Briefing
Inferred Mineral Resources must not be included in the economic analysis, production schedules, or estimated mine life in publicly disclosed Pre-Feasibility or Feasibility Studies, or in the Life of Mine plans and cash flow models of developed mines. Key points: Inferred Mineral Resources must not be included in the economic analysis, production schedules, or estimated mine life in publicly disclosed Pre-Feasibility or Feasibility Studies, or in the Life of Mine plans and cash f; The assay results for gold ranged from 0.34 g/t Au to 51.01 g/t Au; The total number of pulp duplicates that failed is 144, but only 3 of the failed duplicates returned values, above 0.5 g/t Au, and have more than 20% difference from the original result; An Indicated Mineral Resource estimate is of sufficient quality to support a Pre-Feasibility Study which can serve as the basis for major development decisions; The public disclosure of a Mineral Reserve must be demonstrated by a Pre-Feasibility Study or Feasibility Study; 115 Figure 12.1 Original Assay Results (MSALabs g/t Au) vs Coarse Rejects Assay Results (Actlabs g/t Au) ................................................................................................................... This brief is based on the cited source artifact and is intended as a research entry point, not a replacement for the original source or EGM canonical data tables.
Source Notes
Inferred Mineral Resources must not be included in the economic analysis, production schedules, or estimated mine life in publicly disclosed Pre-Feasibility or...
Extractive summary evidence · source
The assay results for gold ranged from 0.34 g/t Au to 51.01 g/t Au.
Extractive summary evidence 2 · source
The total number of pulp duplicates that failed is 144, but only 3 of the failed duplicates returned values, above 0.5 g/t...
Extractive summary evidence 3 · source
An Indicated Mineral Resource estimate is of sufficient quality to support a Pre-Feasibility Study which can serve as the basis for major...
Extractive summary evidence 4 · source
Extracted Document Text
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# 2025 MRE Technical Report Source: https://g2goldfields.com/wp-content/uploads/2025/04/Oko-Gold-Project-Guyana-MRE-2025-Update.pdf Published: 2025-04-24T00:00:00+00:00 Fetched: 2026-05-12T13:06:48.019+00:00 Source artifact: c7b48def-398e-4379-938e-5fb0a5a3b1d3 Normalizer input: text ## Content # 2025 MRE Technical Report NI 43-101 Technical Report for the 2025 Updated Mineral Resource Estimate for the Oko Gold Property in the Co-operative Republic of Guyana, South America Effective Date: March 1, 2025 Report Date: April 24, 2025 Prepared By: William J. Lewis, P.Geo. Chitrali Sarkar, P.Geo. Alan J. San Martin, P.Eng. Richard Gowans, P.Eng. G2 GOLDFIELDS INC. Suite 1101 - 141 Adelaide Street, West Toronto, Ontario Canada, M5H 3L5 Tel: 1.416.628.5904 601 – 90 Eglinton Ave East, Toronto, Ontario, Canada M4P 2Y3 +1 416 362 5135 | www.micon-international.com Page Table of Contents 1.0 SUMMARY ............................................................................................................... 1 1.1 INTRODUCTION........................................................................................................................... 1 1.2 LOCATION, PROPERTY DESCRIPTION AND OWNERSHIP ........................................................... 2 1.3 INFRASTRUCTURE, CLIMATE AND TOPOGRAPHY ...................................................................... 3 1.4 HISTORY ...................................................................................................................................... 3 1.5 GEOLOGICAL SETTINGS AND MINERALIZATION ........................................................................ 4 1.5.1 Regional Geology ............................................................................................................... 4 1.5.2 Property Geology ............................................................................................................... 5 1.5.3 Geological Structures......................................................................................................... 6 1.5.4 Structural Geology and Mineralization ............................................................................. 6 1.6 DEPOSIT TYPES ........................................................................................................................... 7 1.7 GENERAL EXPLORATION PROGRAMS ......................................................................................... 7 1.7.1 General Discussion ............................................................................................................. 7 1.7.2 Channel and Grab Sampling .............................................................................................. 7 1.7.3 Soil Sampling ..................................................................................................................... 8 1.7.4 Trenching............................................................................................................................ 8 1.7.5 Drilling ................................................................................................................................ 8 1.8 DRILLING PROGRAMS ................................................................................................................. 9 1.9 MINERAL PROCESSING AND METALLURGICAL TESTING ........................................................... 9 1.10 UPDATED 2025 MINERAL RESOURCE ESTIMATE ...................................................................... 10 1.10.1 General Information......................................................................................................... 10 1.10.2 CIM Standards .................................................................................................................. 11 1.10.3 Methodology .................................................................................................................... 11 1.10.4 Mineral Resource Database and Wireframes. ................................................................. 12 1.10.5 Compositing and Variography ......................................................................................... 14 1.10.6 Grade Capping and Rock Density .................................................................................... 14 1.10.7 Mineral Resource Estimate .............................................................................................. 15 1.10.8 Mineral Resource Estimate .............................................................................................. 16 1.10.9 Grade Sensitivity Analysis ................................................................................................ 19 1.10.10 Block Model Validation .................................................................................................... 22 1.11 CONCLUSIONS .......................................................................................................................... 