Slide 1: A Premier North American Gold Company
A PREMIER NORTH AMERICAN GOLD COMPANY OSISKODEV.COM TSX.V & NYSE: ODV INVESTOR PRESENTATION JUNE 2022 1
Slide 2: Our New Acquisition – Tintic Project
Our New Acquisition – TINTIC PROJECT EAST TINTIC MINING DISTRICT UTAH COUNTY, UTAH, USA
Slide 3: Cautionary Statements Regarding Forward Looking Information
Cautionary Statements Regarding Forward Looking Information FORWARD LOOKING INFORMATION This presentation (this "Presentation") contains forward-looking information and forward-looking statements (together, "forward-looking statements") within the meaning of applicable Canadian securities laws and t
Slide 4: Cautionary Statement Regarding Technical Information
Cautionary Statement Regarding Technical Information HISTORIC RESOURCES This Presentation references historic information in relation to the Burgin Mine, previously operated by Kennecott until 1978, and its potential for a significant silver-lead- zinc-gold deposit. A 2011 PEA included the historic
Slide 5: Location, Lands, Assets and Infrastructure
Location, Lands, Assets and Infrastructure
Slide 6: Tintic Project Location
Tintic Project Location • Located 40 mi (64km) SW of Provo and 60 mi (95km) S of Salt Lake City, UT in Utah County • Full road access via Interstate 15 and US 6 • Main office located at the Burgin mine site, 1.5 mi (2.5 km) NE of the Trixie mine • Permitted, gold producing operation located in Utah’
Slide 7: Tintic Project Permitting
Tintic Project Permitting Large Mine Operations Permit Exploration Permit Permit Status Currently operating under the 2017 Large Completed and approved Mine Operation (LMO) Permit Area and Bonds 231 permit acres, 73.9 acres (30 ha) bonded, with bond (non- material) Permit Updates and 2nd draft of ne
Slide 8: Tintic Project Assets
Tintic Project Assets Asset Summary OWNERSHIP 100% Osisko Development Corp. Trixie gold mine, underground production and exploration development Eureka Standard, Ajax, North Lily (Trixie satellite expansion) MINERAL ASSETS: Burgin ( historic PEA (2011) Cu, Zn, Pb historic resource) Cu-Mo-A
Slide 9: Site Resources and Infrastructure
Site Resources and Infrastructure • Underground workings, head frames and hoists • Offices and maintenance building • Historical development to 1000 ft. + (~300 m+) to water • Assay laboratory table, opportunity to develop at depth • Mill building housing cyanide Vat leaching system • Mining equipme
Slide 10: Fire Assay Laboratory
Fire Assay Laboratory • Current capacity of 91 samples per day for fire assay • Expansion of sample preparation room in progress to increase capacity and improve repeatability of analysis • Metallurgical test-work capabilities to support process monitoring and development New baghouse Prep Room Expa
Slide 11: Burgin Leach and Tailings Facilities
Burgin Leach and Tailings Facilities • Four-tank cyanide Vat leaching system • 60,000-ton capacity holding pad for tailings • Processing ~35 tons per day at 80%+ recovery • Operational as of May 17th, 2022 • Cash flow positive cyanide destruction with • Can be re-permitted to operate as a heap leach
Slide 12: Near-Term Processing Growth
Near-Term Processing Growth • Constructing a “Gold Room” to allow on-site stripping of carbon, and casting of doré for direct shipping to the refinery • Grinding mill allows potential for increasing recovery to +90% via comminution • Tailings facility permitted to allow dry stack of tailings • Explo
Slide 13: Desert Hawk Processing Facility
Desert Hawk Processing Facility • Currently operating a heap leach at the DHG gold site which has approx. 30,000 tons of Trixie material and Vat tails • Residual value is sufficient to justify construction of a temporary reprocessing circuit Dewatering Screen r veyo Con • Reprocessing capability exp
