Minas-Rio

Assessment scope

The scope included extraction of iron ore from its open pit, crushing, screening and processing facilities, waste rock storage, tailings storage facility, sediment and water control dams, fuel handling and storage areas, water and wastewater treatment plants, vehicle and equipment maintenance facilities, operations building, monitoring stations and control rooms, security guard house, warehouses, locker rooms, clinic, laboratory, restaurant, administrative office building, and select groundwater wells, archeological and environmental monitoring, transportation routes and emergency preparedness locations.

The pipeline and port were not included within the audit scope.

The audit firm determined that the following chapters of the IRMA Standard were not relevant for this audit:

• 2.2 – Free, Prior and Informed Consent
• 3.4 – Mining in Conflict-Affected and High-Risk Areas
• 3.6 – Artisanal and Small-Scale Mining
• 4.7 – Cyanide Management
• 4.8 – Mercury Management

Assessment scope

The onsite surveillance audit will verify that the site operations continue to align with the performance previously recognized in the initial audit report. The audit team will verify that the mine’s systems and controls are still in place and are functioning effectively, that no major changes have occurred that negatively affect the mine’s performance, and that the site is progressing on its corrective action plan. The audit will also include confidential interviews with workers and engagement with Indigenous rightsholders and community stakeholders.