ESG Data

Scope of data calculation

The terms below are used to indicate the scope of calculation for the data provided.

  • “SCI” indicates all facilities of Sanyo Chemical Industries, Ltd.
  • “Domestic” indicates SCI, SDP Global Co., Ltd., San Chemical Co., Ltd., SAN NOPCO LIMITED, San-Petrochemicals Co., Ltd., San-Apro Ltd., Sanyo Chemical Logistics Co., Ltd., Shiohama Chemicals Warehouse Co., Ltd.
  • “Overseas” indicates overseas affiliates/subsidiaries that have production facilities (Sanyo Kasei (Thailand) Ltd., San-Dia Polymers (Nantong) Co., Ltd., Sanyo Chemical Texas Industries, LLC).
  • For facilities with no notation, the scope is “domestic” plus “overseas.”
  • SDP Global Co., Ltd. was absorbed by Sanyo Chemical on April 1, 2025, and San-Dia Polymers (Nantong) Co., Ltd. transferred its stake during FY2024, but data shown here includes FY2024 figures for these companies.
    Period: April 1, 2024 - March 31, 2025
    However, Sanyo Kasei (Thailand) Ltd. uses a fiscal year from January 1, 2024 to December 31, 2024, the same as its reporting period.

ISO Certification

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ISO Certification

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Location Facility Year of establishment
(operation)		 ISO14001 ISO9001
Year acquired Certification authority Year acquired Certification authority
Production Base - Kashima Factory,
Sanyo Chemical Industries, Ltd.		 1977 - - 1997 JCQA
- Kyoto Factory,
Sanyo Chemical Industries, Ltd.		 1949 - - 1999 JCQA
- Nagoya Factory,
Sanyo Chemical Industries, Ltd.		 1969 - - 1998 JCQA
- Kinuura Factory,
Sanyo Chemical Industries, Ltd.		 2010 - - 2010 JCQA
(1) San Chemical Co., Ltd. 1982 - - 2000 JCQA
(2) SAN NOPCO LIMITED 1966 - - 2000 JCQA
(3) San-Petrochemicals Co., Ltd. 1977 - - - -
(4) Sanyo Kasei (Thailand) Ltd. 1997 2009 TICA/J-VAC 2004 TICA/J-VAC
(5) Sanyo Chemical Texas Industries, LLC 2005 - - - -
Non-production Base (6) San-Apro Ltd. 1966 - - 2003 JCQA
(7) Sanyo Chemical Logistics Co.,Ltd. 2020 - - - -
(8) Shiohama Chemicals Warehouse Co.,Ltd. 1983 - - - -
  • The four Sanyo Chemical factories and domestic subsidiaries and affiliates (1) through (3) discontinued their ISO14001 certification in FY2020.
    (3) San-Petrochemicals Co., Ltd. also discontinued its ISO9001 certification in FY2020.

Data Concerning Environmental Investment and Environmental Efficiency

Environmental Accounting Results

Trends in aggregate values by classification based on the Environmental Accounting Guidelines (2005 version)
Scope: Domestic and overseas (except for SDP Global Co., Ltd., San-Dia Polymers (Nantong) Co., Ltd.)

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Classification According to Business Activity

Investment/expenses (unit: million yen)

Classification FY2020 FY2021 FY2022 FY2023 FY2024
Facility area expenses (1) Pollution prevention expenses 260/843 216/842 297/875 164/884 235/841
(2) Global environmental conservation expenses 81/650 64/671 27/663 31/640 65/549
(3) Resource recycling expenses 41/1,850 1/1,794 1/1,898 58/1,378 0/1,202
Upstream/downstream expenses 0/34 2/40 0/33 0/32 0/35
Administrative expenses 1/459 55/475 3/505 0/411 0/346
R&D expenses* 0/464 0/663 0/730 0/760 0/2,331
Social activity expenses 0/124 0/132 0/138 0/154 0/190
Environmental remediation expenses 20/5 0/3 0/4 0/3 0/0
Total 404/4,428 338/4,620 327/4,846 252/4,263 301/5,495
  • Investment amounts are based on receiving inspections for the period in question. Expense amounts include depreciation.
  • Calculation method changed in FY2024

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Classification According to Environmental Conservation Measures

Investment/expenses (unit: million yen)

