Contents
	
1	 Effective Use of Non-Ferrous Metal Resources
	
2	 Climate Change
	
5	 Significant Environmental Accidents /  
Biodiversity
	 12	 Employees’ Occupational Health and Safety
	 16	 Diverse Human Resources /  
Development and Participation of Human Resources
	 22	 Engagement with Stakeholders
	 25	 Co-Existence and Mutual Prosperity with Local 
Communities
	 27	 Other
ESG Data Book 2022

Precious Metal Recovery: Flow Diagram
FY
2019
2020
2021
Total raw materials used (kt)
10,873
10,753
10,047 
Recycled raw materials (kt)
227
229
239 
Percentage of recycled input 
raw materials used (%)
2.08
2.13
2.38 
The SMM Group procures copper and precious 
metal scrap from the market and recovers valuable 
and precious metals from electric arc furnace dust 
and used printed circuit boards, among other sourc-
es. Production of electrolytic copper from recycled 
raw materials was approximately 97 kilotons, 
accounting for 23.1% (23.3% in FY2020) of produc-
tion, a slight drop from the previous fiscal year.
Collecting the likes of discarded household appli-
ances and discarded electronic parts, as well as 
scrap created in the manufacturing process of 
those articles, from across Japan, SMM uses them 
as raw materials to recover and recycle precious 
metals (gold, silver, platinum, etc.).
  After sorting the collected raw materials into 
parts that contain precious metals and those that 
do not, SMM uses the pyrometallurgical or hydro-
metallurgical process, depending on the composi-
tion and other aspects of the parts, to condense 
them, and then transports them to the Toyo Smelter 
& Refinery.
  The Toyo Smelter & Refinery smelts and refines 
those condensed raw materials along with other cop-
per and precious metal raw materials, and then recy-
cles them into highgrade precious metals.
Slag as a Recycled Material
Copper slag is a by-product produced during smelting at the Toyo Smelter & Refinery, which manufactures electrolytic copper. The main use for 
copper slag (70% of the total volume) is cement production for Japan and overseas. With an iron content of about 40%, copper slag is widely used 
as a source of iron for cement.
  The ferronickel slag at Hyuga Smelting Co., Ltd., which manufactures ferronickel used as a raw material for stainless steel, is mainly used at steel 
blast furnaces. With a magnesia content of about 30%, ferronickel slag is used as a source of magnesia for blast furnace flux.
Manufacturing process
Dryer
Dryer
803
kt
522
kt
Flash  
furnace
Kiln
Slag  
cleaning  
furnace
Electric  
furnace
Toyo Smelter & Refinery
Hyuga Smelting Co., Ltd.
Slag produced
Slag sold
Main use
Raw material for cement
For steel blast furnaces
Fine concrete aggregate
For harbor and civil 
engineering construction
For harbor and civil 
engineering construction
Fine concrete aggregate
Copper slag
Ferronickel slag
812
kt
288
kt
Smelting & Refining Division
Calcining
Dissolved by acid, stripping of 
precious metals by cyanide
Melting
Reduction
Pyrometallurgical process
Receipt of scraps containing precious metals
Calcined materials 
containing 
precious metals
Precious metal 
precipitate
Sponge
(reduced gold,  
reduced platinum)
Semi-refined 
gold
Hydrometallurgical process
Percentage of Recycled Input Raw Materials Used  
Governance
Recommended disclosures: Disclose the organization’s governance around climate-related risks and opportunities.
Recommended disclosures
Integrated Report 2022
Pages
a)
Describe the board’s oversight of climate-related 
risks and opportunities.
Vision for 2030–Formulation Approach
Sustainability at the SMM Group Management Approach
P.10
P.72-73
b)
Describe management’s role in assessing and 
managing climate-related risks and opportunities.
Vision for 2030–Formulation Approach
Sustainability at the SMM Group Management Approach
P.10
P.72-73
Strategy
Recommended disclosures: Disclose the actual and potential impacts of climate-related risks and opportunities on the organization’s businesses, 
strategy, and financial planning where such information is material.
Recommended disclosures
Integrated Report 2022
Pages
a)
Describe the climate-related risks and opportuni-
ties the organization has identified over the short, 
medium, and long term.
Vision for 2030
Risks and Opportunities
Overview of the 2021 3-Year Business Plan Adapting to changes in the social environment (Carbon neutrality)
Climate Change Scenario Analysis
P.8-9
P.32-33
P.45
P.92-93
b)
Describe the impact of climate-related risks and 
opportunities on the organization’s businesses, 
strategy, and financial planning.
Risks and Opportunities
Overview of the 2021 3-Year Business Plan Adapting to changes in the social environment (Carbon neutrality)
Vision for 2030, Material Issues, KPIs (Indicators and Goals)
Vision for 2030: (Results and Achievement Criteria and Action Plan up to FY2030) (Climate Change)
Climate Change Approach and Policy
Climate Change Scenario Analysis
P.32-33
P.45
P.74-75
P.79
P.91
P.92-93
c)
Describe the resilience of the organization’s strat-
egy, taking into consideration different climate- 
related scenarios, including a 2°C or lower 
scenario.
Vision for 2030
Risks and Opportunities
Vision for 2030, Material Issues, KPIs (Indicators and Goals)
Vision for 2030: (Results and Achievement Criteria and Action Plan up to FY2030) (Climate Change)
Climate Change Approach and Policy
Climate Change Scenario Analysis
P.8-9
P.32-33
P.74-75
P.79
P.91
P.92-93
Risk Management
Recommended disclosures: Disclose how the organization identifies, assesses, and manages climate-related risks.
Recommended disclosures
Integrated Report 2022
Pages
a)
Describe the organization’s processes for identify-
ing and assessing climate-related risks.
Vision for 2030
Vision for 2030–Formulation Approach
Sustainability at the SMM Group Management Approach
Vision for 2030, Material Issues, KPIs (Indicators and Goals)
Vision for 2030: (Results and Achievement Criteria and Action Plan up to FY2030) (Climate Change)
Climate Change Approach and Policy
Climate Change Scenario Analysis
P.8-9
P.10
P.72-73
P.74-75
P.79
P.91
P.92-93
b)
Describe the organization’s processes for manag-
ing climate-related risks.
Vision for 2030
Vision for 2030–Formulation Approach
Sustainability at the SMM Group Management Approach
Vision for 2030, Material Issues, KPIs (Indicators and Goals)
Vision for 2030: (Results and Achievement Criteria and Action Plan up to FY2030) (Climate Change)
Climate Change Approach and Policy
Climate Change Scenario Analysis
P.8-9
P.10
P.72-73
P.74-75
P.79
P.91
P.92-93
c)
Describe how processes for identifying, assessing, 
and managing climate-related risks are integrated 
into the organization’s overall risk management.
Vision for 2030
Vision for 2030–Formulation Approach
Sustainability at the SMM Group Management Approach
Climate Change Scenario Analysis
P.8-9
P.10
P.72-73
P.92-93
Metrics and Targets
Recommended disclosures: Disclose the metrics and targets used to assess and manage relevant climate-related risks and opportunities where 
such information is material.
Recommended disclosures
Integrated Report 2022
Pages
a)
Disclose the metrics used by the organization to 
assess climate-related risks and opportunities in 
line with its strategy and risk management process.
Vision for 2030, Material Issues, KPIs (Indicators and Goals)
P.74-75
b)
Disclose Scope 1, Scope 2 and, if appropriate, 
Scope 3 greenhouse gas (GHG) emissions and the 
related risks.
GHG Emissions (Scope 1 + 2)
GHG Emissions (Scope 3)
Material Flows within Business Activity (Scope 1, Scope 2)
P.94
P.95
P.101
c)
Describe the targets used by the organization to 
manage climate-related risks and opportunities 
and performance against targets.
Vision for 2030, Material Issues, KPIs (Indicators and Goals)
Vision for 2030: (Results and Achievement Criteria and Action Plan up to FY2030) (Climate Change)
Climate Change Approach and Policy
Material Flows within Business Activity (Scope 1, Scope 2)
P.74-75
P.79
P.91
P.101
TCFD Content Index
1
2
SUMITOMO METAL MINING CO., LTD.     ESG Data Book 2022

SUMITOMO METAL MINING CO., LTD.     ESG Data Book 2022
 Effective Use of Non-Ferrous Metal Resources
 Climate Change

