Sustainability

Environmental Data

* All data, unless otherwise noted, are based on the following assumptions.

Scope of aggregation: Yokkaichi Plant and Chiba Plant
Period covered: April 1 to March 31

Energy

Scope of aggregation: All KH Neochem operating facilities
Period covered: April 1 to March 31

Energy consumption and specific consumption

Fiscal year 2017 2018 2019 2020 2021 2022 2023
Energy consumption (crude oil equivalent) 1000kL 218.8 208.7 204.6 194.2 214.4 187.8 186.1
Energy specific consumption L/t 199.6 210.0 207.2 222.3 204.9 230.4 226.7

GHG emissions volume

Fiscal year 2017 2018 2019 2020 2021 2022 2023
GHG emissions volume kt 473.6 448.9 440.2 404.2 422.4 379.1 378.4

Energy consumption and specific consumption in physical distribution

Fiscal year 2017 2018 2019 2020 2021 2022 2023
Energy consumption (crude oil equivalent) kL 2,977 2,957 2,811 2,580 3,286 2,701 2,525
Energy specific consumption L/t 6.7 6.8 6.2 6.0 6.6 6.7 6.1

*1 Reported figures based on the act on the Rational Use of Energy

*2 After confirming with the GHG emissions reporting window to the government, deduct from GHG emissions from FY2021 the amount of CO2 recovered from our manufacturing processes and used as raw materials for our products.

Air pollutants

Amounts released (SOx, Nox, Dust)

Fiscal year 2017 2018 2019 2020 2021 2022 2023
SOx t 2.3 2.3 2.3 0.5 0.5 0.4 0.5
NOx t 321.3 268.9 259.9 283.8 338.7 286.4 279.3
Dust t 7.4 7.1 6.6 4.2 9.2 5.2 7.0

Levels agreed upon with local communities and annual maximum values

Yokkaichi Plant

Fiscal year 2017 2018 2019 2020 2021 2022 2023
SOx Maximum value (Nm3/h) 0.0 0.0 0.0 0.0 0.0 0.0 0.0
Agreement level (Nm3/h) 1.0 1.0 1.0 1.0 1.0 1.0 1.0
NOx Maximum value (kg/h) 30.6 24.3 26.5 45.5 43.5 40.0 42.7
Agreement level (kg/h) 53.0 53.0 53.0 53.3 53.3 53.1 53.1
Dust Maximum value (g/Nm3) 0.001 0.001 0.001 0.002 0.003 0.001 0.001
Agreement level (g/Nm3) 0.025 0.025 0.025 0.025 0.025 0.025 0.025

Chiba Plant

Fiscal year 2017 2018 2019 2020 2021 2022 2023
SOx Maximum value (Nm3/h) 0.1 0.1 0.1 0.1 0.0 0.0 0.5
Agreement level (Nm3/h) 9.0 9.0 9.0 9.0 9.0 9.0 9.0
NOx Maximum value (Nm3/h) 2.2 2.3 1.9 2.3 2.9 3.0 2.7
Agreement level (Nm3/h) 12.0 12.0 12.0 12.0 12.0 12.0 12.0
Dust Maximum value (kg/h) 0.4 0.6 0.5 0.5 0.4 0.4 0.4
Agreement level (kg/h) 4.5 4.5 4.5 4.5 4.5 4.5 4.5

Water pollutants

Amount released (total effluent discharged)

Fiscal year 2017 2018 2019 2020 2021 2022 2023
Amount released (total effluent discharged) kt 6,147 6,425 6,220 6,233 6,374 6,423 6,485

Amounts released (COD, T-N, T-P)

Fiscal year 2017 2018 2019 2020 2021 2022 2023
COD t 25.8 23.3 24.7 28.7 25.9 21.7 14.2
T-N t 10.6 10.6 9.7 10.4 11.3 9.5 9.2
T-P t 2.1 1.8 1.6 1.8 1.8 1.9 0.5

Levels agreed upon with local communities and annual maximum values

Yokkaichi Plant

Fiscal year 2017 2018 2019 2020 2021 2022 2023
COD Maximum value (kg/day) 90.7 137.1 110.2 127.5 126.9 86.0 68.4
Agreement level (kg/day) 201.2 201.2 201.2 201.2 201.2 201.2 187.1
T-N Maximum value (kg/day) 29.8 36.5 21.8 37.0 36.9 19.0 28.5
Agreement level (kg/day) 46.0 46.0 46.0 46.0 46.0 46.0 45.1
T-P Maximum value (kg/day) 9.4 9.6 9.1 9.3 9.3 7.8 8.8
Agreement level (kg/day) 13.0 13.0 13.0 13.0 13.0 13.0 12.9

Chiba Plant

Fiscal year 2017 2018 2019 2020 2021 2022 2023
COD Maximum value (kg/day) 62.9 79.3 53.4 88.4 68.9 89.0 115.6
Agreement level (kg/day) 124.0 124.0 124.0 124.0 124.0 124.0 126.0
T-N Maximum value (kg/day) 38.9 52.3 37.9 72.9 52.3 52.8 61.0
Agreement level (kg/day) 90.0 90.0 90.0 90.0 90.0 90.0 90.0
T-P Maximum value (kg/day) 5.7 3.2 4.0 5.2 6.3 5.1 5.7
Agreement level (kg/day) 12.5 12.5 12.5 12.5 12.5 12.5 12.5

