Tinka Resources Limited · TSXV:TK
Tinka Resources — Investor Presentation (October 2025)
30 slides from Tinka Resources's investor presentation, October 2025
Slide 1: Advancing High-Quality Zinc-Silver and Gold-Copper Exploration Projects in Peru
Advancing High-Quality Zinc-Silver and Gold-Copper Exploration Projects in Peru AYAWILCA Zn-Ag-Sn & SILVIA Au-Cu Projects Corporate Presentation October 2025
Slide 2: Disclaimer
Disclaimer This presentation does not constitute or form a part of, and should not be construed as an offer, solicitation or invitation to subscribe for, underwrite or otherwise acquire, any securities of Tinka Resources Limited (“Tinka” or the “Company”), nor shall it or any part of it form the bas
Slide 3: Investment Highlights
Investment Highlights AYAWILCA Zinc-Silver-Tin Project: High-grade zinc-rich polymetallic resource at advanced exploration PEA-stage – company to target high-grade zinc extensions and shorten the development pipeline to production. SILVIA Gold-Copper project: New discovery – initial 1,500 metre dril
Slide 4: TK: Management and Directors
TK: Management and Directors Executive Chairman: Brandon Macdonald BSc Geology, MBA Brandon is a geologist with a diverse background in exploration geology, mining, capital markets, M&A and finance (Macquarie Bank in London, founding CEO of Fireweed Metals). President and CEO: Graham Carman PhD, FAU
Slide 5: TK: Capital Structure
TK: Capital Structure Shares Issued & 133,657,553 Outstanding Warrants $0.40 (exp 10/28) 25,959,091 12-month stock chart $0.75 (exp 06/26) 1,739,296 Options $0.40 (exp 09/30) 6,600,000 $1.25 (exp 06/26) 1,530,000 Market Cap C$53 M (@ $0.40) Cash C$15 M Debt nil TinkaResources.com 5 | TSXV: TK
Slide 6: Central Peru: A World-Class Mining Belt
Central Peru: A World-Class Mining Belt AYAWILCA : Antamina Cu Pierina Au ➢ 8,000 hectares of mining concessions held by Tinka Resources SAC- 100% SILVIA gold-copper owned by TK. AYAWILCA zinc-silver-tin Raura Zn-Cu SILVIA : SILVIA SLIDE El Porvenir/Atacocha Zn-Ag-Pb ➢ 10,900 hectares of mining Cerr
Slide 7: AYAWILCA: Highlights
AYAWILCA: Highlights ➢ Ayawilca is one of the largest undeveloped zinc-rich polymetallic mineral resource projects in the Americas. ➢ Zinc : 3.64 billion pounds of zinc (indicated) and 2.91 billion pounds zinc (inferred) in mineral resources. ➢ Silver : 29.5 million ounces (reporting to Pb conc). ➢
Slide 8: SILVIA: Highlights
SILVIA : Highlights ➢ New discovery by Tinka: property acquired from BHP for 1% NSR royalty and one-off cash payment. ➢ Located 100 km south of Antamina mine (world-class Cu-Zn mine containing 7.5 Mt copper and 5 Mt zinc in M&I Mineral Resources), same limestone host rocks. ➢ Three main targets iden
Slide 9: AYAWILCA Mineral Resources (2024)
AYAWILCA Mineral Resources (2024) Zinc Zone ~80 Mt in combined resources ➢ Indicated: 28.3 Mt @ 5.8% zinc, 16.4 g/t silver, Based on ~95,000 metres of drilling 0.2% lead and 91 g/t indium ➢ Inferred: 31.2 Mt @ 4.2% zinc, 14.5 g/t silver, 0.2 g/t lead and 45 g/t indium Tin Zone ➢ Indicated: 1.4 Mt @
Slide 10: AYAWILCA: High-grade Zinc in large vertical bodies
