Significant Environmental Accidents / Biodiversity

Environmental Impact of Business Activities (material flow)

INPUT (resources & energy)

Raw Material Input 12,840 kt

Percentage of Recycled Input Raw Materials Used 2.21%

Raw Materials Total 10,424 kt
Gold and silver ore 202 kt
Copper concentrates 1,493 kt
Nickel oxide ore 8,418 kt
Nickel matte, etc. 37 kt
Raw material for batteries 85 kt
ALC raw material, incl. silica rock 150 kt
Hydrotreating catalyst raw material 39 kt
Recycled Materials1 Total 236 kt
Copper scrap 122 kt
Secondary zinc 11 kt
Precious metals and other secondary materials 5 kt
Electric arc furnace dust 97 kt
ALC waste 848 t
Materials Total 2,180 kt
Silica sand (for copper smelting) 115 kt
Chemicals (lime-based) 1,313 kt
Chemicals (sodium-based) 102 kt
Chemicals (magnesium-based) 15 kt
Sulfuric acid 545 kt
Cement, etc. 91 kt

Energy Input2 22,762 TJ

Total Energy Consumption

Non-Renewable Energy Sources Total 22,696 TJ
Heavy oil 1,783 TJ 44,516 kL
Coal/coke 13,778 TJ 533,553 t
Diesel/gasoline/kerosene 997 TJ 26,529 kL
LPG/LNG 414 TJ 8,143 t
City gas/natural gas 605 TJ 13,477 ML
Purchased electricity 5,120 TJ 1,422,101 MWh
Purchased steam3 0 TJ 75 GJ
Renewable Energy Total 66 TJ
Solar power generation,
binary power generation		 1 TJ 295 MWh
Biomass steam 65 TJ 63,544 GJ

Water Withdrawal4 197,186 ML

Total Water Consumption from All Areas5 3,552 ML

Freshwater Withdrawal Total 37,686 ML
Surface water (rivers) 15,321 ML
Rainwater 44 ML
Groundwater 7,586 ML
Industrial water (water from another organization) 14,346 ML
Tap water (water from another organization) 391 ML
Seawater Withdrawal Total 159,500 ML
  • Figures are rounded to the nearest whole number, so totals may not match
  • 1.Does not include materials recycled within plants
  • 2.Fuel, heat, electricity, etc. consumed in business activities in Japan and overseas are covered, and electricity consumption is converted into joules at 3.6 GJ per 1,000 kWh
  • 3.Purchased steam includes purchased cold water
  • 4.SMM uses the WWF Water Risk Filter to identify and assess regions with high water stress and has determined there are no areas of high water stress at SMM Group’s production sites
  • 5.Water consumption is estimated by subtracting the total water discharge from the total water withdrawal for each business site. There was no water storage which would have a significant water-related impact

OUTPUT (products & emissions)

Products 2,676 kt

Percentage of Products from Recycled Input 7.42%

Electrolytic copper 447 kt
Gold 18 t
Silver 228 t
Electrolytic nickel 53 kt
Nickel sulfate 12 kt
Electrolytic cobalt 4 kt
Crude zinc oxide 43 kt
Chromite1 69 kt
Ferronickel 52 kt
Battery materials 61 kt
Sulfuric acid 312 kt
Slag 1,417 kt
Hydrotreating catalysts 10 kt
ALC (Siporex) 303 ML

Emissions

Emissions into the Atmosphere

GHG Total 2,823 kt
Scope 1 (direct emissions)2 1,965 kt
Scope 2 (indirect emissions)3 858 kt
Sox 1,715 t
Nox 1,512 t
Soot and dust 68 t

Discharge into Water 132 t

COD 49 t
BOD 16 t
Total phosphorus 1 t
Total nitrogen 66 t

Release of Chemical Substances (PRTR substances) 84 t

Atmosphere 8 t
Public water areas 75 t
Soil/landfills on business premises 1 t

Total Water Discharge 196,736 ML

Discharges into seas4 195,792 ML
Discharges into rivers 879 ML
Sewerage, etc. 65 ML

Waste5,6 Total waste 6,946 kt

Of which, 6,846 kt is landfill on company premises and 2,438 t is PRTR substance transfers7

Spoil 6 kt
Leach sludge from CBNC, THPAL, etc. 6,840 kt
Industrial waste (Japan) 99 kt
Recycling 23 kt
Other 1 kt
  • 1.The percentage of products from recycled input increased because chromite was added to products in FY2021
  • 2.Both Japan and overseas figures are calculated based on the GHG Protocol, and emission factors are based on the Japanese law “Act on Promotion of Global Warming Countermeasures.”
  • 3.GHG emissions factors for electric power purchased in Japan are the adjusted emissions factors of electric suppliers
    For China and Taiwan, the latest emission factors published by the governments of those countries are used
    For Vietnam, the default emission factor compiled by The Climate Registry (TCR) (2011 national emission factors published by the International Energy Agency (IEA) in 2013) is used
  • 4.Discharges into rivers flowing into enclosed seas are included as “discharges into seas”
  • 5.Waste includes items of value
  • 6.Industrial waste treatment is commissioned to Group companies and industrial waste is recycled for use as raw material. Accordingly, waste figures include some waste which was effectively not discharged outside the Group, in particular (hazardous) sludge
  • 7.Total transfers to sewerage and off-site transfers

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