GRI Standard Index | MITSUI MINING & SMELTING CO., LTD.

This report is prepared in accordance with the core option of the Global Reporting Initiative (GRI) Sustainability Reporting Standards.

GRI 102: General Disclosures

Number	Disclosure	Related Web Page or Reasons for Omission
1. Organizational profile
102-1	Name of the organization	Corporate Profile
102-2	Activities, brands, products, and services	Corporate Profile
102-2	Activities, brands, products, and services	Business Area
102-3	Location of headquarters	Corporate Profile
102-4	Location of operations	Corporate Profile
102-4	Location of operations	Business Locations
102-5	Ownership and legal form	Corporate Profile
102-6	Markets served	Business Area
102-6	Markets served	Business Locations
102-7	Scale of the organization	Corporate Profile
		Business Locations
		Integrated Report - Financial Section
102-8	Information on employees and other workers	ESG Data
102-9	Supply chain	Supply Chain
102-9	Supply chain	Integrated Report - Supply chain management
102-10	Significant changes to the organization and its supply chain	Supply Chain
102-10		Integrated Report - Supply chain management
102-11	Precautionary Principle or approach	Sustainability Management Framework
102-11	Precautionary Principle or approach	Stakeholders and Materiality
102-12	External initiatives	Stakeholders and Materiality
102-13	Membership of associations	Stakeholders and Materiality
102-13	Membership of associations	Supply Chain
2. Strategy
102-14	Statement from senior decision-maker	Top Message
102-15	Key impacts, risks, and opportunities	Top Message
		Value Creation
		Integrated Report - Business strategy
3. Ethics and integrity
102-16	Values, principles, standards, and norms of behavior	Management Philosophy
102-16	Values, principles, standards, and norms of behavior	Sustainability Management Framework
102-17	Mechanisms for advice and concerns about ethics	Integrated Report - Compliance/Respect for human rights
4. Governance
102-18	Governance structure	Corporate Governance
		Integrated Report - Corporate governance
		Sustainability Management Framework
102-19	Delegating authority	Corporate Governance
		Integrated Report - Corporate governance
		Sustainability Management Framework
102-20	Executive-level responsibility for economic, environmental, and social topics	Corporate Governance
		Integrated Report - Corporate governance
		Sustainability Management Framework
102-21	Consulting stakeholders on economic, environmental, and social topics	Stakeholders and Materiality
102-22	Composition of the highest governance body and its committees	Corporate Governance
		Integrated Report - Corporate governance
		Sustainability Management Framework
102-23	Chair of the highest governance body	Corporate Governance
102-23	Chair of the highest governance body	Integrated Report - Corporate governance
102-24	Nominating and selecting the highest governance body	Corporate Governance
102-24	Nominating and selecting the highest governance body	Integrated Report - Corporate governance
102-25	Conflicts of interest	Corporate Governance
102-25	Conflicts of interest	Integrated Report - Corporate governance
102-26	Role of highest governance body in setting purpose, values, and strategy	Corporate Governance
		Integrated Report - Corporate governance
		Sustainability Management Framework
102-27	Collective knowledge of highest governance body	Corporate Governance
		Integrated Report - Corporate governance
		Sustainability Management Framework
102-28	Evaluating the highest governance body's performance	Corporate Governance
		Integrated Report - Corporate governance
		Sustainability Management Framework
102-29	Identifying and managing economic, environmental, and social impacts	Top Message
		Sustainability Management Framework
		Stakeholders and Materiality
		Supply Chain
		Integrated Report - Supply chain management
102-30	Effectiveness of risk management processes	Sustainability Management Framework
		Corporate Governance
		Integrated Report - Corporate governance
		Integrated Report - Compliance/Respect for human rights
102-31	Review of economic, environmental, and social topics	Sustainability Management Framework
102-31	Review of economic, environmental, and social topics	Stakeholders and Materiality
102-32	Highest governance body's role in sustainability reporting	Sustainability Management Framework
102-33	Communicating critical concerns	Corporate Governance
102-33	Communicating critical concerns	Integrated Report - Corporate governance
102-34	Nature and total number of critical concerns	Integrated Report - Compliance/Respect for human rights
102-34	Nature and total number of critical concerns	ESG Data
102-35	Remuneration policies	Corporate Governance
102-35	Remuneration policies	Integrated Report - Corporate governance
102-36	Process for determining remuneration	Corporate Governance
102-36	Process for determining remuneration	Integrated Report - Corporate governance
102-37	Stakeholders' involvement in remuneration	Corporate Governance
102-37	Stakeholders' involvement in remuneration	Integrated Report - Corporate governance
102-38	Annual total compensation ratio
102-39	Percentage increase in annual total compensation ratio
5. Stakeholder engagement
102-40	List of stakeholder groups	Stakeholders and Materiality
102-41	Collective bargaining agreements	Integrated Report - Compliance/Respect for human rights
102-42	Identifying and selecting stakeholders	Stakeholders and Materiality
102-43	Approach to stakeholder engagement	Stakeholders and Materiality
		Supply Chain
		Integrated Report - Compliance/Respect for human rights
102-44	Key topics and concerns raised	Stakeholders and Materiality
		Supply Chain
		Integrated Report - Compliance/Respect for human rights
6. Reporting practice
102-45	Entities included in the consolidated financial statements	Corporate Profile
102-45	Entities included in the consolidated financial statements	Business Locations
102-46	Defining report content and topic Boundaries	Sustainability Management Framework
102-46	Defining report content and topic Boundaries	Stakeholders and Materiality
102-47	List of material topics	Stakeholders and Materiality
102-47	List of material topics	Integrated Report - Progress of material issues
102-48	Restatements of information	Climate Change
102-49	Changes in reporting	Not applicable
102-50	Reporting period	Integrated Report - Cover/Editorial Policy/Contents
102-51	Date of most recent report	July,2018
102-52	Reporting cycle	Annualy
102-53	Contact point for questions regarding the report	Inquiries
102-54	Claims of reporting in accordance with the GRI Standards	GRI Standard Index
102-55	GRI content index	GRI Standard Index
102-56	External assurance	Integrated Report - Corporate profile and Stock information/Independent Practitioner’s Assurances Report

