consumption within the organization Sustainability > ESG Data
302-2 Energy consumption outside of the organization -
302-3 Energy intensity -
302-4 Reduction of energy consumption Sustainability > ESG Data
302-5 Reductions in energy requirements of products and services Sustainability > ESG Information > Climate Change
Sustainability > ESG Information > Research and Technology Development
GRI 303: Water and Effluents 2018
Topic management disclosures Sustainability > ESG Information > Environmental Policy / Management System
303-1 Interactions with water as a shared resource Sustainability > ESG Information > Resource Circularity / Pollution Prevention
303-2 Management of water discharge-related impacts Sustainability > ESG Information > Resource Circularity / Pollution Prevention
303-3 Water withdrawal Sustainability > ESG Data
Sustainability > ESG Information > Resource Circularity / Pollution Prevention
303-4 Water discharge Sustainability > ESG Data
Sustainability > ESG Information > Resource Circularity / Pollution Prevention
303-5 Water consumption -
GRI 304: Biodiversity 2016
Topic management disclosures Sustainability > ESG Information > Environmental Policy / Management System
Sustainability > ESG Information > Biodiversity
Sustainability > ESG Information > Disclosures Based on the Recommendations of the TNFD
304-1 Operational sites owned, leased, managed in, or adjacent to, protected areas and areas of high biodiversity value outside protected areas -
304-2 Significant impacts of activities, products, and services on biodiversity Sustainability > ESG Information > Disclosures Based on the Recommendations of the TNFD
304-3 Habitats protected or restored Sustainability > ESG Information > Biodiversity
304-4 IUCN Red List species and national conservation list species with habitats in areas affected by operations -
GRI 305: Emissions 2016
Topic management disclosures Sustainability > ESG Information > Environmental Policy / Management System
Sustainability > ESG Information > Climate Change
Sustainability > ESG Information > Disclosures Based on the Recommendations of the TCFD
305-1 Direct (Scope 1) GHG emissions Sustainability > ESG Data
Sustainability > ESG Information > Climate Change
305-2 Energy indirect (Scope 2) GHG emissions Sustainability > ESG Data
Sustainability > ESG Information > Climate Change
305-3 Other indirect (Scope 3) GHG emissions Sustainability > ESG Data
Sustainability > ESG Information > Climate Change
305-4 GHG emissions intensity -
305-5 Reduction of GHG emissions Sustainability > ESG Information > Climate Change
305-6 Emissions of ozone-depleting substances (ODS) Sustainability > ESG Data
305-7 Nitrogen oxides (NOx), sulfur oxides (SOx), and other significant air emissions Sustainability > ESG Data
GRI 306: Waste 2020
Topic management disclosures Sustainability > ESG Information > Environmental Policy / Management System
Sustainability > ESG Information > Resource Circularity / Pollution Prevention
306-1 Waste generation and significant waste-related impacts Sustainability > ESG Information > Resource Circularity / Pollution Prevention
306-2 Management of significant waste-related impacts Sustainability > ESG Information > Resource Circularity / Pollution Prevention
306-3 Waste generated Sustainability > ESG Information > Resource Circularity / Pollution Prevention
Sustainability > ESG Data
306-4 Waste diverted from disposal Sustainability > ESG Information > Resource Circularity / Pollution Prevention
Sustainability > ESG Data
306-5 Waste directed to disposal Sustainability > ESG Information > Resource Circularity / Pollution Prevention
Sustainability > ESG Data
GRI 308: Supplier Environmental Assessment 2016
Topic management disclosures Sustainability > ESG Information > Supply Chain Management
308-1 New suppliers that were screened using environmental criteria Sustainability > ESG Information > Supply Chain Management
308-2 Negative environmental impacts in the supply chain and actions taken Sustainability > ESG Information > Disclosures based on the Recommendations of the TNFD
Social
GRI 401: Employment 2016
Topic management disclosures Sustainability > ESG Information > Human Capital / Human Resources Development
Sustainability > ESG Information > Diversity & Inclusion / Labor Environment
401-1 New employee hires and employee turnover Sustainability > ESG Information > Human Capital / Human Resources Development
Sustainability > ESG Data
401-2 Benefits provided to full-time employees that are not provided to temporary or part-time employees -
401-3 Parental leave Sustainability > ESG Information > Diversity & Inclusion / Labor Environment
Sustainability > ESG Data
GRI 402: Labor/Management Relations 2016
Topic management disclosures Sustainability > ESG Information > Human Capital / Human Resources Development
402-1 Minimum notice periods regarding operational changes -
GRI 403: Occupational Health and Safety 2018
Topic management disclosures Sustainability > ESG Information > Occupational Safety and Health / Health and Productivity Management
403-1 Occupational health and safety management system Sustainability > ESG Information > Occupational Safety and Health / Health and Productivity Management
403-2 Hazard identification, risk assessment, and incident investigation Sustainability > ESG Information > Occupational Safety and Health / Health and Productivity Management
