IAMGOLD : 2025 Sustainability Reporting Index
IMG.TO
Published on 04/23/2026 at 12:00 pm EDT
2025
SUSTAInABILITY REPORTInG
2025 Sustainability Reporting Content Index
SASB Index TCFD Index 2
ABOUT THIS REPORT 00
GRI IndEX 00
Universal Standards 00
› GRI 2: General Disclosures 00
› GRI 3: Material Topics 00
Topic Specific Standards 00
› GRI 200: Economic Disclosures 00
› GRI 300: Environmental Disclosures 00
› GRI 400: Social Disclosures 00
Other Topics 00
SASB IndEX 00
TCFd IndEX 00
Côté Gold is among the largest gold mines in production in Canada, which IAMGOLD operates in a 70|30 partnership with Sumitomo Metal Mining Co. Ltd. ("SMM" or "Sumitomo"). In addition, the Company has
an established portfolio of early stage and advanced exploration projects within high potential mining districts, including the large-scale Nelligan Mining Complex located in Québec, Canada. We are committed to maintaining our culture of accountable mining through high standards
of Environmental, Social and Governance practices. IAMGOLD is listed on the New York Stock Exchange (NYSE:IAG) and the Toronto Stock Exchange (TSX:IMG).
As part of IAMGOLD's sustainability reporting, we reference several international recognized sustainability reporting
frameworks, including the Global Reporting Initiative (GRI), the Sustainability Accounting Standards Board (SASB) and the Task Force on Climate-related Financial Disclosures (TCFD). This report is a supplementary document to IAMGOLD's 2025 Sustainability Report for the January 1 to December 31, 2025 reporting period and provides the content indices for each referenced reporting framework, mapping our disclosures to the relevant public disclosures to show how we align with these standards.
The indices include references to additional documents where further details for each requirement can be found. Some disclosures are expanded in IAMGOLD's Sustainability Report, corporate filings or other publicly available materials.
The reporting scope encompasses IAMGOLD's operating sites, projects, advanced exploration and corporate offices.
Operating sites and projects: Côté Gold Mine ("Côté Gold") in Ontario, Canada; Westwood Complex ("Westwood") in Québec, Canada; and Essakane Gold Mine ("Essakane") in Burkina Faso;
Advanced exploration: Canada (Ontario and Québec), Peru and Burkina Faso; and
Corporate office: Toronto, Ontario.
For our advanced exploration projects, we report on a set of indicators. Safety, workforce, energy, emissions,
biodiversity and land use, and significant incidents related to local communities and Indigenous Peoples are inclusive of advanced exploration. Exploration in Mali is excluded, apart from information on workforce and safety. For joint venture projects,1 we report data on an operational control basis, including greenhouse gas (GHG) emissions.
1 Côté Gold is a 70/30 joint venture between IAMGOLD and Sumitomo Metal Mining Co. Ltd.
2025 Sustainability Reporting Content Index
About This Report GRI Index
SASB Index
TCFD Index 3
GRI 2 GRI 3 GRI 200 GRI 300 GRI 400 Other Topics
GRI Standard/Other Source Disclosure Location/Direct Response Requirement(s) omitted
GRI 2: GEnERAL dISCLOSURES
GRI 2: General Disclosures 2021
2-1 Organizational details
2025 Sustainability Report
Company Overview
About IAMGOLD
2-2 Entities included in the organization's sustainability reporting
2025 Sustainability Report
About This Report
2-3 Reporting period, frequency and contact point
2025 Sustainability Report
About This Report
2-4 Restatements of information
2025 Sustainability Report
About This Report
Methodology, Restatements and Limitations
2-5 External assurance
2025 Sustainability Report
About This Report
2-6 Activities, value chain and other business relationships
2025 Sustainability Report
About IAMGOLD
Our Supply Chain
2-7 Employees
2025 Sustainability Report
Our Workforce
ESG Performance Data Summary (2023-2025)
2025 ESG Performance Data
Workforce tab
2-8 Workers who are not employees
2025 Sustainability Report
Our Workforce
ESG Performance Data Summary (2023-2025)
2025 ESG Performance Data
Workforce tab
Requirement(s) omitted:
i. the most common types of worker and their contractual relationship with the organization;
ii. the type of work they perform;
describe the methodologies and assumptions used to compile the data
Reason:
Information unavailable/incomplete
Explanation:
Contractor information varies by site, and due to the diverse nature of contractual relationships and job types across different locations, we are unable to consistently report the required data.
2025 Sustainability Reporting Content Index
About This Report GRI Index
SASB Index
TCFD Index 4
GRI Standard/Other Source Disclosure Location/Direct Response Requirement(s) omitted
GRI 2: GEnERAL dISCLOSURES
GRI 2 GRI 3 GRI 200 GRI 300 GRI 400 Other Topics
GRI 2: General Disclosures 2021
2-9 Governance structure and composition
2025 Sustainability Report
Board Oversight
Equity, Diversity and Inclusion
ESG Performance Data Summary (2023-2025)
2025 ESG Performance Data
Workforce tab
2026 Management Information Circular
Board of Directors
Statement of Corporate Governance Practices
Requirement(s) omitted:
c. describe the composition of the highest governance body and its committees by:
vi. under-represented social groups
Reason:
Information unavailable/incomplete
Explanation:
IAMGOLD does not track Board composition by under-represented social groups.