GHG Emissions (Scope 3) FY2021
Category
kt-CO2e
Calculation method and aggregation boundary
1. Purchased goods and services  
3,668.7
Σ (weight of key raw materials x emission factors)
Emission factors are from the LCI Database IDEA v2.3
Boundary: SMM Group, including overseas
2. Capital goods  
225.9
Σ (amount of capital expenditures x emission factors)
Emission factors are from the Database for Calculating GHG Emis-
sions of the Supply Chain, Ver. 3.2, prepared by the Ministry of Envi-
ronment and the Ministry of Economy ,Trade and Industry in Japan.
Boundary: SMM Group, including overseas
Note: Capital expenditures include construction in progress, used equipment, 
and intragroup transactions
3. Fuel- and energy-related activities not included in Scope 1 or 
Scope 2  
239.8
Σ (electricity and fuel consumptions x emission factors)
Emission factors (electricity) are from the Database for Calculating GHG 
Emissions of the Supply Chain, Ver. 3.2, prepared by the Ministry of Envi-
ronment and the Ministry of Economy ,Trade and Industry in Japan.
Emission factors (fuel) are from the LCI Database IDEA v2.3
Boundary: SMM Group, including overseas
4. Upstream transportation and distribution 
25.7
Emissions from domestic transportation are calculated based on the 
Japanese law “the Act on Rationalizing Energy Use” and “the Act on 
Promotion of Global Warming Countermeasures”.
5. Waste generated in operations
7.2
Σ (amount of waste by type (major sites in Japan) x emission factors 
by waste type)
Emission factors are from the Database for Calculating GHG Emis-
sions of the Supply Chain, Ver. 3.2, prepared by the Ministry of Envi-
ronment and the Ministry of Economy ,Trade and Industry in Japan.
Boundary: SMM Group in Japan
6. Business travel
0.8
Σ (number of employees (major sites in Japan) x emission factors)
Emission factors are from the Database for Calculating GHG Emis-
sions of the Supply Chain, Ver. 3.2, prepared by the Ministry of Envi-
ronment and the Ministry of Economy ,Trade and Industry in Japan.
Boundary: SMM Group in Japan
7. Employee commuting
2.7
(By work type and place) Σ (number of employees (major sites in 
Japan) x number of business days x emission factors)
Emission factors are from the Database for Calculating GHG Emis-
sions of the Supply Chain, Ver. 3.2, prepared by the Ministry of Envi-
ronment and the Ministry of Economy ,Trade and Industry in Japan.
Boundary: SMM Group in Japan
8. Upstream leased assets
Not 
applicable
Calculated in Scope 1 and Scope 2 so this is not applicable.
9. Downstream transportation and distribution
Not 
applicable
This category is not applicable because it is difficult to calculate emis-
sions since the products are mainly non-ferrous metals and highly 
advanced materials, which have diverse applications after sales desti-
nations, and each application has different GHG emission 
characteristics.
10. Processing of sold products
Not 
applicable
This category is not applicable because it is difficult to calculate emis-
sions since the products are mainly non-ferrous metals and highly 
advanced materials, which have diverse applications after sales desti-
nations, and each application has different GHG emission 
characteristics.
11. Use of sold products
Not 
applicable
This category is not applicable because it is difficult to calculate emis-
sions since the products are mainly non-ferrous metals and highly 
advanced materials, which have diverse applications after sales desti-
nations, and each application has different GHG emission 
characteristics.
12. End-of-life treatment of sold products
Not 
applicable
This category is not applicable because it is difficult to calculate emis-
sions since the products are mainly non-ferrous metals and highly 
advanced materials, which have diverse applications after sales desti-
nations, and each application has different GHG emission 
characteristics.
13. Downstream leased assets
0.2
Σ (electricity and gas consumption by tenants of the Head Office 
building x emission factors)
Emission factors are from the list of emission factors of the Ministry of 
the Environment’s Greenhouse Gas Emissions Calculations Reporting 
and Publication System.
14. Franchises
Not 
applicable
SMM group does not have franchises so this is not applicable.
15. Investments
Not 
applicable
SMM group does not make financial investments for profit, so this is 
not applicable.
In FY2021, the SMM Group’s GHG emissions (Scope 1+2) were 2,647 
kt-CO2e, reduced through energy conservation activities and other 
efforts. In addition, GHG emissions related to transportation in Japan, 
which are indirect emissions, were 26 kt-CO2e.
  The SMM Group will continue to promote GHG emission reduction 
efforts in FY2022, and anticipates reductions of 12 kt-CO2e for the year.
  GHG emissions reduction due to solar power generated at the solar 
power plant operated by SMM in Kashima, Ibaraki Prefecture came to 
approximately 1.6 kt-CO2e in FY2021.
(kt-CO2e)
Group companies 
in Japan
Group companies 
overseas 
Total
Scope 1
488
1,298
1,786
Scope 2
859
2
861
Total
1,347
1,300
2,647
Scope 3: See p. 4
2021
2020
2019
2018
2017
(kt-CO2e)
0
3,000
2,500
1,500
2,000
1,000
500
(FY)
2,820
2,809
2,807
2,760
2,647
 Smelting & Refining Business in Japan     Mineral Resources Business in Japan     
 Battery Materials Business and Advanced Materials Business     
 Other Businesses in Japan     Smelting & Refining Business overseas     
 Mineral Resources Business overseas     Materials Business overseas
Direct emissions for both Japan and overseas are calculated using emission factors conforming to the Japanese law “Act on Promotion of Global Warming Countermeasures.” This 
includes non-energy-originated GHG emissions (349 kt-CO2e) that are outside the scope of the law. The amount of GHG emissions from electric power purchased in Japan is calculat-
ed according to the market-based method using the emission factors of electric suppliers. For overseas emission factors, we used the latest emission factors for each country as pub-
lished by the IEA.
In the SMM Group’s Smelting & Refining Business in Japan,  energy 
intensity for FY2021 was approximately the same as the previous 
year.
  SMM is a member of the Japan Mining Industry Association (JMIA), 
an organization of non-ferrous mining, smelting and refining compa-
nies, and we are participating in the Carbon Neutrality Action Plan  
being led by the Japan Business Federation (Keidanren).
  We will continue to proactively engage in thorough energy man-
agement, the promotion of energy-saving activities, the introduction 
of renewable energy, the use of unutilized heat, and other endeavors 
with the aim of reducing  energy intensity by an average of at least 
1% per year and further lowering CO2 emissions over the medium to 
long term.
* Energy intensity and CO2 emissions intensity index: The amount of energy con-
sumed and CO2 emitted during the production of 1 ton of product, assuming the 
base year FY1990 value to be 1.
2021
2020
2019
2018
2017
1990
(FY)
0.6
1.1
1.0
0.9
0.8
0.7
1.00
0.65
0.66
0.70
0.65
0.65
1.00
0.64
0.65
0.67
0.63
0.64
 Energy intensity index   
 CO2 emissions intensity index
GHG Emissions (Scope 1 + 2)  
Energy intensity and CO2 Emissions intensity Index*  (Scope: Smelting & Refining Business in Japan)  
Breakdown of GHG Emissions (FY2021)
3
4
SUMITOMO METAL MINING CO., LTD.     ESG Data Book 2022

SUMITOMO METAL MINING CO., LTD.     ESG Data Book 2022

Material Flows within Business Activity (FY2021)
INPUT (Resources & Energy)  
OUTPUT (Products & Emissions)  
1. Does not include materials recycled within plants.
2. Calorific values for both Japan and overseas are calculated using coefficients conforming to the Japanese Act on the Rational Use, etc. of Energy for fuel, heat, electricity, etc. that 
were consumed in business activities both in Japan and overseas. Fuels used as reducing agents are also included. Energy value indicates the energy input in the case of purchased 
electricity and purchased steam, and calorific value for all others.
3. The consumption and the energy value of purchased steam are indicated by subtracting the amount sold from the amount purchased.
4. SMM uses the WWF Water Risk Filter to determine regions with high water stress. As a result of this, there are no areas of high water stress at SMM Group’s production sites.
5. The total water consumption is estimated by subtracting the total amount of water discharged from the total amount of water withdrawn.
Energy2
Consumption
Energy Value
Non-renewable sources
Heavy oil
48,850kL
1,998TJ
Coal/coke
505,241t
13,048TJ
Diesel/gasoline/kerosene
19,656kL
737TJ
LPG/LNG
8,792t
447TJ
City gas
8,531ML
384TJ
Purchased electricity
1,435,260MWh
13,963TJ
Purchased steam3
− 256GJ
0TJ
Sub-total
30,577TJ
Renewable sources
Solar power generation,  
binary power generation
503MWh
5TJ
Wood pellets
172t
3TJ
Biomass steam
64,997GJ
66TJ
Total energy consumption
−
30,651TJ
Water4
Total volume of fresh water withdrawn
35,970ML 
Surface water (rivers)
13,954ML 
Rainwater
53ML
Groundwater
7,108ML
Industrial water (water from another organization)
14,437ML
Tap water (water from another organization)
417ML
Volume of seawater withdrawn
145,301ML
Total volume of water consumed from  
all areas5
4,917ML
Raw Materials
Recycled Materials1
Materials
Gold and silver ore
190kt
Copper scrap
124kt
Silica sand (for copper smelting)
89kt 
Copper concentrates
1,287kt 
Secondary zinc
12kt
Chemicals (lime-based)
1,114kt 
Nickel oxide ore
7,998kt 
Secondary precious metals
6kt 
Chemicals (sodium-based)
108kt 
Nickel matte, etc.
39kt 
Electric arc furnace dust
97kt 
Chemicals (magnesium-based)
13kt
Raw material for batteries
92kt 
ALC waste
111t 
Sulfuric acid
472kt 
ALC raw material, incl. silica 
rock
153kt
Percentage of recycled input  
raw materials used
2.38%
Cement, etc.
93kt 
Hydrotreating catalyst raw 
material
49kt
1. The percentage of products from recycled input increased because chromite was newly added to products.
2. Direct emissions for both Japan and overseas are calculated using emission factors conforming to the Japanese Act on Promotion of Global Warming Countermeasures. This 
includes non-energy-derived GHG emissions (349 kt-CO2e) that are outside the scope of the law. GHGs from wood pellets are not included.
3. The amount of GHG emissions from electric power purchased in Japan is calculated according to the market-based method using the emission factors of electric suppliers. For 
overseas emission factors, we used the latest emission factors for each country as published by the IEA. The amount of indirect emissions was 699 kt-CO2e when calculated for both 
Japan and overseas with the location-based method using IEA country-specific emission factors.
4. Discharges into rivers flowing into enclosed seas are included as “discharges into seas.”
5. Total transfers to sewerage and off-site transfers.
Products
Electrolytic copper
419kt
Gold
17t
Silver
231t
Electrolytic nickel
52kt 
Nickel sulfate
13kt
Electrolytic cobalt
4kt 
Crude zinc oxide
40kt 
Chromite1
52kt 
Ferronickel
61kt
Battery materials
62kt 
Sulfuric acid 
373kt 
Slag
1,325kt 
Hydrotreating 
catalysts
8kt
ALC (Siporex)
310ML 
Percentage of products  
from recycled input
6.96%
Emissions into the Atmosphere
CO2
2,647kt
Scope 1  
(direct emissions)2
1,786kt
(Decrease of 91 kt 
compared to the  
previous fiscal year)
Scope 2  
(indirect emissions)3
861kt
(Decrease of 22 kt 
compared to the  
previous fiscal year)
SOx
1,739t 
NOx
1,352t 
Soot and dust
84t
PRTR substances
9t
Emissions into Water
Total wastewater
176,781ML
Discharges into seas4
175,753ML
Discharges into rivers
974ML
Sewerage, etc.
55ML
COD (chemical oxygen demand)
48t 
BOD (biochemical oxygen demand)
12t 
Total phosphorus
1t
Total nitrogen
73t
PRTR substances (discharged into pub-
lic water areas)
67t
PRTR substances (discharged into the 
soil or in landfills within business premises)
2t
Waste (including Items of Value)
Total waste
6,124kt
Landfill on company 
premises
6,039kt
PRTR substances5
1,957t
Breakdown of total waste
Spoil
12kt 
Leach sludge from 
CBNC, THPAL, etc.
6,027kt 
Industrial waste (Japan) 
84kt 
Other
1kt 
5
6
SUMITOMO METAL MINING CO., LTD.     ESG Data Book 2022
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SUMITOMO METAL MINING CO., LTD.     ESG Data Book 2022
 Significant Environmental Accidents / Biodiversity