Classification FY2020 FY2021 FY2022 FY2023 FY2024
(1) Global warming measures 40/633 19/646 34/642 37/630 65/546
(2) Ozone layer protection measures 0/1 1/5 0/2 0/5 0/4
(3) Air-quality conservation measures 185/394 232/391 224/408 136/407 153/393
(4) Noise and vibration measures 5/75 1/64 0/74 0/70 0/65
(5) Environmental conservation measures for the aquatic,
ground, and geologic environments		 136/414 73/432 62/456 44/446 82/399
(6) Waste and recycling measures 34/1,857 1/1,803 1/1,906 58/1,383 0/1,204
(7) Measures for reducing chemical risk and emissions 0/282 0/277 0/259 0/204 0/222
(8) Natural environment conservation 0/16 3/17 1/16 0/12 0/12
(9) Other 3/292 9/322 5/354 4/346 1/318
Total 404/3,963 338/3,957 327/4,116 279/3,504 301/3,163
  • R&D investment/expenses are not classified

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Economic Impact of Environmental Conservation Measures (monetary units)

(unit: million yen)

Classification FY2020 FY2021 FY2022 FY2023 FY2024
Energy savings 6 41 20 26 105
Resource savings Waste reduction 48 77 7 40 78
Raw material use reduction 174 152 82 137 52
Revenue from recycling 52 55 70 78 61
Total 279 325 179 281 296
  • Includes effects of non-investment measures (e.g., process improvements )

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Environment, Safety, and Accident Prevention Investment

(unit: million yen)

FY2020 FY2021 FY2022 FY2023 FY2024
Environmental conservation 404 338 327 252 301
Safety/accident prevention 344 391 611 719 636
Total 747 729 938 971 937

Cumulative environmental investment (since FY2005)

Cumulative environmental investment (since FY2005)

Cumulative safety/accident prevention investment (since FY2005)

Cumulative safety/accident prevention investment (since FY2005)

Climate Change Related Data

Energy Related Data

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unit Scope FY2020 FY2021 FY2022 FY2023 FY2024
Production volume tons Domestic 332,320 343,716 317,848 283,209 233,063
Overseas 238,468 179,998 149,516 162,413 81,359
Total 570,788 523,714 467,365 445,622 314,422
Raw material input tons Domestic 383,120 400,002 362,825 305,929 267,712
Overseas 319,739 236,875 198,151 206,452 8,261
Total 702,859 636,877 560,976 512,380 275,973
Energy consumption Crude oil equivalent kL Domestic 81,073 81,013 78,229 64,917 56,857
Overseas 64,981 51,205 44,993 43,072 19,992
Total 146,054 132,218 123,221 107,989 76,850
Energy consumption intensity per production volume Crude oil equivalent kL/ton Domestic 0.244 0.236 0.246 0.229 0.244
Overseas 0.272 0.284 0.301 0.265 0.246
Total 0.256 0.252 0.264 0.242 0.244
Energy generated on-site
(cogeneration)		 Crude oil equivalent kL Domestic 15,975 13,165 13,332 9,878 9,584
Overseas 2,824 2,782 3,047 1,555 0*
Total 18,799 15,946 16,379 11,433 9,584
Renewable energy use
(solar power generation)		 Crude oil equivalent kL Domestic 12 13 13 5 11
Overseas 30 32 20 11 17
Total 42 45 32 16 28
Energy mix Purchased electricity % Domestic and overseas 30.4 33.0 33.1 31.6 33.1
Purchased steam 13.0 17.1 18.4 21.3 24.8
Fuel oil 2.0 0.8 0.5 2.1 1.9
Natural gas 35.6 37.6 38.1 30.7 27.2
LPG 19.1 11.6 10.0 14.3 13.0
  • The overseas cogeneration equipment was located at SDP Global (Malaysia) SDN.BHD.