2-10 Nomination and selection of the highest governance body
2025 Sustainability Report
Board Oversight
Board Renewal Policy
2026 Management Information Circular
Nomination of Directors
2-11 Chair of the highest governance body
2025 Sustainability Report
Board Oversight
2-12 Role of the highest governance body in overseeing the management of impacts
2025 Sustainability Report
Board Oversight
2-13 Delegation of responsibility for managing impacts
2025 Sustainability Report
Management Oversight
2-14 Role of the highest governance body in sustainability reporting
2025 Sustainability Report
About This Report
2-15 Conflicts of interest
2025 Sustainability Report
Board Oversight
2026 Management Information Circular
Board Roles and Responsibilities
2-16 Communication of critical concerns
2025 Sustainability Report
Management Oversight
Business Ethics and Integrity
2-17 Collective knowledge of the highest governance body
2026 Management Information Circular
Director Orientation and Continuing Education
2-18 Evaluation of the performance of the highest governance body
2026 Management Information Circular
Board Performance Assessment
2-19 Remuneration policies
2026 Management Information Circular
Compensation Philosophy and Guiding Principles
Compensation Governance and Risk Management
Director Compensation
2025 Sustainability Reporting Content Index
About This Report GRI Index
SASB Index
TCFD Index 5
GRI Standard/Other Source Disclosure Location/Direct Response Requirement(s) omitted
GRI 2: GEnERAL dISCLOSURES
GRI 2 GRI 3 GRI 200 GRI 300 GRI 400 Other Topics
GRI 2: General Disclosures 2021
2-20 Process to determine remuneration
2026 Management Information Circular
Compensation Program Oversight
IAMGOLD publishes results of votes on remuneration policies and proposals on our website following our Annual General Meeting.
2-22 Statement on sustainable development strategy
2025 Sustainability Report
Message from Our CEO
2-23 Policy commitments
IAMGOLD's policy commitments are included within each material topic discussion and in the following sections:
2025 Sustainability Report
Policies and Management Systems
Business Ethics and Integrity
Our Supply Chain
Human Rights and Security
2-24 Embedding policy commitments
IAMGOLD's approach to embedding policy commitments is included within each material topic discussion and in the following sections:
2025 Sustainability Report
Policies and Management Systems
Business Ethics and Integrity
Our Supply Chain
Human Rights and Security
2-25 Processes to remediate negative impacts
2025 Sustainability Report
Community Relations
Indigenous Relations
Business Ethics and Integrity
Human Rights and Security
2-26 Mechanisms for seeking advice and raising concerns
2025 Sustainability Report
Policies and Management Systems
Business Ethics and Integrity
2-27 Compliance with laws and regulations
2025 Sustainability Report
Water Stewardship
Tailings and Waste Management
Biodiversity and Land Use
In 2025, there were six non-compliance notices related to water that resulted in a formal enforcement action, although none were assessed internally as significant, meaning they were not categorized as Level 4 or 5 based on our risk matrix, and/or resulting in fines greater than US$100,000.
There were zero significant incidents of non-compliance related waste management and biodiversity.
Requirement(s) omitted:
b. report the total number and the monetary value of fines for instances of noncompliance with laws and regulations
Reason:
Information unavailable/incomplete
Explanation:
IAMGOLD discloses information that are categorized as Level 4 or 5 based on our risk matrix, and/or resulting in fines greater than US$100,000. Our risk matrix includes a consequence matrix to determine incident severity that considers environmental, health and safety, social, and financial aspects.
2-28 Membership associations
2025 Sustainability Report
About IAMGOLD
2025 Sustainability Reporting Content Index
About This Report GRI Index
SASB Index
TCFD Index 6
GRI Standard/Other Source Disclosure Location/Direct Response Requirement(s) omitted
GRI 2: GEnERAL dISCLOSURES
GRI 2 GRI 3 GRI 200 GRI 300 GRI 400 Other Topics
GRI 2: General Disclosures 2021
2-29 Approach to stakeholder engagement 2025 Sustainability Report
Our Approach to Sustainability
Policies and Management Systems
Community Relations
Indigenous Relations
2-30 Collective bargaining agreements 2025 Sustainability Report
Our Workforce
2025 ESG Performance Data
Workforce tab
For employees who are not covered by collective bargaining agreements, IAMGOLD does not determine their working conditions or terms of employment by reference to collective bargaining agreements that apply to other IAMGOLD employees, nor to collective bargaining agreements from other organizations. Instead, the working conditions and terms of employment for these employees are established independently and in accordance with applicable local employment standards legislation.
