# Collective Mining Guayabales NI 43 101 021225 Source Brief: https://evesgoldminers.com/research/source-briefs/collective-mining-ltd-2025-12-02-collective-mining-guayabales-ni-43-101-021225-221babfc Original source: https://collectivemining.com/wp-content/uploads/2025/12/Collective_Mining_Guayabales_NI_43-101_021225.pdf Original published: 2025-12-02 EGM generated: 2026-09-04 Company: Collective Mining Ltd (CNL) ## Use Note This is the Eve's Gold Miners normalized Markdown copy of an official or regulatory public source. It is provided for readability, search discovery, and research resilience. The original source remains authoritative for legal, regulatory, and investment decisions. ## Extracted Document Text # Collective Mining Guayabales NI 43 101 021225 Source: https://collectivemining.com/wp-content/uploads/2025/12/Collective_Mining_Guayabales_NI_43-101_021225.pdf Published: 2025-12-02T00:00:00+00:00 Fetched: 2026-05-12T15:10:31.61+00:00 Source artifact: 221babfc-fea7-4445-93a6-80d075f7e4fc Normalizer input: text ## Content # Collective Mining Guayabales NI 43 101 021225 NI 43-101 Technical report Guayabales Gold-Silver-Copper-Tungsten Project Department of Caldas, Colombia Apollo target Dr. Stewart D. Redwood Consulting Economic Geologist 2 December 2025 NI 43-101 TECHNICAL REPORT For the Guayabales Gold-Silver-Copper-Tungsten Project, Department of Caldas, Colombia For Collective Mining Ltd. 82 Richmond Street East, 4th Floor, Toronto, ON, M5C1P1 By STEWART D. REDWOOD BSc (Hons), PhD, FIMMM, FGS Consulting Geologist P.O. Box 0832-0757, World Trade Center, Panama City, Panama stewart@sredwood.com Effective date: 15 September 2025 Signature date: 2 December 2025 Collective Mining Ltd. S. D. Redwood Guayabales Project, Colombia. NI 43-101 Technical Report 2 December 2025 DATE AND SIGNATURE PAGE The effective date of this technical report, titled “NI 43-101 Technical Report for the Guayabales Gold-Silver-Copper-Tungsten Project, Department of Caldas, Colombia” is 15 September 2025. Signed: 2 December 2025 “Stewart D. Redwood” Stewart D. Redwood BSc(Hons), PhD, FIMMM, FGS 2 Collective Mining Ltd. S. D. Redwood Guayabales Project, Colombia. NI 43-101 Technical Report 2 December 2025 AUTHOR’S CERTIFICATE I, Stewart D. Redwood, FIMMM, hereby certify that: 1. I am a Consulting Geologist with address at P.O. Box 0832-0757, World Trade Center, Panama City, Republic of Panama. 2. I am the author of the technical report titled “NI 43-101 Technical Report for the Guayabales Gold-Silver-Copper-Tungsten Project, Department of Caldas, Colombia” (the Technical Report) with effective date 15 September 2025 and signature date 2 December 2025. 3. I graduated from the University of Glasgow with a First Class Honours Bachelor of Science degree in Geology in 1982, and from the University of Aberdeen with a Doctorate in Geology in 1986. 4. I am a Fellow in good standing of The Institute of Materials, Minerals and Mining, Number 47017. 5. I have more than 40 years’ field experience as a geologist working in mineral exploration and mine geology including gold, silver, copper and polymetallic deposits of epithermal, porphyry and other types worldwide, including more than 20 years’ experience in Colombia. 6. I have read the definition of “Qualified Person” set out in National Instrument 43-101 (NI 43-101) and certify that by reason of my education, affiliation with a professional organization (as defined in NI 43-101) and past relevant work experience, I fulfil the requirements to be a “Qualified Person” for the purposes of NI 43-101. I made a current personal inspection of the Guayabales Project on 9 to 14 March 2025. 7. I am responsible for all sections of the Technical Report. 8. I am independent of Collective Mining Ltd applying all of the tests in Section 1.5 of NI 43-101. 9. My previous involvement with the project was to write technical reports for Collective Mining Ltd with signature dates 22 September 2021 and 21 April 2023 and to review the Apollo deposit in a report dated 28 March 2025. 10. I have read NI 43-101 and the Technical Report has been prepared in compliance with that instrument. 11. As of the date of this certificate, to the best of my knowledge, information and belief, the Technical Report contains all scientific and technical information that is required to be disclosed to make the Technical Report not misleading. 12. I consent to the filing of the Technical Report with any stock exchange and other regulatory authority and any publication by them, including electronic publication in the company files on their websites accessible by the public, of the Technical Report. Dated 2 December 2025 Signature: “Stewart D. Redwood” 3 Collective Mining Ltd. S. D. Redwood Guayabales Project, Colombia. NI 43-101 Technical Report 2 December 2025 TABLE OF CONTENTS DATE AND SIGNATURE PAGE..................................................................................................2 AUTHOR’S CERTIFICATE...........................................................................................................3 TABLE OF CONTENTS................................................................................................................ 4 List of Tables............................................................................................................................... 9 List of Figures............................................................................................................................11 Abbreviations.............................................................................................................................15 1 SUMMARY...........................................................................................................................18 1.1 Introduction....................................................................................................................18 1.2 Property Description and Location................................................................................ 18 1.3 Accessibility, Climate, Local Resources, Infrastructure and Physiography..................18 1.4 History........................................................................................................................... 19 1.5 Geological Setting and Mineralization.......................................................................... 