Briefing
Bunker Hill is projected to generate approximately $25 million of annual average free cash flow over an initial 5-year mine life based on the current Probable reserves. Key points: Bunker Hill is projected to generate approximately $25 million of annual average free cash flow over an initial 5-year mine life based on the current Probable reserves; Bunker Hill is projected to generate approximately $25 million of annual average free cash flow over an initial 5-year mine life based on the current Probable reserves; The primary objective of the test program is to complete metallurgical test work to improve met results over the Pre-feasibility Study (PFS) performed by Resource Development Inc. (RDi) for the Bunker Hill Project; Classification Pb % Zn % (x1,000) ($/Ton) Oz/Ton (x1,000) (x1,000) (x1,000) Measured (M) 2,374 $ 119.60 1.01 2,404 2.46 116,574 5.37 254,811 Indicated (I) 4,662 $ 119.81 1.00 4,657 2.37 221,295 5.48 510,964 Total M & I 7; Technical Report Effective August 29, 2022 Page 2 Table 1-2 Estimated Bunker Hill Production for Life of Mine Life of Mine (LOM) Totals/Average Metal Prices Zinc ($/lb) 1.5 Lead ($/lb) 0.95 Silver ($/oz) 22 Mine plan Tot; It will produce over 316 million pounds of zinc, 146 million pounds of lead, and 3 million ounces of silver at an all-in sustaining cost (“AISC”) of $0.77 per payable pound of zinc (net of by- products). 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
Bunker Hill is projected to generate approximately $25 million of annual average free cash flow over an initial 5-year mine life based...
Extractive summary evidence · source
Bunker Hill is projected to generate approximately $25 million of annual average free cash flow over an initial 5-year mine life based...
Extractive summary evidence 2 · source
The primary objective of the test program is to complete metallurgical test work to improve met results over the Pre-feasibility Study (PFS)...
Extractive summary evidence 3 · source
Classification Pb % Zn % (x1,000) ($/Ton) Oz/Ton (x1,000) (x1,000) (x1,000) Measured (M) 2,374 $ 119.60 1.01 2,404 2.46 116,574 5.37 254,811...
Extractive summary evidence 4 · source
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# 43-101 Technical Report and Prefeasibility Study (PFS) September 30, 2022 Source: https://www.bunkerhillmining.com/_resources/reports/20221025-PFS-BNKR.pdf?v=091207 Fetched: 2026-09-12T07:01:09.133+00:00 Source artifact: 11632a4f-e052-4192-9fc1-1ce2c15bc099 Normalizer input: text ## Content # 43-101 Technical Report and Prefeasibility Study (PFS) September 30, 2022 TECHNICAL REPORT AND PRE-FEASIBILITY STUDY FOR UNDERGROUND MINING, MILLING AND CONCENTRATION OF LEAD, SILVER AND ZINC AT THE BUNKER HILL MINE COEUR D’ALENE MINING DISTRICT SHOSHONE COUNTY, IDAHO, USA REPORT DATE SEPTEMBER 30, 2022 EFFECTIVE DATE: AUGUST 29, 2022 PREPARED FOR: BUNKER HILL MINING CORP. BY QUALIFIED PERSONS: Scott Wilson, C.P.G. Robert Todd, P.E. Resource Development Associates, Inc. Minetech, USA, LLC 10262 Willowbridge Way 129 Denali Ln Highlands Ranch, CO 80126 Butte, MT 59701 303-717-3672 775-397-4862 Peter Kondos, Ph.D. YaKum Consulting Inc. 910A Logan Ave., Toronto, Ontario M4K 3E4 Canada +1 (416) 616-9669 DATE AND SIGNATURE PAGE Bunker Hill Mining Corp.: Technical Report and Pre-Feasibility Study for Underground Mining, Milling and Concentration of Lead, Silver and Zinc at the Bunker Hill Mine, Coeur d’Alene Mining District, Shoshone County, Idaho, USA. Technical Report Effective Date: August 29, 2022 September 30, 2022 (signed/sealed) Scott E. Wilson Scott E. Wilson, SME-RM, CPG Geologist (signed/sealed) Robert “Chip” Todd Robert Todd, P.E. Mining Engineer (signed/sealed) Peter Kondos Peter Kondos, Ph.D. Consulting Metallurgist AUTHOR CERTIFICATE Scott E. Wilson I, Scott E. Wilson, CPG, SME-RM, of Highlands Ranch, Colorado, as the author of the technical report entitled “Technical Report and Pre-Feasibility Study for Underground Mining, Milling and Concentration of Lead, Silver and Zinc at the Bunker Hill Mine, Coeur d’Alene Mining District, Shoshone County, Idaho, USA” (the “Technical Report”) with an effective date of August 29, 2022 prepared for Bunker Hill Mining Corp. (the “Issuer”), do hereby certify: 1. I am currently employed as President by Resource Development Associates, Inc., Highlands Ranch, Colorado USA 80126. 2. I graduated with a Bachelor of Arts degree in Geology from the California State University, Sacramento in 1989. 