2025 Sustainability Reporting Content Index
About This Report GRI Index
SASB Index
TCFD Index 7
GRI Standard/Other Source Disclosure Location/Direct Response
GRI 3: MATERIAL TOPICS
GRI 2 GRI 3 GRI 200 GRI 300 GRI 400 Other Topics
GRI 3: Material Topics 2021
Process to determine material topics 2025 Sustainability Report
Our Approach to Sustainability
3-2 List of material topics 2025 Sustainability Report
Our Approach to Sustainability
2025 Sustainability Reporting Content Index
About This Report GRI Index
SASB Index
TCFD Index 8
GRI Standard/Other Source Disclosure Location/Direct Response Omissions
GRI 200: ECOnOmIC dISCLOSURES
GRI 2 GRI 3 GRI 200 GRI 300 GRI 400 Other Topics
GRI 3: Material Topics 2021
3-3 Management of material topics 2025 Sustainability Report
Materiality Assessment
Policies and Management Systems
Business Ethics and Integrity
GRI 205: Anti-corruption 2016
205-1 Operations assessed for risks related 2025 Sustainability Report to corruption • Business Ethics and Integrity
The Internal Audit team performs periodic reviews to assess compliance with the Corruption of Foreign Public Officials Act (CFPOA) and Foreign Corrupt Practices Act (FCPA). This review occurs every two years and the last period review was conducted in 2025. No significant risks were identified.
205-2 Communication and training about anti- 2025 Sustainability Report corruption policies and procedures • Business Ethics and Integrity
205-3 Confirmed incidents of corruption and 2025 Sustainability Report actions taken • Business Ethics and Integrity
GRI 206: Anti-competitive
Behavior 2016
206-1 Legal actions for anti-competitive 2025 Sustainability Report behavior, anti-trust, and monopoly practices • Business Ethics and Integrity
2025 Sustainability Reporting Content Index
About This Report GRI Index
SASB Index
TCFD Index 9
GRI Standard/Other Source Disclosure Location/Direct Response Omissions
GRI 300: EnVIROnmEnTAL dISCLOSURES
GRI 2 GRI 3 GRI 200 GRI 300 GRI 400 Other Topics
GRI 3: Material Topics 2021
3-3 Management of material topics 2025 Sustainability Report
Materiality Assessment
Energy and Climate
GRI 302: Energy 2016
Energy consumption within 2025 Sustainability Report Requirement(s) omitted:
the organization • Energy and Climate c. total:
ESG Performance Data Summary (2023-2025) ii. heating consumption
2025 ESG Performance Data iii. cooling consumption
Energy and Emissions tab iv. steam consumption
Sources of the conversion factors include but are not limited to: Reason:
The Climate Registry Information unavailable/incomplete
US Environmental Protection Agency Explanation:
Supplier specific data Energy use is not categorized as heating, cooling, or steam consumption as this
Safety data sheets does not add value to our internal reporting processes for mining operations.
302-3 Energy intensity 2025 Sustainability Report
Energy and Climate
ESG Performance Data Summary (2023-2025)
Methodology, Restatements and Limitations
2025 ESG Performance Data
Energy and Emissions tab
GRI 305: Emissions 2016
Direct (Scope 1) GHG emissions 2025 Sustainability Report Requirement(s) omitted:
Energy and Climate c. Biogenic CO2 emissions in metric tons of CO2 equivalent
ESG Performance Data Summary (2023-2025) Reason:
2025 ESG Performance Data Not applicable
Energy and Emissions tab Explanation:
IAMGOLD uses a variety of sources for emissions factors including but not limited to: Biogenic carbon emissions are not applicable to our operations.
ESG data software system
Canada National Inventory Report
United States Environmental Protection Agency (U.S. EPA)
The Climate Registry
Supplier specific data
The Global Warming Potential rate was sourced from the Intergovernmental Panel on Climate Change's (IPCC) Fifth Assessment Report (AR5).
2025 Sustainability Reporting Content Index
About This Report GRI Index
SASB Index
TCFD Index 10
GRI Standard/Other Source Disclosure Location/Direct Response Omissions
GRI 300: EnVIROnmEnTAL dISCLOSURES
GRI 2 GRI 3 GRI 200 GRI 300 GRI 400 Other Topics
GRI 305: Emissions 2016 (continued)
305-2 Energy indirect (Scope 2) GHG emissions 2025 Sustainability Report
Energy and Climate
ESG Performance Data Summary (2023-2025)
2025 ESG Performance Data
Energy and Emissions tab
IAMGOLD uses a variety of sources for emissions factors including:
ESG data software system
Canada National Inventory Report
International Energy Agency
United Nations Framework Convention on Climate Change (UNFCCC) Clean Development Mechanism (CDM)
The Global Warming Potential rate was sourced from the Intergovernmental Panel on Climate Change's (IPCC) Fifth Assessment Report (AR5).