GRI 103: Management Approach 2016

Number	Disclosure	Related Web Page or Reasons for Omission
103-1	Explanation of the material topic and its Boundary	Sustainability Management Framework
		Stakeholders and Materiality
		Integrated Report - Progress of material issues
103-2	The management approach and its components	Sustainability Management Framework
		Stakeholders and Materiality
		Integrated Report - Progress of material issues
		Integrated Report - Compliance/Respect for human rights
103-3	Evaluation of the management approach	Sustainability Management Framework
103-3	Evaluation of the management approach	Stakeholders and Materiality

GRI 200 series (Economic topics)

Number	Disclosure	Related Web Page or Reasons for Omission
GRI 201: Economic Performance 2016
201-1	Direct economic value generated and distributed	Integrated Report - Financial strategy/Financial highlights
201-1	Direct economic value generated and distributed	Integrated Report - Financial Section
201-2	Financial implications and other risks and opportunities due to climate change
201-3	Defined benefit plan obligations and other retirement plans
201-4	Financial assistance received from government
GRI 202: Market Presence 2016
202-1	Ratios of standard entry level wage by gender compared to local minimum wage
202-2	Proportion of senior management hired from the local community	ESG Data
GRI 203: Indirect Economic Impacts 2016
203-1	Infrastructure investments and services supported	Community Engagement
203-1	Infrastructure investments and services supported	Mining Business
203-2	Significant indirect economic impacts	Mining Business
GRI 204: Procurement Practices 2016
204-1	Proportion of spending on local suppliers
GRI 205: Anti-corruption 2016
205-1	Operations assessed for risks related to corruption	Integrated Report - Compliance/Respect for human rights
205-2	Communication and training about anti-corruption policies and procedures	Integrated Report - Compliance/Respect for human rights
205-3	Confirmed incidents of corruption and actions taken	Not applicable
GRI 206: Anti-competitive Behavior 2016
206-1	Legal actions for anti-competitive behavior, anti-trust, and monopoly practices	Not applicable

GRI 300 series (Environmental topics)