GHG Related Data

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unit Scope FY2020 FY2021 FY2022 FY2023 FY2024
GHG emissions*1 tons CO2 Domestic 157,715 153,406 146,565 122,861 105,968
Overseas 150,568 123,562 109,031 108,177 52,599
Total 308,283 279,968 255,596 231,038 158,567
 CO2 tons Domestic
and
overseas		 307,950 276,092 255,211 230,611 158,273
 CH4 tons CO2 Domestic
and
overseas		 10 10 10 30 24
 N2O tons CO2 Domestic
and
overseas		 43 38 36 156 113
 Fluorocarbon leakage volume*2 tons CO2 Domestic 280 827 339 241 157
GHG emissions intensity per unit of production tons CO2/tons Domestic 0.475 0.446 0.461 0.434 0.456
Overseas 0.631 0.686 0.729 0.666 0.647
Total 0.540 0.529 0.547 0.518 0.505
CO2 emissions during transport as a consignor*3 tons CO2 Domestic 10,398 10,368 8,765 8,127 7,646
Increase in CO2 forest absorption*4 tons CO2 Domestic 13 39 11 20 13
Avoided CO2 emissions by using our products*5 10,000tons CO2 - 48 49 49 54 90
  1. Calculated in conformance with the Act on Promotion of Global Warming Countermeasures. However, the CO2 conversion factors for electricity at overseas facilities conforms to the U.S. Energy Information Administration (EIA) figures in the case of the U.S.A., and to the Institute for Global Environmental Strategies (IGES) figures in the case of China, Thailand, and Malaysia.
  2. Volume of leakage from air conditioners, chillers, etc. based on the Act on Rational Use and Proper Management of Fluorocarbons
  3. Total domestic transportation for SCI; SDP Global Co., Ltd.; and SAN NOPCO LIMITED
  4. Increase in CO2 absorption by forest thinning and other measures in the town of Wazuka due to funding provided to the Kyoto Model Forest Association's "Forest Creation Fund" LIMITED
  5. Avoided CO2 emissions are calculated by comparing the emissions from conventional products with those from our products, and multiplying the difference by the sales volume for the relevant fiscal year.
    The target products were reviewed in FY2024. For details, see ≫ Supporting the Environment | Environmental Performance Chemicals
  • Domestic GHG emissions until FY2022 have been recalculated as they did not include fluorocarbon leakage volume.

GHG Emissions Data by Scope

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(unit: CO2 tons)

FY2020 FY2021 FY2022 FY2023 FY2024
Scope 1 – Direct emissions 181,509 145,753 130,031 105,287 69,315
Scope 2 – Indirect emissions from the use of energy supplied by others (market basis) 126,495 130,283 125,226 125,751 89,252
Scope 3 – Sum of supply chain emissions across all categories 2,322,571 2,393,025 2,215,054 1,910,981 1,754,201
Cat 1*1 – Purchased goods and services 1,178,559 1,216,830 1,151,303 1,013,918 922,054
Cat 2 – Capital goods 18,367 20,922 19,670 17,065 20,662
Cat 3 – Fuel and energy-related activities not included in Scope 1 or 2 24,564 24,219 24,009 32,908 30,286
Cat 4 – Upstream transportation and distribution 21,789 26,482 20,780 18,492 21,843
Cat 5 – Waste generated in operations 409 812 820 23,811 12,301
Cat 6 – Business travel 189 184 181 179 204
Cat 7 – Employee commuting 476 472 463 461 511
Cat 8*2 – Upstream leased assets - - - - -
Cat 9*3 – Downstream transportation and distribution - - - - -
Cat 10*3 – Processing of sold products - - - - -
Cat 11*3 – Use of sold products - - - - -
Cat 12 – End-of-life treatment of sold products 1,027,575 1,055,712 948,355 749,945 698,266
Cat 13*2 – Downstream leased assets - - - - -
Cat 14*4 – Franchises - - - - -
Cat 15 – Investments 50,643 47,391 49,473 54,200 48,432
  • Scope 3 emissions were calculated based on the Basic Guidelines on Accounting for Greenhouse Gas Emissions Throughout the Supply Chain issued by the Ministry of the Environment and by reference to the Ministry of the Environment's Report on Emissions Unit Values for Calculation of Greenhouse Gas Emissions, etc., by Organizations Throughout the Supply Chain. Version 2.3 is used through FY2022, and version 3.4 is used from FY2023
  • [Scope of Calculation]
    • Scope 1, Scope 2: Domestic and overseas
    • Scope3
      Until FY2023
      Cat 1-7: SCI, SDP Global Co., Ltd., San Chemical Co., Ltd.
      Cat 12: SCI, SDP Global Co., Ltd., San Chemical Co., Ltd., certain products sold by overseas affiliates/subsidiaries
      Cat 15: SCI
      In FY2024
      Cat 1：SCI, SDP Global Co., Ltd., San Chemical Co., Ltd.
      Cat 2：Domestic
      Cat 3：SCI, SDP Global Co., Ltd., San Chemical Co., Ltd., SAN NOPCO LIMITED, San-Petrochemicals Co. Ltd.
      Cat 4：SCI, SDP Global Co., Ltd., San Chemical Co., Ltd., SAN NOPCO LIMITED, San-Petrochemicals Co. Ltd.
      Cat 5：SCI, SDP Global Co., Ltd., San Chemical Co., Ltd.
      Cat 6：Domestic
      Cat 7：Domestic
      Cat 12：SCI, SDP Global Co., Ltd., San Chemical Co., Ltd., certain products sold by overseas affiliates/subsidiaries
      Cat 15：SCI
  1. Changed the CO2 conversion factor for purchased raw materials to "IDEA Ver. 2" of the National Institute of Advanced Industrial Science and Technology (AIST) in FY2022. Before FY2021: "Common Unit CO2 Conversion Database ver. 4.01," Ministry of the Environment of Japan, Carbon Footprint System Pilot Project
  2. Only leases within the group; calculated for Scopes 1 and 2
  3. Not calculated due to difficulty in collecting necessary data for calculation
  4. Out of scope as there were no relevant activities

