This report presents a preliminary economic assessment of the Cap Oeste Suroeste (COSE) Project in Santa Cruz Province, Argentina, effective 10 August 2012.
Report context
The COSE Project technical report was prepared for Patagonia Gold PLC with an effective date of 10 August 2012. The report documents a preliminary economic assessment covering mineral resources, mining methods, and recovery methods for the Cap Oeste Suroeste project located in Santa Cruz Province, Argentina. The document includes sections on property description, geology, mineralization, exploration, drilling, sampling, assaying, data verification, mineral resource estimates, mining methods, and recovery methods.
Processing route
Historical and testwork basis
The processing and metallurgical testing section of the report includes gravitational concentration testing and bottle roll tests. Screen fire assays were performed as part of the metallurgical testwork program. The report indicates that preliminary results from these tests informed the proposed process design, though specific numerical outcomes from individual tests are not presented in the available sections.
Proposed process
The proposed process is described in the report under Section 17.5, which outlines the conceptual processing flowsheet for the project. The report does not provide additional details on equipment selection, mass balances, or plant layout within the extract provided.
Key reported parameters
| Parameter | Value | Basis |
|---|---|---|
| Report effective date | 10 August 2012 | Design basis for PEA |
| Project location | Santa Cruz Province, Argentina | Property description |
| Mineral processing testing | Screen fire assays, gravitational concentration, bottle roll tests | Testwork |
| Proposed process | Described in Section 17.5 | Proposed design |
| Resource estimation | PGSA resource model and CAM resource estimation | Historical and review |
| Resource classification | CAM classification system | Resource statement |
Project website: https://patagoniagold.com/
Technical qualifications
The report contains several sections that are referenced in the table of contents but not fully reproduced in the provided text, including mineral resource estimates (Section 14.0), mining methods (Section 16.0), and recovery methods (Section 17.0). Specific resource tonnages, grades, economic parameters, and detailed process design criteria are not available in the current extract. The proposed process design is preliminary in nature, consistent with a preliminary economic assessment, and does not constitute a feasibility study.
Source: NI 43-101 Technical Report Preliminary Economic Assessment Cap Oeste Suroeste (COSE) Project Santa Cruz Province, Argentina, effective 10 August 2012, Sections 1.0, 14.0, 16.0, and 17.0.

