Gold Resource Corporation (NYSE American: GORO) (the “Company”) is pleased to announce preliminary fourth quarter production results from its Don David Gold Mine that are a significant improvement from previous quarters and represents 45% of the full-year production for 2025. The net result is a significantly improved year-end balance sheet of $25 million and no debt. During the quarter, the Company’s production profile has transitioned into more of a silver producer, accounting for about 80% of its revenue, including a record sale of 663,503 ounces of silver, 1,785 ounces of gold and a total gold equivalent (AuEq) ounces of 10,413. For the twelve months ending December 31, 2025, the company sold 23,125 AuEq ounces.

“We are extremely pleased to report a such strong finish to 2025, reflecting the successful turnaround in operations and increasing ore production from the new Three Sisters area where higher grades and improved production, combined with record high metal prices,” said Allen Palmiere, President and CEO. “During the quarter, we realized an average sale price of $55 per ounce of silver and $4,234 per ounce for gold. In 2026, we expect continued leverage to the silver price with 40% of our production from the Three Sisters area. Overall, we are pleased with the mine’s performance, which reflects the execution of the operational plans and new equipment we outlined a year ago. I would like to thank the entire team for their focus and execution in delivering these outstanding operational results.”

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About GRC:

Gold Resource Corporation is a gold and silver producer, developer, and explorer with its operations centered on the Don David Gold Mine in Oaxaca, Mexico. Under the direction of an experienced board and senior leadership team, the Company’s focus is to unlock the significant upside potential of its existing infrastructure and large land position surrounding the mine in Oaxaca, Mexico and to develop the Back Forty Project in Michigan, USA. For more information, please visit the Company’s website, located at www.goldresourcecorp.com.

Forward-Looking Statements:

This press release contains forward-looking statements within the meaning of Section 27A of the Securities Act of 1933, as amended, and Section 21E of the Securities Exchange Act of 1934, as amended. Forward-looking words such as “plan,” “target,” “anticipate,” “believe,” “estimate,” “intend” and “expect” and similar expressions are intended to identify such forward-looking statements. Such forward-looking statements include, without limitation, (i) the preliminary fourth quarter production results and cash balance and (ii) the Company’s production expectations for 2026. All forward-looking statements in this press release are based upon information available to the Company as of the date of this press release, and the Company assumes no obligation to update any such forward-looking statements. Forward-looking statements involve a number of risks and uncertainties such as commodity price volatility, operating risks, risks related to political, regulatory and labor matters, market trends and conditions and other factors discussed in the Company’s periodic reports filed with the Securities and Exchange Commission (the “SEC”), and there can be no assurance that such statements will prove to be accurate. The Company’s actual results could differ materially from those discussed in this press release. Forward-looking statements are subject to risks and uncertainties. Additional risks related to the Company may be found in the periodic and current reports filed with the SEC by the Company, including the Company’s Annual Report on Form 10-K for the year ended December 31, 2024, which are available on the SEC’s website at www.sec.gov.

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