Gran Colombia Gold Corp. Sandra K deposit. Colombia.

Mesothermal quartz‐sulfidic veins hosted in granodiorite rocks.

Sandra K gold ore

Presence of Galena Related to Elevated Gold Grades at Sandra K, in Drillhole DS0130 Showing 30 cm at 311.34 g/t gold (Free Gold Highlighted)

Quartz-galena vein Sandra K deposit

Source: Segovia Amended PFS Update NI43-101TR (SRK)

Gran Colombia Gold Corp.