Initiatives for ESG

Management of Environmental Preservation

Toho Gas Group established the environmental management system by setting its Environmental Action Principles and Environmental Action Guidelines, to help the realization of an environmentally harmonious society. We set environmental action goals for the Group and conduct various activities to achieve the goals.

Environmental Action Principles

The Environmental Action Principles (established in 1993; final revision in 2011) are regarded at Toho Gas's business policy.

Basic Policy Toho Gas and its Group companies recognize the importance of preserving the environment on regional and global basis. By giving priority to supplying clean energy, the Group will do its utmost to create an environmentally harmonious society through all its business activities.
Principles Principle 1 The Group will contribute to reducing the impacts of its business activities on the environment related to customers.
Principle 2 The Group will reduce the impacts of its business activities on the overall environment.
Principle 3 The Group will contribute to environmental preservation in collaboration with local communities and the global community.
Principle 4 The Group will step up research and development regarding environmental preservation technologies.

Environmental Action Guidelines

Our Environmental Action Guidelines (established in 2011) set out the concept and content of key environmental activities that the Group is engaged in.

Global Warming Countermeasures
  • The Group will reduce customer CO2 emissions and promote effective and realistic global warming countermeasures through the expansion, highly-efficient use, and high-degree application of clean energy sources, such as environmentally-friendly natural gas, and the utilization of renewable energy.
  • The Group will work to reduce CO2 emissions in its business activities through continuous improvement of its operational activities.
Resource Recycling
  • The Group will promote the effective use of resources in each stage of business activities and reduce, reuse and recycle waste to minimize external emissions.
Biodiversity Conservation
  • The Group recognizes the importance of biodiversity and will work to grasp and analyze the impact of business activities on biodiversity as well as promoting biodiversity-friendly activities.
Environmental Social Contribution
  • The Group will conduct environment-related social contribution activities by participating in environmental activities/projects in collaboration with local communities and the global community.
Technology Development
  • The Group will promote technology development that contributes to reducing our environmental impact, such as the highly-efficient and high-degree application of city gas/LPG gas.
Environmental Management
  • Recognizing the impact of its business activities on the overall environment, the Group will rigorously enforce environmental management, and develop human resources who are environmentally conscious and can act on their own initiative.

Organizational Structure for Management of Environmental Preservation

We have set up the Group Environmental Preservation Board, consisting of Toho Gas and its major subsidiaries. The committee aims to reduce impacts of Group activities on the environment and promote the Group's compliance with laws and regulations related to environmental preservation. Specifically, the committee is designed to formulate the Group's basic policy on environmental preservation activities while setting goals regarding such activities. It is also intended to discuss and study measures aimed at achieving these goals, and manage implementation of the measures. Regarding environmental action goals in particular, we have established an Environmental Promotion Meeting in each department to verify progress and realization planning in conjunction with the Group Environmental Preservation Board.
We deploy staff to handle environmental affairs at each department of Toho Gas and its subsidiaries. "Environmental promoters" are tasked with undertaking specific environmental activities. "Environmental auditors" are in charge of reviewing what has been achieved through environmental preservation activities and checking if these activities are consistent with relevant regulations. "Environmental controllers" are assigned to control the activities of the "environmental promoters" and "environmental auditors." The deployment of these environmental experts is meant to get the PDCA cycle (plan, do, check, act) running smoothly.

Organizational Structure for Management of Environmental Preservation

Organizational Structure for Management of Environmental Preservation

Environmental Action Goals

The environmental action goals are formulated seamlessly in conjunction with the Medium-term Management Plan and efforts to reach them are promoted.
In FY2020, the second year of the period of the environmental action goals (FY2019 - FY2021), we made favorable progress in the goal areas, as shown in the table below.
Toho Gas announcedthe Toho Gas Group 2050 Carbon Neutrality Initiative in July 2021, and has formulated medium- and long-term goals through 2030 and 2050 oriented toward achieving carbon neutrality.

