Slide 1: Corporate presentation March 2025
Corporate presentation MARCH 2025 TSX-V:OOR
Slide 2: Forward-looking statements
This presentation contains certain “forward-looking statements”, including, but not limited to, statements regarding the Company’s strategic plans, timetables, the evolution of mineral reserves and resources, mine operating costs, capital expenditures, work programs, development plans, exploration p
Slide 3: Investment highlights
• Experience Highly experienced and successful management and exploration team combining more than 100 years in the mining sector • Québec Extensive portfolio of highly prospective exploration properties located in Quebec. TWO properties qualify to Quebec’s Plan North taxes refund program • Location
Slide 4: Gold endowment of the district
>17 Moz Au 10 Moz Au Noyell >7 Moz Au Perron >75 Moz Au Courville >100 Moz Au
Slide 5: Regional map near Detour Lake
Detour Lake Gold Mine (Operating) I Martiniere Au +) [ Selbaie Ontario Gold Deposit Base Metal Deposit Douay Gold Project Joutel Gold Project Regional Shear Zones Power Line Road Poirier (Past Producer) Sas Fenelon Au (CO wausrioce Grasset Ni (CO wausrioce Douay Resource R Joutel Sleeping Giant (Pas
Slide 6: Noyell highlights and 2025 drill program
• Acquisition of 100% ownership of Noyell flagship Gold Project. • 7200 Meters ongoing 2025 drill program following completion of a 5,104 m winter 2021 drilling program on Noyell with significant success following up on 2020 spectacular drilling results. • Definition and extension of Zone 1 on Noyel
Slide 7: Vezza Mine regional geology
z ; mo . } W oe eet ; ‘Serem: Zone Est NOYELL and $4 gRA0/26.1 mine 11.0 9RAu/ 40m fo : \ ) ) vezza's fz §L soll \ eVvaidor’ | Ua aboteéat Zone Vezza A - Ouest 4.5 gh Au/ 11.0 mincl. 6 . 5) <1 1 VEZZA NORTH SS ere = VEZZA EXTENSION Pree Former Vezza Gold Zen Mine Zi NE / = L = — COLD) ‘Showings and
Slide 8: Gold anomalies over magnetic survey
c = = - r . S 4 Tonveee o <= = N cs > Ee eas S =F ORs 3) “ SSS @|_ : : =A 0iaipsS TES, = —= —— ' — : — = = ) — io) - — < nie » — © * y IRPORATION AURIFERE OPUS ONE ae Gold Anomalies PROPRIETE NOYELL 32 F12 OPUS over Mag Survey LEVE DE BIO GEOCHIMIE ‘ BONE Projection uim nad 83218 ‘Axes des anomalies
Slide 9: Bio-geochemical survey area
Bio-geochemical survey area
Slide 10: Noyell drill intercepts
NO-88-40: 5.2 G/T Au over 0.4 m NO-20-02: 3.54 g/t Au over 11.2 m Including: 7.96 g/t Au over 3.7 m 1.32 g/t Au/1.2 m
Slide 11: Zone 1: details of intercepts with Metal Factor >10
Zone 1: details of intercepts with Metal Factor >10 DDH From To lenght m g/t Au Met. Factor DDH From To lenght m g/t Au Met. Factor DDH From To lenght m g/t Au Met. Factor 88-39 140,4 144,8 4,40 5,01 22 2007-13 286,3 291,5 5,20 2,30 12 NO-21-04 421,0 424,5 3,50 4,84 16,9 140,4 141,3 0,90 15,95 286,3
Slide 12: Grade x meter 2019
2019 NO2007-11: 10.9 2019 Grade X meter
Slide 13: Grade x meter 2020
2020 NO2007-11: 10.9 Grade X meter
Slide 14: Grade x meter 2021
2021 NO2007-11: 10.9 Grade X meter
Slide 15: Grade x meter 2022
0m 2025 100 m 200 m 300 m 400 m 2022 2022 ? 500 m
Slide 16: Noyell vs Vezza Mine
NO2007-11: 10.9 Noyell vs Vezza Mine 650 m Approx. same scale
Slide 17: Noyell vs Casa Bérardi Est mine (Hecla)
NO2007-11: 10.9 Noyell vs Casa Bérardi Est mine (Hecla) Approx. same scale
Slide 18: Noyell vs Lapa mine (Agnico Eagle)
Noyell vs Lapa mine (Agnico Eagle, 872,000 oz Au) Approx. same scale
Slide 19: N20-01 – Zone 1
N20-01 – ZONE 1 374.6 @ 375.8 m : 6.76 g/t Au over 1.2m 374.6 @ 381.1 m: 2.05 g/t Au over 6.5m
Slide 20: N20-01 – Zone 1 section
N20-01— ZONE 1 GOLD CORP
Slide 21: N20-02 – Zone 1
N20-02 – ZONE 1 294.9 to 306.1 m : 3.54 g/t Au over 11.2 m Incl: 299 to 302.7m: 7.96 g/t Au over 3.7 m
Slide 22: N20-02 – Zone 1 (suite)
N20-02 — ZONE 1 (suite) GOLD CORP
Slide 23: Gold endowment of the district
>17 Moz Au 10 Moz Au Noyell >7 Moz Au Perron >75 Moz Au Courville >100 Moz Au
Slide 24: Courville historical drill holes
HOLE FROM TO LENGTH (M) G/T AU METAL FACTOR 90-CC-36 5,63 117,63 112,00 0,53 59 90-15 95,37 168,82 73,45 1,25 92 90-31 125,00 220,00 95,00 0,53 50 90-16 52,02 142,66 90,64 0,28 25 90-20 105,85 198,00 92,15 0,81 74 88-3 7,00 152,40 145,40 0,38 55 88-4 5,00 112,00 107,00 1,11 119 87-107 3,51 121,95 11
Slide 25: Courville historical drilling
Courville Historical drilling 21000 Forage Courville Type d'acces Chemin d'hiver Chemin forestier Route principale — Reseau routier (1) Proprietés courville CJ Titre minier Etendue d'eau ‘Cours d'eau Permanent Cours d'eau intermittent HNOMINEX} GL. CORP
Slide 26: Sections 3.1 and 3.2 of NI 43-101
SECTIONS 3.1 AND 3.2 OF NI 43-101 A qualified person, Pierre O’Dowd P.Geo, has verified the data disclosed, including sampling, analytical, and test data underlying the information or opinions contained in the written disclosure as required by section 3.1 and 3.2 of NI43-101.
Slide 27: Share structure
• Symbol: TSX-V: OOR • CUSIP Number: 684007 • Outstanding Shares: 207,375,466 • Warrants: 48,300,000 • Options: 16,350,000 • Fully diluted: 272,025,466 • Main institutional shareholders: Quebec Funds (SIDEX, FTQ, Fonds de Développement de la Baie James) > 15% • Insiders & friends ± 50% 34
Slide 28: Contacts
Contacts OOR Louis Morin Mike Kinley Chief Executive Officer & Director President & Chief Financial Officer Tel.: (514) 591-3988 Tel.: (902) 826-1579 info@OpusOneGold.com Fax.: (902) 826-2550 mkinley@winassoc.biz Address OOR 800 Square Victoria Suite 3500 Montreal, Quebec, Canada, H4Z 1E3 Stock Symb