Goldquest Mining Corp. · TSXV:GQC
Goldquest Mining — Investor Presentation (November 2025)
29 slides from Goldquest Mining's investor presentation, November 2025
Slide 1: An Emerging Gold-Copper Developer with Exploration Upside in the Dominican Republic
An Emerging Gold-Copper Developer with Exploration Upside in the Dominican Republic Nov 2025
Slide 2: Forward-Looking Statements
FORWARD-LOOKING STATEMENTS This presentation, and the information contained herein, has been provided to you by GoldQuest Mining Corp. (“GoldQuest” or the “Company”) solely for information purposes. While the information contained in this presentation is believed to be accurate, GoldQuest expressly
Slide 3: GoldQuest: Developing Romero and Unlocking the Next Discovery
GOLDQUEST Developing Romero and Unlocking the Next Discovery ▪ Romero Au/Cu discovery (2012) with multi-million-ounce potential. ▪ Latest PFS Nov. 2016: 28% IRR(1), NPV(1) (5%) US$202 million ▪ The 50-km-long Tireo Belt hosts Romero and remains highly prospective – 5,000m drill program starting i
Slide 4: Romero Project Location
ROMERO PROJECT LOCATION The Dominican Republic The Dominican Republic is the Romero is strategically seventh largest economy in Latin positioned to benefit from America with real GDP growth DR’s robust economic averaging ~5% annually over the growth, political stability, past 15 years, outpacing man
Slide 5: Board of Directors and Management Team
BOARD OF DIRECTORS Technical & Financial Expertise MANAGEMENT TEAM Frank Balint, Chair - P.Geo Veteran Team with DR Experience • Veteran mining executive >45 years incl. INMET. Luis Santana, CEO Florian Siegfried, Director - MBA • Former CEO Cardinal Namdini – Ghana • Former CEO Veladero – Argentina
Slide 6: GoldQuest Capital Structure
GOLDQUEST CAPITAL STRUCTURE Strong Support from In-Country Investors Shareholders Retail Dominican Republic Share Information TSXV:GQC Investors Dominican Republic 29.5% 23.8.2% Shareholders 36.2% Market Capitalization** ~C$563 M Shares Outstanding (Basic) 341,023,141 Guess Investment Shares Outstan
Slide 7: Romero: Gold-Copper Starter Mine
ROMERO Gold-Copper Starter Mine 2016 PFS mine plan considers 35% of current Indicated Mineral Resource(1) Current Mine Plan ▪ 2,800 tpd – 75% Longhole stopes ▪ Large Stopes (up to 20m x 20m x 50m) ▪ Options to expand mine as metal prices rise (1) Refer to “Romero Mineral Resource Estimate” in the sl
Slide 8: Romero PFS NPV 5% $203M
ROMERO PFS 2016 Prefeasibility Study Provides Conservative Base Case at Current Prices – Rerate Opportunity NPV 5% * IRR* AISC* PAYBACK The planned 2,800 tpd underground mine focuses on the high-grade gold and $203M 28% $595/OZ 2.5 YRS copper “core” of Romero AFTER TAX Produces saleable copper AuEq.
Slide 9: The Romero Project: Responsible Mine Design
THE ROMERO PROJECT PFS: Responsible Mine Design to Continue into BFS Minimal Surface Impact ▪ Small surface footprint over underground mine, thus minimal affect on landscape Return Wasterock Underground ▪ 65% of waste rock will be returned underground as backfill No use of Cyanide ▪ A gold/copper co
Slide 10: Focused on Responsible Development
FOCUSED ON RESPONSIBLE DEVELOPMENT Commitment to Social & Community Development ▪ Strengthening relationships with local communities through sustainable initiatives. ▪ Sponsoring the province’s eco-tourism development plan, fostering economic diversification. ▪ Leading a reforestation program for th
Slide 11: Process Flow for Mine Permitting in Dominican Republic
Process Flow for Mine Permitting in Dominican Republic Romero, November 2025 Former Process Flow New Process Flow Exploration Concession Exploration Concession Law 146-71 Law 146-71 Prefeasibility Study Report Prefeasibility Study Report Law 146-71 Law 146-71 Exploitation Concession Environmental Im
Slide 12: Romero Development: Permitting in the Dominican Republic
ROMERO DEVELOPMENT Permitting in the Dominican Republic Advancing the Romero Project – Sedgman and SRK Engaged for BFS ▪ Developing a streamlined, scalable mining plan – a 7 Mt Mineral Reserve with a simple, efficient “starter mine” approach (1). ▪ 2016 PFS outlined a ramp-accessed underground mine,
Slide 13: GoldQuest Romero Project PFS (2016)
GOLDQUEST ROMERO PROJECT PFS (2016) Romero Mineral Reserve Estimate Mine Reserves Tonnes Au Ag Cu Au Eq⁽¹⁾ (1) Au equivalent metal prices: Au $1,300/oz Cu $2.50/lb Ag $20.00/oz (Cutoff $70 NSR)⁽²⁾ (g/t) (oz) (g/t) (oz) (%) (M lb) (g/t) (oz) (2) Cutoff NSR metal prices: Cu Au $1,250/oz $2.50/lb Ag $1
Slide 14: Exploration
EXPLORATION Tireo Belt Concessions The Romero Project is only part of GoldQuest’s emerging Tireo Mining District Romero Project TSXV: GQC goldquestcorp.com | 14
Slide 15: Exploring the Tireo Belt
EXPLORING THE TIREO BELT +250 km long belt hosting high-grade Au-Cu mineralization Underexplored Belt with +5 Moz Au endowment: ▪ Total endowment of the belt is ~ 5 Moz Au + unknown or unreported endowment in Haiti (former Newmont projects) ▪ Our concessions holds significant potential to develop a