305-3 Other indirect (Scope 3) GHG emissions IAMGOLD published its Scope 3 emissions for the 2024 reporting period in December 2025, after our Requirement(s) omitted:
2024 Sustainability Report was published. 305-3 Other indirect (Scope 3) GHG emissions
Reason:
Information unavailable/incomplete
Explanation:
IAMGOLD is working on calculating its Scope 3 emissions for the 2025 reporting period. Data will be published before the end of 2026, similar to the 2024
Scope 3 emissions inventory.
305-4 GHG emissions intensity 2025 Sustainability Report Requirement(s) omitted:
Energy and Climate
ESG Performance Data Summary (2023-2025)
2025 ESG Performance Data
Energy and Emissions tab
305-7 Nitrogen oxides (NOx), sulfur oxides 2025 Sustainability Report a. iii. Persistent organic pollutants (POP)
(SOx), and other significant air emissions • Energy and Climate v. Hazardous air pollutants (HAP)
2025 ESG Performance Data vii. Other standard categories of air emissions identified in relevant
Energy and Emissions tab regulations
IAMGOLD's sites use a variety of sources for emissions factors and methodologies including but not Reason:
limited to: Information unavailable/incomplete
Environment and Climate Change Canada's National Pollutant Release Inventory Explanation:
U.S. EPA Data on IAMGOLD's HAPs, POPs, and other standard air emission categories can
Australian National Pollutant Inventory be accessed through the National Pollutant Release Inventory, contingent upon our operations meeting the reporting threshold
GRI 3: Material Topics 2021
3-3 Management of material topics 2025 Sustainability Report
Materiality Assessment
Water Stewardship
2025 Sustainability Reporting Content Index
About This Report GRI Index
SASB Index
TCFD Index 11
GRI Standard/Other Source Disclosure Location/Direct Response Omissions
GRI 300: EnVIROnmEnTAL dISCLOSURES
GRI 2 GRI 3 GRI 200 GRI 300 GRI 400 Other Topics
GRI 303: Water and Effluents 2018
303-1 Interactions with water as a 2025 Sustainability Report Requirement(s) omitted:
shared resource • Water Stewardship d. Explanation of the process for setting any water-related goals and targets
With IAMGOLD's enhanced water management framework, we are focusing on rolling out a clear vision that are part of the organization's approach to managing water and effluents, and enhancing our Water Management Standard that incorporates value-driven principles, industry and how they relate to public policy and the local context of each area with best practices, such as from the International Council on Mining and Metals and Towards Sustainable water stress
Mining, and subject matter experts. This process also included identifying key performance indicators and Reason:
adopting an integrated, watershed-level approach that considers the broader impact beyond our own Information unavailable/incomplete operations. This approach looked at the local context of the region in which our mines operate.
Explanation:
IAMGOLD does not disclose the relation of our water goals in alignment with public policy and local context of water stress.
303-2 Management of water discharge-related 2025 Sustainability Report impacts • Water Stewardship
303-3 Water withdrawal 2025 Sustainability Report
Water Stewardship
ESG Performance Data Summary (2023-2025)
2025 ESG Performance Data
Water tab
303-4 Water discharge 2025 Sustainability Report Requirement(s) omitted:
Water Stewardship d. Priority substances of concern for which discharges are treated
ESG Performance Data Summary (2023-2025) Reason:
2025 ESG Performance Data Information unavailable/incomplete
Water tab Explanation:
We collect site-level and corporate data through an ESG reporting software that outlines the specific Information on substances of concern for discharges are treated is available requirements and instructions for the information to be reported. Additionally, we have developed through IAMGOLD's provincial and federal environmental reporting.
an internal ESG glossary that defines key terms, calculation formulas, and methodologies based
on internationally recognized standards and frameworks such as the Global Reporting Initiative, Sustainability Accounting Standards Board, and the International Council on Mining and Metals. This approach supports our voluntary and market-led sustainability reporting efforts by supporting consistency across sites and alignment with our reporting needs and requirements. Many of the
indicators, such as water use, waste and air emissions, are also reported to regulators in jurisdictions where we operate, subject to applicable reporting thresholds. Data collection methods differ across our sites and include but are not limited to direct measurements from flow meters and estimations of data.
303-5 Water consumption 2025 Sustainability Report
Water Stewardship
ESG Performance Data Summary (2023-2025)
2025 ESG Performance Data
Water tab
As water consumption is not directly measured as per GRI, water consumption is calculated as follows: water withdrawal minus water discharge minus change in water storage.
