Gold Resource - Earnings Call - Q2 2025

Executive Summary

• Q2 2025 was operationally weak with lower tonnes and grades driving a wider net loss, while management accelerated a turnaround plan (contract miner, used fleet purchases, third dry stack filter press) to restore throughput and access higher-grade Three Sisters ore.
• Net loss was $11.5M and diluted EPS was $0.09 loss; unit costs spiked on low volume with total cash cost of $4,017/AuEq oz and AISC of $5,458/AuEq oz.
• Liquidity improved via ATM sales (~$5.6M in Q2, $8.6M YTD), a $6.28M loan, and a MXN 79.6M tax refund (~$4.0M), lifting June 30 balances to $10.4M working capital and $12.7M cash, but going‑concern risk remains until new production areas are developed.
• Stock catalysts: proof of sustained throughput gains (third filter press), contractor-led development into Three Sisters (higher grade/width), and additional financing as needed; downside risk if development slips and care‑and‑maintenance becomes likely per company disclosures.

What Went Well and What Went Wrong

What Went Well

• Engaged Cominvi Servicios (experienced underground contractor) to accelerate Three Sisters access; >1,350 meters of development completed since May and early operational changes (cut‑and‑fill in narrow veins) aimed at reducing dilution and improving grades.
• Ordered a third dry stack filter press and advanced plant optimization to raise throughput and recoveries; orders placed for good used equipment to replace aging fleet and improve availability/productivity.
• Higher gold and silver prices realized provided partial offset (Q2 realized gold $3,350/oz; silver $34.35/oz).

Quote: “With this capital, we… ordered a third dry stack filter press… [and] engaged Cominvi Servicios… to accelerate the development of the Three Sisters vein systems.” – Allen Palmiere, CEO.

What Went Wrong

• Production remained constrained by aging equipment and insufficient alternative headings, forcing mining “one face at a time” and depressing volumes/grades and sales.
• Net loss widened to $11.5M (−$0.09/share) on lower production and net sales; Company flagged substantial doubt about ability to continue as a going concern absent additional capital and successful development of new areas.
• Unit costs surged (cash cost $4,017/AuEq oz; AISC $5,458/AuEq oz) given low throughput and operating inefficiencies in the mining fleet and mill.

Transcript

Speaker 1

Good afternoon, ladies and gentlemen, and welcome to the Gold Resource Corporation Q2 2025 earnings call. At this time, all lines are in listen-only mode. Following the presentation, we will conduct a question-and-answer session. If at any time during this call you require immediate assistance, please press star zero for the operator. This call is being recorded on Wednesday, August 6, 2025. I would now like to turn the conference over to Mr. Chet Holyoak. Thank you. Please go ahead.

Speaker 0

Thank you, Ina, and good morning to everyone. On behalf of the Gold Resource team, I would like to welcome you to our conference call covering our second quarter 2025 results. Before we begin the call, there are a couple of housekeeping matters I would like to address. Please note that certain statements to be made today are forward-looking in nature and, as such, are subject to numerous risks and uncertainties, as described in our annual report on Form 10-K and other SEC filings. Please note all amounts referenced during this presentation are in US dollars unless otherwise stated. Joining me on the call today is Allen Palmiere, our President and CEO. Following our prepared remarks, we will be available to answer questions. This conference call is being webcast and will be available for replay on our website later today.

Yesterday's news release that was issued following the close of the market and the accompanying Form 10-Q have been filed with the SEC on EDGAR and are available on our website at www.goldresourcecorp.com. I will now turn the call over to Allen.

Speaker 2

Good morning, everyone, and thank you, Chet. I'd like to welcome all of you to the second quarter conference call. I'll be making a few prepared remarks, followed by an opportunity for questions and answers. I'd like to begin by addressing a few key points regarding our performance and outlook. As discussed previously, 2024 presented several challenges for us, and many of those issues persisted into the first half of 2025, as demonstrated, unfortunately, by our financial performance. Specifically, we continue to experience production constraints stemming from limited availability within our aging mobile mine equipment fleet, compounded by a lack of sufficient mining bases. These factors led to production levels declining for the first half of the year. While the situation has certainly been difficult, it was anticipated. Accordingly, we were and are very focused on cash management, and I'm proud of our team as it rose to the occasion.

Thanks to a private placement and the significant income tax refund in Q1, ATM sales in Q1 and Q2, and our securing of a loan in Q2, we have obtained sufficient funding to execute the plans that we have previously discussed. I'm pleased to share that we now have momentum on our side and have begun executing on many of the initiatives we've been discussing over the past several months. We continue to prioritize infill and exploration drilling near the known resources, and as the press release last week disclosed, we're having significant success. The Three Sisters remains a focus. The mineralization has opened along strike and down dip, and recent drill holes show the grade continues to be attractive, and the veins are wide enough for productive selective mining. Additionally, we're drilling the down dip extensions of both Arista and Switchback with very encouraging results.