Waste material

Amount of waste generated, amount discharged, amount as final landfill

Fiscal year 2017 2018 2019 2020 2021 2022 2023
Amount of waste generated t 54,705 54,825 52,610 53,686 54,026 46,173 45,472
Amount released t 9,958 11,337 8,962 8,537 7,554 7,504 8,613
Amount treated as final landfill t 140 124 136 133 106 92 106
Ratio disposed of as landfill ％ 0.26 0.23 0.26 0.25 0.20 0.20 0.23

Recycled amount and recycling rate

Fiscal year 2017 2018 2019 2020 2021 2022 2023
Recycled amount t 3,418 3,482 3,600 3,885 3,967 3,480 3,104
Recycling rate % 6.2 6.4 6.8 7.2 7.3 7.5 6.8

Waste material treatment flow in FY2023

Amount of waste generated
45,472t100.0%
Amount recycled internally
2,892t6.4%
Amount reduced internally
33,968t74.7%
Amount treated internally as final landfill
0t0.0%
Amount as final landfill
8,613t18.9%
Amount recycled externally
212t0.5%
Amount reduced externally
8,295t18.2%
Amount treated externally as final landfill
106t0.2%

* Some totals may not tally due to rounding

Environmental Data by Plant

Period covered: April 1, 2023 to March 31, 2024

Yokkaichi Plant Chiba Plant
Specific energy consumption L/t 233.1 208.3
SOx amount released t 0.0 0.5
NOx amount released t 238.9 40.5
Dust amount released t 4.0 3.0
Total effluent discharged kt 4,354 2,131
COD amount released t 9.0 14.2
T-N amount released t 1.5 9.2
T-P amount released t 1.5 0.5
Amount of waste generated t 42,775 2,697
Amount disposed of as landfill t 101.5 4.1

Amount of PRTR Act Type 1 designated chemical substances released

Fiscal year 2023

Period covered: April 1, 2023 to March 31, 2024

Yokkaichi Plant

Description Amount (t)
Acetaldehyde 1.4
Diethylene glycol monobutyl ether 1.4
Butyl cellosolve 1.1
Toluene 0.8
2-Aminoethanol 0.7
Hydrogen fluoride and its water-soluble salts 0.7
Ethylene oxide 0.3
1,2-Dichloroethene 0.3
Boron compounds 0.1
Phthalic anhydride 0.1
Dioxins 6.7mg-TEQ
Others (12 substances) 0.0

Chiba Plant

Description Amount (t)
Cobalt and its compounds 1.5
Dioxins 0.8mg-TEQ
Others (7 substances) 0.0

Emissions to Air and Water

Fiscal year 2017 2018 2019 2020 2021 2022 2023
Air t 4.7 4.6 3.3 3.9 5.3 5.8 2.1
Water t 5.0 7.3 7.3 8.2 8.9 6.6 7.5

Environmental Accounting

Scope of aggregation: Yokkaichi Plant and Chiba Plant (million yen)
Period covered: January 1 to December 31

Environmental conservation costs

Fiscal year 2017 2018 2019 2020 2021 2022 2023
Classification Substance of main measures Investment amounts Expense amounts Investment amounts Expense amounts Investment amounts Expense amounts Investment amounts Expense amounts Investment amounts Expense amounts Investment amounts Expense amounts Investment amounts Expense amounts
Costs within business area 1 Pollution prevention costs Air pollution prevention, water pollution prevention, etc. 15 688 25 885 174 881 999 930 14 925 158 1,127 144 1,353
2 Global environmental conservation costs Global warming prevention, energy conservation measures, etc. 0 255 55 394 0 247 57 170 1,397 388 12 428 39 424
3 Resource recycling costs Efficient use of resources, recycling of waste, etc. 54 1,086 33 1,325 14 1,260 36 1,193 14 1,158 5 1,786 0 1,881
Total from 1 to 3 69 2,030 114 2,603 188 2,388 1,092 2,293 1,426 2,471 175 3,341 183 3,658
Upstream and downstream costs Purchase of recycled stationery (eco-label goods), etc. 0 2 0 2 0 2 0 1 0 1 0 1 0 1
Management program costs Environmental management system maintenance, operation, etc. 0 29 0 31 0 26 0 25 0 28 0 32 0 164
Research and development costs Research and development, etc. for products contributing to environmental conservation, etc. 0 168 0 251 0 223 0 148 0 92 0 36 0 64
Social program costs Contributions to groups engaging in environmental conservation, support, etc. 0 0 0 0 0 0 0 0 0 0 0 0 0 0
Environmental remediation costs Oil spill liability insurance, levies on pollution loads 0 7 0 7 0 6 0 6 0 6 0 6 0 5
Total 69 2,235 114 2,894 188 2,644 1,092 2,474 1,426 2,598 175 3,416 183 3,893

* Some totals may not tally due to rounding

Economic impact

Fiscal year 2017 2018 2019 2020 2021 2022 2023
Profit Sales of waste material (waste catalyst, scrap, etc.), sales of recovered containers 9 17 9 6 24 42 11