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Environmental Accounting

The NTT Group introduced environmental accounting in fiscal 2001 to boost the efficiency and effectiveness of its environmental conservation efforts by quantitatively determining the costs of environmental conservation programs undertaken as part of its business activities as well as their effects (economic and material benefits).

Moving forward, we aim to implement even more efficient and effective environmental management by continuously carrying out quantitative monitoring and analysis to understand the effects of our environmental activities, clarifying outstanding issues, and sharing information.

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Category Environmental investment
(billion yen)
Environmental costs
(billion yen)
Economic benefits
(billion yen)
Material benefits
(thousands of tons)
Fiscal 2018 Fiscal 2019 Fiscal 2018 Fiscal 2019   Fiscal 2018 Fiscal 2019   Fiscal 2018 Fiscal 2019
(1)Business area costs 8.60 9.35 15.93 19.83
  Pollution prevention costs 0.14 0.24 2.42 5.05
Global environmental conservation costs 8.07 8.92 3.14 3.01 Cost reductions through energy conservation 5.95 6.37 Reductions in CO2 emissions through energy conservation measures 184 119
Resource recycling costs 0.38 0.19 10.37 11.77 Revenues from sale of recyclable waste (decommissioned communications equipment, etc.) 7.34 6.51 Recycled decommissioned communications equipment 176 146
Waste disposal cost reductions through recycling 0.12 0.16 Recycled construction waste 222 325
Cost reductions through reuse of decommissioned communications equipment 26.96 23.02 Recycled civil engineering works waste 115 228
Cost reductions through reuse of communications devices 10.60 13.86 Recycled office waste 32 27
Cost reductions through reuse of office waste materials 0.00 0.00 Other recycled items 18 9
(2) Upstream /
downstream costs
0.02 0.08 10.35 9.77 Revenues from sale of recyclable waste (subscriber communications devices, etc.) 0.52 0.47 Number of communications devices collected from customers (thousands) 9,372 7,581
Cost reductions in postal expenses through computerization 14.17 13.77
(3)Administrative costs 0.12 0.17 5.27 5.13
(4)R&D costs 3.61 3.16 8.10 8.45
(5)Citizenship activity costs 0.02 0.00 0.26 0.06
(6) Environmental remediation costs 0.00 0.00 0.00 0.00
Total 12.37 12.76 39.90 43.24 Total 65.67 64.16

1.Scope of data

The companies subject to consolidated environment accounting are NTT, NTT East, NTT West, NTT Communications, NTT DATA, NTT DOCOMO and their group companies.

2.Applicable period

  • Data for fiscal 2019 is from April 1, 2019 to March 31, 2020.
  • Data for fiscal 2018 is from April 1, 2018 to March 31, 2019.

3.Accounting method

  • Accounting is based on the NTT Group Environmental Accounting Guidelines. These guidelines comply fully with the Environmental Accounting Guidelines 2005 issued by the Ministry of the Environment.
  • Environmental conservation costs are tabulated separately as environmental investments and environmental costs. Personnel costs and depreciation costs are also included in environmental costs.
  • Reductions in CO2 emissions through energy conservation measures are calculated by subtracting actual emissions from projected emissions in the event that no such measures were taken.