Slide 16: Project Portfolio
PROJECT PORTFOLIO Strategic Road to Discovery ▪ Reserves: Romero (7 Mt @ 3.72 ppm Au, 4.33 ppm Ag and 0.88% Cu, or 4.9 ppm AuEq – 1.117 MOz) ▪ Resources: Romero and Romero Sur (Total indicated 20.23 Mt @ 3.48 ppm AuEq – 2.265 Moz AuEq, Total Inferred 3 Mt @ 2.47 ppm AuEq – 0.24 Moz AuEq) ▪ Advanced
Slide 17: Ongoing Exploration Program
ONGOING EXPLORATION PROGRAM Unlocking our full value Romero Reserves ▪ 50 Km long property holding with potential to deliver growth to our investors. Romero South Resources ▪ Targets occur along the mineralized trend hosting the Romero Deposits and the Cachimbo Discovery. IP Chargeability (mV/V) ▪ T
Slide 18: Geological Model of the Tireo Belt
GEOLOGICAL MODEL OF THE TIREO BELT Gold-Rich VMS Clan 167.5 g/t Au at surface Au Zn-Au Au Au Cachimbo Zn-Au Discovery Cu-Au Romero Project Cu-Au Cu-Au Image modified from Dubé, B; Gosselin, P; Mercier- Langevin, P; Hannington, M; Galley, 2007. Mineral deposits of Canada: a synthesis of major deposit
Slide 19: District-Scale Geology
DISTRICT-SCALE GEOLOGY ▪ Our concessions covers all prospective ground (Tireo Fm.) ▪ Structural pattern related with mineralization likely to repeat along NW trend. Romero ▪ Marine volcanics and subsequent deformation with multiple mineralization events. Romero Sur TSXV: GQC Cachimbo goldquestcorp.c
Slide 20: Romero: Mineral Reserves Open at Depth
ROMERO Mineral Reserves – Open at Depth ▪ Drilling ongoing to unlock Romero full value. ▪ Metallurgical and Geotechnical drilling will be completed to support BFS efforts. ▪ Drilling at depth along plunge planned for late 2025 – Q1 2026. Open at Depth and to NW along plunge TSXV: GQC goldquestcorp.c
Slide 21: Romero BFS Drilling
ROMERO BFS DRILLING Ongoing Metallurgical + Geotech Drilling LTP-171 @ 273 m depth LTP-172 @ 174 m depth TSXV: GQC Strongly silicified andesitic tuff, Strongly silicified andesitic tuff, with quartz veins and with disseminated chalcopyrite goldquestcorp.com | 18 disseminated chalcopyrite (5%), (10-%
Slide 22: Romero Gap Target
ROMERO GAP TARGET New Drill Test Concept: ▪ GAP Target is between Romero and Romero South: ▪ High chargeability anomaly. ▪ ZTEM low resistivity at depth. ▪ 3D Magnetic Inversion anomalies NW trending (~Romero). ▪ Historical drilling ended up in high-grade mineralization. ▪ 5 gpt Au at depth in hole
Slide 23: 3D Mag Inversion
3D MAG INVERSION Enhancing the value of historical data Car Rom aco er ▪ 3D Magnetic Inversion model shows high l oR Tar correlation between Magnetic lows and ese get mineralization rves ▪ Structural pattern clearly showed by different images. ▪ Repetition of anomalies closely related with GA update
Slide 24: Cachimbo
CACHIMBO Open along trend and plunge – 3D View 2017 VMS Discovery - the sub-seafloor copper-gold rich feeder system, analogous to the core of Romero, has not yet been located at Cachimbo. ▪ Cachimbo VMS zone returned high grades of precious and base metals on three horizons ▪ Located 20.5 km south o
Slide 25: Cachimbo: Targeting Our Next Mineral Resource
CACHIMBO Targeting to Our Next Mineral Resource ▪ ~5,000m drill program planned to start in early November, focusing on Greenfield exploration: ▪ Los Ganchos, ▪ Cañada La Vaca, ▪ Los Mineros, ▪ Cachimbo SE, and ▪ Cachimbo NW ▪ A large, >7.5 km anomalous corridor encompasses Cañana La Vaca, Los Ganch
Slide 26: Our Vision for the Belt
OUR VISION FOR THE BELT 100% Owned 50 km Long Land Position ▪ Deliver value to our investors in Romero by expanding current Mineral Resource base and advancing exploration following the promising Cachimbo discovery (2017). ▪ Resuming drilling in multiple high-potential targets across the Tireo Belt.
Slide 27: GoldQuest: Summary and Catalysts
GOLDQUEST: SUMMARY AND CATALYSTS Advancing Strategic Asset and Restarting Exploration ▪ With strong local and government support, Romero is now advancing to feasibility ▪ District upside: 50-km district-scale trend anchored by existing Romero and Romero South resources. ▪ Financial position and back
Slide 28: Thank You
Contact Information Corporate Head Office Telephone: (809) 385-2260 Luis Santana, CEO (809) 224-0629 lsantana@goldquestcorp.com Deborah Honig, IR Deborah@adcap.ca General Email investorrelations@goldquestcorp.com Share Information For up to date share information, please visit our website at www.gol
Slide 29: Romero Mine: After-Tax NPV and IRR Sensitivity to Gold Price
ROMERO MINE After-Tax NPV & IRR Sensitivity to Gold Price 2016 PFS Highlights After Tax NPV5% After Tax IRR Low Capex, High IRR, Scalable Deposit $350 35% PFS SummaryResults PFS Summary Results $300 30% After Tax NPV5% (US$M) At At US$1300 Au/ /US$2.50.lb US$1300 Au US$2.50.lbCuCu $250 25% Start-Up
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