Emissions into the Atmosphere
Emissions into Water
 Toyo Smelter & Refinery     Niihama Nickel Refinery     Shisaka Smelting Co., Ltd.     Harima Refinery     Hyuga Smelting Co., Ltd.     CBNC 
 THPAL     Other
SOx emissions during FY2021 were level, increasing by about 0.4% year on year. NOx emissions decreased by about 6% year on year. At CBNC, emis-
sions decreased by about 47 tons due to improved combustion conditions in the boiler. Soot and dust emissions increased about 4% year on year.
Each emissions figure was calculated based on the measurement of flue gas.
2021
2020
2019
2018
(t)
0
2,000
1,500
1,000
500
1,608
1,376
1,733
1,739
(FY)
2021
2020
2019
2018
(t)
0
2,000
1,500
1,000
500
(FY)
1,423
1,271
1,444
1,352
2021
2020
2019
2018
(t)
0
140
120
100
80
60
40
20
(FY)
105
95
80
84
SOx Emissions  
NOx Emissions  
Soot and Dust Emissions  
 Toyo Smelter & Refinery     Niihama Nickel Refinery     Shisaka Smelting Co., Ltd.     Harima Refinery     Hyuga Smelting Co., Ltd.     CBNC 
 THPAL     All mining operations     All other operations
The COD1 pollutant load in FY2021 decreased by about 3% year on year. The BOD2 pollutant load decreased about 22% year on year. Many SMM 
Group business sites face onto Japan’s Seto Inland Sea and are subject to controls on the total amounts of COD, nitrogen and phosphorous emis-
sions under the Act on Special Measures Concerning Conservation of the Environment of the Seto Inland Sea.
  The volume of freshwater usage increased by about 2% year on year to about 36 million m3. In this calculation, diversion water,3 which is unrelat-
ed to production, is excluded from withdrawal and release at mines. The volume of seawater usage decreased by about 12% year on year. This was 
attributable to a decrease in production volumes at the Toyo Smelter & Refinery.
1. COD (Chemical Oxygen Demand): Measured for emissions into seas, including emissions into rivers flowing into enclosed seas.
2. BOD (Biochemical Oxygen Demand): Measured for emissions into rivers, excluding emissions flowing into enclosed seas.
3. Diversion water: Water that flows into the site as an input and flows out of the site as an output without being used for production purposes. Included starting with data for FY2017.
(t)
0
70
60
50
40
30
20
10
(FY)
COD
56
55
49
48
BOD
15
13
15
12
2021
2020
2019
2018
2021
2020
2019
2018
0
50
40
30
20
10
(million m3)
(FY)
35.7
36.9
35.2
36.0
2021
2020
2019
2018
(million m3)
0
200
150
100
50
(FY)
157
143
165
145
COD and BOD Pollutant Loads  
Freshwater Withdrawal Volume  
Seawater Withdrawal Volume  
An overview of releases and transfers of chemical substances based 
on Japan’s Pollutant Release and Transfer Register (PRTR) system in 
FY2021 is as follows.
  The number of data-submitting sites in the SMM Group was 24 (23 
in FY2020). The Group had 42 (40 in FY2020) substances requiring 
registration.
  The total released and transferred amount (releases + transfers) 
came to 2,035t, an increase of about 7% year on year, mainly due to 
an increase in transfers. The increase in transfers was due to an 
increase in the volume of iron clinker* to undergo final disposal as 
industrial waste after being generated as a by-product at Shisaka 
Smelting Co., Ltd. and a reduction in the volume of manganese trans-
fered off-site.
  The amount discharged into the atmosphere increased by about 
2%. There were no discharges of ozone-depleting substances. Dis-
charges into water decreased by about 9% year on year.
* Iron clinker: The residue remaining during the processing of electric arc furnace 
dust after recovering zinc. The residue able to be sold is called “iron contained pel-
let,” and the residue to be disposed of is called “iron clinker.”
Breakdown of Transfers
Other
Cadmium and 
its compounds
Nickel 
compounds
Arsenic and its 
inorganic compounds
Manganese and 
its compounds
0
(t)
2,000
1,500
1,000
500
1700
51
44
39
123
 FY2019     FY2020     FY2021
Breakdown of Releases, by Destination  
2021
2020
2019
2018
(FY)
0
(t)
120
100
80
60
40
20
100
97
85
78
19
15
9
9
77
79
74
67
1
1
2
1
3
3
1
1
 Landfill (SMM premises)      Soil     Water     Atmosphere
Release and Transfer of PRTR Substances  
2021
2020
2019
2018
(t)
0
3,000
2,500
2,000
1,500
1,000
500
(FY)
2,770
2,217
1,907
2,035
100
97
85
78
2,670
2,120
1,822
1,957
 Transfer     Release
Breakdown of Releases into Water
Other
Zinc compounds 
(water-soluble)
Nickel 
compounds
Hydrogen ﬂuoride and 
its watersoluble salts
Boron 
compounds
0
(t)
80
60
40
20
56.1
6.6
1.9
0.5
1.7
 FY2019     FY2020     FY2021
Breakdown of Releases into the Atmosphere
Other
Nickel 
compounds
Methyl
naphthalene
Toluene
Dichloromethane 
(methylene chloride)
0
(t)
8
6
4
2
4.4
2.3
0.9
0.3
0.9
 FY2019     FY2020     FY2021
Release Control for Chemical Substances
7
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SUMITOMO METAL MINING CO., LTD.     ESG Data Book 2022
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SUMITOMO METAL MINING CO., LTD.     ESG Data Book 2022

Final Disposal Amount1 of  
Industrial and Mining Waste in Japan  
Waste by Treatment Method (Hazardous3/Non-hazardous4)  
Breakdown of Industrial Waste (in Japan) by Type of Waste
The SMM Group has long been making efforts to reduce industrial 
waste in Japan and the amount of wastewater sludge (mining waste) 
that undergoes final disposal from the mine-affiliated Toyo Smelter & 
Refinery. The total final disposal amount in FY2021 was 60kt, which 
was an increase of about 9kt from FY2020. The main factor behind 
this increase was an increase in the final disposal volume of iron clin-
ker at Shisaka Smelting Co., Ltd.
Final Disposal Amount of Industrial and Mining Waste in Japan
Waste by Type and Treatment Method (FY2021)
2021
2020
2019
2018
0
(FY)
(kt)
100
80
60
40
20
86
71
51
60
1
1
1
1
85
70
50
59
Other waste  10.0%
Sludge  2.4%
Waste plastic  3.4%
Scrap metal  3.2%
Hazardous sludge  7.9%
 Industrial waste     Mining waste2
1. Includes waste destined for landfills and incineration without heat recovery.
2. Mining waste in the form of wastewater sludge generated by mine-affiliated Toyo 
Smelter & Refinery that is landfilled within the business site.
(kt)
Total
Hazardous
Non-hazardous
Treatment 
method5
Recycling
23.6
7.4
16.1
Incineration  
(With heat recovery)6
1.6
0.3
1.3
Incineration  
(Without heat recovery)6
0.4
0.0
0.4
Landfill
6,095.6
55.2
6,040.5
Volume reduction, etc.
2.6
1.3
1.3
Total
6,123.8
64.3
6,059.5
3. In general, this depends upon definitions of the regulations in the other releasing countries concerned. Since Japan does not have such laws or regulations, SMM applies the follow-
ing definition: “Specially controlled industrial waste and waste delivered to controlled landfill sites (excluding designated inert waste (5 categories of inert waste) that should have 
been delivered to landfill sites for inert industrial waste, but was disposed of at controlled landfill sites due to the distance limitation).”
4. Waste other than hazardous waste.
5. Treatment methods outside of the Company were identified based on the written agreement with the disposal company and the manifest.
6. From this fiscal year incineration is classified into two categories: with heat recovery and without heat recovery, and the hazardous category of incineration (without heat recovery) 
is 0.04 thousand tons. To unify digits, it is shown as zero.
Directly controlled business sites
Group
Amount (t)
Details (%)
Amount (t)
Details (%)
Recycling
648 
34 
977 
34 
Recycling (Heat recovery)
641 
34 
885 
31
Unused
Incineration  
(Without heat recovery)
277 
32
282 
35 
Landfill
316 
728 
Total waste
1,882 
100 
2,873 
100 
(kt)
Landfill on company premises/
Contracted disposal
Landfill on company 
premises
6,039 
Contracted disposal
85 
Total waste
84kt
Slag  73.0%
The SMM Group has established two e-learning 
courses on environmental laws with the objective of 
raising levels of compliance. Employees, especially 
managers and supervisors, involved with environ-
mental laws and regulations, and internal environ-
mental auditors, are taking part in those courses. The 
e-learning course on Japan’s main environmental 
laws covers ten laws that are deeply related to the 
businesses of the SMM Group and provides explana-
tions of mandatory standards and notification proce-
dures. As failing to comply with these requirements 
constitutes a violation of the law, employees must be 
certain to keep them in mind when conducting busi-
ness. Given not only compliance with regulations 
and obligations, but also the voluntary risk manage-
ment and information disclosure demanded of busi-
nesses today, the Group offers an e-learning course 
called Environmental Laws, Basic that serves as a 
stepping stone for properly conducting business. 
This course covers 12 laws, including the Basic Envi-
ronment Act and the Basic Act on Biodiversity.
Recycling of material and recycling, 
etc. (heat recovery) accounted for 
about 70% at directly controlled busi-
ness sites and about 65% for the SMM 
Group as a whole. We will work to fur-
ther reduce emissions and promote 
recycling.
Environmental Education
Laws Covered in the Environmental e-learning Courses
Emissions of Waste Plastic (FY2021)
Name of activity
Targeted employees
Purpose, contents (simple overview)
EMS Internal Auditor Training Course
New internal environmental auditors
Training of new internal auditors for the EMS conforming to ISO 14001 (2015)
EMS Internal Auditor Course for updating 
to the ISO 14001 (2015) standard
Internal environmental auditors
Updating internal auditors with qualifications conforming to ISO 14001 (2004) 
to the 2015 version
Environmental e-learning (Environmental Laws)
Managers and supervisors, internal envi-
ronmental auditors
Explanation of Japan’s mandatory standards and notification procedures
Environmental e-learning (Environmental Laws, 
Basic)
Managers and supervisors, internal envi-
ronmental auditors
Promote understanding of the spirit and idea of Japan’s laws
Education of newly-appointed business 
site general managers
Newly-appointed business site general 
managers
Promote understanding of the importance of the relationship between cor-
porations and the environment and raise self-awareness and environmental 
awareness as the business site general manager
Conference for environment managers
Environment managers of each of the 
business sites
Improve knowledge of Japan’s environmental laws and regulations, enhance 
environmental management capabilities, raise self-awareness
Periodically send out information
Business site general managers
Provide information about revisions of laws and important precedents by a 
periodical e-mail magazine
Education about environmental preserva-
tion for mid-career hires
Mid-career hires at the Head Office
Impart knowledge about the SMM Group’s environmental preservation initia-
tives and raise self-awareness
Education about environmental preserva-
tion for new employees
Newly-hired management track employ-
ees at the Head Office
Impart knowledge about the SMM Group’s environmental preservation initia-
tives and raise self-awareness
Education about environmental preserva-
tion for newly-promoted section 
managers
Newly-promoted section managers
Provide information about the SMM Group’s environmental preservation ini-
tiatives and raise self-awareness
Periodic education about the Chemical 
Substances Control Law
Division environment managers
Check the outline of Act on the Regulation of Manufacture and Evaluation of 
Chemical Substances and information on revisions, prevent omissions of 
notification, and raise self-awareness
Explanatory meeting: overseas chemical 
substance regulations
Head Office sales representatives
Impart knowledge to sales representatives about overseas chemical sub-
stance regulations and raise their self-awareness
Environmental 
Laws
Environmental 
Laws, Basic
Basic Environment Act
Basic Environment Act
  −
Basic Act on 
Biodiversity
Basic Act on Establish-
ing a Sound Materi-
al-Cycle Society
Basic Act on Establish-
ing a Sound Materi-
al-Cycle Society
  −
Act on the Promotion 
of Environmental 
Conservation Activi-
ties through Environ-
mental Education
  −
Law Concerning the 
Promotion of Business 
Activities with Envi-
ronmental 
Consideration
  −
Act on Promotion of 
Global Warming 
Countermeasures
Act on the Rational Use 
of Energy
Act on the Rational Use 
of Energy
Environmental 
Laws
Environmental 
Laws, Basic
Air Pollution Control 
Act (including the content of 
the Act on Pollution Prevention 
Systems in Specified Factories)
Air Pollution Control 
Act
Water Pollution Con-
trol Act
Water Pollution Con-
trol Act
Soil Contamination 
Countermeasures Act
  −
PRTR Law
PRTR Law
Poisonous and Dele-
terious Substances 
Control Act
  −
Waste Management 
and Public Cleansing 
Act
Waste Management 
and Public Cleansing 
Act
PCB Special Measures 
Law
  −
  −
Act on Promoting 
Green Procurement
9
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SUMITOMO METAL MINING CO., LTD.     ESG Data Book 2022
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SUMITOMO METAL MINING CO., LTD.     ESG Data Book 2022