3. I am a Certified Professional Geologist and member of the American Institute of Professional Geologists (CPG #10965) and a Registered Member (#4025107) of the Society for Mining, Metallurgy and Exploration, Inc. 4. I have been employed as both a geologist and a mining engineer continuously for a total of 33 years. My experience included resource estimation, mine planning, geological modeling, geostatistical evaluations, project development, and authorship of numerous technical reports and preliminary economic assessments of various projects throughout North America, South America and Europe. I have employed and mentored mining engineers and geologists continuously since 2003. 5. 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 association (as defined in NI 43-101) and past relevant work experience, I fulfill the requirements to be a “Qualified Person” for the purposes of NI 43-101. 6. I have made several personal inspections of the Bunker Hill Project with the most recent visit September 22, 2021. 7. I am responsible for Sections 1 through 12, 14, 19 through 20 and 23 through 27 of the Technical Report. 8. I am independent of the Issuer as independence is described in Section 1.5 of NI 43-101. 9. Prior to being retained by the Issuer, I have not had prior involvement with the property that is the subject of the Technical Report. 10. I have read NI 43-101 and Form 43-101F1, and this Technical Report was prepared in compliance with NI 43-101. 11. As of the effective date of this Technical Report, to the best of my knowledge, information and belief, the portions of the Technical Report for which I am responsible contain all scientific and technical information that is required to be disclosed to make the portions of the Technical Report for which I am responsible not misleading. Dated: September 30, 2022 (signed/sealed) Scott Wilson Scott E. Wilson, CPG, SME-RM AUTHOR CERTIFICATE Robert H. Todd I, Robert H. Todd, P.E., of Butte, Montana, as the author of the technical report entitled “Technical Report and Pre-Feasibility Study for Underground Mining, Milling and Concentration of Lead, Silver and Zinc at the Bunker Hill Mine, Coeur d’Alene Mining District, Shoshone County, Idaho, USA” (the “Technical Report”) with an effective date of August 29, 2022 prepared for Bunker Hill Mining Corp. (the “Issuer”), do hereby certify: 1. I am currently a principal and co-owner of Minetech, LLC, located in Butte Montana. 2. I graduated with a Bachelor of Science degree in Mining Engineering from the University of Idaho, School of Mines, Idaho. 3. I am a Registered Professional Engineer in the States of Idaho (5327), Nevada (7779) and Montana (10095). 4. I have worked in mining operations, consulting engineering and engineering construction contracting for over 41 years. Prior to forming Minetech my consulting career included serving as General Manager of Engineering for Cementation USA in Sandy Utah, Vice President and Area Manager for Knight-Piesold in Elko, Nevada, and managing numerous independent engineering and construction projects. Mine operations and technical experience include: Technical Services Manager and then General Manager of the Jerritt Canyon Operations in Elko, Nevada, Supervising Engineer for Newmont Mining Corporation in Elko, Nevada, Project Engineer and Project Administrator for Noranda Minerals in Libby, Missoula and Cooke City Montana and Production Supervisor, Chief Engineer and Mine Manager for Echo Bay Minerals at Hawthorne Nevada. I worked for Sunshine Mining in Kellogg Idaho as I was attending the University of Idaho and then after graduation as a mine and project engineer until they closed in 1986. 5. 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 association (as defined in NI 43-101) and past relevant work experience, I fulfill the requirements to be a “Qualified Person” for the purposes of NI 43-101. 6. I have made several personal inspections of the Bunker Hill Project with the most recent visit September 2022. 7. I am responsible for Sections 15, 16, 18, 21 and 22 of the Technical Report. 8. I am independent of the Issuer as independence is described in Section 1.5 of NI 43-101. 9. Prior to being retained by the Issuer, I have not had prior involvement with the property that is the subject of the Technical Report. 10. I have read NI 43-101 and Form 43-101F1, and this Technical Report was prepared in compliance with NI 43-101. 