Slide 14: History
History
Slide 15: Early History of the Tintic Mining District
Early History of the Tintic Mining District Year Historic Highlights 1869 Polymetallic Ag, Au, Pb, Zn, Cu deposits discovered in Tintic Mining District (TMD) 1871 Eureka, Silver City, and Diamond City mining camps fully established 1899 First discovery within the East Tintic District (ETD); TMD reco
Slide 16: Early History of the Tintic Mining District
Early History of the Tintic Mining District Major Historic Mineralized Material Bodies (red) of the Tintic District, ca. 1978
Slide 17: Tintic Mining District: Historic Production
Tintic Mining District: Historic Production Production for the Tintic Mining District: 1869-2002 Material Treated Sub-District Period Gold (oz2) Silver (oz) Copper (t) Lead (t) Zinc (t) (t1) Main Tintic 1869-1993 13,813,942 2,166,841 207,687,987 109,866 644,750 69,258 East Tintic 1899-2002 5,982,827
Slide 18: History of the Trixie Deposit
History of the Trixie Deposit Date Historic Highlights 1956 Bear Creek Mining discovered strong Pb-Zn mineralization at the Trixie Mine 1968-1969 Au-Ag mineralization discovered at Trixie Mine along N-trending, steeply W- dipping 756 structure 1969-1992 Trixie material mined and shipped to Kennecott
Slide 19: Trixie Mine: Historic Production
Trixie Mine: Historic Production Year Tons Au (oz/t) Au (g/t) Ag (oz/t) Ag (g/t) Au Total oz Ag Total oz Pre-1983 508,482 0.20 6.86 6.95 238.29 102,713 3,533,950 1983 1,736 0.30 10.29 4.80 164.57 516 8,333 1984 11,397 0.15 5.14 6.00 205.71 1,710 68,382 1985 25,538 0.25 8.57 3.49 119.66 6,487 89,128
Slide 20: Trixie Mine: Polymetallic Mineralization
Trixie Mine: Polymetallic Mineralization Plan map of the major structural elements of the historic Trixie mine, and current exploration and mine development. 3 Historic Mineralization Zones within the Trixie Vein System: • 756 Ore Shoot: • Developed over 900 ft. (275m) strike and 1000 ft. (300 m) ve
Slide 21: Trixie Mine: Modern Target Generation
Trixie Mine: Modern Target Generation Date Historic Highlights August 2019 Tintic Consolidated Metals (TCM) acquired the Trixie Mine and commenced rehabilitation of the mine and shaft December 2019 TCM compiled historic Trixie data in a new 3D model which identified the footwall of the 610 stope as
Slide 22: Trixie Mine: Modern Target Generation
Trixie Mine: Modern Target Generation An oblique view of the new 3D model of the historic Trixie mine
Slide 23: Trixie Mine: Modern Target Generation
Trixie Mine: Modern Target Generation Overview of the Trixie Mine historic datasets, including Overview map of the southern end of 625 level surface RC drilling colored by gold, dated 2019
Slide 24: Trixie Mine: Modern Target Generation
Trixie Mine: Modern Target Generation An early mining face on the T2 structure WEST EAST Quartz T2 Stockwork T4 Footwall Breccia
Slide 25: District Geology
District Geology Geology and Mineralization of the Greater Tintic District
Slide 26: District Geology
District Geology • TCM mineral claims cover the bulk of the East Tintic mining district as well as USGS Geologic Map of the Eureka Quadrangle portions of the North Tintic, Main Tintic, and Southwest Tintic districts • District geology can be summarized in four phases of geologic evolution 1. Deposit
Slide 27: District Geology
District Geology • Mineralization is in part controlled by the chemistry and rheology of rocks within the Paleozoic platformal sequence • Within the East Tintic District, Lower Paleozoic units including the brittle Tintic Quartzite and impermeable shales of the Ophir Formation occupy higher structur
Slide 28: District Geology