Area 
Size of production site 
(hectares)
Details
Seto Inland Sea
62 
(Minoshima & Ienoshima islands)
Shisaka Smelting Co., Ltd. operates on Minoshima and Ienoshima 
islands, neighboring Setonaikai National Park (neighboring areas equivalent 
to IUCN Category 2)
The Philippines
583
Coral Bay Nickel Corporation operates on Palawan Island  (in hunt-
ing-prohibited and bird protection areas equivalent to IUCN Category 4)
Currently, there are no projects in any region requiring the preparation of a management plan.
Business Activities in Areas of High Biodiversity Value1 (FY2021)
1. Protected areas classified as Category 4 
and above by the International Union 
for Conservation of Nature (IUCN) and 
neighboring areas, as well as equiva-
lent areas of high biodiversity value 
(SMM research). Areas classified as Cat-
egory 1 are of highest priority.
(hectares)
A: Total area of land not rehabil-
itated (as of the end of FY2020)
B: Area of land newly 
developed in FY2021
C: Area of land newly reha-
bilitated in FY2021
D: Total area of land developed 
but not rehabilitated (A+B-C)
Hishikari Mine Dept.
22
0
0
22
Coral Bay Nickel 
Corporation
4211
0
42
417
Taganito HPAL Nickel 
Corporation
568
0
13
567
1. Historical figures were reviewed and adjustments were made to prior periods. 
2. In addition to the rehabilitated area within the development site mentioned above, CBNC cooperated with the Philippine government, and proceeded with the rehabilitation of an 
additional 35 hectares in nearby regions outside the development site in FY2021, bringing the total certified rehabilitated area to 126 hectares (including bamboo groves) to date.
3. In addition to the rehabilitated area within the development site mentioned above, THPAL cooperated with the Philippine government, and proceeded with the rehabilitation of an 
additional 86 hectares in nearby regions outside the development site in FY2021, bringing the total certified rehabilitated area to 541 hectares to date.
Amount of Land Developed or Rehabilitated (FY2021)  
Work-Related Incidents (2021)
“Employees” includes employees and part-time workers from Group companies
Japan 
Overseas
Employees 
Non-employee workers
Employees 
Non-employee workers
Number of work-related fatalities and fre-
quency rate (Calculated per 1,000,000 
hours, same applies below)  
1
0.07
1
0.50
0
0 
0
0 
Number of work-related injuries resulting in 
disability and frequency rate  
0
0 
0
0 
0
0 
0
0 
Number of recordable work-related injuries 
and frequency rate1  
20
1.48
8
3.99
1
0.35
7
0.58
Main types of work-related incidents
Getting caught between objects, getting tangled in 
objects, lacerations, contact with harmful substances, 
contact with high- or low-temperature objects, results of 
movements or unreasonable actions, stumbles, impact 
injuries, falling objects
Getting caught between objects, contact with harm-
ful substances, lacerations, stumbles, falling objects
Cumulative hours worked
13,528,961 hours
2,004,000 hours2,3
2,870,000 hours2
11,980,000 hours2,3
Number of potential incidents4
26
7
0
2
Sources of work-related hazards that lead 
to disability, and method of determination
1) Heavy loads, 2) chemicals, 3) high-temperature 
objects, 4) rotating objects, 5) electricity, 6) high places, 
7) heavy machinery, 8) cylinders, 9) hand tools  
Sources have been classified based on analysis into dam-
age caused by incidents in the past.
1) Heavy loads, 2) chemicals, 3) high-temperature 
objects, 4) rotating objects, 5) electricity, 6) high plac-
es, 7) heavy machinery, 8) cylinders, 9) hand tools 
Applied based on the results of analysis of incidents 
in Japan
Incidents leading to disabilities and resulting 
from sources of work-related hazards, and 
actions taken or underway to eliminate these 
hazards using the hierarchy of controls5
Employees
• Heavy machinery (resulting in death): Install drive recorders 
and proximity detection systems. Increased separation 
of pedestrians and vehicles.
• Electricity (not resulting in absence from work): Revised power 
failure operating procedures. Enhanced protection 
against getting electrical shocks.
• Cylinders (resulting in absence from work): Added dual-switch-
ing of the roll down button.
• High places (resulting in absence from work): Improved the 
structure of the lifting points. Installed non-slip surfaces. 
Clarified 3-point support points.
• Chemicals (resulting in absence from work): Changed to a 
method that does not directly handle chemical pow-
der. Reinforced anti-aggravation measures.
Contractors
• High places (resulting in death): Strengthened verification 
and management of qualified personnel. Installed peo-
ple to act as emergency response monitors.
Contractors
• High places (resulting in absence from work): Made it a rule 
to install lifting equipment to raise and lower the 
cargo bed.
Incidents resulting from other sources of 
workplace hazards and actions taken or 
underway to eliminate these hazards using 
the hierarchy of controls5
N/A
N/A
1. “Recordable work-related injuries” is the total of injuries that required hospital treatment and resulted in absence from work and injuries not resulting in absence from work.
2. Estimated based on one person working 2,000 hours per year.
3. Total working hours of workers other than employees (those working at regular contractors) based survey numbers from May 2022. Calculated based on note 4 above.
4. The number of minor incidents (visited the hospital but no treatment needed).
5. Hierarchy of controls: An approach for lowering risk to acceptable levels through prioritization as follows: Elimination of source of risk  Substitution of source of risk  Engineer-
ing controls  Administrative controls  Personal protective equipment 
Source: The US National Institute for Occupational Safety and Health (NIOSH)
11
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SUMITOMO METAL MINING CO., LTD.     ESG Data Book 2022
 Employees’ Occupational Health and Safety

Occupational Health and Safety Management System (2021)
(SMM Group companies)
Japan Business Sites
Overseas Business Sites
Ratio
Number of employees1
Ratio
Number of employees1
Workers covered by an Occupational Health 
and Safety Management System
100%2
7,0083
100%2
1,4523
Workers covered by an Occupational Health 
and Safety Management System subject to 
internal audits4
100%
7,008
100%
1,452
Workers covered by an Occupational Health 
and Safety Management System subject to 
third party audits and certification
28%
1,964
7%
99
Japan
Overseas
Business sites with third party certification
Certified business sites acquisition rate: 19% 
ISO 45001: Nippon Ketjen Co., Ltd.; Hishikari Mine; 
Hishikari Office, Mining Dept., Sumiko Resources 
Exploration & Development Co., Ltd.; Niihama Nickel 
Refinery; Toyo Smelter & Refinery
JISHA method OSHMS: Numazu Office and Tsukuba 
Office of N.E. Chemcat Corporation; Shinko Co., Ltd.; 
Ome District Division
Certified business sites acquisition rate: 60% 
Safety and production standardization (State Administration 
of Work Safety): Dongguan Sumiko Electronic Paste Co., Ltd.
Safety and production standardization (State Administration 
of Work Safety): Shanghai Sumiko Electronic Paste Co., Ltd.
Third party audit implemented by the Ministry of 
Labor: Taiwan Sumiko Materials Co., Ltd.
Identification of Hazard Sources, Risk Assessment, and Accident Investigation (2021)
(SMM Group companies)
Japan Business Sites
Overseas Business Sites
Ongoing improvements to risk assess-
ment (RA) process quality assurance and 
management systems
RA has been introduced and we continuously make 
improvements in regard to risk at business sites. The effec-
tiveness of whether they contribute to preventing serious 
accidents is reviewed as appropriate under the leadership 
of the Safety & Environment Control Department.
RA is being introduced and we continuously make 
improvements in regard to risk at business sites. The 
effectiveness of these is reviewed as appropriate.
Processes for employees to report haz-
ards and employee protection methods
We receive reports of hazards from employees through 
minor incident reports, morning meetings, informal dis-
cussions, etc., and take necessary measures.
We receive reports of hazards from employees through 
minor incident report forms, oral reports, etc. and take 
necessary measures.
Methods for protecting employees carrying 
out work that might lead to illness or injury
In addition to RA, we reduce risk through methods 
including various patrols, work observation, hazard pre-
diction training, and mutual attention.
In addition to RA and hazard prediction activities, we 
reduce risk through methods including patrols.
Accident investigation and countermea-
sures and system improvement processes
When accidents occur, we consider and deal with each 
case through the accident reporting database which stip-
ulates a process that includes, investigating the character-
istics of the hazard source and any background factors, 
and formulating countermeasures. Measures tackling the 
hazard source are handled according to the hierarchy of 
controls (in the same way as RA, etc.), which prioritizes 
measures targeting equipment.
Investigations and countermeasures are implemented 
in accordance with systems at each business site 
including case studies and horizontal development. 
Measures tackling the hazard source are handled 
according to the hierarchy of controls, which prioritizes 
measures targeting equipment.
(Regular contractors)
Japan Business Sites
Overseas Business Sites
Ongoing improvements to risk assess-
ment (RA) process quality assurance and 
management systems
A similar in-house process as the contracting organization 
is used. (In some cases, using the contracting organization’s process.)
At Coral Bay Nickel Corporation, some contractors are 
introducing RA initiatives such as 10-second employee 
hazard prediction, and at Taganito HPAL Nickel Corpora-
tion, some are introducing RA.
Processes for employees to report haz-
ards and employee protection methods
A framework is in place to ensure implementation of 
necessary measures and provide reports in areas such 
as minor incident and points on which to take note.
A framework is in place so that if either the contracting 
organization or contractor discovers information such 
as minor incident, they will contact each other.
Methods for protecting employees carrying 
out work that might lead to illness or injury
In addition to RA, various patrols are implemented by 
the contracting organization and measures are taken as 
necessary.
Measures implemented center on hazard prediction 
activities. Measures such as patrols by the contracting 
organization are also implemented.
Accident investigation and countermea-
sures and system improvement processes
A similar process as the contracting organization is 
used. (Also using the accident reporting database of the contracting 
organization.)
Either checks are made by the contracting organization 
following consideration of the case by the contractor, or 
the contracting organization works with the contractor 
to implement an investigation, counter measures, and 
improvements. Measures tackling the hazard source are 
handled according to the hierarchy of controls, which 
prioritizes measures targeting equipment.
In order to prevent accidents and illness caused by unsafe circumstances 
and behavior, we are advancing occupational health and safety measures 
at each Group business site based on the concept of hierarchy of controls.1 
In Japan, we are building an occupational health and safety management 
framework as stipulated by the Japanese Industrial Safety and Health Act, 
and are formulating policies, targets, and plans. We are also implementing a 
one-year PDCA cycle and each level of the Company is working to reduce 
risk in accordance with their role. The business division with jurisdiction and 
the Safety & Environment Control Department are implementing internal 
audits at all business sites, patrolling each one, and we are advancing activi-
ties based on the Ministry of Health, Labour and Welfare’s Occupational 
Safety and Health Management System (OSHMS)2 guidelines.
1. Hierarchy of controls: An approach for lowering risk to acceptable levels through pri-
oritization as follows: Elimination of source of risk  Substitution of source of risk  
Engineering controls  Administrative controls  Personal protective equipment 
Source: The US National Institute for Occupational Safety and Health (NIOSH)
2. OSHMS is an abbreviation of Occupational Safety and Health Management System and it 
is a management system that aims to improve occupational health and safety levels at 
business sites through the implementation of a set of processes known as the PDCA cycle 
(Plan, Do, Check, Act), based on cooperation between businesses and their workers.
(Regular contractors)
Japan Business Sites
Overseas Business Sites
Ratio
Number of employees1
Ratio
Number of employees1
Workers covered by an Occupational Health 
and Safety Management System
100%2
1,002
100%2
5,990
Workers covered by an Occupational Health 
and Safety Management System subject to 
internal audits5
100%
1,002
100%
5,990
Workers covered by an Occupational Health 
and Safety Management System subject to 
third party audits and certification
2%
21
0%
0
Japan
Overseas
Business sites with third party certification
Certification acquired by one contractor of Hyuga 
Smelting Co., Ltd. (JISHA method OSHMS)
None
1. Includes temporary employees covered by SMM Group occupational health and safety administration.
2. Japan: We have built an occupational health and safety management framework as stipulated by the Japanese Industrial Safety and Health Act, formulated policies, targets, and 
plans, and implemented a one-year PDCA cycle. Activities are carried out for each level of the organization and cover 100% of employees. 
Overseas: We have built the system in accordance with the occupational health and safety laws and regulations of each country.
3. Workers at business sites covered by safety statistics.
4. Japan: Internal audits are implemented at each business site in turn by the business division with jurisdiction, the Safety & Environment Control Department, the Besshi-Niihama 
District Division Safety & Environment Control Center (Besshi District), or other organizations. The audits confirm each business site’s policy, targets, activity plan, and implementa-
tion status and ensure a PDCA cycle is being carried out. 
Overseas: The business division with jurisdiction carries out audits around twice a year in the form of patrols. Dongguan Sumiko Electronic Paste Co., Ltd. carries out an internal audit 
each year.
5. Japan: While there are cases where some small contractors do not implement checks on the level of internal audits, contracting organizations offer guidance on occupational 
health and safety and carry out various patrols, and other measures, and the majority do implement checks on the level of internal audits. 
Overseas: At Coral Bay Nickel Corporation, internal audits take the form of patrols and contractor safety meetings led by the contracting organization. At Taganito HPAL, contractors 
implement internal audits or participate in patrols led by Taganito HPAL.
Work-Related Ill Health (2021)
“Employees” includes employees and part-time workers from Group companies
Japan
Overseas
Employees 
Non-employee workers
Employees 
Non-employee workers
Number of fatalities as a result of 
work-related ill health
0
0
0
0
Number of cases of recordable  
work-related ill health1
0
0
0
0
Main types of work-related ill health 
and method of determination
As stated in the Japanese occupational health and safety 
laws and regulations
• Pneumoconiosis
• Ionizing radiation injury
• Organic solvent poisoning
• Damage caused by specified chemical substances (occupa-
tional cancer, skin damage, etc.)
• Lead poisoning
• Vibration-induced damage
• Noise-induced hearing loss
• Occupational dental problems (dental erosion, etc.)
As set forth in the Occupational Safety and Health Stan-
dards of the Philippines
• Occupational cancer • Hearing loss • Dermatitis • Ionizing 
radiation injury • Poisoning and sequelae due to chemical 
substances • Pneumoconiosis • Pneumonia • Vibration-in-
duced damage • Malaria • Asbestos-related diseases, etc.
As set forth in the Law of the People’s Republic of China on 
the Prevention and Control of Occupational Diseases
• Pneumoconiosis and other respiratory diseases • Dermatitis  
• Hearing loss • Vibration-induced damage • Dental erosion • 
Chemical poisoning • Radiation injury • Occupational cancer, etc.
As set forth in the Occupational Safety and Health Act (Tai-
wan) Labor Insurance Act
• Pneumoconiosis • Ionizing radiation injury • Hearing loss • Vibra-
tion-induced damage • Dental erosion • Dermatitis • Poisoning 
and sequelae due to chemical substances (organic solvent poisoning, etc.)
Sources of work-related hazards that 
lead to work-related ill health
• Dust • Ionizing radiation • Organic solvents • Specified 
chemical substances • Lead • Vibrating tools • Noise • Sub-
stances that erode the teeth (acids)
• Dust • Ionizing radiation • Chemical substances (organic 
solvents, etc) • Lead • Vibrating tools • Noise • Substances 
that erode the teeth (acids), etc.
Incidents resulting from sources of 
work-related hazards leading to 
work-related ill health and actions 
taken or underway to eliminate these 
hazards using the hierarchy of controls2
• No work-related ill health occurred that required treatment
• Implementing improvements to working environments at 
business sites, with Control Class 3 workplaces as a priority
• Using a risk assessment database of chemical substances 
to prevent illness
No work-related ill health occurred that required treatment
1. Regarding employees in Japan, we also record the number of workers who receive abnormal findings but do not require treatment (as this is personal information, it is not disclosed).
2. Hierarchy of controls: An approach for lowering risk to acceptable levels through prioritization as follows: Elimination of source of risk  Substitution of source of risk  Engineer-
ing controls  Administrative controls  Personal protective equipment 
Source: The US National Institute for Occupational Safety and Health (NIOSH)
13
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SUMITOMO METAL MINING CO., LTD.     ESG Data Book 2022

