Slide 1: Oroco Resource Corp. Second Quarter 2026
Oroco Resource Corp. Second Quarter - 2026 Second Quarter, 2026 Oroco Resource Corp. | Santo Tomás Porphyry Copper Project | TSXV: OCO 1
Slide 2: Forward Looking Statements
Forward Looking Statements This presentation contains certain forward-looking statements that reflect the current views and/or expectations of Oroco Resource Corp. (“Oroco”) with respect to its business and future events including statements regarding Oroco’s business and exploration plans. Forward-
Slide 3: Preliminary Economic Analysis and Other Studies
Preliminary Economic Analysis and Other Studies This presentation contains certain statements and information from the NI 43-101 Technical Report and Preliminary Economic Assessment Update (the “PEA”) with an effective date of August 15, 2024, available on the Company’s website at www.orocoresourcec
Slide 4: Investment Highlights
Investment Highlights ➢ Santo Tomás large-scale, low-cost copper project with resource upside “most buildable large copper mining project in North America” – Richard Lock, OCO:V CEO ➢ Funded for PFS technical program C$23M Canaccord Genuity bought deal, closed January 14, 2026 ➢ Multi-Decade & Low C
Slide 5: Santo Tomás 2024 PEA Highlights
Santo Tomás 2024 PEA Highlights Low Capital Intensity Multi-decade Copper Project Post – Tax NPV8% Initial CAPEX Mine Life Construction Mine Type US$1.48B US$1.103B 22.6 Years 2 Years Open Pit Post – Tax IRR NPV:CAPEX Payable Production Post -Tax Payback Processing 22.2% 1.34:1 108ktpa CuEq 3.8 Year
Slide 6: Project Profile – Early low-strip & high grade
Project Profile – Early low-strip & high grade High grade mineral blocks at / near surface. Immediate higher-grade mined in early production. $1,000 $6,000 $5,307 $5,000 $800 Cumulative Cash Flow, US$M (2024 Dollars) $4,000 $600 $498 $3,000 Cash Flow, US$M (2024 Dollars) $441 $438 $409 $422 $387 $38
Slide 7: Project Profile – Early low-strip & high grade
Project Profile – Early low-strip & high grade Mill Process Feed After SRK, 2024 // PEA Second Quarter, 2026 Oroco Resource Corp. | Santo Tomás Porphyry Copper Project | TSXV: OCO 7
Slide 8: Phase 2 Work Focus
Phase 2 Work Focus Pillar Drill test - Additional resource and improve mine scheduling South Zone - Resource infill and classification North Pit conversion drilling South East 3D IP geophysical Pillar anomaly test Zone South Pit South West infill + higher grade target testing Second Quarter, 2026 Or
Slide 9: Resource Expansion Potential
Resource Expansion Potential ➢ Mineralization remains open on strike ➢ Geophysical anomalies also present outside of current resource and strike ~ 5.0 km NORTH ZONE OPEN PILLAR SOUTH ZONE BRASILES ➢ Phase 2 exploration drilling to upgrade resource OPEN classifications and test undrilled limits of th
Slide 10: Strong Federal + State Support for Santo Tomás
Strong Federal + State Support for Santo Tomás Undersecretary of Foreign Trade Luis Rosendo Gutiérrez Romano and Sinaloa Secretary of Economy Ricardo Velarde Cárdenas with Congressman1 Mario Zamora Gastelum and Oroco Management 1 Member of the Chamber of Deputies of Mexico Governor of Sinaloa with S
Slide 11: Plan Sinaloa – Plan México: Santo Tomás included
Plan Sinaloa – Plan México: Santo Tomás included Ricardo Velarde Cárdenas Secretary of Economy for the state of Sinaloa Second Quarter, 2026 Oroco Resource Corp. | Santo Tomás Porphyry Copper Project | TSXV: OCO 11
Slide 12: Exploration and Technical Work to Date
Exploration and Technical Work to Date Over CAD $70 Million Invested (since 2019) ➢ 14 km2 of deep, 3D, Induced Polarization ("DCIP") geophysical survey by Dias Geophysical ➢ 76 drill holes / 49,000m of drilling with 5,000m of strike length tested – 75 drill hole Historical Program – 151 total drill
Slide 13: Vainilla Option
Vainilla Option ➢ Strategic Expansion: Strengthens control of the Santo Tomás porphyry copper belt; immediate exploration upside ➢ Social Commitment: OCO commits to region following all-tier government and local support ➢ Geological Potential: Hosts skarns, breccia pipes (El Platano) & quartz-veins
Slide 14: Corporate Overview
Corporate Overview Capital Structure on May 13th, 2026 Share Price Chart (1 Year) Tickers TSXV:OCO; OTCPK:ORRC.F; DB:OR6 Share Price C$0.485 Shares Outstanding 325,943,143 Fully Diluted 391,193,594 Market Capitalization C$158.1M Institutional, Insiders, 21% 13% Share Ownership Research Coverage Most
Slide 15: Management & Directors
Management & Directors Craig Dalziel Charles Cryer Ian Graham Steven Vanry Executive CEO & President & CFO & Chairman Director Director Director • Brings 35+ years of resource company • Mining engineer & industry advisor: 30+ years • 25+ years in mineral project development • 25+ years in finance an
Slide 16: Oroco: a Fundamental Copper Entry Point
Oroco: a Fundamental Copper Entry Point The Setup The Timing ✓ Copper demand is rapidly expanding on the back of ✓ Santo Tomás is advancing to PFS definition of a known +1Bn electrification, defense, grid expansion, and industrial re-shoring tonne, large-scale, long-life copper mine project with lar
Slide 17: APPENDIX
APPENDIX Second Quarter, 2026 Oroco Resource Corp. | Santo Tomás Porphyry Copper Project | TSXV: OCO 25
Slide 18: August 2024 Mineral Resource Estimate
August 2024 Mineral Resource Estimate 1. Equivalent Copper (CuEq) percent is calculated with the formula CuEq% = ((Cu grade * Cu recovery [83.7% sulphide or 75.0% oxi de] * Cu price) + (Mo grade * Mo recovery [59%] * Mo price) + (Au grade * Au recovery [53%] * Au price) + (Ag grade * Ag recovery [53
Slide 19: Notes to August 2024 Mineral Resource Estimate
Notes to August 2024 Mineral Resource Estimate 1. Mineral resources are not mineral reserves and do not have demonstrated economic viability. 2. Table abbreviations include: % = percent, g/t = grams per metric tonne, M lb = million pounds, Koz = thousand troy ounces. 3. The mineral resources are rep
Slide 20: Critical Issue FAQs with Answers
Critical Issue FAQs with Answers Safety & Security: N. Sinaloa Open Pit Permitting Water Management / ✓ Safe operations at Santo Tomás ✓ Under Ms. Sheinbaum, > 28 Huites Reservoir since project mobilization; no mining permits approved ✓ PEA-compliant design: pit security incidents (expansions, taili
Slide 21: Oroco Resource Corp. | Santo Tomás Porphyry Copper Project | TSXV: OCO
Santo Tomás Second Quarter, 2026 Oroco Resource Corp. | Santo Tomás Porphyry Copper Project | TSXV: OCO 24