GRI 3: Material Topics 2021
3-3 Management of material topics 2025 Sustainability Report
Materiality Assessment
Biodiversity and Land Use
2025 Sustainability Reporting Content Index
About This Report GRI Index
SASB Index
TCFD Index 12
GRI Standard/Other Source Disclosure Location/Direct Response Omissions
GRI 300: EnVIROnmEnTAL dISCLOSURES
GRI 2 GRI 3 GRI 200 GRI 300 GRI 400 Other Topics
GRI 101: Biodiversity 2024
101-1 Policies to halt and reverse biodiversity loss
2025 Sustainability Report
Biodiversity and Land Use
Biodiversity Management Policy
Requirement(s) omitted:
c. report the goals and targets to halt and reverse biodiversity loss, whether they are informed by scientific consensus, the base year, and the indicators used to evaluate progress
Reason:
Information unavailable/incomplete
Explanation:
We are currently focused on developing a biodiversity accounting framework that can measure biodiversity loss/gain and the impacts of our direct operations on biodiversity and have not publicly disclosed targets related to biodiversity. We are continuing to monitor the global evolution of biodiversity accounting and the potential for universal metrics, and will continue our work, with the intention developing a long-term, biodiversity-oriented rehabilitation and offset strategy.
101-2 Management of biodiversity impacts
2025 Sustainability Report
Requirement(s) omitted:
Biodiversity and Land Use
c. with reference to 101-2-a-iv, report for each offset:
ESG Performance Data Summary (2023-2025)
i. the goals;
2025 ESG Performance Data
Biodiversity and Land Use tab
During the construction phase, we aim to minimize impacts on biodiversity by implementing measures that avoid or reduce disturbances to natural habitats. Through this approach, we aim to integrate biodiversity considerations into project planning and execution.
the geographic location;
whether and how principles of good offset practices are met;
whether and how the offset is certified or verified by a third party
e. describe how it enhances synergies and reduces trade-offs between actions taken to manage its biodiversity and climate change impacts
f. describe how it ensures that the actions taken to manage its impacts on biodiversity avoid and minimize negative impacts and maximize positive impacts for stakeholders
Reason:
Information unavailable/incomplete
Explanation:
IAMGOLD implements compensation projects as required by local regulations. For example, Côté Gold's Fisheries Offsetting Plan, which aims to restore fish habitats affected by mining and requires approval from the Department of Fisheries and Oceans.
In 2025, IAMGOLD completed an updated physical climate risk assessment that looked at scenarios SSP1-1.9 and SSP5-8.5 over the 2035-, 2050- and 2080-time horizons for each operating site. The potential impact of climate variables were assessed against our Enterprise Risk Management criteria, examining potential consequences on financial, operational, health and safety, environment, and communities.
IAMGOLD has not made a complete determination on the synergies and trade-offs between actions taken to manage biodiversity and climate change impacts.
We are currently focused on developing a biodiversity accounting framework that can measure biodiversity loss/gain and the impacts of our direct operations on biodiversity.
2025 Sustainability Reporting Content Index
About This Report GRI Index
SASB Index
TCFD Index 13
GRI Standard/Other Source Disclosure Location/Direct Response Omissions
GRI 300: EnVIROnmEnTAL dISCLOSURES
GRI 2 GRI 3 GRI 200 GRI 300 GRI 400 Other Topics
GRI 101: Biodiversity 2024 (continued)
101-4 Identification of biodiversity impacts
2025 Sustainability Report
Biodiversity and Land Use
101-5 Locations with biodiversity impacts
Côté Gold is not located in or near any protected areas. However, the site is located in an area of cultural or community importance including ecosystems that are vital to Indigenous Peoples or local communities for their livelihoods, traditions, or spiritual practices. The site also has range overlap with a listed IUCN endangered species.
Aiguebelle National Park is located approximately 1-2 km and 30-40 km from Fayolle and Westwood, respectively. Westwood is also located in proximity to Lacs-Vaudray-and-Joannès Biodiversity Reserve.
Essakane's mining concession is located inside the 1,600,000-hectare Sahel Sylvo-pastoral Reserve and Partial Wildlife Reserve. It is a designated zone primarily because of temporary lakes (Mare d'Oursi, Mare de Yomboli, Mare de Kissi) which are of importance for migratory birds. The Mare d'Oursi Wetlands are located approximately 67 km from site, the Mare de Darkoye is approximately 40 km from the site, and the Mare of Yomboli is located approximately 53 km from the site, all of which are located within the reserve.
Mining is permitted in this area and an annual species inventory is conducted to assess and demonstrate that Essakane does not impact the area. Essakane is considered to be located in an area of high physical water risk.
GRI 14: Mining Sector 2024
14.8.6 Land disturbed and rehabilitated
2025 Sustainability Report
Biodiversity and Land Use
ESG Performance Data Summary (2023-2025)
2025 ESG Performance Data
Biodiversity and Land tab
GRI 3: Material Topics 2021
3-3 Management of material topics
2025 Sustainability Report
Materiality Assessment
Tailings and Waste Management
2023 Tailings Management Report
GRI 306: Waste 2020
306-1 Waste generation and significant waste-related impacts
2025 Sustainability Report
Tailings and Waste Management
306-2 Management of significant waste-related impacts
2025 Sustainability Report
Tailings and Waste Management
Each site has their own management systems and tools. For specific indicators, site-level data is then aggregated into an enterprise ESG reporting software. Our Corporate team provides specific requirements and instructions for reporting to support consistency. Additionally, we have developed an internal ESG glossary that defines key terms, calculation formulas, and methodologies. In 2025, we implemented a new ESG reporting and carbon software to support improved data collection processes, data traceability and internal controls. This approach supports our voluntary and market-led sustainability reporting efforts by supporting consistency across sites and alignment with our reporting needs and requirements. Many of the indicators, such as waste, water use, and air emissions, are also reported to regulators in jurisdictions where we operate, subject to applicable reporting thresholds.