Provision of Occupational Health and Safety Services (2021)
Japan Business Sites
Overseas Business Sites
Hazard simulations
An experience simulating a hazardous situation. Repeated 
training is being held based on actual conditions at busi-
ness sites. Employees from contractor companies partici-
pate in this training. We also cultivate instructors.
Once a year a total of about 15 employees from Coral Bay 
Nickel Corporation, and Taganito HPAL Nickel Corporation 
receive hazard simulation training in Japan. However, this 
was cancelled in FY2021 due to the COVID-19 pandemic.
Anzen Dojo
Up to 2018, Anzen Dojo training was held at each business 
site (on topics such as mechanisms that lead to incidents) 
and contributed to activities at these business sites such as 
education.
At Coral Bay Nickel Corporation, and Taganito HPAL Nickel 
Corporation, Japanese employees receive safety training 
that incorporates Anzen Dojo content twice a year when 
the relevant business division implements safety patrols. 
There was no training during safety patrols in FY2021.
An organizational structure and regula-
tions, including safety managers, quali-
fied personnel, and training plan
Required by Japanese laws and regulations. Managed by 
each business site.
A person responsible for health-related matters is 
employed in accordance with the occupational health and 
safety laws and regulations of each country.
A working environment management 
framework
Required by Japanese laws and regulations. Managed by 
each business site.
Required by the occupational health and safety laws and 
regulations of each country.
Medical examinations (general, specific, special-
ized), radiation exposure management, 
action on results of health checkups, and 
an health guidance framework
Required by Japanese laws and regulations. Managed by 
each business site.
All employees receive regular medical examinations (once 
a year).
Mental health-related checkups, 
consultations
Required by Japanese laws and regulations. Managed by 
each business site.
Japanese employees use systems provided by SMM.
Industrial doctors, health advisors, nurses, 
etc. (including health consultations)
Implemented in accordance with the Japanese Industrial 
Safety and Health Act or agreements are arranged with indus-
trial doctors accordingly. Managed by each business site.
At Coral Bay Nickel Corporation, and Taganito HPAL Nickel 
Corporation, industrial doctors are commissioned in accor-
dance with Japanese laws and regulations.
Internal workshops, small group activities
Small group activities are held for all employees for pur-
poses such as improving communication or enhancing 
hazard awareness through education and the sharing of 
disaster case studies, which may include the incorporation 
of content from Anzen Dojo.
Initiatives are implemented accordingly by each business site.
Lectures from external instructors (life-sav-
ing and first aid, traffic accident prevention, etc.)
Red Cross first aid courses, life-saving courses by the fire 
department, traffic safety training by the police, etc. Man-
aged by each business site.
Employees are sent out to first aid, health and safety, and 
other seminars.
Emergency rooms and equipment (life-sav-
ing and first aid, including AEDs, measures for pandemics or 
infectious diseases, etc.), an emergency contact 
network
There is also an emergency contact network covering the 
entire company. Managed by each business site.
Each business site implements measures such as the instal-
lation of emergency rooms, AED, and first-aid kits, and the 
maintenance of an emergency contact network.
Break rooms
Provided at business sites as needed, in line with policies 
related to measures to create a comfortable work environ-
ment. Considerations such as heat stroke are taken into 
account. Also, break rooms have been provided to ensure 
prevention of passive smoking.
Managed by each business site.
Dining halls (nutritionists)
Can be used by all employees at business sites where they 
are available.
Dining halls installed or made available at each business site.
Laundry rooms
Can be used by all employees at business sites where they 
are available.
Laundry rooms have been provided within Coral Bay Nick-
el Corporation and Taganito HPAL Nickel Corporation 
plants. At some business sites, the washing of work clothes 
is outsourced.
Bath/shower facilities
Can be used by all employees at business sites where they 
are available.
Installed at Coral Bay Nickel Corporation, and Taganito 
HPAL Nickel Corporation.
Company housing and dormitories
Can be used by all employees at business sites where they 
are available.
Provided at Coral Bay Nickel Corporation, and Taganito 
HPAL Nickel Corporation.
Suggestion boxes
Can be posted through the SMM bulletin board. Internal 
reporting phone lines are also available.
Managed by each business site.
Management of personal information
Required by Japanese laws and regulations.
Managed by each business site.
(Examples of other services provided)
Japan Business Sites
Overseas Business Sites
Tackling lifestyle-related disease and pro-
motion of health
Thorough medical checkups (health insurance union subsidies avail-
able), other. These are available to all employees. Health pro-
motion activities are also implemented at each business site.
Managed by each business site.
Medical and healthcare services not 
directly connected to operations
Mental health (external eMe) guidance for procuring medica-
tion, guidance regarding test kits (external organization).
At Coral Bay Nickel Corporation, and Taganito HPAL Nickel 
Corporation, we have installed on-site medical offices where 
treatment can be received free of charge. We also have a 
subsidy system covering visits to external medical facilities.
Voluntary health promotion services and 
programs provided to tackle major health 
risks not directly connected to operations
Workers have access to occupational health services and 
health guidance is provided by industrial doctors.
Individual programs are being implemented at Coral Bay 
Nickel Corporation, and Taganito HPAL Nickel Corporation.
Labor-Management Discussion Concerning Occupational Health and Safety  
(Status of Occupational Health and Safety Committees) (2021)
General Education and Training Regarding Occupational Health and Safety (2021)
Japan Business Sites
Overseas Business Sites
SMM Group companies
Occupational Health and Safety Committee meetings 
are held every month (with over half of representatives from the 
labor side at each business site in cases where said business site has more 
than 50 people, in accordance with stipulations in the Japanese Industrial 
Safety and Health Act). These provide opportunities to share 
information and hold discussions concerning occupa-
tional health and safety, while decision making is imple-
mented by the people with overall responsibility on the 
management side (top management), and PDCA cycles 
are implemented.
Meetings are held once a month at Coral Bay Nickel 
Corporation, and Taganito HPAL Nickel Corporation, 
while at other sites, meetings of bodies comprising 
both labor and management, such as Occupational 
Health and Safety Committees, are held every quarter. 
Management of progress toward safety management 
targets is implemented.
Regular contractors
Occupational Health and Safety Committee meetings 
and informal gatherings are held every month by con-
tracting organizations in which contractors and others 
participate and information is shared. This information is 
taken back to the company where it is shared and used 
to make notifications.
Coral Bay Nickel Corporation, and Taganito HPAL Nickel 
Corporation only: Contractor safety meetings are held 
once a month. Progress toward safety management tar-
gets by contractors is managed and information is 
shared.
Japan Business Sites
Overseas Business Sites
SMM Group companies
Education is provided as stipulated in the Japanese 
Industrial Safety and Health Act (new employee training, special 
education, training when starting hazardous or potentially harmful opera-
tions, etc.) and places for gaining qualifications are provid-
ed. Risk response training, such as accident response, is 
also provided.
Implemented and managed accordingly by each busi-
ness site.
Regular contractors
Education is provided as stipulated in the Japanese 
Industrial Safety and Health Act (new employee training, special 
education, training when starting hazardous or potentially harmful opera-
tions, etc.). Accident response and hazard simulation drills 
are also carried out at some business sites.
Coral Bay Nickel Corporation, and Taganito HPAL Nickel 
Corporation only: Education is provided during opera-
tion halts, etc.
Total Time Spent on Employee Education (FY2021)
(hours)
Officers
Managers
Regular employees
Occasional employees 
and temporary 
employees
Total
Male
Female
Male
Female
Male
Female
Male
Female
SMM non-consolidated
324
0
17,038
219
135,008
18,030
13,439
4,855
188,913
Consolidated subsidiaries in 
Japan
402
2
3,153
64
31,087
3,028
4,323
1,711
43,769
Consolidated subsidiaries 
overseas
264
25
562
321
12,985
4,095
47
23
18,322
Officers
Managers
Regular employees
Occasional employees 
and temporary 
employees
Total
Male
Female
Male
Female
Male
Female
Annual hours of education  
per SMM Group’s employee  
(average) 
9
0
22
6
37
21
20
30
Number of officers and 
employees at the end of the 
fiscal year
109 
0 
958 
103 
4,840 
1,193 
1,214
8,417
In addition to the total time spent on education, employees spent the following number of hours on e-learning courses: 9,450 hours for SMM non-consolidated, and 4,342 hours for 
consolidated subsidiaries in Japan and overseas.
 Diverse Human Resources /  
Development and Participation of Human Resources
15
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SUMITOMO METAL MINING CO., LTD.     ESG Data Book 2022
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SUMITOMO METAL MINING CO., LTD.     ESG Data Book 2022