We have engaged Cominvi Servicios, an experienced underground mining contractor, to accelerate the development into and production from the Three Sisters vein system. To refresh everyone's memory, the Three Sisters is a new vein swarm that was first discovered a couple of years ago. It is between the two original swarms or mines known as Arista and Switchback. It is higher in elevation than Switchback and is closer to the portal or the entrance to the mine, thus reducing the cost of haulage and, importantly, ventilation. Most importantly, it is higher up on the geological column, which results in higher precious metal grades. The higher grades will have a significant impact on the mine's profitability. By using a contractor, we will be able to access this area more quickly than originally anticipated, allowing us to bring forward high-grade zones earlier in the mine plan.

Accelerating access to this area is expected to have a positive impact on profitability. I'm very happy to be able to tell you that last week I was underground in the mine and saw the first production stope from the Three Sisters being pulled. This is a major inflection point for the Don David Mine, as this area represents the future. By year-end, we expect fully 50% of our production to be coming from the Three Sisters. We have also changed our mining methods for most of the mine. Historically, the Don David Mine has been a long hole mine, as the widths of the veins lent themselves to this mining method. Over time, the width of the veins has decreased, and accordingly, we're in the process of transitioning to a mining method known as cut-and-fill. This method is more selective and results in much lower dilution in narrow veins.

Specifically, we've been averaging about 40% dilution with long hole mining in narrow veins, and with cut-and-fill, this has been reduced to 17% in July. This translates into less tons mined while recovering the same metal. Less tons implies lower mining costs and milling costs for the same amount of metal recovered. The changeover takes time and continues, but by the end of the third quarter, we will be seeing the benefits. We've begun acquiring used equipment to begin replacing our aging mobile mining fleet. The current equipment is old and requires substantial maintenance, which in turn reduces its availability and efficiency. Our approach to upgrading the fleet is measured and deliberate. We are focusing on acquiring gently used, hopefully, readily available, and appropriately sized equipment that aligns with the needs of our operation.

We're starting with the most critical replacements and will expand purchases gradually based on operational priorities and necessity. This approach is justified by the long lead time for new equipment and by the change in mining method. Mining more selectively requires smaller equipment. For instance, long hole mining utilizes six-yard scoops. Scoops are basically an underground loader with a big bucket. Six yards, we're going to be utilizing two and a half yard scoops going forward, which allows us to mine selectively, narrower openings, less dilution, and a higher recovery of metal. We've placed an order for a third dry stock filter press to expand our processing capacity. Currently, our throughput is constrained by the limitations of the two existing filters. Adding a third unit will eliminate this bottleneck, allowing us to process more ore, but critically maintain a constant feed rate, which is a prerequisite for good metal recovery.

This increase in capacity and recovery is expected to drive higher payable metal and improve profitability. The company has also initiated a comprehensive analysis of reagent usage and process flow within the processing plant. This review has already led to changes in reagents, resulting in improved metal recovery and payability. Payability is the term that is used to describe the quality of the concentrate produced, and by increasing payability, we minimize the inappropriate metals reporting to various concentrates. I.e., we reduce the amount of lead reporting to the copper concentrate and vice versa, thus improving the amount of payable metal because we only get paid for copper in the copper con, and we only get paid for lead in the lead con. Early results have been very encouraging, and as the analysis continues, we expect to see further announcements in both recovery rates and overall metal payability.

Thank you all once again for joining the call and for your continuing support during these challenging times. The good news is that we're beginning to see positive momentum. Our plan is being implemented as intended. Everything we're doing is part of a deliberate and controlled strategy, and we're confident in our ability to execute it successfully. While the turnaround will take time, key developments such as the acceleration of the Three Sisters vein system, the arrival of newer equipment, ongoing enhancements to the processing facility, and continued exploration success are positioning us very strongly for the future. We firmly believe that the Don David Mine will once again become a significant cash generator. Now, with that, I'll turn the call over to the operator for questions.

Speaker 1

Thank you. Ladies and gentlemen, we will now begin the question-and-answer session. Should you have a question, please press star followed by the one on your telephone keypad. You will hear a prompt that your hand has been raised, and should you wish to cancel your request, please press star followed by the two. If you are using a speakerphone, please lift your handset before pressing any keys. One moment, please, for your first question. Once again, should you have a question over the phone, please press star followed by the one on your telephone keypad. There are no questions at this time. Mr. Allen Palmiere, please proceed.

Speaker 2

Thanks, operator. Thank you again for joining this call. I would like to believe that explanations were so concise that no questions arose, but if you have any follow-up questions, I think you all know how to contact us. I'd be happy to answer them in person or online. That being said, thank you very much, and we will be talking to everyone at the end of Q3. Thank you, operator.

Speaker 1

This concludes today's call. Thank you for participating. You may all disconnect.