2025 Sustainability Reporting Content Index
About This Report GRI Index
SASB Index
TCFD Index 14
GRI Standard/Other Source Disclosure Location/Direct Response Omissions
GRI 300: EnVIROnmEnTAL dISCLOSURES
GRI 2 GRI 3 GRI 200 GRI 300 GRI 400 Other Topics
GRI 306: Waste 2020
(continued)
306-3 Waste generated 2025 Sustainability Report
Tailings and Waste Management
ESG Performance Data Summary (2023-2025)
2025 ESG Performance Data
Tailings and Waste tab
Each site has their own management systems and tools. For specific indicators, site-level data is then aggregated into an enterprise ESG reporting software. Our Corporate team provides specific requirements and instructions for reporting to support consistency. Additionally, we have developed an internal ESG glossary that defines key terms, calculation formulas, and methodologies. In 2025, we implemented a new ESG reporting and carbon software to support improved data collection processes, data traceability and internal controls. This approach supports our voluntary and market-led sustainability reporting efforts by supporting consistency across sites and alignment with our reporting needs and requirements. Many of the indicators, such as waste, water use, and air emissions, are also reported to regulators in jurisdictions where we operate, subject to applicable reporting thresholds.
306-4 Waste diverted from disposal 2025 Sustainability Report
Tailings and Waste Management
ESG Performance Data Summary (2023-2025)
2025 ESG Performance Data
Tailings and Waste tab
Each site has their own management systems and tools. For specific indicators, site-level data is then aggregated into an enterprise ESG reporting software. Our Corporate team provides specific requirements and instructions for reporting to support consistency. Additionally, we have developed an internal ESG glossary that defines key terms, calculation formulas, and methodologies. In 2025, we implemented a new ESG reporting and carbon software to support improved data collection processes, data traceability and internal controls. This approach supports our voluntary and market-led sustainability reporting efforts by supporting consistency across sites and alignment with our reporting needs and requirements. Many of the indicators, such as waste, water use, and air emissions, are also reported to regulators in jurisdictions where we operate, subject to applicable reporting thresholds.
306-5 Waste directed to disposal 2025 Sustainability Report
Tailings and Waste Management
ESG Performance Data Summary (2023-2025)
2025 ESG Performance Data
Tailings and Waste tab
Each site has their own management systems and tools. For specific indicators, site-level data is then aggregated into an enterprise ESG reporting software. Our Corporate team provides specific requirements and instructions for reporting to support consistency. Additionally, we have developed an internal ESG glossary that defines key terms, calculation formulas, and methodologies. In 2025, we implemented a new ESG reporting and carbon software to support improved data collection processes, data traceability and internal controls. This approach supports our voluntary and market-led sustainability reporting efforts by supporting consistency across sites and alignment with our reporting needs and requirements. Many of the indicators, such as waste, water use, and air emissions, are also reported to regulators in jurisdictions where we operate, subject to applicable reporting thresholds.
2025 Sustainability Reporting Content Index
About This Report GRI Index
SASB Index
TCFD Index 15
GRI Standard/Other Source Disclosure Location/Direct Response Omissions
GRI 300: EnVIROnmEnTAL dISCLOSURES
GRI 2 GRI 3 GRI 200 GRI 300 GRI 400 Other Topics
GRI G4
MM3 Total amounts of overburden rock, tailings, and sludges and their associated risks
2025 Sustainability Report
Tailings and Waste Management
2025 ESG Performance Data
Tailings and Waste tab
2023 Tailings Management Report
GRI 3: Material Topics 2021
3-3 Management of material topics
2025 Sustainability Report
Materiality Assessment
Mine Closure and Reclamation
Requirement(s) omitted:
e. report the following information about tracking the effectiveness of the actions taken:
goals, targets, and indicators used to evaluate progress;
the effectiveness of the actions, including progress toward the goals and targets; lessons learned and how these have been incorporated into the organization's operational policies and procedure
Reason:
Information unavailable/incomplete
Explanation:
Our closure plans are regularly updated throughout the Life of Mine (LOM) or every five years, as required by regulations. A Closure Plan Committee is
established at each site and a Corporate Closure Committee to oversee regulatory compliance, closure plan development, and alignment with operational planning. We are currently focused on updating our closure plans and have not publicly disclosed targets related to closure and reclamation.
GRI G4
MM10 Number and percentage of operations with closure plans
2025 Sustainability Report
Mine Closure and Reclamation
All (100%) of IAMGOLD's operational sites have closure plans.