403-3 Occupational health services Sustainability > ESG Information > Occupational Safety and Health / Health and Productivity Management
403-4 Worker participation, consultation, and communication on occupational health and safety Sustainability > ESG Information > Occupational Safety and Health / Health and Productivity Management
403-5 Worker training on occupational health and safety Sustainability > ESG Information > Occupational Safety and Health / Health and Productivity Management
403-6 Promotion of worker health Sustainability > ESG Information > Occupational Safety and Health / Health and Productivity Management
403-7 Prevention and mitigation of occupational health and safety impacts directly linked by business relationships Sustainability > ESG Information > Occupational Safety and Health / Health and Productivity Management
403-8 Workers covered by an occupational health and safety management system -
403-9 Work-related injuries Sustainability > ESG Information > Occupational Safety and Health / Health and Productivity Management
Sustainability > ESG Data
403-10 Work-related ill health Sustainability > ESG Information > Occupational Safety and Health / Health and Productivity Management
GRI 404: Training and Education 2016
Topic management disclosures Sustainability > ESG Information > Human Capital / Human Resources Development
404-1 Average hours of training per year per employee Sustainability > ESG Data
404-2 Programs for upgrading employee skills and transition assistance programs Sustainability > ESG Information > Human Capital / Human Resources Development
404-3 Percentage of employees receiving regular performance and career development reviews -
GRI 405: Diversity and Equal Opportunity 2016
Topic management disclosures Sustainability > ESG Information > Diversity & Inclusion / Labor Environment
405-1 Diversity of governance bodies and employees Sustainability > ESG Information > Diversity & Inclusion / Labor Environment
Sustainability > ESG Data
405-2 Ratio of basic salary and remuneration of women to men Sustainability > ESG Data
Annual Securities Report pp. 92-94 (Japanese Only)
GRI 406: Non-discrimination 2016
Topic management disclosures Sustainability > ESG Information > Respect for Human Rights
406-1 Incidents of discrimination and corrective actions taken -
GRI 407: Freedom of Association and Collective Bargaining 2016
Topic management disclosures Haseko Group Sustainable Procurement Guidelines (Poster)
407-1 Operations and suppliers in which the right to freedom of association and collective bargaining may be at risk Haseko Group Sustainable Procurement Guideline (Poster)
GRI 408: Child Labor 2016
Topic management disclosures Sustainability > ESG Information > Respect for Human Rights
408-1 Operations and suppliers at significant risk for incidents of child labor Haseko Group Sustainable Procurement Guidelines (Poster)
Sustainability > ESG Information > Respect for Human Rights
GRI 409: Forced or Compulsory Labor 2016
Topic management disclosures Sustainability > ESG Information > Respect for Human Rights
409-1 Operations and suppliers at significant risk for incidents of forced or compulsory labor Haseko Group Sustainable Procurement Guideline (Poster)
Sustainability > ESG Information > Respect for Human Rights
GRI 410: Security Practices 2016
Topic management disclosures -
410-1 Security personnel trained in human rights policies or procedures -
GRI 411: Rights of Indigenous Peoples 2016
Topic management disclosures -
411-1 Incidents of violations involving rights of indigenous peoples -
GRI 413: Local Communities 2016
Topic management disclosures -
413-1 Operations with local community engagement, impact assessments, and development programs Sustainability > ESG Information > Community
413-2 Operations with significant actual and potential negative impacts on local communities -
GR 414: Supplier Social Assessment 2016
Topic management disclosures Sustainability > ESG Information > Supply Chain Management
414-1 New suppliers that were screened using social criteria Haseko Group Sustainable Procurement Guidelines (Poster)
414-2 Negative social impacts in the supply chain and actions taken -
GRI 415: Public Policy 2016
Topic management disclosures -
415-1 Political contributions -
GRI 416: Customer Health and Safety 2016
Topic management disclosures Sustainability > ESG Information > Enhancing Safety and Quality in Buildings and Services
416-1 Assessment of the health and safety impacts of product and service categories Sustainability > ESG Information > Enhancing Safety and Quality in Buildings and Services
416-2 Incidents of non-compliance concerning the health and safety impacts of products and services -
GRI 417: Marketing and Labeling 2016
Topic management disclosures Sustainability > ESG Information > Compliance / Risk Management
417-1 Requirements for product and service information and labeling Sustainability > ESG Information > Compliance / Risk Management
417-2 Incidents of non-compliance concerning product and service information and labeling -
417-3 Incidents of non-compliance concerning marketing communications -
GRI 418: Customer Privacy 2016
Topic management disclosures Sustainability > ESG Information > Compliance / Risk Management
418-1 Substantiated complaints concerning breaches of customer privacy and losses of customer data -