AYAWILCA: High-grade Zinc in large vertical bodies ➢ Exceptional drill results from the 2022/23 drill program led to a reinterpretation of the geological model and updated PEA. ➢ Potential for early development focusing on high-grade replacement zones West Ayawilca – massive sulphide bodies Selected
Slide 11: AYAWILCA: Spectacular Zn grades
AYAWILCA: Spectacular Zn grades South Ayawilca: 39 m @ 20% Zn including West Ayawilca: 16 metres @ 22% Zn (A22-220) 10 m @ 42% Zn (A22-202) TinkaResources.com 11 | TSXV: TK
Slide 12: AYAWILCA: Map of Priority Exploration Targets
AYAWILCA: Map of Priority Exploration Targets Uplifted block >5% Zinc East Zn >0.2% Copper West Zn ext >0.1% Tin Zn 1 km Priority Sn targets Central Sn (Cu) target South Zn TinkaResources.com 12 | TSXV: TK
Slide 13: AYAWILCA: Longitudinal Section (B-B')
AYAWILCA: Longitudinal Section (B-B’) South Ayawilca 060 Fault B Magnetic “low” B’ Central Ayawilca East Ayawilca Zinc resource >5% Zinc Tin resource >0.2% Copper 300 m >0.1% Tin East Zn target A13-11: 16m @ 1.0% Sn & 0.7% Cu (OPEN) Central Incl. 2m @ 4.8% Sn Sn (Cu) A13-12A: 31m @ 0.54% Sn and 0.2%
Slide 14: SILVIA NW: Geology
SILVIA NW: Geology ➢ Intrusive rocks (quartz monzonite, diorite, breccia) cut the Cretaceous Jumasha limestone (same host as Antamina) as stocks and dikes. ➢ Multiple zones of Cu-Au mineralization associated with garnet – pyroxene skarn and stockworks within intrusions and limestone. ➢ Multiple targ
Slide 15: SILVIA NW: High-grade Gold-Copper target Area A
SILVIA NW: High-grade Gold-Copper target “Area A” SURFACE TRENCH RESULTS 1m @ 2.9 g/t Au & 1.2% Cu 8m @ 0.3 g/t Au & 0.5% Cu 150 m Geology cover Quartz Monzonite Target area Limestone 16m @ 0.3 g/t Au & 0.5% Cu 34m @ 0.2 g/t Au & 0.4% Cu Alteration Marble 1m @ 18.6 g/t Au & 12.3 % Cu Skarn Sampling/
Slide 16: SILVIA NW: Interpretive cross section of targets
SILVIA NW: Interpretive cross section of targets First drill holes planned TinkaResources.com 16 | TSXV: TK
Slide 17: Environmental, Social and Governance
Environmental, Social and Governance Tinka has established strong relationships with local communities at both Ayawilca and Silvia projects ➢ Tinka is committed to fostering long-term sustainable relationships with our stakeholders. ➢ The Company provides environmental and social investments along w
Slide 18: Key Priorities Moving Forward
Key Priorities Moving Forward Advance Ayawilca Zinc-Silver-Tin Project ➢ Continue exploration to expand and improve the resource base. ➢ Mining studies and optimization of PEA mine plan. ➢ Community engagement enabling an eventual mine development. Silvia Copper-Gold Discovery – Drill Program ➢ Firs
Slide 19: Appendices
Appendices TinkaResources.com 19 | TSXV: TK
Slide 20: Magnetics: Highlight Critical Trans-Andean Faults
Magnetics: Highlight Critical Trans-Andean Faults ➢ Trans-Andean faults are SILVIA Up to 12% Cu in rocks associated Up to 18.0 g/t Au in rocks N with ALL big mineral deposits in the Andes AYAWILCA ➢ AYAWILCA: Zn + Sn + Ag Mineral Resources 8,000 ha of granted concessions Raura Mine ➢ SILVIA: 10,900
Slide 21: Regional Geology and Mining Concessions