Waste and Resource Circulation Related Data

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unit Scope FY2020 FY2021 FY2022 FY2023 FY2024
Waste generated tons Domestic 36,627 38,274 34,587 30,653 28,274
Overseas 8,803 7,891 9,607 9,371 3,892
Total 45,430 46,165 44,194 40,024 32,165
Waste intensity per unit of production tons/tons Domestic 0.110 0.111 0.109 0.108 0.121
Overseas 0.037 0.044 0.064 0.058 0.048
Total 0.080 0.088 0.095 0.090 0.102
Waste emissions tons Domestic 13,317 14,574 14,541 11,633 10,555
Overseas 9,004 7,424 8,562 8,459 3,876
Total 22,321 21,997 23,103 20,092 14,432
Recycled waste*1 tons Domestic 6,935 7,657 7,113 5,597 8,148
Overseas 3,891 3,315 4,508 4,377 625
Total 10,825 10,972 11,621 9,974 8,773
Recycle rate*2 % Domestic 18.9 20.0 20.6 18.3 28.8
Overseas 44.2 42.0 46.9 46.7 16.1
Total 23.8 23.8 26.3 24.9 27.3
Final landfill disposal tons Domestic 0.9 1.0 2.5 0.7 0
Overseas 3.0 5.1 3.9 3.6 3.0
Total 3.9 6.1 6.4 4.3 3.0
Landfill rate*3 % Domestic 0 0 0.01 0 0
Overseas 0.03 0.06 0.04 0.04 0.08
Total 0.01 0.01 0.01 0.01 0.01
Specially controlled industrial waste*4 tons Domestic 3,689 2,016 3,295 1,259 1,035
  1. Total amount of internal and external recycling, including thermal recycling
  2. Ratio of recycled waste to waste generated: Recycled waste ÷ waste generated×100
  3. Ratio of final landfill disposal to waste generated: Final landfill disposal ÷ waste generated×100
  4. Specially controlled industrial waste: Industrial waste with explosive, toxic, infectious, or other properties that may harm human health or the living environment

