Goldquest Mining Corp. · TSXV:GQC
Goldquest Mining — Investor Presentation (March 2026)
32 slides from Goldquest Mining's investor presentation, March 2026
Slide 1: Building the Next Gold-Copper Mine in the Dominican Republic
Building the Next Gold-Copper Mine in the Dominican Republic March 2026
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 started in
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 27.2% 25% Shareholders 36% Market Capitalization** ~C$940 M Shares Outstanding (Basic) 382,089,282 Shares Outstanding (Fully Diluted) 41
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
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: 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 12: 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 13: Exploration: Tireo Belt Concessions
EXPLORATION Tireo Belt Concessions The Romero Project is only part of GoldQuest’s emerging Tireo Mining District Romero Project TSXV: GQC | OTCQX: GDQMF goldquestcorp.com | 13
Slide 14: 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 15: 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 16: 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 17: 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 | OTCQX: GDQMF Cachimbo
Slide 18: 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 started in February 2026. ▪ Once geotechnical and hydrogeological drilling is done, additional
Slide 19: Romero BFS Drilling
ROMERO BFS DRILLING Completed Metallurgical + Ongoing Geotech Drilling LTP-171 LTP-172 289m 252m LTP-173 LTP-174 159.2m 192.3m Selected core from 2025 metallurgical drilling b. Multiple overprinting hydrothermal a. Favorable multi-event pulses related to Cu–Au hydrothermal alteration mineralization
Slide 20: Romero Gap Target
ROMERO GAP TARGET New Drill Test Concept: Field Work Advancing: ▪ GAP Target is between Romero and Romero South: ▪ Drill pads being constructed for the GAP ▪ High chargeability anomaly. drilling. ▪ ZTEM low resistivity at depth. ▪ Completed 3 PD-IP lines at Caracol. ▪ 3D Magnetic Inversion anomalies
Slide 21: 3D Mag Inversion
3D MAG INVERSION Enhancing the value of historical data Car Rom aco ero ▪ 3D Magnetic Inversion model shows high l Ta correlation between Magnetic lows and R rge ese mineralization t rve s ▪ Structural pattern clearly showed by different images. ▪ Repetition of anomalies closely related with GA upda
Slide 22: Comprehensive Drilling to Deliver BFS
COMPREHENSIVE DRILLING TO DELIVER BFS • Completed 5 metallurgical holes (1,906 m) to support updated process design • Initial results expected March 2026 with final report expected by end of April/ early May 2026 • 8 Geotechnical holes (~2,700 m) planned – 6 completed • 10 hydrogeological holes (9 c
Slide 23: 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 24: Cachimbo: 2026 Drill Plan Ongoing
CACHIMBO 2026 Drill Plan Ongoing ⚬ Holes TIR-26-57, TIR-26-58, TIR-26-59 completed. Currently drilling TIR-26-60, targeting deep extensión of Cachimbo. ⚬ Results for TIR-26-59 are now pending. TIR-26-58 Assays: - 12.26m @ 7.62 g/t AuEq (2.52 g/t Au, 0.94% Cu, 50.72 g/t Ag, 0.26% Pb, 12% Zn) from 64.
Slide 25: Cachimbo 3D View
CACHIMBO 3D View (Looking W) • New DP-IP lines shows correlation between low-high chargeability contrasts and high-grade at hole TIR-26-58. • This proxy will be used for improved targeting in the following exploration holes. TSXV: GQC | OTCQX: GDQMF goldquestcorp.com | 24 Simplified cross section TS
Slide 26: Cachimbo Exploration Potential Expanded
CACHIMBO EXPLORATION POTENTIAL EXPANDED New discovery hole (TIR-26-58) – So What? • It’s not only about the grade – New structure, 200 m away from previous identified mineralization. • VMS usually are clusters – Proven potential to unlock additional resources. • Polymetallic intercept with added val
Slide 27: Cachimbo: Targeting to Our Next Mineral Resource
CACHIMBO Targeting to Our Next Mineral Resource ▪ ~5,000m drill program started in early January, 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 Ganchos and Cac
Slide 28: 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 29: 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 30: 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 31: Process Flow for Mine Permitting in Dominican Republic
Process Flow for Mine Permitting in Dominican Republic New Environmental Process Exploration Concession Prefeasibility Study Report Impact Environmental License Exploitation Concession Construction Assessment (EIA) Flow Romero, November 2025 Law 146-71 Law 146-71 Law 64-00 Law 64-00 Law 146-71 Forme
Slide 32: Romero Mine: PFS Highlights and Sensitivity
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.lbCu Cu $250 25% Start-Up
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