Gold Resource Corporation announced the results of one of its recent step-out exploration drill holes from its 150-hole, 34,000-meter, 2023 drill program at Don David Gold Mine ("DDGM"). Hole 523136 shows a width of 17.3 meters grading 12.54 g/t Au/Eq1, which includes 9.4 g/t Au and 263 g/t Ag (15.0 m true width). The exceptional width and grade appears to occur at the confluence of two veins (Sandy 1 and Sandy 2) that are part of the Gloria and Three Sisters vein arrays in the upper portion of the Mine, located approximately 250 meters below surface.

The program has been testing this previously unexplored area of the deposit in order to discover and delineate potentially high-grade resources that are more easily accessible. In addition, these wider and higher grade veins are closer to the surface and will further improve their economic impact to future mine plans. Drilling continues to identify significant ore-shoots within the newly defined inferred resource shells of veins in the Gloria /Three Sisters vein system, where positive results and recent geologic interpretation have defined a robust mineralized horizon between approximately 650 and 750 m ASL, where the Gloria and Three Sisters vein merge.

This horizon appears to be extending upwards, highlighted by the recent results from Hole No.523136, intersected at an elevation of 762 m ASL. The Gloria /Three Sisters vein system continues to remain open in all directions. Year-to-date, more than 150 drill holes and 34,000 meters of core have been drilled as part of the 2023 underground drill program at the Arista mine.

The program continues to successfully advance exploration objectives of identifying new mineralization and defining and upgrading additional mineral resources. All new drill results are in the process of being incorporated into a 2023 year-end estimate update due for release in First Quarter 2024.