19 1.6 Deposit Type..................................................................................................................20 1.7 Exploration.................................................................................................................... 20 1.8 Drilling...........................................................................................................................21 1.9 Mineral Processing and Metallurgical Testing.............................................................. 23 1.10 Mineral Resource Estimates.......................................................................................... 24 1.11 Interpretation and Conclusions...................................................................................... 24 1.12 Recommendations..........................................................................................................25 2 INTRODUCTION................................................................................................................. 27 2.1 Purpose of Report.......................................................................................................... 27 2.2 Terms of Reference........................................................................................................27 2.3 The Issuer.......................................................................................................................27 2.4 Sources of Information.................................................................................................. 28 2.5 Current Personal Inspection...........................................................................................29 3 RELIANCE ON OTHER EXPERTS.................................................................................... 30 4 PROPERTY DESCRIPTION AND LOCATION.................................................................31 4.1 Property Location.......................................................................................................... 31 4.2 Legal Framework...........................................................................................................31 4.3 Mining Property Rights................................................................................................. 34 4.4 Mining Property Acquisition Agreements.....................................................................37 4.5 Royalties........................................................................................................................ 38 4.6 Legal Access and Surface Rights.................................................................................. 39 4.7 Water Rights.................................................................................................................. 39 4.8 Environmental Liabilities.............................................................................................. 40 4.9 National Parks and Reserves......................................................................................... 40 4.10 Indigenous Reserves and Communities.........................................................................40 4.11 Other.............................................................................................................................. 40 4 Collective Mining Ltd. S. D. Redwood Guayabales Project, Colombia. NI 43-101 Technical Report 2 December 2025 5 ACCESSIBILITY, CLIMATE, LOCAL RESOURCES, INFRASTRUCTURE AND PHYSIOGRAPHY........................................................................................................................ 41 5.1 Accessibility.................................................................................................................. 41 5.2 Climate...........................................................................................................................44 5.3 Hydrology...................................................................................................................... 49 5.4 Local Resources and Infrastructure............................................................................... 50 5.5 Physiography................................................................................................................. 51 6 HISTORY.............................................................................................................................. 54 6.1 Mining History...............................................................................................................54 6.2 Prior Owners of the Property.........................................................................................54 6.3 Historical mineral resource estimates............................................................................ 55 6.4 Historical production..................................................................................................... 56 7 GEOLOGICAL SETTING AND MINERALIZATION.......................................................57 7.1 Regional Geology.......................................................................................................... 57 7.2 Local Geology............................................................................................................... 60 7.3 Property Geology...........................................................................................................60 7.3.1 Lithology................................................................................................................60 7.3.2 Alteration............................................................................................................... 68 7.3.2.1 Secondary biotite............................................................................................... 69 7.3.2.2 Chlorite-sericite................................................................................................. 69 7.3.2.3 Chlorite-epidote................................................................................................. 70 7.3.2.4 Sericite............................................................................................................... 71 7.3.2.5 Chlorite.............................................................................................................. 72 7.3.3 Mineralization [Excerpt trimmed for readability. 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