23 1.11.1 Risks and Opportunities................................................................................................... 23 1.12 RECOMMENDATIONS ................................................................................................................ 25 1.12.1 Exploration and Property Budget.................................................................................... 25 1.12.2 Further Recommendations.............................................................................................. 26 2.0 INTRODUCTION ...................................................................................................... 28 2.1 TERMS OF REFERENCE ............................................................................................................. 28 2.2 DISCUSSIONS, MEETINGS, SITE VISITS AND QUALIFIED PERSONS ........................................ 29 2.3 SOURCES OF INFORMATION ..................................................................................................... 29 2.4 UNITS AND CURRENCY ............................................................................................................. 30 2.5 SOURCES OF INFORMATION ..................................................................................................... 33 2.6 PREVIOUS TECHNICAL REPORTS ............................................................................................. 34 Oko Gold Property i April 24, 2025 Page 3.0 RELIANCE ON OTHER EXPERTS ................................................................................. 35 4.0 PROPERTY DESCRIPTION AND LOCATION .................................................................. 36 4.1 LOCATION.................................................................................................................................. 36 4.2 MINERAL TITLE IN GUYANA ....................................................................................................... 36 4.3 LAND TENURE ........................................................................................................................... 40 4.4 LAND ACQUISITION ................................................................................................................... 45 4.5 MICON QP COMMENTS ............................................................................................................. 46 5.0 ACCESSIBILITY, CLIMATE, LOCAL RESOURCES, INFRASTRUCTURE AND PHYSIOGRAPHY . 47 5.1 ACCESSIBILITY .......................................................................................................................... 47 5.2 CLIMATE, TOPOGRAPHY AND HYDROLOGY .............................................................................. 48 5.3 LOCAL RESOURCES AND INFRASTRUCTURE ........................................................................... 49 5.4 MICON QP COMMENTS ............................................................................................................. 50 6.0 HISTORY................................................................................................................ 51 6.1 GOLDEN STAR AND CAMBIOR JOINT VENTURE (1991-1993) ................................................... 51 6.2 EXPLORATION BREX INC. (1995-1997)...................................................................................... 52 6.3 MICHAEL VIERRA SMALL SCALE MINING (2011-PRESENT)....................................................... 52 6.3.1 Guyana Precious Metals Inc. (2011-2013)........................................................................ 53 6.4 MICON QP COMMENTS ............................................................................................................. 53 6.5 HISTORICAL MINING ................................................................................................................. 54 6.6 MINERAL RESOURCE ESTIMATES ............................................................................................. 54 7.0 GEOLOGICAL SETTING AND MINERALIZATION ............................................................ 55 7.1 REGIONAL GEOLOGY ................................................................................................................. 55 7.1.1 Guiana Shield ................................................................................................................... 55 7.1.2 Geology of North Guyana ................................................................................................. 58 7.1.3 Tertiary and Quaternary Sediments ................................................................................ 59 7.2 PROPERTY GEOLOGY ................................................................................................................ 62 7.2.1 Regolith Domains ............................................................................................................. 62 7.2.2 Lithology ........................................................................................................................... 63 7.2.3 Structure........................................................................................................................... 65 7.3 DEPOSIT GEOLOGY ................................................................................................................... 67 7.3.1 Lithology and Host Rocks ................................................................................................ 67 7.3.2 Structural Geology and Mineralization ........................................................................... 75 7.3.3 Differences Between Previous and Current Geological Structural Interpretations and Mineralization .................................................................................................................. 85 8.0 DEPOSIT TYPES ...................................................................................................... 87 8.1 MICON QP COMMENTS ............................................................................................................. 87 9.0 EXPLORATION ........................................................................................................ 89 9.1 2016 TO 2025 EXPLORATION PROGRAMS ................................................................................ 89 9.2 FIELD MAPPING, CHANNEL AND GRAB SAMPLING ................................................................... 89 9.3 SOIL SAMPLING ......................................................................................................................... 92 9.4 TRENCHING ............................................................................................................................... 92 Oko Gold Property ii April 24, 2025 Page 9.5 DRILLING ................................................................................................................................... 96 9.6 MICON QP COMMENTS ............................................................................................................. 96 10.0 D [Excerpt trimmed for readability. 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