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Tokyo Gas supplies natural gas to customers throughout Japan. Tokyo Gas has developed clear guidelines for earthquake preparedness in key phases – prevention policies, emergency policies, and restoration policies.

Specifically, prevention policies include the installation of polyethylene gas pipes which have high flexibility. Tokyo Gas is prepared for the possibility
of a major earthquake, and has adopted various measures to protect the safety
of customers and their communities. Secondary disasters can be prevented
through the activation of pre-installed safety devices, and the activation of
disaster management systems that can remotely control the gas supply to an
entire area. They have also established a framework for minimizing any
inconvenience to customers by dividing segmented pipe network into blocks.