This technical report presents a definitive feasibility study update for the Posse Gold Project in Brazil, based on metallurgical testwork, process design criteria, and historical operating data.
Report context
The technical report is dated February 18, 2022, with an effective date of December 31, 2021, and was prepared for Amarillo Gold Corporation. The report covers the Posse Gold Project located in Brazil and includes a technical update on the definitive feasibility study. The report was compiled by SRK Consultores do Brasil Ltda under SRK Project Number 001-22.
Processing route
History of Test Work
The report documents a history of metallurgical test work conducted for the project. Sample collection and representivity were addressed through multiple phases of testing. Previous test work was completed prior to the current study period.
Test Work Discussion
The test work discussion section provides detailed information on the metallurgical testing program. Key criteria were identified through the testing process. The extraction prediction section presents the anticipated gold recovery performance based on the completed test work.
Recovery Methods
The report outlines recovery methods in Section 17, which includes process design criteria, process plant description, process plant layout, and major process equipment specifications. The process plant description provides details on the proposed processing facilities.
Key Criteria
Section 13.6 of the report identifies key criteria derived from the test work program. These criteria form the basis for the process design and equipment selection.
Extraction Prediction
Section 13.7 presents the extraction prediction for the project. This prediction is based on the metallurgical test work results and defines the expected gold recovery performance for the proposed processing route.
Conclusion
Section 13.8 provides conclusions from the mineral processing and metallurgical testing program. The conclusions summarize the findings from the test work and their implications for the project design.
Key reported parameters
| Parameter | Value | Unit | Basis |
|---|---|---|---|
| Process design criteria | As defined in Section 17.1 | Various | Proposed design |
| Major process equipment | As defined in Section 17.4 | Various | Proposed design |
| Metallurgical test work | Multiple phases | , | Testwork |
| Historical test work | Previous studies | , | Historical operating data |
| Extraction prediction | Section 13.7 | % recovery | Testwork |
Project website: https://amarillogold.com/portfolio/reserves-and-resources/default.aspx
Project website: https://amarillogold.com/portfolio/development-project/default.aspx
Technical qualifications
The report contains specific limitations related to the metallurgical test work and process design. The test work results are based on representative samples collected from the deposit. The process design criteria are preliminary and subject to change based on additional test work and detailed engineering. The extraction prediction is based on the completed test work program and may not represent actual plant performance. The report does not include detailed operating data from a producing mine, as the project is in the feasibility study stage.
Source: Technical Update on the Definitive Feasibility Study Posse Gold Project, Brazil, dated February 18, 2022, effective December 31, 2021. Sections 1.4, 13, and 17.
