Fundamental Policy on Sustainable Development
1. Fundamental Approach
We, Taisei Group, set this Fundamental Policy on Sustainable Development (this “Policy”) torealize Sustainability Transformation (SX), which aims to resolve sustainable development
issues through our businesses centered on the construction industry, and to contribute to thedevelopment of a resilient society where people can live affluent and cultural lives based on ourGroup Philosophy of “To create a vibrant environment for all members of society” and Taisei
Spirit (“Active and Transparent Culture” ”Value Creation” and ”Evolution of Tradition”) to pursue
the Group Philosophy.
We shall positively and proactively strive to solve sustainable development issues, recognizingthat will not only reduce the risks but also lead to new profit opportunities.
2. Establishment of Individual Policies
We shall establish policies in individual areas of sustainability development, such as theenvironment, human rights, and safety and health etc., as appropriate.
3. Identification of Material Issues
In accordance with this Policy and individual policies, sustainable development issues that areparticularly important shall be identified as material issues (to be dealt with). Material issues shalldeliberated by the Sustainability Committee and determined by the Board. The material issues
shall be reviewed and revised as necessary.
4. Reflection on Our Business Plan and Monitoring
Key measures, specific measures, and KPIs related to the material issues shall be reflectedon the Medium-Term Business Plan, and monitored their progress and degree of achievement
periodically at the Board.
5. Appointment of CSuO
In order to clarify the responsibility for our Group’s promotion of sustainable development, Chiefof Sustainability Division (Integrated) shall be appointed as Chief Sustainability Officer (CSuO).
6. Information Disclosure
Our measures, progress and KPIs on sustainable development issues shall be disclosed toour stakeholders in a timely and appropriate manner.

Among the sustainable development

issues, the impact of climate change risks and revenue opportunities on our Group's businessactivities and earnings etc., shall be disclosed in accordance with the TCFD (Task Force on
Climate-related Financial Disclosures) framework.
7. Department in Charge
This Policy shall be administered by Sustainablity Planning Department of Sustainability
Management Promotion Division.

June 2024

Yoshiro AIKAWA
Representative Director, President and Chief Executive Officer
Taisei Corporation
Revision history
November 1, 2021

Establishment

April 1, 2022

Partial Revision

April 1, 2023

Partial Revision

June 1, 2024

Partial Revision

System Diagram of Policies Related to Sustainable Development

Fundamental Policy on Sustainable Development

Individual Policies● Multi-Stakeholder Policy● Quality Policy● Health and Safety Policy● Environmental Policy● Declaration of Biodiversity Preservation by Taisei Group● Procurement Policy● Human Rights Policy● Digital Transformation (DX) Policy● Technology Development Policy● Human Resources Development Policy (Diversity, Equity& Inclusion Policy)
Note: The individual policies regarding corporate governance are notincluded in the policies in this diagram above.