Sustainability
Environmental Accounting
The NGK Group discloses our environmental accounting results in accordance with guidelines published by the Ministry of the Environment. We tally the environmental conservation costs (capital investment, expenses), economic benefits, and cost effectiveness for NGK and our Group companies in Japan, and manage information on the environmental efficiency of CO2 and discarded materials as indicators.
(1) Capital Investment (NGK and Group companies in Japan)

FY2022 Capital investment Breakdown(100 million yen)
Pollution prevention | Global environment | Resource recycling | Upstream/ downstream |
Administration | Research & development | Social activity | Environmental remediation | Total |
---|---|---|---|---|---|---|---|---|
11.7 | 7.0 | 0.4 | 0.0 | 0.0 | 0.4 | 0.0 | - | 19.4 |
(2) Expenditures(NGK and Group companies in Japan)

FY2022 Expenditures Breakdown(100 million yen)
Pollution prevention | Global environment | Resource recycling | Upstream/ downstream |
Administration | Research & development | Social activity | Environmental remediation | Total |
---|---|---|---|---|---|---|---|---|
8.3 | 4.3 | 7.8 | 0.1 | 5.2 | 1.7 | 2.3 | 2.1 | 31.8 |
(3) Economic Benefits(NGK and Group companies in Japan)

FY2022 Economic Benefits Breakdown(100 million yen)
Energy savings | Resource conservation (water) |
Resource conservation (raw materials) |
Resource conservation (packaging) |
Discarded materials (disposal decrease) |
Discarded materials (gain on sale) |
Total |
---|---|---|---|---|---|---|
3.0 | 0.0 | 0.1 | 0.0 | 1.7 | 2.8 | 7.7 |
(4) Cost-Effectiveness(NGK and Group companies in Japan)

(5) Environmental Efficiency(consolidated)

Note: The above charts do not include data for NGK Electronics Devices, Inc. and some other manufacturing subsidiaries prior to FY2015.