Environmental Load of Business Activities

The depletion of energy resources, global warming, threats to biodiversity and other environmental problems are having an increasingly serious impact on the global environment. The SUMCO Group identifies electric power, chemical substances, waste products and wastewater as significant environmental aspects in its production activities and pursues initiatives to make environmental considerations and reduce the environmental load across all of its business activities.

Business Activities and Environmental Load in 2018 (SUMCO Group [Japan])

Business Activities and Environmental Load in 2018 (SUMCO Group [Japan])

List of Boundaries

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Site Energy usage CO2 emissions stemming from energy usage Water used/ waste-water Industrial waste generated VOC emissions PRTR emissions Atmos-pheric pollutant emissions Abbre-viation
Includes SUMCO Group companies in Japan Kyushu Factory (Nagahama, Imari) SUMCO
Kyushu Factory (Kubara, Imari)
Kyushu Factory (Saga)
Yonezawa Plant
Chitose Plant
JSQ Division
SUMCO TECHXIV Corp. Nagasaki Plant STC
SUMCO TECHXIV Corp. Miyazaki Plant
SUMCO Technology Corp. Noda Plant STEC
SUMCO Group Companies Overseas SUMCO Phoenix Corporation SPX
PT. SUMCO Indonesia SPTI
FORMOSA SUMCO TECHNOLOGY CORPORATION FST

Environmental Load (Japan)

CO2 emissions (Japan) (thousand tons per year)

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Water consumption (Japan) (million m3 per year)

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Environmental Load (Overseas)

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CO2 emissions (overseas) (thousand tons per year)

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Water consumption (overseas) (million m3 per year)

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  • *CO2 emissions of the overseas subsidiaries are calculated using the emission coefficient of each country based on the Greenhouse Gas Protocol Initiative.

Environmental Data (SUMCO Group)

Greenhouse Gas Emissions Data

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(In thousands t-CO2 per year)
5 years prior (2014) 4 years prior (2015) 3 years prior (2016) 2 years prior (2017) Last year (2018)
Scope 1 (direct) 21 21 21 23 24
Scope 2 (indirect) 1,023 990 913 894 924
Scope 3 (other indirect) 5 4 4 4 4
Scope 1&2 1,044 1,011 934 917 948
Scope 1, 2&3 1,049 1,015 938 921 952
  • *Only "Category 9: Transport, Delivery (Downstream)" was factored into the Scope 3 calculations
Greenhouse Gas Emissions Data (by Company)

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(In thousands t-CO2 per year)
5 years prior (2014) 4 years prior (2015) 3 years prior (2016) 2 years prior (2017) Last year (2018)
SUMCO 610 599 553 538 564
STC 215 195 169 159 164
FST 155 151 147 152 152
SPX 58 56 55 57 56
SPTI 11 14 14 15 16
Total 1,049 1,015 938 921 952
Breakdown of Greenhouse Gas Data (Scope 1)

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(In thousands t-CO2 per year)
5 years prior (2014) 4 years prior (2015) 3 years prior (2016) 2 years prior (2017) Last year (2018)
CO2 21 21 21 23 24
CH4
N2O
HFC 0.01 0.01 0.01 0.01 0.01
PFC
SP6
Other
Energy Consumption

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5 years prior (2014) 4 years prior (2015) 3 years prior (2016) 2 years prior (2017) Last year (2018)
Electricity usage (GWh) 1,676 1,687 1,698 1,735 1,793
Electricity (converted to petroleum) (kL) 419,890 423,325 427,396 436,979 451,403
Fuel (converted to petroleum) (kL) 7,054 5,934 5,860 6,061 6,233
Water Supplied

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(Mm3 per year)
5 years prior (2014) 4 years prior (2015) 3 years prior (2016) 2 years prior (2017) Last year (2018)
Surface water (rivers, wetland, natural lakes) 13.3 12.7 12.2 12.6 13.2
Water underground (well water) 3.2 3.2 3.3 3.5 3.4
Quarry water
Potable water 1.3 1.1 1.1 1.3 1.3
External drainage water
Rainwater
Seawater
Total 17.8 17.0 16.6 17.4 17.9
Water Supplied (by Company)

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(Mm3 per year)
5 years prior (2014) 4 years prior (2015) 3 years prior (2016) 2 years prior (2017) Last year (2018)
SUMCO 9.2 9.0 9.0 9.2 9.4
STC 4.4 4.1 3.8 3.9 4.1
FST 2.3 2.4 2.3 2.5 2.6
SPX 1.5 1.2 1.2 1.4 1.4
SPTI 0.4 0.3 0.3 0.4 0.4
Total 17.8 17.0 16.6 17.4 17.9
Drainage Water

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(Mm3 per year)
5 years prior (2014) 4 years prior (2015) 3 years prior (2016) 2 years prior (2017) Last year (2018)
Total water drained into the ocean 7.1 7.2 7.1 7.3 7.7
Total water drained to surface water sources
Total water drained to underground sources/ well water sources
Total water drained outside of plants 4.8 4.7 4.3 4.8 5.0
Other drainage water 3.3 3.2 3.2 3.4 3.3
Total drainage water 15.2 15.1 14.6 15.5 16.0
Drainage Water (by Company)

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(Mm3 per year)
5 years prior (2014) 4 years prior (2015) 3 years prior (2016) 2 years prior (2017) Last year (2018)
SUMCO 7.9 7.9 8.0 8.1 8.3
STC 3.9 3.6 3.3 3.4 3.7
FST 1.9 2.0 1.9 2.0 2.1
SPX 1.1 1.3 1.2 1.6 1.5
SPTI 0.4 0.3 0.2 0.4 0.4
Total 15.2 15.1 14.6 15.5 16.0