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TSX TLG OTCQX CHXMF FSE CM5R Fact Sheet Q2 2024 Fact Sheet Q1 2025 A Generational Scale Asset in a Tier 1 Jurisdiction THE TROILUS GOLD COPPER PROJECT VALUE PROPOSITION Favourable Mining Jurisdiction Quebec ranked 5 globally by the Fraser Institute in 2023 Large Mineral Resource 11 21 Moz AuEq Ind 1 80 Moz AuEq Inf Among the largest undeveloped Au Cu deposits in N A 2024 Feasibility Study One of Canada s largest future gold copper operations ESG Leadership ECOLOGO certified UNGC member Aiming for carbon neutral operation Quality Brownfield Site Past producing mine 1996 2010 US 500M of inherited infrastructure 22 year Mine Life 303 000 oz A u E q Avg Annual Production LOM 135 4 Mlbs C u E q Avg Annual Production LOM 2 2B Cumulative After Tax FCF 536 400 oz A u E q Peak Annual Production Yr 7 74 900 WMT Avg LOM annual production See AuEq disclosure at www troilusgold com AuEq production assumed a 92 recovery rate for all metals CuEq recovered metal assumes a 92 recovery rate for all metals SHARE STRUCTURE As of October 18th 2024 Shares Outstanding Warrants Options RSU s 52 week high low Market Capitalization January 6th 2025 Cash Marketable Securities October 31 2025 363M 33 3M Nil 13 9M 0 25 0 85 C 110M C 29 2M ANALYST COVERAGE Richard Gray Cormark Allison Carson Desjardins Pierre Vaillancourt Haywood Brandon Gaspar Sprott Capital Paul O Brien Velocity Trade 8 Management Insiders SHARE OWNERSHIP 28 Retail Other 363M SHARES OUTSTANDING 64 Institutional 50 Global Funds OF WHICH 12 ARE QUEBEC BASED To the best of Troilus knowledge

FEASIBILITY STUDY OVERVIEW PRODUCTION Mine Life Daily Mill Throughput Annual Mill Throughput Avg Annual Metal Production Payable Years 1 5 Years 6 22 Life of Mine Probable Reserves Probable Average Grades Strip Ratio Avg LOM Gold Copper Silver Recoveries ECONOMICS Base Case Au 1 975 oz Cu 4 05 lb Ag 23 oz After tax NPV5 After tax IRR Payback 884 million 14 5 7 years COST METRICS Initial Capital Expenditure Sustaining Capital Expenditure All in sustaining cost life of mine 22 years 50 000 tpd 18 3Mt year Gold Copper Silver koz Mlbs koz 256 2 16 1 475 2 241 2 17 7 438 3 244 6 17 3 446 4 380 Mt containing 7 26 Moz AuEq 6 02 Moz Au 484 Mlbs Cu 12 2 Moz Ag 0 59 g t AuEq 0 49 g t Au 0 058 Cu 1 0 g t Ag 3 1 1 92 7 91 8 91 9 1 074 million 276 6 million 1 109 oz 6TH IN ANNUAL GOLD PRODUCTION Koz Detour Lake Canadian Malartic Meadowbank Meliadine LaRonde Troilus Brucejack Porcupine Rainy River Eleonore Macassa Young Davidson Lamaque Eagle Gold Mount Milligan Hemlo Goldex Timmins Island Casa Berardi 432 364 307 303 286 260 260 232 229 185 177 167 154 141 141 133 131 90 677 604 2ND LOWEST AISC IN CANADA US oz Timmins Casa Berardi Hemlo Porcupine Eleonore Rainy River Brucejack Young Davidson Lamaque Mount Milligan Troilus Island 1 890 1 875 1 650 1 510 1 500 1 475 1 370 1 200 1 130 1 125 1 109 900 Source Company disclosures Based on 24 management guidance Some companies do not provide AISC on an asset level Troilus metrics based on May 2024 FS results on an AuEq basis MINE SITE LAYOUT INFRASTRUCTURE US 500M OF INHERITED VALUE Qualified Person This fact sheet reflects the technical information presented in the May 14 2024 press release Nicolas Guest P Geo Exploration Manager at Troilus Gold and Kyle Frank P Geo VP Exploration at Troilus Gold both of whom are Qualified Persons as defined by NI 43 101 have reviewed and approved the written disclosure in this presentation Board of Directors Senior Management Contact Us Chantal Lavoie Diane Lai Brigitte Berneche Thomas Olesinski Hon Pierre Pettigrew Fran ois Biron Justin Reid Justin Reid CEO Director Susanna Milne CFO Ian Pritchard SVP Technical Services Kyle Frank VP Exploration Daniel Bergeron VP Special Projects Brianna Davies Sr VP Legal Corp Secretary Andy Fortin VP Operations General Manager of the Troilus Mine Catherine Stretch VP Corporate Affairs Sustainability Caroline Arsenault VP Corp Communications Jacqueline Leroux VP Environment and Permitting Nicolas Guest Exploration Manager 715 Sq Victoria Suite 705 Mtl QC H2Y 2H7 1 647 276 0050 or info troilusgold com troilusgold com Follow Us