Water Resource Related Data

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unit Scope FY2020 FY2021 FY2022 FY2023 FY2024
Water withdrawal thousand ㎥ Domestic and overseas 4,269 4,295 4,333 3,973 3,732
  Tap water thousand ㎥ Domestic 132 137 139 130 130
Overseas 263 284 261 204 17
Total 395 421 400 334 147
  Industrial water thousand ㎥ Domestic 3,367 3,558 3,513 3,202 3,158
Overseas 507 315 421 437 427
Total 3,873 3,874 3,933 3,639 3,585
  Surface water (rivers, lakes, marshes, etc.) thousand ㎥ Domestic and overseas 0 0 0 0 0
  Ground water thousand ㎥ Domestic and overseas 0 0 0 0 0
  Seawater thousand ㎥ Domestic and overseas 0 0 0 0 0
Facilities in water stress areas*1 locations Domestic and overseas - - - - 1
Total water withdrawal in water stress areas thousand ㎥ Domestic and overseas - - - - 222
Water consumption*2 thousand ㎥ Domestic and overseas 1,382 1,124 1,035 1,061 781
Water discharge*3 thousand ㎥ Domestic 2,738 3,039 3,024 2,711 2,772
Overseas 149 132 274 201 180
Total 2,887 3,171 3,298 2,912 2,952
Water discharged into surface waters (rivers, lakes, marshes, etc.) thousand ㎥ Domestic 1,688 1,912 1,924 1,671 1,763
Water discharged underground thousand ㎥ Domestic 0 0 0 0 0
Marine discharge thousand ㎥ Domestic 889 985 955 899 860
Water discharged to third parties (sewage systems, etc.) thousand ㎥ Domestic 159 140 144 141 149
COD in wastewater*3 tons Domestic 117 156 142 115 152
Overseas 23 17 29 26 30
Total 140 173 171 142 181
Total phosphorus emissions in wastewater*3 tons Domestic 0.83 0.77 0.97 0.68 0.69
Overseas 0 0 0 0.01 0
Total 0.83 0.77 0.97 0.69 0.69
Total nitrogen emissions in wastewater*3 tons Domestic 5.1 4.2 4.0 3.0 4.6
Overseas 0.6 0.8 1.3 1.3 2.6
Total 5.6 5.0 5.3 4.2 7.3
  1. Assessment using the Aqueduct 4.0 Water Risk Atlas from the World Resources Institute (WRI)
    Areas where "Water Stress" is "Extremely High" or "High" are defined as water stress areas.
  2. Water consumption: The difference between the volume of water withdrawal and the volume of water discharged
  3. Excludes San-Dia Polymers (Nantong) Co., Ltd. in FY2024

Chemical Substance Emission Data

Atmospheric Emissions Related Data

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unit Scope FY2020 FY2021 FY2022 FY2023 FY2024
NOx*1 tons Domestic 87 39 89 84 50
Overseas 36 20 15 16 1
Total 123 60 104 100 51
SOx*1 tons Domestic 1.1 1.6 0.6 1.5 1.3
Overseas 10.0 5.0 4.1 6.3 0.2
Total 11.1 6.6 4.7 7.8 1.5
Soot and dust*1 tons Domestic 3.1 2.0 4.6 3.7 2.0
Overseas 3.9 2.2 1.9 2.0 0.0
Total 7.0 4.2 6.5 5.7 2.0
VOC emissions*2 tons Domestic 70 73 66 44 39
Overseas 23 17 8 8 4
Total 93 90 74 52 43
Leakage of flurocarbons*1 kg Domestic 106 252 102 84 82
 Ozone-depleting substances*3 kg CFC-11 3 1 1 0 0
  1. Excludes SDP Global Co., Ltd. in FY2024
  2. Total atmospheric emission of substances subject to former and current revisions of the PRTR Law, and PRTR substances specified by the Japan Chemical Industry Association.
    Due to legal revisions, revisions have been made to substances of concern since FY2023.
  3. Leakage of HCFCs from air conditioners, chillers, etc. based on the Act on Rational Use and Proper Management of Fluorocarbons, converted to CFC-11 equivalent.
  • Excludes San-Dia Polymers (Nantong) Co., Ltd. in FY2024

Release/Transfer of Substances Subject to the PRTR Law (domestic sites)

(unit: tons)

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FY2020 FY2021 FY2022 FY2023 FY2024
Atmospheric emissions 44 47 42 29 24
Water emissions 0.4 0.4 0.3 0.4 0.5
Transfer of waste 365 577 517 361 447

Release and Transfer of Major Substances Subject to the PRTR Law, by Facility (FY2024)

Substances subject to notification of which at least 0.01 tons of annual emissions were released to the air or water or transferred, or of which at least 0.1 tons were transferred as waste, are listed below.

(unit: tons)

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Facility Control No. Substance Atmospheric
emissions		 Water
emissions		 Transfer
of waste
Nagoya Factory 4 Acrylic acid and its water-soluble salts 0.28 0 0
9 Acrylonitrile 0.04 0 0
37 4,4'-Isopropylidenediphenol 0 0.02 0
53 Ethylbenzene 0.08 0.03 143
56 Ethylene oxide 0.07 0 0
58 Ethylene glycol monomethyl ether 0.07 0 0
66 1,2-Epoxybutane 0.35 0 0
68 1,2-Epoxypropane
(also known as propylene oxide)		 1.42 0 0
80 Xylene 0.05 0.03 4.8
134 Vinyl acetate 0.05 0 0
178 1,2-Dichloropropane 0.80 0 0.1
232 N,N-Dimethylformamide 0.12 0.08 57.1
300 Toluene 1.83 0 0.2
398 Benzyl chloride 0.03 0 0
405 Boron compounds 0 0.04 0
674 Tetrahydrofuran 0.09 0 0
737 Methyl isobutyl ketone 0.05 0 0

