Tintina Mines Limited · TSXV:TTS
Tintina Mines — Investor Presentation (September 2026)
23 slides from Tintina Mines's investor presentation, September 2026
Slide 1: Tintina Mines Limited Corporate Presentation
TINTINA MINES LIMITED Corporate Presentation September 2026 TSXV:TTS OTC:TNNTF TSXV:TTS 1
Slide 2: Disclaimers
Disclaimers General Disclaimer This presentation has been prepared by management of Tintina Mines Limited ("Tintina" or the "Company") and does not represent a recommendation to buy or sell securities of the Company. Investors should always consult their investment advisors prior to making any inves
Slide 3: Tintina Mines Limited – focused on delivery of the Dos Amigos Project
Tintina Mines Limited – focused on delivery of the Dos Amigos Project1 Strategically backed by copper development platform ~80% held by management, anchors & strategics – including the Gignac Family, Sumitomo Corporation, Juan Enrique Rassmuss and Franco-Nevada 100%-owned, PEA stage Dos Amigos coppe
Slide 4: Our strategy – building a mid-tier, multi-asset, Latin American focused copper producer
Our strategy – building a mid-tier, multi-asset, Latin American focused copper producer Deliver the Dos Amigos Project Advance through feasibility, permitting and into production Leverage G Mining Services’ in-house project delivery expertise Establish Tintina Mines as a copper development platform
Slide 5: Dos Amigos – a defined low-cost producer with a credible development route
Dos Amigos – a defined low-cost producer Huasco with a credible development route Vallenar Las Losas Airport Port Low-altitude brownfield setting ~800m elevation on the site of brownfield oxide operations <60km Direct access to established infrastructure Adjacent to the Pan American Highway, rail an
Slide 6: Low altitude brownfield location offers direct access to ports, power and workforce
Dos Amigos – low altitude brownfield location offers direct access to ports, power and workforce Brownfield setting in an established mining district Water Existing operating history, site access and permitted exploration activities Dedicated 63km raw-seawater pipeline planned But alternative option
Slide 7: Dos Amigos – resource scale to support development today, plus upside potential
Dos Amigos – resource scale to support development today, plus upside potential 101mt M&I and 256mt Inferred1 M&I Inferred 101mt 256mt 0.35% Cu 0.34% Cu 0.28g/t Au 0.24g/t Au 0.56% CuEq2 0.52% CuEq2 Broad, vertically continuous Cu-Au mineralised envelope extending over ~400m in width With the porphy
Slide 8: Dos Amigos – the 2026 PEA establishes a credible development baseline
Dos Amigos – the 2026 PEA establishes a credible development baseline Independent study delivered by SRK Consulting 310mt 25-year SRK-prepared PEA outlines a conventional open-pit mining and flotation life-of-mine ore processed production profile processing development concept based on established t
Slide 9: Dos Amigos – a 25-year production profile, including a meaningful gold contribution
Dos Amigos – a 25-year production profile, including a meaningful gold contribution First 5-year Average ~43ktpa Cu and ~74koz p.a. Au ~61ktpa CuEq1 68kt 70kt 69kt 63kt 63kt 59kt 59kt 58kt 59kt 54kt 56kt 54kt 54kt 54kt 51kt 51kt 50kt 48kt 48kt 48kt 41kt 38kt 34kt 34kt 16kt Yr1 Yr2 Yr3 Yr4 Yr5 Yr6 Yr
Slide 10: Dos Amigos – applying a simple, conventional flowsheet and established technology
Dos Amigos – applying a simple, conventional flowsheet and established technology No reliance on continental freshwater Untreated seawater supplied directly to the process through a dedicated 63km pipeline 35ktpd sulphide concentrator Seawater use without sacrificing copper recovery Test work showed
Slide 11: Dos Amigos – versus peers, real capex estimates to deliver a low-cost producer
Dos Amigos – versus peers, real capex estimates to deliver a low-cost producer Prudent, executable capital estimate Copper Development Projects Capital Intensity1 Grounded in reality, reflects a realistic assessment, rather $3.7bn than relying on aggressive benchmark assumptions $3.2bn $2.4bn $2.3bn
Slide 12: Dos Amigos – fully funded work program, targeting Final Investment Decision in 2030