2025 Sustainability Reporting Content Index
About This Report GRI Index
SASB Index
TCFD Index 16
GRI Standard/Other Source Disclosure Location/Direct Response Omissions
GRI 400: SOCIAL dISCLOSURES
GRI 2 GRI 3 GRI 200 GRI 300 GRI 400 Other Topics
GRI 3: Material Topics 2021
3-3 Management of material topics
2025 Sustainability Report
Materiality Assessment
Health, Safety and Wellness
GRI 403: Occupational Health and Safety 2018
403-1 Occupational health and safety management system
2025 Sustainability Report
Policies and Management Systems
Health, Safety and Wellness
403-2 Hazard identification, risk assessment, and incident investigation
2025 Sustainability Report
Health, Safety and Wellness
403-3 Occupational health services
2025 Sustainability Report
Health, Safety and Wellness
403-4 Worker participation, consultation, and communication on occupational health and safety
2025 Sustainability Report
Health, Safety and Wellness
403-5 Worker training on occupational health and safety
2025 Sustainability Report
Health, Safety and Wellness
403-6 Promotion of worker health
2025 Sustainability Report
Health, Safety and Wellness
403-7 Prevention and mitigation of occupational health and safety impacts directly linked by business relationships
2025 Sustainability Report
Health, Safety and Wellness
403-8 Workers covered by an occupational health and safety management system
2025 Sustainability Report
Towards Sustainable Mining Performance
Health, Safety and Wellness
403-9 Work-related injuries
2025 Sustainability Report
Health, Safety and Wellness
ESG Performance Data Summary (2023-2025)
2025 ESG Performance Data
Health and Safety tab
403-10 Work-related ill health
2025 ESG Performance Data
Health and Safety tab
Requirement(s) omitted:
b. Work-related ill health for all workers who are not employees but whose work and/or workplace is controlled by the organization
Reason:
Confidentiality constraints
Explanation:
IAMGOLD does not have access to contractor data on ill-health.
2025 Sustainability Reporting Content Index
About This Report GRI Index
SASB Index
TCFD Index 17
GRI Standard/Other Source Disclosure Location/Direct Response Omissions
GRI 400: SOCIAL dISCLOSURES
GRI 2 GRI 3 GRI 200 GRI 300 GRI 400 Other Topics
GRI 3: Material Topics 2021
3-3 Management of material topics
2025 Sustainability Report
Materiality Assessment
Our Workforce
GRI 401: Employment 2016
401-1 New employee hires and employee turnover
2025 Sustainability Report
Our Workforce
ESG Performance Data Summary (2023-2025)
2025 ESG Performance Data
Requirement(s) omitted:
Total number and rate of new employee hires by age group
Total number and rate of employee turnover by age group, gender and region.
Reason:
Information unavailable/incomplete
Explanation:
IAMGOLD currently does not report new hires by age group as it is not considered a key metric for our current reporting focus. In the future we may consider disclosing this data.
IAMGOLD currently reports the turnover rate of the overall organization.
401-2 Benefits provided to full-time employees that are not provided to temporary or part-time employees
2025 ESG Performance Data
Workforce tab
Requirement(s) omitted:
a. Benefits which are standard for full-time employees of the organization but are not provided to temporary or part-time employees
Reason:
Information unavailable/incomplete
Explanation:
IAMGOLD does not disclose details on all benefits provided to full-time employees due to the variability of benefits across our operations.
401-3 Parental leave
2025 ESG Performance Data
Workforce tab
GRI 402: Labor/Management
402-1 Minimum notice periods regarding
2025 Sustainability Report
Relations 2016
operational changes
Our Workforce
2025 ESG Performance Data
Workforce tab
GRI 404: Training and Education 2016
404-1 Average hours of training per year per employee
2025 ESG Performance Data
Workforce tab
404-2 Programs for upgrading employee skills and transition assistance programs
2025 Sustainability Report
Our Workforce
2025 ESG Performance Data
Workforce tab
404-3 Percentage of employees receiving regular performance and career development reviews
2025 Sustainability Report
Our Workforce
2025 ESG Performance Data
Workforce tab
2025 Sustainability Reporting Content Index
About This Report GRI Index
SASB Index
TCFD Index 18
GRI Standard/Other Source Disclosure Location/Direct Response Omissions
GRI 400: SOCIAL dISCLOSURES
GRI 2 GRI 3 GRI 200 GRI 300 GRI 400 Other Topics
GRI 3: Material Topics 2021
3-3 Management of material topics
2025 Sustainability Report
Materiality Assessment
Equity, Diversity and Inclusion
GRI 405: Diversity and Equal Opportunity 2016
405-1 Diversity of governance bodies and employees
2025 Sustainability Report
Equity, Diversity and Inclusion
ESG Performance Data Summary (2023-2025)
2025 ESG Performance Data
Workforce tab
Requirement(s) omitted:
a. ii. Percentage of individuals within the organization's governance bodies by age group
Reason:
Information unavailable/incomplete
Explanation:
IAMGOLD does not disclose diversity of governance bodies by age group; however, ages of Board members can be found in the 2026 Management Information Circular.