97 substances
handled

Total emissions or
transfer volume

 5.35 0.37 89.3
Kashima Factory 3 Ethyl acrylate 0.01 0 0
4 Acrylic acid and its water-soluble salts 0.02 0 0
7 n-Butyl acrylate 0.09 0 0
8 Methyl acrylate 0.07 0 0
53 Ethylbenzene 0.83 0.02 92.5
65 Epichlorohydrin 1.40 0 5.1
80 Xylene 0.49 0.01 69.7
123 3-Chloropropene 0.63 0 0
128 Chloromethane 4.19 0 0
134 Vinyl acetate 0.29 0 0
232 N,N-Dimethylformamide 0.03 0 28.5
240 Styrene 0.16 0 3.7
270 Terephthalic acid 0 0 0.3
273 1-Dodecanol 0 0 0.1
277 Triethylamine 0 0 2.0
300 Toluene 0.60 0.05 0
351 1,3-Butadiene 0.01 0 0
415 Methacrylic acid 0.19 0 28.0
420 Methyl methacrylate 3.36 0 30.7
511 Dibenzyl ether 0 0 2.3
564 2-Ethylhexyl Acrylate 0 0 0.9
629 Cyclohexane 2.76 0 0

65 substances
handled

Total emissions or
transfer volume

 15.15 0.12 264.9
Kyoto Factory 53 Ethylbenzene 0 0 13.7
80 Xylene 0 0 9.2
232 N,N-Dimethylformamide 0 0 42.4
300 Toluene 0 0 5.0
420 Methyl methacrylate 0.03 0 1.4

66 substances
handled

Total emissions or
transfer volume

 0.04 0 71.8
Kinuura Factory 56 Ethylene oxide 0.06 0 0
68 1,2-Epoxypropane
(also known as propylene oxide)		 0.18 0 0

3 substances
handled

Total emissions or
transfer volume

 0.25 0 0
San Chemical Co., Ltd. 56 Ethylene oxide 0.10 0 0
68 1,2-Epoxypropane
(also known as propylene oxide)		 0.35 0 0

35 substances
handled

Total emissions or
transfer volume

 0.45 0 0
SDP Global Co., Ltd. 4 Acrylic acid and its water-soluble salts 0.77 0 0

3 substances
handled

Total emissions or
transfer volume

 0.77 0 0.2
SAN NOPCO LIMITED 4 Acrylic acid and its water-soluble salts 0.02 0 0
8 Methyl acrylate 0.01 0 0
30 Linear alkylbenzene sulfonic acid and its salts (limited to those with alkyl chains of 10 to 14 carbon atoms and their mixtures) 0 0 0.1
53 Ethylbenzene 0 0 0.2
80 Xylene 0 0 0.1
300 Toluene 0.09 0 2.6
407 Polyoxyethylene alkyl ether 0 0 0.2
737 Methyl isobutyl ketone 0.40 0 0

68 substances
handled

Total emissions or
transfer volume

 0.57 0 3.4
San-Petrochemicals Co., Ltd. 190 Dicyclopentadiene 0.06 0 3.2
337 4-Vinyl-1-cyclohexene 0.22 0 0.2
351 1,3-Butadiene 0.08 0 0
400 Benzene 0.05 0 0
590 Ethylidene norbornene 1.27 0 7.8

7 substances
handled

Total emissions or
transfer volume

 1.68 0 11.2

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Dioxins

(unit: mgTEQ)

Facility Control No. Substance Atmospheric emissions Water emissions Transfer
of waste
Nagoya Factory 243 Dioxins 0.13 2.54 107.23
Kyoto Factory 243 Dioxins 0.47 0.08 0.19

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Atmospheric Emissions of Major Substances Subject to the PRTR Law (domestic sites)

(unit: tons)