New Hires and Departures (FY2021)
Location
Younger than 30 years old
30–49 years old
50 years old and older
Total
Male 
Female
Male 
Female
Male 
Female
Japan
New employees
196
42
87
11
15
2
353
New employees (%)
22.9
23.1
3.9
2.2
1.0
1.2
6.5
Departures
41
7
37
10
62
4
161
Turnover (%)
4.8
3.8
1.6
2.0
4.1
2.4
2.9
Total employees
855
182
2,253
507
1,504
170
5,471
U.S.A.
New employees
0
0
1
0
0
0
1
New employees (%)
0.0
0.0
20.0
0.0
0.0
0.0
7.7
Departures
0
0
0
0
1
0
1
Turnover (%)
0.0
0.0
0.0
0.0
0.0
0.0
7.7
Total employees
0
1
5
6
0
1
13
Canada
New employees
0
0
0
0
0
0
0
New employees (%)
0.0
0.0
0.0
0.0
0.0
0.0
0.0
Departures
0
0
0
0
0
0
0
Turnover (%)
0.0
0.0
0.0
0.0
0.0
0.0
0.0
Total employees
0
0
7
2
2
0
11
South Korea
New employees
0
0
0
0
0
0
0
New employees (%)
0.0
0.0
0.0
0.0
0.0
0.0
0.0
Departures
0
0
0
0
0
0
0
Turnover (%)
0.0
0.0
0.0
0.0
0.0
0.0
0.0
Total employees
0
0
1
2
0
0
3
Peru
New employees
0
0
0
0
0
0
0
New employees (%)
0.0
0.0
0.0
0.0
0.0
0.0
0.0
Departures
0
0
0
0
0
0
0
Turnover (%)
0.0
0.0
0.0
0.0
0.0
0.0
0.0
Total employees
3
1
7
2
2
0
15
Chile
New employees
0
0
0
0
0
0
0
New employees (%)
0.0
0.0
0.0
0.0
0.0
0.0
0.0
Departures
0
0
0
0
0
0
0
Turnover (%)
0.0
0.0
0.0
0.0
0.0
0.0
0.0
Total employees
3
4
7
2
5
2
23
China
New employees
8
0
3
1
0
0
12
New employees (%)
47.1
0.0
7.0
3.1
0.0
0.0
12.0
Departures
5
0
5
1
0
0
11
Turnover (%)
29.4
0.0
11.6
3.1
0.0
0.0
11.0
Total employees
17
0
43
32
8
0
100
Location
Younger than 30 years old
30–49 years old
50 years old and older
Total
Male 
Female
Male 
Female
Male 
Female
Philippines
New employees
10
5
13
0
0
0
28
New employees (%)
4.2
3.4
1.7
0.0
0.0
0.0
2.0
Departures
8
4
9
1
1
0
23
Turnover (%)
3.3
2.7
1.2
0.5
1.8
0.0
1.6
Total employees
240
149
763
204
57
8
1,421
Taiwan
New employees
0
0
0
0
0
0
0
New employees (%)
0.0
0.0
0.0
0.0
0.0
0.0
0.0
Departures
0
0
0
0
0
0
0
Turnover (%)
0.0
0.0
0.0
0.0
0.0
0.0
0.0
Total employees
1
0
9
11
1
4
26
Australia
New employees
0
0
0
0
0
0
0
New employees (%)
0.0
0.0
0.0
0.0
0.0
0.0
0.0
Departures
0
0
0
0
0
0
0
Turnover (%)
0.0
0.0
0.0
0.0
0.0
0.0
0.0
Total employees
0
0
5
2
0
0
7
Brazil
New employees
0
0
0
0
0
0
0
New employees (%)
0.0
0.0
0.0
0.0
0.0
0.0
0.0
Departures
0
0
0
0
0
0
0
Turnover (%)
0.0
0.0
0.0
0.0
0.0
0.0
0.0
Total employees
0
0
0
0
0
1
1
Thailand
New employees
0
0
0
0
0
0
0
New employees (%)
0.0
0.0
0.0
0.0
0.0
0.0
0.0
Departures
0
0
0
0
0
0
0
Turnover (%)
0.0
0.0
0.0
0.0
0.0
0.0
0.0
Total employees
0
2
0
1
0
0
3
Total
New employees
214
47
104
12
15
2
394
New employees (%)
19.1
13.9
3.4
1.6
0.9
1.1
5.6
Departures
54
11
51
12
64
4
196
Turnover (%)
4.8
3.2
1.6
1.6
4.1
2.2
2.8
Total employees
1,119
339
3,100
771
1,579
186 
7,094
Total employees: number of employees as of March 31, 2022. Officers, non-regular and limited-term employees, and temporary employees are not included in the figures for new 
employees, departures, and total employees.
New employees, percent: number of new employees ÷ total employees x 100.
Turnover: number of departures ÷ total employees x 100.
17
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SUMITOMO METAL MINING CO., LTD.     ESG Data Book 2022

SUMITOMO METAL MINING CO., LTD.     ESG Data Book 2022

Current Status of the Implementation of the Basic Survey into Employee Human Rights (FY2021)
Fiscal year 
conducted
Sites surveyed
Percent of total sites
2017
3
13%
2018
9
50%
2019
6
75%
2020
6
100%
2021
2
108%*
* Two new business sites were added due to a review of the 24 sites in Japan selected in FY2017.
In FY2016, we conducted a Human Rights Due Diligence Survey at 56 of our 73 business sites inside and outside Japan (77% coverage).
  Human Rights Due Diligence Surveys conducted to date identified harassment, communication, and the use of the human rights hotline as 
some of the matters deemed in need of on-going monitoring. These were made the target of further surveys at 26 sites inside Japan.
Current Situation Regarding Parental Leave (as of March 31, 2022) (SMM non-consolidated)
Total 
Male 
Female
Employees with the right to take parental leave1
100
86
14
Employees who took parental leave2
30
18
14
Employees who took parental leave during FY2021 and 
have since returned to work
31
15
16
Employees who were still working at the Company 12 
months after returning from parental leave3
22
6
16
Return-to-work rate of workers who took parental leave4
31/31 (100%)
15/15 (100%)
16/16 (100%)
Retention rate of workers who took parental leave5
22/22 (100%)
6/6 (100%)
16/16 (100%)
1. Male employees: Number of people who submitted a notification of birth to the Company for birth by a spouse in FY2021.
 
Female employees: Number of people who gave birth in FY2021
2. Male employees: Number of people who took parental leave in FY2021
 
Female employees: Number of people who gave birth in FY2021 and took parental leave.
3. The number of employees who returned to work in FY2020 and were still working at the Company 12 months later.
4. Return-to-work rate: number of employees who returned to work in FY2021 ÷ number of employees who intended to return to work in FY2021 x 100.
5. Retention rate: number of employees who returned to work in FY2020 and were still working at the Company 12 months later ÷ number of employees who returned to work in 
FY2020 x 100.
Employee Skill Improvement and Transition Support Program
Employment Rate of Disabled People Over the Past Five Years  
(Sumitomo Metal Mining Co., Ltd., employment rate as of June 1 of each fiscal year)
2018
2019
2020
2021
2022
2.32
2.39
2.50
2.56
2.57
(%)
(FY)
2.5
2.6
2.4
2.3
2.2
2.1
2.0
1.9
Every year, SMM accepts students with disabilities for internship posi-
tions. By deepening understanding of our workplaces and work 
through the experience, we are increasing the number of students 
who feel confident in joining our Company.
Statutory rate
SMM Human Resources Development Program
  
Duty-based program
Self-development
3 year program for  
management track 
employees
Seminar for newly 
promoted employees
Development of  
next generation of 
management
Mid-career hires
Project leaders
Specialized education
External training
Development of  
global human 
resources
Women’s career 
support
Compliance, 
governance, 
risk management
Safety, skills
Pre-retirement 
support
Officers
General managers
Section managers
E-class
S-class
F-class, J-class
Project management training
e-learning
Foreign language programs
Fee assistance for language proficiency tests
Brush-up training
Company-wide correspondence education
Basic SMM education
Life plan training (at 50 and 58 years old)
Seminar on balancing work and nursing care
Compliance seminar
Seminar on work and labor
Human rights seminar, seminar on promotion of diversity
JCO Study Center training
Hazard simulation training
Equipment skills training
Pursue higher education in Japan
Training in Japan
Introductory training for mid-career hires
Secondary training for mid-career hires on the management track
Training for management track employees with women from other industries
Communication training to support the success of subordinates
Individual career support
Career coaching school
Outside seminars/workshops
New employee supervisor training
Problem-solving training for office workers
Supervisor/line leader training
Officers’ coaching school
Participate in training and seminars 
with employees on other career tracks
Training to develop of next 
generation of executive managers
SMM − MMP
General manager 
seminar
Section manager 
seminar
E-class employee 
seminar
Management-track 
S-class employee 
seminar
F-class employee 
seminar (at each 
branch office)
S-class employee seminar 
(at each branch office)
Language training prior to overseas assignment
Global staff training
Overseas training
Language registration program
Language training prior to overseas assignment
Overseas training
Overseas assignment 
Introductory training
Short-term overseas training
Second-year training
Third-year graduation paper presentation
Attend MINETEC
Smelting & Refining University
Mining School
Introductory duty-based
OJT for new employees
19
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SUMITOMO METAL MINING CO., LTD.     ESG Data Book 2022
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SUMITOMO METAL MINING CO., LTD.     ESG Data Book 2022

