GoldMining Commences 2026 Exploration Drilling Program at its Yarumalito Gold-Copper Project, Colombia
GoldMining Inc. says it has started a fully funded ~1,200-metre diamond core drilling program at its 100%-owned Yarumalito gold-copper project in Colombia’s Mid Cauca belt. The company will follow up relogging-based targets and test expanded zones of the P-1 porphyry, building on prior intercepts including 257 m at 0.50 g/t Au and 0.1% Cu.
How this was made

The 30-second read
Why it matters
The company is executing a systematic, fully funded core drilling program (~1,200m) with three holes targeting P-1 porphyry geometry/extents and a fourth targeting epithermal vein overprint from abandoned workings; this sets up future assay-driven re-rating potential.
Market read
Execution milestone (drilling underway) for a resource-stage Au-Cu project; trading focus will shift to forthcoming drill results versus historical intercepts and inferred resource assumptions.
What to watch
Key risk is geological model uncertainty—targets are based on relogging and step-outs; permitting, drilling recovery, and assay turnaround timing can also affect near-term trading.
Background
GoldMining is advancing its 100%-owned Yarumalito Au-Cu porphyry/epithermal system in Colombia’s Mid Cauca belt, building on historical core relogging and an existing inferred resource (effective Apr 1, 2020).
Ticker impact
GoldMining started a fully funded ~1,200m core drilling program at its 100%-owned Yarumalito Au-Cu project to test expanded P-1 porphyry zones.
Likely modest positive bias around initial drill mobilization/early assays; larger repricing depends on assay grades/widths versus historical intercepts.
The release is a clear project execution milestone (drilling underway) and reiterates prior intercepts and an inferred resource base, but it provides no new assay results yet, limiting immediate magnitude.
Market effects
Supports read-across optimism for small/mid-cap gold-copper explorers in Colombia/LatAm as execution milestones can improve perceived probability of resource expansion.
Highlights continued exploration activity in Colombia’s Mid Cauca belt, potentially reinforcing investor attention on the region’s porphyry/epithermal systems.
Limited direct global impact; primarily company-specific exploration news with some sensitivity to gold and copper price moves.
Counterpoint
Drilling commencement alone may not sustain momentum without materially better grades/continuity than historical intercepts; markets can fade after the initial ‘program starts’ headline.
Key entities
- companyGoldMining Inc.
Commenced a fully funded ~1,200m exploration core drilling program at the Yarumalito Au-Cu project to test expanded P-1 porphyry zones and epithermal overprint.
- assetYarumalito Gold-Copper Project
100%-owned project in Antioquia, Colombia; principal host is the P-1 porphyry unit with potential step-out growth.