Control No. Substance FY2001 FY2020 FY2021 FY2022 FY2023 FY2024
4 Acrylic acid 4.9 10.4 5.0 6.1 2.0 1.1
9 Acrylonitrile 13.0 0.1 0.1 0 0 0
53 Ethylbenzene 3.8 1.1 1.2 1.2 0.9 0.9
56 Ethylene oxide 17.9 0.5 0.3 0.3 0.2 0.2
65 Epichlorohydrin 1.0 1.4 1.4 1.4 1.5 1.4
68 Propylene oxide 56.2 3.3 3.4 2.3 2.0 2.0
80 Xylene 4.6 0.6 0.7 0.7 0.5 0.5
128 Chloromethane 9.2 17.8 17.2 15.1 6.1 4.2
157 1,2-Dichloroethane 4.3 0.6 0.4 0.4 0.1 0.0
178 1,2-Dichloropropane 3.0 0.8 1.0 0.9 1.1 0.8
232 N,N-Dimethylformamide 2.6 0.2 0.2 0.2 0.2 0.2
240 Styrene 1.6 0.2 0.2 0.2 0.1 0.2
300 Toluene 30.2 0.7 8.6 5.6 4.4 2.5
351 1,3-Butadiene 3.2 0.1 0.1 0.1 0.2 0.1
420 Methyl methacrylate 19.3 4.5 4.8 4.8 4.0 3.4

Main PRTR Measures, and VOC Emission Reduction Measures and Results

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Implemented
(FY)		 Facility Measures Result Reduction per year
(tons)
2001 Nagoya Factory Improvement of propylene oxide receiving system Propylene oxide emissions to the air 50
2001-2005 San-Petrochemicals Co., Ltd. Process improvement Butadiene emissions to the air 1.4
2001-2005 Nagoya Factory, Kashima Factory Reduction of chlorinated solvents (process changes, replacements, discontinuations, etc.) 1,2-Dichloroethane, etc. emissions to the air 7
2002-2004 Kyoto Factory Production process improvement and emissions cooling system installation Methyl methacrylate emissions to the air 9
2002 Nagoya Factory Replacement and/or discontinuation Hydrogen fluoride and its water-soluble salts emissions to water 0.6
2003 Nagoya Factory VOC adsorption system installation Mainly acrylonitrile emissions to the air 25
2004 San Chemical Co., Ltd.
(Kawasaki Factory)		 Propylene oxide emissions combustion system installation Propylene oxide emissions to the air 6
2005 Kashima Factory Production process improvement Methyl methacrylate emissions to the air 3
2005 Nagoya Factory VOC adsorption system installation Mainly toluene emissions to the air 17
2005 Nagoya Factory Ethylene oxide emissions processing system installation Ethylene oxide emissions to the air 20
2005 SDP Global Co., Ltd. (Ogaki Production Dept.) Cyclohexane adsorption/collection system installation Cyclohexane emissions to the air 300
2006 Kashima Factory Cooling system enhancement Methyl methacrylate emissions to the air 4
2007 Nagoya Factory VOC adsorption/collection system installation Dichloropropane, etc. emissions to the air 5
2007 Kyoto Factory VOC adsorption/collection system installation Ethyl acetate emissions to the air 12
2008 Nagoya Factory Cooling system enhancement Hexane, methyl ethylketone emissions to the air 12
2009 Nagoya Factory VOC adsorption/collection system installation Hexane, methyl ethylketone emissions to the air 45
2010 Kyoto Factory VOC removal system installation Methyl methacrylate emissions to the air 4
2012 Kinuura Factory Propylene oxide emissions combustion system installation Propylene oxide emissions to the air 8
2012 San Chemical Co., Ltd.
(Kawasaki Factory)		 Propylene oxide emissions combustion system installation Propylene oxide emissions to the air 1.5
2015 Kashima Factory VOC removal system installation Ethyl acetate emissions to the air 150
Methyl methacrylate emissions to the air 18
2018 SDP Global Co., Ltd. (Ogaki Production Dept.) Facility closure Cyclohexane emissions to the air 14
2020 Nagoya Factory Production process improvement, etc. Propylene oxide emissions to the air 0.7
2020 Sanyo Kasei (Nantong) Co., Ltd. VOC combustion/adsorption/collection system installation Dichloropropane, ethyl acetate, etc. emissions to the air 9.4
2022 Kashima Factory Production process improvement Chloromethane emissions to the air 9.0
Nagoya Factory Cooling system enhancement Mainly toluene emissions to the air
2023 Kashima Factory Production process improvement Chloromethane emissions to the air 1.2

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