Gold Resource Corp (NYSE: GORO)

Gold Resource Corporation is a mining company engaged in the exploration, development, and production of precious and base metals. The company operates primarily in Oaxaca, Mexico, where it produces gold and silver doré and copper, lead, and zinc concentrates from its Don David Gold Mine. Additionally, Gold Resource Corporation holds the Back Forty Project in Michigan, USA, a polymetallic deposit containing gold, silver, copper, lead, and zinc, which is currently in the permitting and development stage.

Gold Resource Corporation generates revenue through the sale of metal concentrates and doré produced at its Don David Gold Mine in Mexico. The company sells its output to a small number of customers, with two customers accounting for 99% of revenue from this operation in 2025. Revenue is derived from the production of gold, silver, copper, lead, and zinc, which are processed at the DDGM facility and sold under standard industry terms. The Back Forty Project does not yet generate revenue as it remains in the pre-production phase.

The company operates through the following segments:

• Don David Gold Mine: This segment encompasses the production stage properties in Oaxaca, Mexico, including the Arista underground mine and the associated processing facility. The Arista Mine has been expanded over time with the development of the Switchback vein system in 2016 and the Three Sisters vein system in 2025. The segment also includes historical underground mining at the Alta Gracia Mine from 2017 to 2019, with limited surface drilling resumed in the fourth quarter of 2025. The Don David Gold Mine segment produces gold and silver doré and copper, lead, and zinc concentrates from ore mined at the Arista Mine.

• Back Forty Project: This segment represents the company’s 100% interest in the polymetallic Volcanogenic Massive Sulfide deposit located in Menominee County, Michigan, USA. The Back Forty Project contains gold, silver, copper, lead, and zinc mineralization and is held through ownership and leases with the State of Michigan. Optimization work completed in the third quarter of 2023 led to the release of the Back Forty Project Technical Report Summary, effective September 30, 2023, which indicates a more robust economic project with reduced environmental impacts. The company is currently advancing toward a feasibility study and permitting process, with expectations to begin permitting in 2026.

Gold Resource Corporation operates in the competitive global mining industry, where it faces competition from other producers of precious and base metals for access to capital, skilled labor, and mineral properties. The company’s competitive advantages include its long-standing operational presence in the San Jose structural corridor in Oaxaca, Mexico, its control of a large land package spanning 55 kilometers, and its integrated mining and processing infrastructure at the Don David Gold Mine. The advancement of the Back Forty Project in a favorable mining jurisdiction like Michigan further enhances its portfolio diversification and growth potential.

The company’s customer base consists primarily of industrial buyers and metal traders who purchase its concentrates and doré for further refining. During the year ended December 31, 2025, two customers accounted for 99% of the revenue from the Don David Gold Mine. While the filing does not disclose the specific names of these customers, Gold Resource Corporation indicates that it believes it could locate alternative purchasers on similar terms should relationships with its current customers be interrupted.