405-2 Ratio of basic salary and remuneration of women to men
2025 ESG Performance Data
Workforce tab
IAMGOLD's significant locations of operation include our three operating sites.
GRI 406: Non-discrimination 2016
406-1 Incidents of discrimination and corrective actions taken
2025 Sustainability Report
Equity, Diversity and Inclusion
GRI 3: Material Topics 2021
3-3 Management of material topics
2025 Sustainability Report
Materiality Assessment
Human Rights and Security
2025 Fighting Against Forced Labour and Child Labour in Supply Chains Report
GRI 410: Security Practices 2016
410-1 Security personnel trained in human rights policies or procedures
2025 Sustainability Report
Human Rights and Security
2025 ESG Performance Data
Ethics and Compliance tab
GRI 3: Material Topics 2021
3-3 Management of material topics
2025 Sustainability Report
Materiality Assessment
Our Approach to Sustainability
Indigenous Relations
GRI 411: Rights of Indigenous Peoples 2016
411-1 Incidents of violations involving rights of indigenous peoples
2025 Sustainability Report
Community Relations
GRI 3: Material Topics 2021
3-3 Management of material topics
2025 Sustainability Report
Materiality Assessment
Community Relations
2025 Sustainability Reporting Content Index
About This Report GRI Index
SASB Index
TCFD Index 19
GRI Standard/Other Source Disclosure Location/Direct Response Omissions
GRI 400: SOCIAL dISCLOSURES
GRI 2 GRI 3 GRI 200 GRI 300 GRI 400 Other Topics
GRI 413: Local Communities 2016
413-1 Operations with local community engagement, impact assessments, and development programs
2025 Sustainability Report
Community Relations
Indigenous Relations
413-2 Operations with significant actual and potential negative impacts on local communities
2025 Sustainability Report
Community Relations
GRI 3: Material Topics 2021
3-3 Management of material topics
2025 Sustainability Report
Human Rights and Security
IAMGOLD continues to actively monitor activities of artisanal and small-scale mining adjacent to Essakane.
GRI G4
MM8 Number (and percentage) of company operating sites with artisanal and small-scale mining (ASM) taking place on, or adjacent
to, the site; describe the associated risks and the actions taken to manage and mitigate
these risks
2025 Sustainability Report
Human Rights and Security
33.3% of IAMGOLD's sites (Essakane) have artisanal and small-scale mining taking place on or adjacent to the site.
2025 Sustainability Reporting Content Index
About This Report GRI Index
SASB Index
TCFD Index 20
GRI 2 GRI 3 GRI 200 GRI 300 GRI 400 Other Topics
GRI Standard/Other Source Disclosure Location/Direct Response Omissions
The following topics were not identified as material through our latest materiality assessment; however, we recognize that they are of interest to our stakeholders and report on them accordingly.
GRI 201: Economic
Performance 2016
201-1 Direct economic value generated and distributed
2025 Sustainability Report
Community Relations
2025 ESG Performance Data
Economic Performance tab
201-3 Defined benefit plan obligations and other retirement plans
Depending on the location, IAMGOLD offers both mandatory and voluntary contribution plans. For example, at Corporate, IAMGOLD contributes 5% and matches 50% of an employee's contribution up to 3% (maximum of 8%).
Requirement(s) omitted:
If the plan's liabilities are met by the organization's general resources, the estimated value of those liabilities.
If a separate fund exists to pay the plan's pension liabilities:
the extent to which the scheme's liabilities are estimated to be covered by the assets that have been set aside to meet them;
the basis on which that estimate has been arrived at;
when that estimate was made.
If a fund set up to pay the plan's pension liabilities is not fully covered, explain the strategy, if any, adopted by the employer to work towards full coverage, and the timescale, if any, by which the employer hopes to achieve full coverage.
Reason:
Information unavailable/incomplete
Explanation:
Due to the variation in benefit plan obligations and retirement plans across the different jurisdictions where we operate, specific details regarding pension liabilities and contributions are not disclosed.
201-4 Financial assistance received from government
2025 ESG Performance Data
Economic Performance tab
GRI 3: Material Topics 2021
3-3 Management of material topics
2025 Sustainability Report
Our Supply Chain
GRI 204: Procurement
Practices 2016
204-1 Proportion of spending on local suppliers
2025 Sustainability Report
Our Supply Chain
2025 ESG Performance Data
Economic Performance tab
IAMGOLD's significant locations of operation include our three operating sites.
GRI 3: Material Topics 2021
3-3 Management of material topics
2025 Sustainability Report
Business Ethics and Integrity
GRI 207: Tax 2019
207-1 Approach to tax
2025 Sustainability Report
Business Ethics and Integrity
Disclaimer
IAMGOLD Corporation published this content on April 23, 2026, and is solely responsible for the information contained herein. Distributed via Public Technologies (PUBT), unedited and unaltered, on April 23, 2026 at 15:59 UTC.