Type Goal item
Goal value FY2020 results Main initiatives for achieving goals; related pages
CO2 reduction target related to customers 600 thousand tonnes-CO2 (3-year cumulative total) 360 thousand tonnes-CO2※1
CO2 emissions reduction in business activities CO2 emission intensity of city gas plants 11.5 tonnes-CO2/million Nm3 or less (gas sales volume) 9.3 tonnes-CO2/million Nm3*2
CO2 emission intensity of the Energy Center 75.1 tonnes-CO2/thousand GJ or less (heat and electricity sales volume) 75.3 tonnes-CO2/thousand GJ*2
CO2 emission intensity of offices 79.8 tonnes-CO2/thousand m2 or less
(total floor area)
73.8 tonnes-CO2/thousand m2 *2
Initiatives to reduce CO2 emissions in the electricity business
Zero emissions at city gas plants Continuation (1% or lower final disposal rate) Continuation (0.31% final disposal rate)2
Recycling of waste generated after gas pipeline construction Recycling rate of 99% or more Recycling rate of 99.5%2
Reduction in use of natural mountain sand and detritus in gas pipeline construction compared with use under conventional engineering methods 15% or lower 10.8%2
Recycling of general waste Recycling rate of 80% or more Recycling rate of 80.6%2
Promoting "3R" (reduce, reuse, and recycle) through green procurement and the recycling of used gas equipment
Promoting biodiversity conservation through business activities, etc.
Promoting technology development for reducing CO2 emissions and improving efficiency
Promoting initiatives such as environment social contribution activities and environmental education for the next generation in collaboration with local communities
  1. Period cumulative value of FY2019 - FY2021
  2. Average of FY2019 - FY2021
  3. FY2020 value
  1. Unspecified values are average values of FY2019 - FY2021.
  2. The CO2 emissions factor for purchased electricity is pegged at 0.474 kg-CO2/kWh (Chubu Electric Power), a figure recorded in the base year (FY2009).
  3. The effects of efforts to reduce CO2 emissions through private power generation are calculated using the CO2 emissions factor (the emission factor for thermal power source) for marginal power source in the base year (FY2009) of 0.69 kg-CO2/kWh.

The results for respective goal items are posted on the following pages.

Environmental Action Goals (FY2022 through FY2025)

In March 2022, Toho Gas set new environmental action goals (FY2022 through FY2025).

Type Goal item FY2025 goal value
Reduction of Environmental Impact Global Warming Countermeasures Amount of contribution to CO2 reduction -1 million tons compared to FY2020
Handled amount of renewable energy power sources Cumulative total: 250,000 kW
Reduction of CO2 emission intensity in business activities -2% CO2 emission intensity/year
Resource Recycling Zero emissions of industrial waste at city gas plants 1% or lower final disposal rate
Recycling of waste generated after gas pipeline construction Recycling rate of 99% or more
Promoting "3R" (reduce, reuse, and recycle) through business activities
Biodiversity Conservation Habitat conservation through reduction in use of natural mountain sand and detritus in gas pipeline construction 15% or lower compared with use under conventional engineering methods
Sustenance and recovery of biodiversity through business activities and regional contribution activities, satoyama and forest conservation, and contribution to protection of local species
Environment Social Contribution Environment social contribution activities in collaboration with local communities, and contribution to resolution of regional and social issues
Technology Development Advanced use of energy and promotion of technical development for achieving carbon neutrality

Environmental Management System (EMS) Certification

The Toho Gas Group is working proactively to acquire EMS certification to enhance its environmental management. We have obtained the ISO 14001 certification* at all city gas plants. Some subsidiaries have obtained Eco Action 21 certification from Japan's Ministry of the Environment. In addition, Toho Gas and subsidiaries we have also gained environmental certification from local authorities, such as Ecological Enterprise Certification from the City of Nagoya.

Types Certified companies (offices)
ISO14001 Toho Gas (Chita-Midorihama Works, Chita LNG Terminal, Chita Calorific Value Adjustment Center, Yokkaichi Works)
Eco Action 21 Toho Real Estate Co., Ltd., Toho Gas Engineering Co., Ltd.
Certification programs of municipalities Toho Gas (headquarters, Minato AQULS Energy Center, etc.), Toho Real Estate Co., Ltd. (Building Business Unit Imaike Gas Building, etc.), Toho Liquefied Gas Co., Ltd. (Nagoya Sales Office, etc.), Toho Gas Techno Co., Ltd. (Headquarters Office, etc.), Toho Gas Engineering Co., Ltd.

Compliance with Environmental Laws and Regulations

The main environmental laws and regulations related to the Group are described below. In FY2020, we continued to respond to them appropriately, and experienced no accidents having a serious environmental impact, or any legal violations or penalties. We will continue to conduct education concerning environmental laws and regulations and self environmental audits to ensure compliance.