Number	Disclosure	Related Web Page or Reasons for Omission
GRI 301: Materials 2016
301-1	Materials used by weight or volume	Water, Waste and Emissions
301-2	Recycled input materials used	Water, Waste and Emissions
301-3	Reclaimed products and their packaging materials
GRI 302: Energy 2016
302-1	Energy consumption within the organization	Climate Change
302-1	Energy consumption within the organization	ESG Data
302-2	Energy consumption outside of the organization	Climate Change
302-2	Energy consumption outside of the organization	ESG Data
302-3	Energy intensity
302-4	Reduction of energy consumption	Climate Change
302-4	Reduction of energy consumption	ESG Data
302-5	Reductions in energy requirements of products and services	Climate Change
302-5	Reductions in energy requirements of products and services	ESG Data
GRI 303: Water 2018
303-1	Interactions with water as a shared resource	Water, Waste and Emissions
303-1	Interactions with water as a shared resource	ESG Data
303-2	Management of water discharge-related impacts	Water, Waste and Emissions
303-2	Management of water discharge-related impacts	ESG Data
303-3	Water withdrawal	Water, Waste and Emissions
303-3	Water withdrawal	ESG Data
303-4	Water discharge	Water, Waste and Emissions
303-4	Water discharge	ESG Data
303-5	Water consumption	Water, Waste and Emissions
303-5	Water consumption	ESG Data
GRI 304: Biodiversity 2016
304-1	Operational sites owned, leased, managed in, or adjacent to, protected areas and areas of high biodiversity value outside protected areas	Biodiversity
304-1		Mining Business
304-2	Significant impacts of activities, products, and services on biodiversity	Biodiversity
304-2		Mining Business
304-3	Habitats protected or restored	Biodiversity
304-3	Habitats protected or restored	Mining Business
304-4	IUCN Red List species and national conservation list species with habitats in areas affected by operations
GRI 305: Emissions 2016
305-1	Direct (Scope 1) GHG emissions	Climate Change
305-1	Direct (Scope 1) GHG emissions	ESG Data
305-2	Energy indirect (Scope 2) GHG emissions	Climate Change
305-2	Energy indirect (Scope 2) GHG emissions	ESG Data
305-3	Other indirect (Scope 3) GHG emissions	Climate Change
305-3	Other indirect (Scope 3) GHG emissions	ESG Data
305-4	GHG emissions intensity
305-5	Reduction of GHG emissions	Climate Change
305-5	Reduction of GHG emissions	ESG Data
305-6	Emissions of ozone-depleting substances (ODS)
305-7	Nitrogen oxides (NOX), sulfur oxides (SOX), and other significant air emissions	Water, Waste and Emissions
305-7		ESG Data
GRI 306: Effluents and Waste 2016
306-1	Water discharge by quality and destination	Water, Waste and Emissions
306-1	Water discharge by quality and destination	ESG Data
306-2	Waste by type and disposal method
306-3	Significant spills	Not applicable
306-4	Transport of hazardous waste	Water, Waste and Emissions
306-5	Water bodies affected by water discharges and/or runoff	Mining Business
GRI 307: Environmental Compliance 2016
307-1	Non-compliance with environmental laws and regulations	Not applicable
GRI 308: Supplier Environmental Assessment 2016
308-1	New suppliers that were screened using environmental criteria
308-2	Negative environmental impacts in the supply chain and actions taken	Supply Chain
308-2		Integrated Report - Supply chain management

GRI 400 series (Social topics)