Employee and Labor-Related Information
Number of Employees & Officers Worldwide (Consolidated) (March 31, 2022)  
Employees
Total 
Tempo-
rary 
employ-
ees
Permanent employees
Occasional 
employees
Full-time 
officers
Managers
Regular employees
Non-regular/ 
limited-term 
employees
Younger than  
30 years old
30–49  
years old
50 years old 
and older
Younger than  
30 years old
30–49  
years old
50 years old 
and older
Male Female
Male Female
Male Female
Male Female
Male Female
Male Female
Male Female
Male Female
SMM 
non-consolidated
23 
0 
0 
0 
168 
9 
289 
4 
468 
116 
737 
171 
510 
70 
235 
36 
2,836 
182 
Consolidated sub-
sidiaries in Japan
61 
0 
0 
0 
89 
3 
178 
0 
387 
66 1,259 
324 
527 
96 
267 
131 
3,388 
355 
Consolidated sub-
sidiaries overseas
25 
0 
19 
12 
192 
68 
23 
7 
245
145
655
196
52 
9 
6 
1 
1,655 
1 
Total
109 
0 
19 
12 
449 
80 
490 
11 1,100
327
2,651
691
1,089 
175 
508 
168 
7,879 
538 
In Japan, 61% of employees belonged to workers’ unions. Overseas, two companies have workers’ unions (excluding Chinese labor unions) 
 resulting in a workers’ union member-
ship at overseas consolidated subsidiaries of 52% 
 .
The number of all employees excluding officers is used as the denominator of the workers’ union membership percentage.
Number of Employees & Officers by Country and Region (March 31, 2022)  
Country/ 
Region
Japan 
U.S.A.
Canada
Nether-
lands
Peru 
Chile 
China 
South 
Korea
Philippines Taiwan Australia 
Brazil 
Thailand 
Total
Male
5,198
6 
11 
1 
13 
18 
76
2 
1,071
12 
6
0
1 
6,415
Female
1,026
8
2 
0 
3 
8 
32
2 
362
15 
2 
1 
3 
1,464
Total
6,224
14
13 
1 
16 
26 
108
4 
1,433
27 
8
1
4 
7,879
Stakeholder Engagement (FY2021)
Stakeholders
Communication method and content
Integrated Report 2022  
reference pages
Customers
Business activities
Websites
Commercials
Quality Assurance
P.138-139
Shareholders and 
Investors
For institutional investors and analysts:
• Hold Account Settlement and Business Strategy Progress Briefing sessions (2 times/year)
• Hold telephone conferences on the content of financial reports (4 times/year, with simultane-
ous Japanese to English interpretation)
• Hold a briefing session on the 2021 3-Year Business Plan (once/year)
For individual investors:
• Publish The Report for Shareholders (2 times/year)
• Hold a briefing (3 times/year)
Engagement with 
Stakeholders
P.110-112
Employees
In-house bulletins/intranet
Various training
Employment environment surveys
Japan:
• Hold labor-management council meetings, labor-management discussions, and Labor-Man-
agement Advisory Committee meetings (as needed)
• Hold a Central Labor Management Conference (1 time/year)
• Set individual job targets at the start of the fiscal year, and hold talks between individual employ-
ees and their supervisors to ascertain the progress being made toward the targets. (3 times/year)
Overseas:
• Establish opportunities for regularly explaining management status to labor unions and 
employee representative organizations, and for hearing the opinions and requests of employ-
ees. In response to requests for safety and work environment improvements, we confirm the 
conditions and enact the necessary improvement measures. Additionally, for cases where 
changes are made that particularly affect employees, we provide notice for an appropriate peri-
od in advance and provide a space for checking opinions
Diverse Human Resources/
Development and Participa-
tion of Human Resources
P.108-109
Local Communities 
and Indigenous 
Peoples
Hishikari Mine: Hold Pollution Prevention Council meetings (2 times/year)
• CBNC: Hold regular information exchanges with 22 barangays,1 including 11 “impact barangays” 
near Rio Tuba.
• THPAL: Hold regular information exchanges with 14 barangays, including 4 neighboring “impact 
barangays.”
• CBNC: Construct facilities required by each barangay, support schools by providing educational 
supplies and materials required for operation, offer free medical support for local communities, 
and promote livelihood support activities that facilitate self-sufficiency.2
• THPAL: Spread organic rice cultivation methods with the help of technical experts, help elderly in 
the area with daily necessities, and support educational advancement through scholarships, etc.2
• Whenever we have no choice but to ask local residents to relocate their residences due to develop-
ment of a mine or related facilities, we provide alternative sites and obtain their understanding in 
advance. At the Hishikari Mine, we asked three local households to relocate between 1983 and 
1989, and at THPAL, we asked 41 households in the affected area to relocate.3 There have been no 
incidents reported as concerns such as complaints from indigenous people in the vicinity of any of 
the mines or smelters and refineries in which we have more than 50% interest. We are also planning 
to implement a human rights due diligence program targeting local residents at our overseas sites.
Co-Existence and Mutual 
Prosperity with Local Com-
munities 
P.113-114 
Rights of Indigenous Peoples 
P.115
Business Partners 
and Suppliers
Sharing the Sumitomo Metal Mining Group Sustainable  Procurement  Policy  
Safety training for subcontractors
• In accordance with the  Sumitomo Metal Mining Group Policy on Human Rights,  Sumitomo 
Metal Mining Group Sustainable Procurement Policy, and SMM Group’s Responsible Mineral 
Sourcing Policy, we will conduct due diligence based on international standards (see pages 
116-117). No suppliers were identified as having apparent or potential problems or issues in 
FY2021. In addition, there were no cases of artisanal and small-scale mining (ASM) within our 
area of operation with labor or other issues. There are no programs involved in this.
Employees’ Occupational 
Health and Safety 
P.106-107
Human Rights in the Supply 
Chain  
P.116-117
NGOs and NPOs
• Hold regular exchanges of opinion with the international environmental NGO FoE Japan 
regarding their findings on topics such as the water quality of rivers around the CBNC and 
THPAL plants, both in the Philippines. Implement necessary improvement measures that refer-
ence the group’s opinions and recommendations. (2 times/year)
Co-Existence and Mutual 
Prosperity with Local Com-
munities 
P.113-114
Government 
Agencies
Regular exchanges of opinion with government agencies
Co-Existence and Mutual 
Prosperity with Local Com-
munities 
P.113-114
1. Barangay: the smallest administrative division that makes up cities and towns in the Philippines, and denotes a vil-
lage, district, or ward.
2. Part of our SDMP (Social Development and Management Program) initiative.
3. The relocation was planned in accordance with the World Bank Operational Policy on Involuntary Resettlement and 
was completed by December 2010 with the consent of all residents. After the relocation, we have continued to pro-
vide support for the repair and maintenance of the houses, as well as livelihood restoration support programs that 
encourage residents to acquire skills and know-how that will enable them to generate income in the future.
Complaints Made to the Group (FY2021)
Type of complaint
Com-
plaints
Complaints about impact on society
0
Complaints concerning the environ-
ment (e.g. vegetation overgrowth 
around the edges of business sites)
8
Total
8
All complaints were dealt with in an appropriate manner.
21
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SUMITOMO METAL MINING CO., LTD.     ESG Data Book 2022
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SUMITOMO METAL MINING CO., LTD.     ESG Data Book 2022
 Engagement with Stakeholders

Main Organizations in Which SMM Has Membership
Organization
Responsibilities of SMM officers and employees
Initiatives relating to public policy
Japan Business Federation 
(Keidanren)
Executive member; participation in the following commit-
tees: New Industry and Technology, Canada, Environment 
and Safety, Oceanic Resources, International Cooperation, 
China, South Asia, Japan-Myanmar Economic, Japan-Brazil 
Economic, Gender Diversity, National Resilience, the Tokyo 
2020 Olympic and Paralympic Games, Energy and Resourc-
es (Planning subcommittee), Labor Legislation (Occupation-
al Health and Safety subcommittee)
As a unified business organization with the goal of making 
improvements to the autonomous growth of the domestic econ-
omy and to public life, we act reliably and swiftly after gathering 
opinions from the business world with regards to various internal 
and external economic challenges.
APEC Business Advisory 
Council Japan
Member
As a member of the Japanese chapter of the APEC Business Advi-
sory Council, an official private sector advisory entity for the 
Asia-Pacific Economic Cooperation (APEC), we support the organi-
zation’s activities.
Japan Mining Industry 
Association
Director; participation in the following committees and oth-
ers: Reserves (chairman and deputy chairman), Planning 
and Coordination, Energy, Overseas Development, Environ-
mental Management, Customs Duties, Funds, Supply and 
Demand, Taxation, Exploration and Development, Sulfide 
Ore and Sulfuric Acid, the Special Committee for Depletion 
Allowance Measures and Safety Promotion
Submission of mining industry policy requests to relevant govern-
ment agencies regarding climate change countermeasures, elec-
tricity fee issues, taxation, resource development, smelting and 
recycling technology, mine safety, and development of employee 
training. Members to be sent to government-sponsored investiga-
tive committees to present industry viewpoint.
International Council on 
Mining and Metals (ICMM)
Implement ICMM’s Mining Principles
Promote ICMM activities and participate in each of the fol-
lowing programme committees: Communications; Environ-
ment; Social & Economic Development; and Health & Safety
• Environment
Initiatives for biodiversity, climate change, and water 
management
• Health and safety
Initiatives for sharing information on health and safety and the 
elimination of accidents
• Materials stewardship
Initiatives for science-based chemical substance management 
and supply chain management
• Society and economy
Initiatives to contribute to the economic development of society 
by the mining industry
International Copper Associ-
ation, Ltd. (ICA)
One member of the Board of Directors
Brings together the global copper industry to develop and 
defend markets for copper and to make a positive contribution to 
society’s sustainable development goals.
• Develop new uses for copper
• Promote demand for copper
• Contribute to achieving the SDGs
Japan Copper Development 
Association
One director
• Develop uses for copper/copper products; develop technology
• Provide correct information about copper (verdigris, bluish water 
from copper pipes, etc.)
Nickel Institute (NI)
Participate in Board, Executive Committee (EXCO), and Stra-
tegic and Planning Advisory Committee (SPAC) meetings
Participate on committees for H&E PP (public policy and 
regulations), Science (scientific research), and MD (market 
development)
Provides support for sustainable growth and development in the 
current stainless steel market and new markets for nickel. Pro-
motes sound science, risk management, and socio-economic 
benefit as the basis for public policy and regulation.
Cobalt Institute
One director
Participate in Board, Executive Committee (EXCO), and 
Cobalt REACH Consortium working group meetings.
As a representative of the cobalt industry, we provide advice 
addressing all issues related to cobalt, including health, safety, and 
environmental issues, in a way that encourages sustainable and 
responsible production and use. We also work to obtain and share 
original information regarding sourcing, production, and use.
The Sulphuric Acid Associa-
tion of Japan
One director; participation in the General Affairs Committee, 
Business Affairs Committee, Technical Committee and Edi-
torial Committee
Communicating policy and information from the Manufacturing 
Industries Bureau of the Ministry of Economy, Trade and Industry to 
member companies and compiling and presenting requests from 
member companies. Striving to publicize and promote use of sulfu-
ric acid as an industry organization through means such as issuing 
booklets on sulfuric acid, and establishing the Standard of the Sul-
phuric Acid Association of Japan (a quality standard for sulfuric acid).
Japan Electronics and Infor-
mation Technology Indus-
tries Association (JEITA)
Participate in Electronic Components Board and Dielectric
Ceramics Committee
Collection of various statistics, and participation in reviews of reg-
ulations, standards, environmental measures and other issues.
Battery Association of Japan
Associate member
Promotion of measures related to recycling, quality performance, 
and product safety that will be required in the future as demand 
for secondary batteries increases.
Battery Association for Sup-
ply Chain
Regular member
One director (representative director and chairperson)
Provide advice on government policy to strengthen the global 
competitiveness of Japan and promote deliberation in Japan 
regarding conforming to international standards for each type of 
raw material in order to facilitate the development of healthy sup-
ply chains for batteries, battery parts, and materials.
Partnerships with Outside Organizations
We agree with and have declared our support for the aims of the Extractive Industries Transparency Initiative (EITI).*
* EITI: https://www.eiti.org/
EITI is a framework for multinational cooperation that enhances transparency in the flow of funds from the so-called extractive industries, those that are involved in oil, gas, and min-
eral resources, to the governments of resource-producing countries, to prevent corruption and conflict and thereby promote responsible resource development that leads to 
growth and the reduction of poverty.
1.	 We share a belief that the prudent use of natural resource wealth 
should be an important engine for sustainable economic growth that 
contributes to sustainable development and poverty reduction, but if 
not managed properly, can create negative economic and social 
impacts.
2.	 We affirm that management of natural resource wealth for the benefit 
of a country’s citizens is in the domain of sovereign governments to 
be exercised in the interest of their national development.
3.	 We recognise that the benefits of resource extraction occur as 
revenue streams over many years and can be highly price dependent.
4.	 We recognise that a public understanding of government revenues 
and expenditure over time could help public debate and inform 
choice of appropriate and realistic options for sustainable develop-
ment.
5.	 We underline the importance of transparency by governments and 
companies in the extractive industries and the need to enhance 
public financial management and accountability.
6.	 We recognise that achievement of greater transparency must be set in 
the context of respect for contracts and laws.
7.	 We recognise the enhanced environment for domestic and foreign 
direct investment that financial transparency may bring.
8.	 We believe in the principle and practice of accountability by govern-
ment to all citizens for the stewardship of revenue streams and public 
expenditure.
9.	 We are committed to encouraging high standards of transparency 
and accountability in public life, government operations and in 
business.
10.	We believe that a broadly consistent and workable approach to the 
disclosure of payments and revenues is required, which is simple to 
undertake and to use.
11.	We believe that payments’ disclosure in a given country should 
involve all extractive industry companies operating in that country.
12.	In seeking solutions, we believe that all stakeholders have important 
and relevant contributions to make—including governments and 
their agencies, extractive industry companies, service companies, 
multilateral organisations, financial organisations, investors, and 
non-governmental organisations.
 The Extractive Industries Transparency Initiative (EITI)
SMM participates in the international organizations listed below, issues declarations of support, complies with the organizations’ rules, and supports 
their activities. As a company in the mining and metal refining industries, we undertake initiatives for the sustainable development demanded of us.
ICMM is an international organization that was established to ensure that the mining and metals industries are made safe, fair, and sustainable 
(https://www.icmm.com/en-gb). Comprises of the world’s biggest mining and metals companies, as well as regional and commodity-focused orga-
nizations. SMM is a member company.
  ICMM has Mining Principles as guidance for environmental, social, and governance initiatives in the mining and metals industries. The Mining 
Principles comprise 10 Principles, a set of performance expectations* that stipulate specific targets for action on these principles, position state-
ments concerning certain specific issues, and an assurance and validation procedure.
* Performance expectations 
https://www.icmm.com/en-gb/our-principles
ICMM has set forth the following position statements regarding 
important individual issues. The SMM Group is committed to comply-
ing with these initiatives.
Principle 1:
Apply ethical business practices and sound systems of 
corporate governance and transparency to support sustain-
able development.
Principle 2:
Integrate sustainable development in corporate strategy and 
decision-making processes.
Principle 3: 
Respect human rights and the interests, cultures, customs and 
values of workers and communities affected by our activities.
Principle 4: 
Implement effective risk-management strategies and systems 
based on sound science, and which account for stakeholder 
perceptions of risk.
Principle 5:
Pursue continual improvement in  physical and psychological 
health and safety performance with the ultimate goal of zero 
harm.
Principle 6: 
Pursue continual improvement in environmental performance 
issues, such as water stewardship, energy use and climate 
change.
Principle 7: 
Contribute to the conservation of biodiversity and integrated 
approaches to land-use planning.
Principle 8: 
Facilitate and support the knowledge-base and systems for 
responsible design, use, re-use, recycling and disposal of 
products containing metals and minerals.
Principle 9:
Pursue continual improvement in social performance and 
contribute to the social, economic and institutional develop-
ment of host countries and communities.
Principle 10:
Proactively engage key stakeholders on sustainable develop-
ment challenges and opportunities in an open and transparent 
manner, effectively report and independently verify progress 
and performance.
 Climate Change
 Water Stewardship
 Tailings Governance Framework
 Indigenous Peoples and Mining
 Mining Partnerships for Development
 Transparency of Mineral Revenues
 Mercury Risk Management
 Mining and Protected Areas
The 10 Principles of the ICMM
Position statements
 International Council on Mining and Metals (ICMM) 
See P.112 of Integrated Report 2022
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SUMITOMO METAL MINING CO., LTD.     ESG Data Book 2022
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SUMITOMO METAL MINING CO., LTD.     ESG Data Book 2022

