DENVER – February 28, 2023 – Gold Resource Corporation (NYSE American: GORO) (the “Company“, “We“, “Our” or “GRC“) confirms the potential to add higher grade resources from the Three Sisters and Marena vein systems, as well as from the south-eastern deep extension of the Soledad and Sagrario vein systems where recent drill intercepts have identified precious and base metal mineralization within 100 to 120 meters from existing workings.