Wako City (Mayor: Mitsuko Shibasaki) and Tokyo Gas Co., Ltd. (President: Shinichi Sasayama) have signed a comprehensive partnership agreement (hereinafter referred to as "this agreement") for carbon-neutral urban development. In March 2025, Wako City announced the "Wako City Zero Carbon City Declaration," aiming to achieve net-zero carbon dioxide emissions by 2050, and is working toward realizing a carbon-neutral society.

This agreement will further promote these efforts, contributing to the creation of a carbon-neutral city, and will also promote further development of the region by resolving local issues and creating more appeal, leading to the realization of sustainable urban development.

Cooperation matters

Matters concerning the total coordination of efforts toward carbon-neutral urban development

Matters concerning the procurement of low-carbon energy and its supply to public facilities

Matters concerning the optimization of energy use through the use of energy data, etc.

Matters related to strengthening regional resilience

Matters related to creating new value from a local perspective

Matters concerning environmental and energy education and awareness-raising activities through food education in schools, etc.

Matters concerning strengthening support for specialist human resources in efforts to create a carbon-neutral city

Matters related to creating new value and disseminating information about the appeal of carbon-neutral urban development

Matters related to promoting carbon neutrality within the city in cooperation with local businesses and promoting local businesses

Other matters related to improving services for residents and creating a carbon-neutral city

Date of conclusion

February 5, 2026

Comments from stakeholders

Comment from Wako Mayor Mitsuko Shibasaki

In March 2025, Wako City announced the "Wako City Zero Carbon City Declaration," aiming to achieve virtually zero carbon dioxide emissions by 2050, and is working toward realizing a decarbonized society.

We are extremely encouraged by the signing of this agreement, which will enable us to utilize Tokyo Gas's expertise in carbon neutrality and implement initiatives based on close collaboration. Achieving

carbon-neutral urban development requires a trinity of collaboration between citizens, businesses, and the government. Taking advantage of Tokyo Gas's extensive expertise, we will consider various initiatives toward creating a "carbon-neutral city," such as introducing and promoting renewable energy and implementing environmentally conscious energy education within the city.

Comment from Masako Konishi, Managing Executive Officer and Head of Regional Co-Creation Company, Tokyo Gas Co., Ltd.

Our Group Management Vision, "Compass 2030," includes the goals of "Building an Ecosystem for Value Co-creation *1 " and "Taking on the Challenge of Net-Zero CO2 Emissions." Our Regional Co-Creation Company is working with many companies and local governments to realize a carbon-neutral society through solutions provided under "IGNITURE*2." We are delighted that this agreement will enable mutual cooperation between Wako City, its residents, and businesses, leveraging the trust and community-based strength our Group has cultivated since its founding to collaborate toward the realization of carbon-neutral urban development. We have

previously deepened our collaboration with Wako City through the provision of carbon-neutral information and participation in environmental, energy-saving, and disaster prevention events. We will continue to work together to resolve local issues and promote sustainable urban development through value co-creation with Wako City.

The Tokyo Gas Group celebrated its 140th anniversary. We will continue to take on challenges beyond Tokyo and beyond gas, as a company that anticipates the future.

Tokyo Gas launched the solutions business brand "IGNITURE" on November 30, 2023, in preparation for the "full-scale rollout of solutions." The solutions developed under "IGNITURE" will enable households, corporations, and regional and community customers to comfortably balance "an even more prosperous future through improved economy, convenience, and efficiency through optimization" with "sustainable lifestyles and businesses through decarbonization and improved resilience."