District Geology Structures, Intrusions, & Metal Domains of the Tintic • The significance of structural control on base and precious metal mineralization is especially pronounced within the East Tintic District • Significant pre-mineralization structures of the East Tintic include • The north-trendi
Slide 29: District Mineralization
District Mineralization 1. CARBONATE REPLACEMENT Ag-Pb-Zn Replacement of reactive limestone more distal from causative porphyry centers on the margins of district. Accounts for most historical production within Tintic, including at the Burgin, Tintic Standard, and North Lily mines. 2. EPITHERMAL HIG
Slide 30: District Mineralization
District Mineralization Styles of mineralization and District-scale Porphyry-Epithermal System Deposit Model alteration present within the Tintic district qualify it as a classic porphyry-epithermal system with a high degree of rheologic and structural control on mineralization style and distributio
Slide 31: Trixie Mine Geology
Trixie Mine Geology Geology and Mineralization of the Trixie Mine
Slide 32: Trixie Mine Geology
Trixie Mine Geology North-facing Section Through the Trixie Mine 3D Geologic Model • The Trixie Mine is situated proximal to the crest of the regional-scale East Tintic Anticline • High-sulphidation epithermal mineralization structurally controlled and hosted within the brittle Tintic Quartzite • Mi
Slide 33: Trixie Mine Geology
Trixie Mine Geology Modeled Structures and Development at the Trixie Mine • Main Au-mineralized material bodies at the Trixie mine plunge steeply northward at the its north end, and southward at its south end • Consistent with mineralizing fluid utilization of the northeast-trending north-dipping Tr
Slide 34: West-Facing Geologic Long Section of the Trixie Mine
West-Facing Geologic Long Section of the Trixie Mine Trixie Mine Geology
Slide 35: Trixie Mine Mineralization
Trixie Mine Mineralization T2 Discrete Breccia Zone T4 Stockwork Zone • 1-2 ft (0.2-0.8m)-wide zone of high-grade Au • 10-80 ft. (3 to 25 m)-wide • Native Au and rare Au–Ag-rich +/- Cu- telluride minerals with quartz. • Typical grade of 0.3 to 1.0 oz/t (10 to 34 g/t) in T2 hanging- wall • E.g., Xoco
Slide 36: Underground Sampling and Mapping
Underground Sampling and Mapping
Slide 37: Trixie Mine: Underground Mapping
Trixie Mine: Underground Mapping Trixie Mine Cross Section • In 2021, TCM geologists began 1:20 underground mapping at the 625 level • Aim was to identify the extent of T2-T4 stockwork, alteration, and mineralization • Mapping was completed for all underground headings • Geologic models have been up
Slide 38: Trixie Mine: T2 Face Sampling
Trixie Mine: T2 Face Sampling T2: High Sulphidation Ledge Structure • A total of 1,150 face samples collected in 2021 • Average uncut, unweighted grade: 5.49 oz/t Au (188.23 g/t Au) , 6.64 oz/t Ag (227.66 g/t Ag) • Three exploration cross cuts were developed east from the first sill cut on the T2 st
Slide 39: Trixie Mine: T4 Face Sampling
Trixie Mine: T4 Face Sampling T4: Stockwork Mineralization • A total of 946 face samples collected in 2021 • Average uncut grade: 0.27 oz/t Au, and 1.59 oz/t Ag • Xcut 1: 15 ft. @ 2.03 oz/t Au (back) 4.57 m @ 69.6 g/t Au • Xcut 2: 16 ft. @ 0.76 oz/t Au (north rib) 4.88 m @ 26.06 g/t Au 12 ft. @ 0.51
Slide 40: T2 Structure – Mining Cuts – Sill 1
T2 Structure – Mining Cuts – Sill 1 T2 Structure – Mining Cuts – Sill 1 Mining North of Raise 1 Mining South of Raise 1 Distance of Distance of Mining Face Mining Face Composited Sample Width Face Grade Uncut Au North of Composited Sample Width Face Grade Uncut Au Raise 1 North of Raise 4 (ft) (ft)
Slide 41: T2 Structure – Mining Cuts – Sill 2
