After Expected Business Combination of Gold Resource and Goldgroup Mining, Combined Company Will Be Ineligible for Russell 2000 Comprehensive Factor Index Due to National Eligibility Requirements

DENVER--(BUSINESS WIRE)--Gold Resource Corporation (NYSE American: GORO) (the “Company,” “we,” “our,” or “GRC”) announced that it has received notification from the FTSE Russell that following the Company’s previously announced merger (the “Merger”) with Goldgroup Mining Inc. (“Goldgroup”), the comb