Dos Amigos – fully funded work program, targeting Final Investment Decision in 2030 2026 2027 2028 2029 2030 Financing C$91m financing completed ~C$55m of net proceeds allocated to advancing Dos Amigos to FID ~C$36m used to consolidate remaining 26.25% ownership in Dos Amigos Drilling ~40,000m of pl
Slide 13: Dos Amigos – fully financed to Final Investment Decision, and backed by strategic investors
Dos Amigos – fully financed to Final Investment Decision, and backed by strategic investors C$91m ~C$37m ~C$45m Gross proceeds closed Potential proceeds on 3-year Potential proceeds on 5-year warrants (Jul’29) warrants (Jul’31) Closed in August 2026 ~C$36m spent consolidating the remaining 26.25% ~C
Slide 14: Dos Amigos – fully unencumbered, with every construction financing lever intact
Dos Amigos – fully unencumbered, with every construction financing lever intact Dos Amigos is a clean asset – no production pledged, sold or committed to date, with full financing toolkit available for construction 945kt life-of-mine copper production Royalties – commercially unencumbered, and curre
Slide 15: Anchor investors with both the capital and the capability to deliver
Anchor investors with both the capital and the capability to deliver Sumitomo Corporation ~US$50bn global commodities trader in business for over 100 years and with 123 offices across 62 countries More than US$10bn invested in the mining sector, with over 30 global mining investments The Gignac Fami
Slide 16: Applying a proven model to create a base metals growth platform
Applying a proven model to create a base metals growth platform Acquisition Window Development & the “orphan period” Value Realisation Projects become undervalued as they Disciplined execution de-risks projects, transition from discovery to development, with further re-rating potential when expertis
Slide 17: Potential near-mine upside along the 'Dos Amigos' trend
Potential near-mine upside along the ‘Dos Amigos’ trend… ~1km Bullseye Magnetic Anomaly Strong circular magnetic anomaly Tricolor 230m at 0.56% Cu, 0.33g/t Au (or 0.81% CuEq) to end of hole 205m at 0.29% Cu, 0.36g/t Au (0.56% CuEq) to end of hole Dos Amigos PEA pit and porphyry intrusion Tricolor –
Slide 18: Broader upside and regional consolidation opportunities
ROUTE 5 Broader upside and regional Huasco Proposed Huasco Filo del Sol consolidation opportunities Relincho Vicuña Freirina Pipeline at 500l/s Vallenar El Morro A fertile Cu-Au district Productora Established porphyry and IOCG belt hosting multiple Alto del Carmen operating mines, development proje
Slide 19: Leadership that balances project delivery capability and local continuity
Leadership that balances project delivery capability and local continuity Management Claude Chris Richard James Andy Dufresne Stackhouse Leclerc Purchase Whitfield CEO CFO General Manager VP Exploration VP Corp Dev & IR Mining executive with leadership Mining executive with ~$1bn raised Mining engin
Slide 20: Tintina Mines Limited Capital Structure
Tintina Mines Limited Capital Structure Capital Structure – as of 20 September 2026 Share Price Performance Basic Shares Outstanding ~284m Dilutive Instruments ~94m Fully Diluted Shares Outstanding ~377m Share Price C$2.58/sh Spot Price C$2.58/sh Market Cap C$732m Cash – internal estimate ~C$51m Deb
Slide 21: Investment highlights: Built to deliver, and positioned to grow
Investment highlights Built to deliver, and positioned to grow Right Brownfield with established infrastructure – existing operating footprint with access to power, highway and ports Location Tier-one copper jurisdiction – mature mining ecosystem, established legal framework and clear development pa
Slide 22: A credible route to a meaningful new copper-gold mine
A credible route to a meaningful new copper-gold mine, backed by the best build team in the business 2026 Study 25-year 945kt ~1.5moz PEA by SRK Consulting production profile life-of-mine copper production life-of-mine gold production Upcoming Catalysts ~40,000m drill program Tricolor exploration ta
Slide 23: Dos Amigos Mineral Resource
Dos Amigos Mineral Resource Effective December 31, 2024 Classification Tonnage Copper Grade Gold Grade Contained Copper Contained Gold kt % g/t kt koz Measured 15,390 0.36 0.32 55 158 Indicated 85,426 0.34 0.28 294 761 Measured & Indicated 100,816 0.35 0.28 349 921 Inferred 256,328 0.34 0.24 869 1,9
Tintina Mines — Investor Presentation (September 2026) on 6ix