T2 Structure – Mining Cuts – Sill 2 Mining North of Raise 1 T2 Structure – Mining Cuts – Sill 2 Distance of Mining Mining North of Raise 4 Face North of Raise Composited Sample Width Face Grade Uncut Au 1 Distance of (ft) (ft) (m) (oz/t) (g/t) Mining Face Composited Sample Width Face Grade Uncut Au
Slide 42: Trixie Mine: T2 Grade Continuity
Trixie Mine: T2 Grade Continuity The main T2 structure shows Composite Face Sampling Grade Continuity by Tintic from Underground excellent continuity of grades 625 Level (not including splays and crosscuts) – October 2021 In-Situ T2 Mineralization
Slide 43: Underground Drilling
Underground Drilling
Slide 44: Underground Drilling Methodology
Underground Drilling Methodology • Currently two drill rigs in operation • HQ diamond drill (UG) and surface RC drill • Sampling completed onsite using ½ cut drill core • Samples processed by ALS Laboratory in Reno, NV • Gold Fire Assay and Multi-Element Four-Acid Digest • All assay batches include
Slide 45: 2021 Drilling Program Summary
2021 Drilling Program Summary T2-T4 Mineralized Zone Drilling • Drilling of the T2-T4 mineralization zone recommenced in April 2021 • 31 underground drillholes • 6,278.2ft. (1,913.6 m) of drilling • Drilling provided important delineation and mine planning data, though challenging drilling condition
Slide 46: 2021 Underground Drilling Highlights
2021 Underground Drilling Highlights • Drilling assays generally report Hole ID Structure From (ft) To (ft) Interval (ft) Interval (m) Au (oz/t) Au (g/t) Ag (oz/t) Ag (g/t) lower grades than face sampling TUG-625-013 T2-T4 63.2 123.0 48.0 14.6 1.4 49.0 2.7 91.9 assays due to the nuggety TUG-625-002
Slide 47: 2022 Drilling Recommendations
2022 Drilling Recommendations • Focus on definition drilling of T2-T4 Proposed T2-T4 Mineralized Zone Drilling • Explore open southern end of T2 • 2 to 3 underground drill rigs • Drilling on both 625 and 750 levels • Use existing underground infrastructure to minimize cost and maximize efficiency
Slide 48: 2022 Objectives
2022 Objectives • Complete an initial NI 43-101 compliant mineral resource estimate and operational report at Trixie as a foundation for a future PEA • Initiate advanced independent metallurgical and geotechnical studies to support a future PEA • Continue target generative work within and surroundin
Slide 49: 2022 Objectives and Budget
2022 Objectives and Budget Work Program Cost (USD) Underground exploration drilling $ 9,000,000 Complete Initial 43-101 Mineral Resource Estimate $ 500,000 Metallugical Testing and Geotechnical Studies $ 250,000 Database compilation, target generation and exploration permitting $ 750,000 Operational
Slide 50: Trixie Mine Plan and Schedule
Trixie Mine Plan and Schedule • Currently UG access is by shaft only to the 625L and 750L • Production averaging 35 tpd. Tonnage limited by shaft logistics • Targeting initial resource by end of 2022 • Current estimated tonnage in T2 area currently allows for 14 months of narrow vein mining • Estima
Slide 51: Trixie Decline Development
Trixie Decline Development • 4,550 ft. (1390 m) of decline development from surface to connect to the 625 level • Approx. 4,300 ft. (1310 m) to be driven from surface, and 350 ft. (106 m) to be driven from underground • Decline cross-section size is 16 x 16 ft. (5 x5 m) Click to add text • Muckbays
Slide 52: Trixie Decline Development
Trixie Decline Development • 820 ft. (250 m) of new surface road constructed, • Portal face has been excavated in preparation to and 700 ft. (215 m) of existing road has been receive a core drill to carry out geotechnical improved between the Trixie and the decline drilling portal entrance • Drainag
Slide 53: Exploration Potential
Exploration Potential
Slide 54: Tintic District Exploration Model