Regional Geology and Mining Concessions ➢ AYAWILCA: Hosted by Pucara SILVIA Up to 12% Cu in rocks 8 de Diciembre limestone Up to 18.0 g/t Au in rocks N (Jurassic age) – same host as Cerro de Pasco region mines AYAWILCA Zn + Sn + Ag Mineral Resources ➢ SILVIA: Hosted by Jumasha limestone Raura Mine (
Slide 22: AYAWILCA: Cross Section
AYAWILCA: Cross Section (see exploration target map for location) A A’ West Ayawilca Central Ayawilca 060 Fault Zinc resource >5% Zinc Tin resource >0.2% Copper 300 m >0.1% Tin TIN is A22-190: 32m @ 0.36% Sn & 0.33% Cu OPEN A13-11: 16m @ 1.0% Sn & 0.7% Cu (to EOH) Incl. 2m @ 4.8% Sn & 2.0% Cu Sn-Cu
Slide 23: Growing Demand for Zinc
Growing Demand for Zinc Accelerated investment and adoption of renewable energy is leading to growing zinc demand Zinc Use in Renewables (tonnes) 136,000 14,000 66,000 62,000 300 24,000 150,000 162,000 85,000 *Projected / Source: CRU, IRENA 2020 2025 2030* Peru is the 2nd largest global supplier of
Slide 24: Silver / Tin / Indium – Key Critical Metals
Silver / Tin / Indium – Key Critical Metals ➢ Silver - a precious ➢ Tin - the highest value of ➢ Indium - a key metal used in all the base metals. component in flat panel electronics, solar ➢ Widely used in displays and touch panels, and medical electronics and circuit screens, LCDs, technologies. b
Slide 25: AYAWILCA 2024 PEA
AYAWILCA 2024 PEA Annual mine schedule (Zn-Ag-Pb circuit) and conceptual development ➢ 2.0 Mt per annum zinc-silver-lead circuit and 0.3 Mtpa tin underground mine as two separate circuits: ▪ Robust economics: NPV 8% of US$434 million after-tax and IRR of 25.9% after-tax. ▪ Long life-of-mine : 21-yea
Slide 26: AYAWILCA PEA: Flow-Sheet for Zinc and Tin Circuits
AYAWILCA PEA: Flow-Sheet for Zinc and Tin Circuits 180,000 dmt Zn conc / yr (av.) Zinc-Silver-Lead 92% recovery, 50% Zn grade 5,500 dmt Ag-Pb conc / yr (av.) Tin 3,000 dmt Sn conc / yr (av.) TinkaResources.com 26 | TSXV: TK
Slide 27: AYAWILCA 2024 PEA - Highlights
AYAWILCA 2024 PEA - Highlights BASE CASE METAL PRICES & EXCHANGE RATE ASSUMPTIONS INPUT VALUE OPERATING SUMMARY Zinc price US$1.30/lb Processing plant throughput Zn/Ag/Pb 2.0 Mt/year Lead price US$1.00/lb Processing plant throughput Sn 0.3 Mt/year Silver price US$22/oz Avg. annual Zn concentrate pro
Slide 28: AYAWILCA Zinc Zone Mineral Resource (SLR, 2024)
AYAWILCA Zinc Zone Mineral Resource (SLR, 2024) Grade Contained Metal Classification/ Tonnage NSR Zone (Mt) ($/t) (% Zn) (g/t Ag) (%Pb) (g/t In) (Mlb Zn) (Moz Ag) (Mlb Pb) (t In) Indicated South 13.8 128 6.64 19.3 0.2 120 2,020 8.6 52 1,655 West 14.5 98 5.05 13.6 0.2 64 1,618 6.3 56 927 Total Indica
Slide 29: AYAWILCA Tin Zone Mineral Resource (SLR, 2024)
AYAWILCA Tin Zone Mineral Resource (SLR, 2024) Tonnage NSR Grade Contained Metal Classification (Mt) ($/t) (% Sn) (Mlb Sn) Indicated 1.4 99 0.72 22 Inferred 12.7 104 0.76 213 Notes: 1. CIM (2014) definitions were followed for Mineral Resources. 2. The Mineral Resources have been reported within unde
Slide 30: Contacts
CONTACTS Graham Carman, President and CEO info@tinkaresources.com Tim McNulty, Corporate Communications tmcnulty@tinkaresources.com Phone: 1.604.290.8100 Tinka Resources Suite 1305 – 1090 West Georgia St Vancouver, BC V6E 3V7 Canada Phone: 1.604.685.9316 TinkaResources.com 30 | TSXV: TK
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