1. "Tailings Dam" Name/Identifier 2. Location 3. Ownership 4. Status 5. Date of initial operation 6. Is the Dam currently operated or closed as per currently approved design? 7. Raising method 8. Current Maximum Height (Meter) 9. Current Tailings Storage Impoundment Volume (Mm3) 10. Planned Tailings Storage Impoundment Volume in 5 years time. (Mm3) 11.Most recent Independent Expert Review 12. Do you have full and complete relevant engineering records including design, construction, operation, maintenance and/or closure. 13. What is your hazard categorisation of this facility, based on consequence of failure? 14. What guideline do you follow for the classification system? 15. Has this facility, at any point in its history, failed to be confirmed or certified as stable, or experienced notable stability concerns, as identified by an independent engineer (even if later certified as stable by the same or a different firm). 16. Do you have internal/in house engineering specialist oversight of this facility? Or do you have external engineering support for this purpose? 17. Has a formal analysis of the downstream impact on communities, ecosystems and critical infrastructure in the event of catastrophic failure been undertaken and to reflect final conditions? If so, when di this assessment take place? 18. Is there a) a closure plan in place for this dam, and b) does it include long term monitoring? 19. Have you, or do you plan to assess your tailings facilities against the impact of more regular extreme weather events as a result of climate change, e.g. over the next two years? 20. Any other relevant information and supporting documentation. Please state if you have omitted any other exposure to tailings facilities through any joint ventures you may have. MRN - SP-9A Oriximiná, Pará, Brazil 1° 40.095'S, 56° 27.725'W Non-operate d Joint Venture Active 2006 Yes Single Step 12.0 2.17 2.44 Mar-19 Yes Medium Ordinance 70.389/17 - ANM (Mining National Agency), Brazil No Both Yes. June 2018 Yes. No. Yes 12. The available documents are sufficient to ensure the safety of the structure, including an independent stability report. 14. The classification is done by the independent auditor. 17. There is a Dam Break study. 18. It was developed a conceptual closure plan for the entire facility. 19.The structures are being evaluated for a rainfall of 10,000 years. The project until then considered the service during the operation to a rainfall of 1,000 years of recurrence. MRN - SP-10 Oriximiná, Pará, Brazil 1° 40.995'S, 56° 27.179'W Non-operate d Joint Venture Active 2007 Yes Single Step 16.0 7.64 8.30 Mar-19 Yes High Ordinance 70.389/17 - ANM (Mining National Agency), Brazil No Both Yes. June 2018 Yes. No. Yes 12. The available documents are sufficient to ensure the safety of the structure, including an independent stability report. 13. The classification was performed by independent auditing (March, 19) and needs to be validated by the mining regulatory agency. 14. The classification is done by the independent auditor. 17. There is a Dam Break study. 18. It was developed a conceptual closure plan for the entire facility. 19.The structures are being evaluated for a rainfall of 10,000 years. The project until then considered the service during the operation to a rainfall of 1,000 years of recurrence. MRN - SP-11 Oriximiná, Pará, Brazil 1° 40.988'S, 56° 27.763'W Non-operate d Joint Venture Active 2008 Yes Single Step 16.0 6.97 7.80 Mar-19 Yes High Ordinance 70.389/17 - ANM (Mining National Agency), Brazil No Both Yes. June 2018 Yes. No. Yes 12. The available documents are sufficient to ensure the safety of the structure, including an independent stability report. 13. The classification was performed by independent auditing (March, 19) and needs to be validated by the mining regulatory agency. 14. The classification is done by the independent auditor. 17. There is a Dam Break study. 18. It was developed a conceptual closure plan for the entire facility. 19.The structures are being evaluated for a rainfall of 10,000 years. The project until then considered the service during the operation to a rainfall of 1,000 years of recurrence. MRN - SP-12 Oriximiná, Pará, Brazil 1° 41.189'S, 56° 28.144'W Non-operate d Joint Venture Active 2009 Yes Single Step 15.0 5.14 6.00 Mar-19 Yes Medium Ordinance 70.389/17 - ANM (Mining National Agency), Brazil No Both Yes. June 2018 Yes. No. Yes 12. The available documents are sufficient to ensure the safety of the structure, including an independent stability report. 14. The classification is done by the independent auditor. 17. There is a Dam Break study. 18. It was developed a conceptual closure plan for the entire facility. 19.The structures are being evaluated for a rainfall of 10,000 years. The project until then considered the service during the operation to a rainfall of 1,000 years of recurrence. MRN - SP-13 Oriximiná, Pará, Brazil 1° 41.643'S, 56° 28.070'W Non-operate d Joint Venture Active 2010 Yes Single Step 15.0 2.11 3.20 Mar-19 Yes Medium Ordinance 70.389/17 - ANM (Mining National Agency), Brazil No Both Yes. June 2018 Yes. No. Yes 12. The available documents are sufficient to ensure the safety of the structure, including an independent stability report. 14. The classification is done by the independent auditor. 17. There is a Dam Break study. 18. It was developed a conceptual closure plan for the entire facility. 19.The structures are being evaluated for a rainfall of 10,000 years. The project until then considered the service during the operation to a rainfall of 1,000 years of recurrence.