Percentage of Payments to Local Suppliers and Local Employment
Investment in Infrastructure and Support Services
Name of company or business site1 
 (payment area)
Local procurement （FY2021)
Percentage of 
locally-hired 
employees2 
(March 31, 2021)
Payment to the area
Percentage3
Niihama District (Ehime Prefecture)
¥15.0 billion
53%4
83%5
Coral Bay Nickel Corporation (Philippines)
$78 million
51%
59%
Taganito HPAL Nickel Corporation (Philippines)
$104 million
44%
43%
Hishikari Mine (Kagoshima Prefecture)
¥1.2 billion
47%
88%
Sumiko Energy Materials Co., Ltd. (Fukushima 
Prefecture)
¥418 million
33%
95%
Shanghai Sumiko Electronic Paste Co., Ltd. 
(China)
CNY 202 million
21%
95%
1. Totaled for the three core segments (Mineral Resources, Smelting & Refining, and Materials), business sites that are not only necessary for the 
business, but are also relatively large-scale (one domestic, one overseas site for each segment).
2. Percentage of locally-hired employees: number of employees from the payment area ÷ total employees x 100.
3. Percentage of payments: amount of payments to payment area ÷ amount of total procurement payments x 100.
4. Sumitomo Metal Mining Co., Ltd.’s Besshi-Niihama District Division, Toyo Smelter & Refinery, Niihama Nickel Refinery, Isoura Plant and Niihama 
Research Laboratories.
5. Sumitomo Metal Mining Co., Ltd.’s Besshi-Niihama District Division, Toyo Smelter & Refinery, Niihama Nickel Refinery, Isoura Plant, Niihama 
Research Laboratories and Battery Research Laboratories.
Region 
Details
Amount (FY2021) 
Japan
• Donations to scholarship funds for orphans in Iwate, Miyagi, and Fukushima Prefectures, which were hit by the 
Great East Japan Earthquake (making donations every year since 2012)
• Donations to medical organizations such as the Cancer Institute and the Japan Heart Foundation
• Donations to sports organizations such as the Japanese Para-Sports Association
• Support for basic science research, environmental research, and activities for the maintenance and restoration 
of cultural properties through The Sumitomo Foundation
• Donations to Keidanren Nature Conservation Fund
• Support for employment of former inmates and others by donating to the National Organization of Labor Sup-
port Providers
• Support for victims of crime through donations to the Victim Support Center of Tokyo
• Expenditures for social contribution activities, including donations to the Tokyo 2020 Olympic and Paralympic 
Games
¥60 million
Philippines
• Supporting measures to prevent dengue fever in communities neighboring the plant (awareness activities, 
spraying insecticide, cleaning activities, etc.)
• Undertaking a water supply equipment installation project for communities neighboring the plant
• Popularizing organic rice cultivation among communities neighboring the plant with the help of technical 
experts
In the Philippines we are continuing to provide support through SDMP.*
¥1,250 million
* SDMP: Social Development and Management Program, conducted by a company for the welfare of residents living in the vicinity of its operating area
Presence in the Local Economy
Indirect Economic Impact
Number of Locally-Hired Senior Managers (General Managers and above) and Locally-Hired Employees (March 31, 2022)
Name of company (Country or region)
Senior managers
Percentage1
Locally-hired 
employees2
Male 
Female
Sumitomo Metal Mining Philippine Holdings  Corporation (Philippines)
1
2
4%
79
Taganito HPAL Nickel Corporation (Philippines)
1
1
0.3%
696
Coral Bay Nickel Corporation (Philippines)
5
1
1%
552
Sumitomo Metal Mining Peru S.A. (Peru)
1
0
7%
15
SMM KOREA Co., Ltd. (South Korea)
1
0
25%
4
Shanghai Sumiko Electronic Paste Co., Ltd. (China)
2
0
5%
41
Taiwan Sumiko Materials Co., Ltd. (Taiwan)
0
0
0%
24
Dongguan Sumiko Electronic Paste Co., Ltd. (China)
2
1
13%
24
Sumitomo Metal Mining Oceania Pty. Ltd. (Australia)
1
1
50%
4
1. Percentage: number of senior managers ÷ locally-hired employees x 100.
2. Employees hired directly by overseas affiliated companies and excluding workers on loan and transferred workers.
Closure Plans for Mines and Smelting Plants
Business site
Details 
Amount totals up to and including 
FY2021
Time period
Hishikari Mine
Mine pollution control reserve
¥39.50 million
From 1984
Coral Bay Nickel 
Corporation
Closure and cleanup for the refinery 
and mineral processing plant
Total approx. 330 million pesos*
From 2012 (accumulating every year)
Taganito HPAL Nickel 
Corporation
Expenses required for the closure plan
Total approx. 286 million pesos
From 2016 (accumulating every year))
* Expenses according to the closure plan Coral Bay Nickel Corporation submitted to the Department of Environmental and Natural Resources.
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SUMITOMO METAL MINING CO., LTD.     ESG Data Book 2022
 Co-Existence and Mutual Prosperity with Local Communities

Economic Performance
Distribution of Economic Value to Stakeholders (FY2021)  
Stakeholder
Amount  
(billions of yen)
Details
Suppliers
978.5
Payments to suppliers
Employees
68.4
Payments to employees
Shareholders/ 
Creditors
78.6
Payments of dividends/ interest
Government
52.3
Taxes paid
Society*
1.3
Donations
No governments have an equity stake in SMM. Other than the above, there is retained 
value of ¥229.7 billion. Rent for use of land is minimal and therefore included in “Pay-
ments to suppliers.”
* Society: In the Philippines (CBNC, THPAL), the ¥1.3 billion expended through the Social 
Development and Management Program (SDMP) and other contributions in the same 
country is included.
Income Tax by Country or Region (FY2021) 
Country or region
Amount  
(millions of yen)
Japan
33,094
U.S.A.
9,460
Netherlands
662
Peru
16,260
Chile 
5,852
China
1,598
Philippines
4,040
New Caledonia
530
Australia
574
Others
30
Total
72,100
With regard to equity-method affiliates, the above amounts include the Company’s pro-
portional burden of income tax.
Financial Assistance from the Government (FY2021)  
Stakeholder
Amount  
(billions of yen)
Details
Government and 
business partners
0.3
Subsidies, grants, etc.
The SMM Group has adopted both funded and unfunded defined 
benefit plans and defined contribution plans for allocating retire-
ment benefits to its employees. Its defined benefit obligations as 
of March 31, 2022 were ¥70.8 billion  , which include funded 
defined benefit obligations of ¥68.2 billion, and pension assets 
available for allocation to those funded defined benefit obligations 
were ¥83.8 billion  .
Projected Benefit Obligation
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SUMITOMO METAL MINING CO., LTD.     ESG Data Book 2022
 Other