Classification Main environmental laws and regulations
General Basic Environment Act
Global Warming Countermeasures Act on the Rational Use of Energy, Building Energy Efficiency Act, Act on Promotion of Global Warming Countermeasures, Act on Rational Use and Proper Management of Fluorocarbons, Act on the Protection of the Ozone Layer
Resource Recycling Basic Act on Establishing a Sound Material-Cycle Society, Waste Management and Public Cleansing Act, PCB Special Measures, Act on the Promotion of Effective Utilization of Resources, Construction Material Recycling Act, Electrical Appliance Recycling Act, Containers and Packaging Recycling Act, Food Recycling Act, Small Electrical Appliance Recycling Act, Act on Recycling, etc. of End-of-Life Vehicles
Pollution Prevention Air Pollution Control Act, Water Pollution Prevention Act, Noise Regulation Act, Vibration Regulation Act, Soil Contamination Countermeasures Act, Mercury Pollution Control Act, Law concerning Pollutant Release and Transfer Register (PRTR), Act on the Evaluation of Chemical Substances and Regulation of Their Manufacture, etc., Offensive Odor Control Act, Land Subsidence-related Law

Environmental Education

Toho Gas Group provides environmental education by target employees. Even during the COVID-19 pandemic, we used video teleconferencing systems and remote conferencing tools to hold environmental seminars on topics such as environmental policies and social trends for senior management. We also annually conduct environmental law training seminars and e-learning courses tailored to different levels of managers and employees to raise awareness and knowledge of environmental laws and regulations and to bolster our response capabilities. In FY2020, to deepen awareness of environmental laws and regulations and of the importance of correct disposal of industrial waste among senior management and managers, we held an environmental compliance lecture meeting by an invited lecturer specializing in environmental laws and regulations.

Name Target
Environmental training seminars Senior management
Environmental compliance lecture meeting Senior management and managers
Environmental law training seminar Managers and employees
New employee training New employees
Environmental law training seminar
Environmental law training seminar held during
the COVID-19 pandemic by using a remote

Self Environmental Audits

Toho Gas Group has conducted self environmental audits since FY1994. We conduct annual audits at workplaces of Toho Gas and subsidiaries whose operations relate to environmental laws and regulations. We use a duplicate audit system of primary audits at workplaces of Toho Gas and its subsidiaries that are related to environmental laws and regulations, and secondary audits at each department and company.

Implementation of self environmental audits

Implementation period Aug. 2020–Sep. 2020
Audit target Workplaces of Toho Gas and subsidiaries whose operations relate to environmental laws and regulations
Environmental auditors Persons appointed at each department or subsidiaries
Classification Points checked at time of audit
Waste Management and Public Cleansing Act Utilization of preliminary checksheets prior on the outsourced disposal of industrial waste, appropriate operation of temporary storage areas, etc., accommodation of mercury-containing waste regulations, manifest delivery and storage, regular reporting, etc.
Act on Rational Use and
Proper Management of Fluorocarbons
State of storage of GHP and other regulated containers under the Act on Rational Use and Proper Management of Fluorocarbons
Other environmental laws and regulations Accommodation of the Water Pollution Prevention Act in the event of oil-leakage accidents, status reporting and of compliance with regulation criteria with respect to the Air Pollution Control Act and legislation restricting noise and vibration

Provision of Environmental Data in Accordance with Regulations (Company position on Public Policy and Regulation)

The Toho Gas Group endorses the policies of Aichi Prefecture, the City of Nagoya, and other local governments that address climate change, conducts measures in accordance with regulations, and provides environmental data.

Major regulation Initiative
Global Warming Countermeasure
Promotion Ordinance
(Aichi Prefecture)
We conduct thoroughgoing energy operations management and investigate medium- and long-term energy-saving equipment, and submit written plans and implementation status reports. All items have acquired the exemplary and advanced "S" evaluation.
Ordinance Concerning Conservation,
Etc., of the Living Environment of
Prefectural Residents (Aichi Prefecture)
We promote the introduction of low-polluting vehicles, including natural gas vehicles, fuel cell vehicles, and the like, and submit reports on the status of introduction of low-polluting vehicles.
Overview Relating to Usage Restraints,
Etc., on Model-restricted Noncompliant
Cargo Automobiles, Etc.
(Aichi Prefecture, City of Nagoya)
For vehicles entering the premises of the Headquarters Office, we request usage of compliant vehicles, practicing eco-driving, and the like, and submit reports on measures, etc.