11. As of the effective date of this Technical Report, to the best of my knowledge, information and belief, the portions of the Technical Report for which I am responsible contain all scientific and technical information that is required to be disclosed to make the portions of the Technical Report for which I am responsible not misleading. Dated: September 30, 2022 (signed/sealed) Robert H. Todd Robert H. Todd, P.E. AUTHOR CERTIFICATE Peter Kondos, Ph.D. I, Peter Kondos, Ph.D.., of Toronto, Ontario Canada, as the author of the sections 13 and 17 in the technical report entitled “Technical Report and Pre-Feasibility Study for Underground Mining, Milling and Concentration of Lead, Silver and Zinc at the Bunker Hill Mine, Coeur d’Alene Mining District, Shoshone County, Idaho, USA” (the “Technical Report”) with an effective date of August 29, 2021 prepared for Bunker Hill Mining Corp. (the “Issuer”), do hereby certify: 1. I am currently employed as CEO of YaKum Consulting Inc. with an office at 910A Logan Ave., Toronto, Ontario M4K 3E4 Canada. 2. I am a graduate of McGill University in Montreal, Canada (Master of Engineering in 1983 and Ph. D. in Hydrometallurgical Engineering in 1989). 3. I am a Fellow Member (AusIMM #334726) of the Australian Institute of Mining and Metallurgy and Fellow (#94171) of the Canadian Institute of Mining and Metallurgy. 4. I have 35 years of experience in the areas of metallurgy and mining. I have managed projects in research, process development for new properties and expansions, led multidisciplinary teams and strategic teams, plant troubleshooting, due diligence for acquisitions and overall business management. I have authored over 30 technical publications, 10 patents and several books, and I have been the recipient of three prestigious awards. 5. 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 association (as defined in NI 43-101) and past relevant work experience, I fulfill the requirements to be a “Qualified Person” for the purposes of NI 43-101. 6. I have not visited the Bunker Hill Mine, however a site visit was not required for my role in this report. 7. I am responsible for Sections 13 and 17 of the Technical Report. 8. I am independent of the Issuer as independence is described in Section 1.5 of NI 43-101. 9. Prior to being retained by the Issuer, I have not had prior involvement with the property that is the subject of the Technical Report. 10. I have read NI 43-101 and Form 43-101F1, and this Technical Report was prepared in compliance with NI 43-101. 11. As of the effective date of this Technical Report, to the best of my knowledge, information and belief, the portions of the Technical Report for which I am responsible contain all scientific and technical information that is required to be disclosed to make the portions of the Technical Report for which I am responsible not misleading. Dated: September 30, 2022 (signed) Peter Kondos, Ph.D. Peter Kondos, Ph.D. TABLE OF CONTENTS DATE AND SIGNATURE PAGE ............................................................................................................................................ 2 AUTHOR CERTIFICATE ....................................................................................................................................................... 3 AUTHOR CERTIFICATE ....................................................................................................................................................... 4 AUTHOR CERTIFICATE ....................................................................................................................................................... 5 1 SUMMARY ................................................................................................................................................................ 1 2 INTRODUCTION ........................................................................................................................................................ 9 3 RELIANCE ON OTHER EXPERTS ................................................................................................................................ 12 4 PROPERTY DESCRIPTION AND LOCATION ............................................................................................................... 13 5 ACCESSIBILITY, CLIMATE, LOCAL RESOURCES, INFRASTRUCTURE AND PHYSIOGRAPHY ......................................... 34 6 HISTORY ................................................................................................................................................................. 35 7 GEOLOGICAL SETTING AND MINERALIZATION ........................................................................................................ 42 8 DEPOSIT TYPES ....................................................................................................................................................... 60 [Excerpt trimmed for readability. 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