This technical report details the mineral processing and metallurgical testing, resource and reserve estimates, mining methods, and recovery methods for the Porgera Joint Venture in Papua New Guinea as of March 2012.
Report context
This NI 43-101 technical report on the Porgera Joint Venture, located in Enga Province, Papua New Guinea, was prepared by Roscoe Postle Associates Inc. for Barrick Gold Corporation and issued March 16, 2012. The report covers mineral processing and metallurgical testing, mineral resource and open pit and underground models, mineral reserve estimates and model reconciliation, open pit and underground mining methods, and recovery methods.
Processing route
Mineral Processing and Metallurgical Testing
The report contains a section (Section 13) dedicated to mineral processing and metallurgical testing. This section forms part of the technical basis for the project evaluation.
Recovery Methods
The report includes a recovery methods section (Section 17) that describes the proposed or existing processing and recovery approach for the Porgera operation. Specific flowsheet details are not available from the provided report sections.
Mineral Resource and Reserve Estimates
The mineral resource estimate (Section 14) includes open pit models and underground models. The mineral reserve estimate (Section 15) provides a summary and model reconciliation information.
Mining Methods
Open pit operation description (Section 16) and underground mine description (Section 16) are included in the report, detailing the proposed and/or historical mining approaches.
Key reported parameters
| Parameter | Reported Value | Basis |
|---|---|---|
| Report Date | March 16, 2012 | Document issue date |
| Project | Porgera Joint Venture | Report title |
| Location | Enga Province, Papua New Guinea | Report title |
| Mineral Resource Estimate | Open pit and underground models | Section 14 |
| Mineral Reserve Estimate | Summary and model reconciliation | Section 15 |
| Mining Methods | Open pit and underground | Section 16 |
| Processing and Metallurgical Testing | Section 13 | Section 13 |
| Recovery Methods | Section 17 | Section 17 |
Project website: https://www.barrick.com/English/operations/porgera/default.aspx
Technical qualifications
This report is an NI 43-101 technical report prepared by Roscoe Postle Associates Inc. The report contains qualified persons responsible for specific sections. The report is a final version (Rev 0) issued March 16, 2012. The specific limitations of the report are not detailed in the provided sections, and no testwork results, historical operating data, or design specifics are included in the source material provided.
Source: Technical Report on the Porgera Joint Venture, Enga Province, Papua New Guinea, March 16, 2012, Sections 13, 14, 15, 16, 17.