Tintic District Exploration Model Fast track to New Discoveries: • Well established extant underground infrastructure • Extensive library of legacy datasets covering the entire property
Slide 55: Trixie Mine: Exploration Potential
Trixie Mine: Exploration Potential • Six levels of historical development accessed by Trixie Underground Working a shaft to a depth of 412m (1,350 ft.) • Mineralization open at depth • Discovery of the T2 structure supports the untapped potential of the area • Exploration in 2022 will target potenti
Slide 56: Trixie Mine: Trixie West Target
Trixie Mine: Trixie West Target Trixie West Exploration Location of Trixie West Target Relative to Trixie Deposit Target • Significant exploration target • Located 2,000 ft (610 m) west of the Trixie Deposit • Structurally analogous to Trixie Deposit • Narrow veins hosted within volcanics • Initial
Slide 57: Trixie Area Surface Drill Proposal
Trixie Area Surface Drill Proposal • Second phase of exploration is continued drilling East of the Trixie mine along T2 structure over a 3000 ft. (1 km) strike length and 1000 ft. (300 m) of depth • Defining along strike potential of T2 structure • Identify additional targets within Trixie • Propose
Slide 58: Regional Exploration Potential
Regional Exploration Potential • East Trixie – South Apex Structural Corridor • Structural setting to that at Trixie and Eureka Standard mines • Depth of top of Tintic Quartzite at 600 ft. (183 m) • No modern exploration • Targeted but never tested by Kennecott in the 1970’s • Follow up mapping and
Slide 59: Regional Exploration Potential: Eureka Standard
Regional Exploration Potential: Eureka Standard • Epithermal Au-Ag along trend NNE of the Trixie mine Northeast Facing Geologic Cross Section Through the Eureka Standard Shaft Paul Billingsley, 1931 • Mineralization hosted in the brittle Tintic Quartzite with structural control along the East Tintic
Slide 60: Regional Exploration Potential: North Lily
Regional Exploration Potential: North Lily Trixie – North Lily • Highly prospective 3 mi (5km) long Corridor • Trixie – Eureka Standard – North Lily • Eureka Standard operated until 1947, highest grade precious metal mine in district with av. Grade of 0.77 oz/t Au • North Lily operated until 1940s,
Slide 61: North Lily Historic Operation
NORTH LILY HISTORIC OPERATION • Historic data compilation to drive future targeting • NE trending structures parallel to the Endline Dyke Fissure • Down faulted southern end of Endline Dyke Fissure, downthrown by the Eureka Lily Fault • Potential along strike towards the northeast • NE trending dyke
Slide 62: Ag-Pb-Zn Old Burgin Mine
Ag-Pb-Zn OLD BURGIN MINE • The Burgin mine hosts a significant Pb-Zn-Ag-Au replacement style deposit • Mined by Kennecott until 1978, with the “Burgin Extension” discovered from drilling undertaken in 1980 • Preliminary Economic Assessment 2011 (included historic resource) Historic Resource from Bur
Slide 63: Burgin Resource Extension
BURGIN RESOURCE EXTENSION Down plunge mineralization remains open at depth
Slide 64: Burgin Ball Park Opportunity
BURGIN BALL PARK OPPORTUNITY • Ball Park target (Zn-Pb) is located 5000 ft. (1.5 km) north of the Burgin mine • Kennecott surface drilling in 1970s intersected significant Zn-Pb mineralization at Ball Park • During the 1970’s Kennecott developed the 1050 level north of Burgin to explore this area, w
Slide 65: Trixie 3D Model
Trixie 3D Model • 6 historic levels of development, main shaft and ventilation shaft • 610 stope that was mined in 2001 – 2002 • Flux Mining - each of the larger Kennecott stopes, 756 ore shoot and Survey Vein • Historic ore panels are open at depth. Water table below the 1450L 65
Slide 66: Thank You
Thank You www.osiskodev.com