Number	Disclosure	Related Web Page or Reasons for Omission
GRI 401: Employment 2016
401-1	New employee hires and employee turnover	ESG Data
401-2	Benefits provided to full-time employees that are not provided to temporary or part-time employees
401-3	Parental leave	ESG Data
GRI 402: Labor/Management Relations 2016
402-1	Minimum notice periods regarding operational changes
GRI 403: Occupational Health and Safety 2018
403-1	Occupational health and safety management system	Health and Safety
403-2	Hazard identification, risk assessment, and incident investigation
403-3	Occupational health services
403-4	Worker participation, consultation, and communication on occupational health and safety	Health and Safety
403-5	Worker training on occupational health and safety	Health and Safety
403-5	Worker training on occupational health and safety	Integrated Report - Occupational health and safety
403-6	Promotion of worker health	Health and Safety
403-7	Prevention and mitigation of occupational health and safety impacts directly linked by business relationships	Health and Safety
403-8	Workers covered by an occupational health and safety management system	Health and Safety
403-9	Work-related injuries	Integrated Report - Occupational health and safety
		ESG Data
403-10	Work-related ill health
GRI 404: Training and Education 2016
404-1	Average hours of training per year per employee
404-2	Programs for upgrading employee skills and transition assistance programs	Human Resources Development
404-3	Percentage of employees receiving regular performance and career development reviews	Human Resources Development
GRI 405: Diversity and Equal Opportunity 2016
405-1	Diversity of governance bodies and employees	Corporate Governance
		Integrated Report - Corporate governance
		ESG Data
405-2	Ratio of basic salary and remuneration of women to men
GRI 406: Non-discrimination 2016
406-1	Incidents of discrimination and corrective actions taken	Not applicable
GRI 407: Freedom of Association and Collective Bargaining 2016
407-1	Operations and suppliers in which the right to freedom of association and collective bargaining may be at risk	Human Rights
		Integrated Report - Compliance/Respect for human rights
		Supply Chain
		Integrated Report - Supply chain management
GRI 408: Child Labor 2016
408-1	Operations and suppliers at significant risk for incidents of child labor	Human Rights
		Integrated Report - Compliance/Respect for human rights
		Supply Chain
		Integrated Report - Supply chain management
GRI 409: Forced or Compulsory Labor 2016
409-1	Operations and suppliers at significant risk for incidents of forced or compulsory labor	Human Rights
		Integrated Report - Compliance/Respect for human rights
		Supply Chain
		Integrated Report - Supply chain management
GRI 410: Security Practices 2016
410-1	Security personnel trained in human rights policies or procedures
GRI 411: Rights of Indigenous Peoples 2016
411-1	Incidents of violations involving rights of indigenous peoples	Not applicable
GRI 412: Human Rights Assessment 2016
412-1	Operations that have been subject to human rights reviews or impact assessments	Human Rights
412-1		Integrated Report - Compliance/Respect for human rights
412-2	Employee training on human rights policies or procedures	Integrated Report - Compliance/Respect for human rights
412-3	Significant investment agreements and contracts that include human rights clauses or that underwent human rights screening	Human Rights
412-3		Supply Chain
GRI 413: Local Communities 2016
413-1	Operations with local community engagement, impact assessments, and development programs	Mining Business
		Integrated Report - Mining business
		Community Engagement
413-2	Operations with significant actual and potential negative impacts on local communities	Mining Business
413-2		Integrated Report - Mining business
GRI 414: Supplier Social Assessment 2016
414-1	New suppliers that were screened using social criteria	Supply Chain
414-1	New suppliers that were screened using social criteria	Integrated Report - Supply chain management
414-2	Negative social impacts in the supply chain and actions taken	Supply Chain
414-2		Integrated Report - Supply chain management
GRI 415: Public Policy 2016
415-1	Political contributions
GRI 416: Customer Health and Safety 2016
416-1	Assessment of the health and safety impacts of product and service categories	Quality Management
416-2	Incidents of non-compliance concerning the health and safety impacts of products and services	Not applicable
GRI 417: Marketing and Labeling 2016
417-1	Requirements for product and service information and labeling
417-2	Incidents of non-compliance concerning product and service information and labeling	Not applicable
417-3	Incidents of non-compliance concerning marketing communications	Not applicable
GRI 418: Customer Privacy 2016
418-1	Substantiated complaints concerning breaches of customer privacy and losses of customer data	Not applicable
GRI 419: Socioeconomic Compliance 2016
419-1	Non-compliance with laws and regulations in the social and economic area	Not applicable

Disclosure Title by GRI G4 Sustainability Reporting Guidelines specified for the metal and mining peer

Number	Disclosure	Related Web Page or Reasons for Omission
MM1	"Amount of land (owned or leased, and managed for production activities or extractive use) disturbed or rehabilitated"
MM2	The number and percentage of total sites identified as requiring biodiversity management plans according to stated criteria, and the number (percentage) of those sites with plans in place
MM3	"Total amounts of overburden, rock, tailings, and sludges (in tons) and their associated risks"	Mining Business
MM4	"Number of strikes and lock-outs exceeding one week’s duration, by country References"	Integrated Report - Mining business
MM5	Total number of operations taking place in or adjacent to Indigenous Peoples’ territories, and number and percentage of operations or sites where there are formal agreements with Indigenous Peoples’ communities	Integrated Report - Compliance/Respect for human rights
MM5		Mining Business
MM6	"Number and description of significant disputes relating to land use, customary rights of local communities and Indigenous Peoples"	Integrated Report - Mining business
MM7	"The extent to which grievance mechanisms were used to resolve disputes relating to land use, customary rights of local communities and Indigenous Peoples, and the outcomes"	Integrated Report - Mining business
MM8	Number (and percentage) of company operating sites where artisanal and small-scale mining (ASM) takes place on, or adjacent to, the site; the associated risks and the actions taken to manage and mitigate these risks	Integrated Report - Mining business
MM8		Mining Business
MM9	Sites where resettlements took place, the number of households resettled in each, and how their livelihoods were affected in the process	Integrated Report - Mining business
MM9		Mining Business
MM10	Number and percentage of operations with closure plans	Integrated Report - Mining business
MM10	Number and percentage of operations with closure plans	Mining Business