Goldgroup Completes Merger With Gold Resource

Goldgroup Mining Inc. has completed its acquisition of Gold Resource Corporation, consolidating precious metals assets across Sonora and Oaxaca to establish a multi-asset junior producer listed on the NYSE and TSXV. The business combination addresses regulatory compliance mandates set by the Mexican National Antitrust Commission while enabling key operational expansions, including processing capacity upgrades at the Cerro Prieto mine and underground output from the Don David complex. The transaction directly impacts institutional investors, mining operators, and regional suppliers within Mexico's extraction and precious metals sector.

_____

Canada-based Goldgroup Mining completed its business combination with US-based Gold Resource by acquiring the entity through a merger with its wholly owned subsidiary, Goldgroup Merger Sub. Goldgroup considers the combination of both companies’ assets to position the company to become a leading Mexico-focused junior precious metals producer.

The transaction was executed pursuant to an Arrangement Agreement and Plan of Merger originally dated Jan. 25, 2026, and amended on May 15, 2026. Following the transaction, Gold Resource Corporation survived as a wholly owned subsidiary of Goldgroup Mining.

Under the terms of the agreement, shareholders of Gold Resource are entitled to receive 0.3619 common shares of Goldgroup Mining for each share of Gold Resource common stock held. 

The closing of the business combination followed the satisfaction of several corporate and regulatory conditions. Approval from the shareholders of both entities was secured on July 2, 2026. Regulatory authorization from the Mexican National Antitrust Commission (NAC) was granted on April 23, 2026. Court and stock exchange approvals included final sanction from the Supreme Court of British Columbia on July 6, 2026, alongside final approval from the TSX Venture Exchange (TSXV). To maintain compliance with the NAC ruling, the company must submit closing documentation and final tariff determination metrics within 30 business days of the transaction closing to avoid daily coercive financial penalties.

Following the merger, Gold Resource was delisted from the NYSE. Goldgroup Mining will begin trading on the NYSE under the ticker symbol GORO, terminating its quotation on OTC Markets. Gold Resource will also apply to cease to be a reporting issuer in the relevant Canadian jurisdictions. On the TSXV, Goldgroup Mining updated its ticker symbol from GGA to GORO. 

Reconstitution of Board and Executive Leadership

The corporate transaction included a restructuring of the board of directors and executive leadership team of Goldgroup Mining; Ron Little, Lila Manassa Murphy, Nicole Adshead-Bell, Luis Felipe Medina, and Francisco Javier Reyes de la Campa were appointed to the board of directors.

The executive management team was reconstituted with the appointment of Allen Palmiere as President and CEO, Chet Holyoak as CFO, and Armando Alexandri as COO. “The business combination of Goldgroup and Gold Resource represents a transformational milestone. With the combined assets and resources of both entities, we expect Goldgroup to become a leading, Mexico-focused junior precious metals producer. This represents a tremendous opportunity, and we look forward to the continued growth and development of the company,” Palmiere said.

Goldgroup and Gold Resource Asset Integration

The completed business combination creates a multi-asset producer with active projects across Mexico and the United States. Goldgroup contributes two core assets located in Sonora, led by the 100%-owned Cerro Prieto open-pit heap leach gold mine. Situated across 6,980ha of mining concessions in the Cucurpe Mining District 52km from Magdalena de Kino, Cerro Prieto has remained in continuous production since 2013, generating 136,000oz of gold over 11 years ending September 30, 2025. While recent annual output averaged 8,174oz under an initial crushing capacity of 2,400t/d, the company installed a second crushing circuit to elevate operational capacity above 4,200t/d.

This operational enhancement supports a long-term strategy to expand throughput to 5,000t/d, raise overall gold production beyond 30,000oz per year, extract an additional 9,000oz annually through pad re-leaching, and commence tailings reprocessing, as detailed by Goldgroup. Updated technical filings outline a Measured and Indicated resource at the Esperanzas Deposit of 37,209oz of gold contained in 3,128,843t grading 0.37g/t, along with an Inferred resource of 1,504oz in 131,536t grading 0.36g/t at a cut-off grade of 0.20g/t. Ongoing exploration across adjacent mineralized structures targets a 3- to 5-year mine life extension.

Goldgroup also holds the San Francisco project in Sonora. The San Francisco property covers 33,667ha and contains 1.226Moz of Measured and Indicated gold resources across two open pits, supported by heap leach processing infrastructure and targeted for operational restart between late 2026 and early 2027. 

Gold Resource contributes its flagship 100%-owned Don David Gold Mine complex, an underground polymetallic operation situated across a 55,000ha land position along the San Jose structural corridor in Oaxaca. Centered on the Arista underground mine and processed at the nearby 1,800t/d Aguila flotation plant, technical estimates state Proven and Probable reserves at the Arista mine of 652,000t. Reserves carry average grades of 1.19g/t gold, 195.7g/t silver, 0.18% copper, 0.82% lead, and 2.49% zinc. Beyond its core Mexican producer, Gold Resource holds the Back Forty project, a feasibility-stage gold-rich volcanogenic massive sulfide development asset located in Michigan, United States.