GoldQuest Commences 2025 Drilling Program at Romero Gold-Copper Project, Dominican Republic

Vancouver, British Columbia--(Newsfile Corp. - October 9, 2025) - GoldQuest Mining Corp. (TSXV: GQC) ("GoldQuest" or the "Company") is pleased to announce the commencement of its 2025 drilling campaign at the Romero Gold-Copper Project, located in the Dominican Republic.

This program marks the first drilling completed at Romero since 2018 and represents an important step forward in advancing the Company's strategy to both develop the Romero Mineral Resource and test high-priority greenfield targets across the Tireo Belt (Figure 1).

Figure 1: Exploration Targets at the Tireo Project

To view an enhanced version of this graphic, please visit:
https://images.newsfilecorp.com/files/1663/269693_6f215cc0845fba90_001 ...

GoldQuest is currently drilling hole LTP-171 (Figure 2), which has reached a depth of 220 metres, focused on metallurgical testwork to support the Romero development studies. A second drill rig, already mobilized, will commence further metallurgical drill holes later this week. The Company also plans to mobilize a third drill rig to the Cachimbo target to begin a 5,000-metre greenfield exploration program in early November, aimed at expanding gold-copper resource potential within the belt.

Figure 2: 2025 Metallurgical Drilling

To view an enhanced version of this graphic, please visit:
https://images.newsfilecorp.com/files/1663/269693_6f215cc0845fba90_002 ...

Recent technical work has included a comprehensive review of district and local structural geology, which enhances the understanding of gold-copper mineralization controls and informs ongoing 3D structural modelling. GoldQuest has also been working with a senior geophysicist to reprocess and reinterpret historical geophysical datasets, improving the targeting of both brownfield and greenfield prospects.

Status of key technical activities:

Target	Task	Completion %	Comments
Romero	Structural Analysis	100%	Relogging and mapping completed; supports resource update and metallurgical test planning.
Romero	Geophysics	75%	Downhole magnetic data assessment complete; additional ground magnetic lines scheduled; 3D inversion model in progress.
Cachimbo	Geological Model	100%	Geological reinterpretation completed; 3D model under development to guide drill hole design.
Greenfields	Mapping and Trenching	50%	62 trenches completed; assays confirm gold mineralization in surface zones; further trenching ongoing.