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Environmental Management

Environmental Management System (ISO14001) (Non-consolidated)

All MGC plants have obtained Environmental Management System registration (ISO14001).

  ISO14001 Registration Date
Plant Registered Registration Number (1996 version) (2015 version)
Niigata Plant 1162-1998-AE-KOB-RvA June 1998 November 2017
Mizushima Plant JCQA-E-0145 May 2000 May 2018
Yokkaichi Plant
Naniwa Plant
Saga Plant
JQA-EM0502 August 1998
(As the Yokkaichi Plant)
August 2017
Kashima Plant JQA-EM0345 February 1999 January 2018
Yamakita Plant JQA-EM0859 May 2000 May 2018

Production-related Input and Output (Non-consolidated MGC and Domestic MGC Group)

Primary production-related inputs and outputs for the non-consolidated MGC and domestic MGC Group in fiscal 2020 were as follows:

Production-related Input and Output (Non-consolidated and Domestic MGC Group)

Environmental Preservation Investments (Non-consolidated)

In fiscal 2015, MGC began undertaking environmental preservation investments.
These investments include investment items that, although they may be very effective in reducing environmental loads, may be less likely to be adopted due to long payback periods or for other reasons, as well as investment items that lead to preservation of biodiversity, recruited through proposals from the various MGC sites. A secretariat consisting of the Environment, Safety and Quality Assurance Division and the Production Technology Division at corporate headquarters then select the items to implement and secure the required budget, before executing the investment.

For example, by replacing mercury lamps and fluorescent lights with LED bulbs, it is possible to both save energy and reduce mercury-containing equipment. Replacing air conditioning equipment with energy-saving models has the dual effect of conserving energy and reducing CFCs (thus preventing destruction of the ozone layer). Further, replacing the equipment with air conditioners that do not use freon as a refrigerant can obtain the additional effect of reducing greenhouse gases.

In fiscal 2020, MGC replaced mercury lamps with LED bulbs in lighting used in its buildings and along roads on their premises, upgraded air conditioning equipment, upgraded freezing machines using fluorocarbon R-22 as refrigerant, and took other measures. These steps had the effect of reducing GHGs by about 288 t-CO2/year on a pro forma basis.
MGC is committed to continued investment in reducing environmental impact.

Environmental Accounting (Non-consolidated)

Through environmental accounting in accordance with guidelines by the Ministry of the Environment, MGC has quantitatively calculated and released the investment amount and costs of environmental preservation required for the business activities of non-consolidated, as well as the real economic benefits obtained.

  • Investment amount

    The total amount of investment related to environmental preservation activities in fiscal 2020 was approximately 1.3 billion yen. Major investments include fuel conversion at the Yokkaichi Plant and strengthening solvent recovery at the Kashima Plant.

  • Expenses

    Total expenses related to environmental conservation activities in fiscal 2020 were approximately 8.7 billion yen. Of these, the highest expense was about 2.7 billion yen for research and development, accounting for around 31% of the total.

  • Economic benefits

    The reduction of expenses through energy saving measures and the income from the sale of unneeded items generated in our business activities were recorded as real economic benefit.

Environmental Preservation Cost (Investments and Costs Classified According to Business Activity)

Breakdown Main areas of activity FY2019
(millions of yen)
FY2020
(millions of yen)
Investment Expenses Investment Expenses
Onsite cost Pollution prevention cost Air pollution prevention Emission control by fuel conversion, vent gas recovery 5.7 925.6 95.1 878.3
Water pollution prevention Upgrade of wastewater treatment facilities and measuring equipment 106.0 1,669.2 178.1 1,560.5
Soil, Noise Measures to prevention of soil infiltration and odor control 79.5 0.1 358.8 0.1
Global environmental preservation cost Upgrade of air conditioning equipment, replacement of mercury-vapor lamps and other lighting with LED fixtures 138.6 1,805.7 191.8 1,871.9
Resource recycling cost Recycling of waste 0.0 836.6 6.0 1,143.4
Up or down stream cost Collection and reuse of product containers 0.0 34.9 0.0 39.8
Management activity cost Greening of surrounding areas, environmental-related analysis, disclosure of environmental information 25.0 475.3 40.9 547.0
R&D cost Research and development of energy-saving technologies and eco-friendly products 336.8 2,716.1 442.0 2,747.6
Social contribution cost Membership dues of nature conservation organizations, donations of books 0.0 8.4 0.0 6.8
Environmental damage cost Pollution impacts levy 0.0 73.8 0.0 70.7
Total 691.5 8,545.7 1,307.7 8,866.0

Economic benefit

Title Item FY2019
(millions of yen)
FY2020
(millions of yen)
Income Profit on sale of valuable waste, etc. 44.7 47.8
Reduction of expenses Effects due to energy saving,
power savings from solar power generation
398.4 110.8
  • Compliance with the Ministry of the Environment's Environmental Accounting Guidelines 2005
  • Period:From April 1, 2020 to March 31, 2021
  • Scope:Non-consolidated
  • Methods:Investments were apportioned according to the ratio of the approved or enforced amount of capital expenditure to environmental preservation.
    Expenses were apportioned according to the ratio of expenses related to environmental preservation and include depreciation allowance.