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 (MGC non-consolidated and domestic MGC Group companies)

Primary production-related inputs and outputs for the non-consolidated MGC and domestic MGC Group in fiscal 2022 were as follows:

figure: Primary production-related inputs and outputs. It shows quantities of primary inputs or outputs of such as materials.

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 2022, MGC installed solar power generating facilities on the new R&D building, saved energy and reduced mercury usage by replacing mercury lamps with LEDs, and took other measures. These steps had the effect of reducing GHGs by about 118 t-CO2/year on a pro forma basis.


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 2022 was approximately 1.5 billion yen. The main investments were R&D investment relating to circular carbon methanol (CCM) production and updating compressors at the Yokkaichi Plant.

  • Expenses

    Total expenses related to environmental conservation activities in fiscal 2022 were approximately 11.5 billion yen. Of these, the highest expense was about 4.1 billion yen for research and development, accounting for around 36% 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 FY2021
(millions of yen)
(millions of yen)
Investment Expenses Investment Expenses
Onsite cost Pollution prevention cost Air pollution prevention New installation of vent exhaust gas treatment facilities, exhaust gas treatment expenses 71.7 858.8 46.2 922.6
Water pollution prevention Updating of aging facilities, updating of automatic shutoff valves 144.0 1,666.8 62.3 1,975.6
Soil, Noise Measures to prevent soil penetration 19.5 2.7 9.8 0.1
Global environmental preservation cost Updating compressors, updating air conditioning equipment 499.4 2,172.7 631.7 1,818.0
Resource recycling cost Implementation of resource recycling measures 0.4 819.3 28.2 1,088.1
Up or down stream cost Collection and reuse of product containers 3.8 111.7 8.9 0.0
Management activity cost Introduction of environmental data system, environmental-related analysis 1.3 1,391.1 5.9 1,495.9
R&D cost Research and development of energy-saving technologies and eco-friendly products 1,188.6 2,826.0 733.7 4,169.7
Social contribution cost Membership dues of nature conservation organizations 0.0 4.7 0.0 4.0
Environmental damage cost Pollution impacts levy 0.0 75.0 0.0 47.8
Total 1,928.7 9,928.7 1,526.9 11,521.9
Economic benefit
Title Item FY2021
(millions of yen)
(millions of yen)
Income Profit on sale of valuable waste, etc. 7.6 60.6
Reduction of expenses Effects due to energy saving, power savings from solar power generation 74.4 242.4
  • Compliance with the Ministry of the Environment's Environmental Accounting Guidelines 2005
  • Period:From April 1, 2022 to March 31, 2023
  • 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.