Gold Resource shares surge 18.52% after-hours as Goldgroup Mining acquires it, creating a Mexico-focused producer with diversified assets and growth potential.

Gold Resource Corporation (GORO) surged 18.52% in after-hours trading following the announcement that Goldgroup Mining agreed to acquire it in a reverse triangular merger. The deal values GRC shares at a 39% premium to their Jan. 23 closing price, with GRC shareholders receiving 0.3619 Goldgroup shares post-consolidation. The merger creates a Mexico-focused junior producer with diversified assets, including GRC’s Don David Gold Mine and Goldgroup’s Cerro Prieto Mine, enhancing production scale, cash flow, and exploration potential. The transaction, unanimously approved by both boards, is expected to close in H2 2026, pending regulatory and shareholder approvals. The premium valuation and strategic synergy of combining operations, along with Mexico’s favorable mining investment climate, were key drivers of the sharp after-hours rally.