Good morning, ladies and gentlemen, and welcome to Nexa Resources S.A. fourth quarter and full year 2025 earnings conference call. Please note that today's event is being recorded and broadcast live via Zoom, with access also through Nexa Resources S.A.’s Investor Relations website. A slide presentation accompanying the webcast is available for download, as well as a replay of the conference call following its conclusions. As a reminder, all participants are currently in listen-only mode. Following today's presentation, we will open the floor for questions. To ask a question, if you are joining via Zoom, please click Raise Hand. If your question is answered, you can lower your hand by clicking Put Hand Down. You may also submit your questions via the Q&A icon at the bottom of your screen. Please include your name and company when submitting your question. For participants joined by phone, press star followed by 9 to raise or lower your hand. Once announced, press star followed by 6 to mute or unmute your microphone. Written questions that are not addressed during the call will be answered afterward by the Investor Relations team. Questions from media outlets will be handled separately by our Corporate Affairs team. Now, I would like to turn the conference over to Mr. Rodrigo Cammarosano, Head of Investor Relations and Treasury, for his opening remarks. Please go ahead.

Good day, everyone, and welcome to Nexa Resources S.A. fourth quarter and full year 2025 earnings conference call. We appreciate your time and participation today. During the call, we will discuss Nexa Resources S.A.’s performance as detailed in the earnings release issued yesterday. We encourage you to follow along with the presentation available through the webcast. Before we begin, please turn to slide number 2, which contains our forward-looking statements disclaimer. We ask that you review the information regarding these statements and the associated risk factors. Joining us today are our CEO, Ignacio Rosado, our CFO, José Carlos del Valle, and our Senior Vice President of Mining Operations, Leonardo Nunes Coelho. With that, I will now turn the call over to Ignacio for his remarks. Ignacio, please go ahead.

Thank you, Rodrigo. Good day, everyone, thank you for joining us today. Starting on slide number 3, Nexa Resources S.A. delivered a strong finish to the year with our fourth quarter results demonstrating consistent operational execution and the benefits of our disciplined focus on safety, efficiency, and cost management, all within a supportive pricing environment. On the mining side, zinc production reached 91,000 tons, a solid increase both quarter-over-quarter and year-over-year. This performance was driven by stronger results across all our operations, with Aripuanã standing out as it achieved its highest quarterly production to date, a clear reflection of its growing operational stability. In our smelting division, total zinc sales were 142,000 tons. While Cajamarquilla continued to deliver a stable output, the sequential volume was constrained by lower production at our Brazilian smelters and softer demand for zinc oxide. Financially, the operational performance translated into our strongest quarter of the year. We reported net revenues of $903 million and adjusted EBITDA of $300 million, with both metrics showing relevant improvement across all comparable periods. This was underpinned by higher realized prices for zinc and our key by-products, combined with our increased mining volumes. We recorded a net income of $81 million or $0.38 per share and generated $51 million in free cash flow. As a result, our net leverage improved to 1.7 times, further strengthening our balance sheet. Looking now at the full year 2025, zinc production totaled 316,000 tons, successfully achieving our consolidated mining production guidance, with all individual metals also landing within their respective target ranges. In smelting, total metal sales reached 567,000 tons, which is in line with the midpoint of our guidance. From a financial perspective, full year net revenues were $3 billion, while adjusted EBITDA reached $772 million, one of the strongest levels in the…

Thank you, José Carlos. Turn now to the zinc and copper markets on slide number 13. As you can see, zinc prices remained well-supported throughout 2025. This strength was largely driven by persistent concentrate tightness and substantially low LME inventories. Treatment charges, particularly in China, averaged negative levels during the year, a clear reflection of raw material scarcity. Imported TCs ended the year around $60 per ton, is still well below mid-cycle conditions. Structurally, the zinc market continues to reflect limited near-term mining supply growth relative to smelting capacity. This imbalance has supported prices, even against a backdrop of macro and trade-related volatility. Looking ahead to 2026, we expect a gradual improvement of mining supply, which should support a modest recovery in treatment charges from the historically low levels seen in 2025. However, this recovery is likely to be regionally distinguished. In China, smelters are expected to calibrate capacity utilization based on domestic concentrate availability and TCs for imported concentrate. Outside China, high energy costs and sub-historical TCs may continue to constrain margin expansion in the near term. Zinc prices should remain supported, at least in the first half of 2026, by tight inventories, resilient demand, and a softer US dollar environment. Against this backdrop, Nexa Resources S.A. integrated mine-to-smelter platform remains a key differentiator. It allows us to partially mitigate concentrate market volatility and preserve margin resilience across cycles. Turn now to copper. Prices appreciated in 2025 on the back of supply discipline and sustained demand driven mainly by electrification. Trade policy volatility added uncertainty during the year, the underlying structural fundamentals remain constructive. Incremental supply additions are unlikely to fully rebalance the market in the near term, meaning medium-term supply constraints remain a key theme supporting copper price. Let's turn to slide 14 for a look at precious…

Thank you, Rodrigo. Turning to slide number 16. Before we open the floor for Q&A, let me close by reinforcing our strategic drivers and priorities. Aripuanã continues to be a key near-term catalyst. The fourth filter is progressing on schedule and will unlock full production capacity in 2026, positioning the asset to further strengthen cash generation. Supported by a long reserve life and resource base, Aripuanã is a core contributor to our long-term value creation. At Cerro Pasco, the integration project targets a relevant life of mine extension within a well-established mineral region. The project enhances asset integration, improves operational flexibility, and enhances the profitability profile of the entire complex. Exploration continues to deliver across our assets, paving the way to further life of mine extensions and reinforcing the quality of our asset portfolio. At the same time, we remain disciplined in our approach to growth. We continue to evaluate value accretive opportunities selectively. Operational and financial discipline remain central to our strategy. We are focused on generating sustainable cash flow to continue strengthening our balance sheet and to support a balanced capital allocation approach that includes deleveraging and shareholders' return. Finally, ESG continues to evolve as a core pillar of how we manage the business at Nexa Resources S.A. In 2025, we enhanced our governance framework, improved methodological consistency in our public targets, and reinforced the alignment between sustainability commitments and operational realities. Our goal is clear: increase transparency and ensure ESG execution strengthens the long-term sustainability of the business. As we look ahead, we enter 2026 with improved operational stability, disciplined capital allocation, and a well-defined set of priorities focused on business resilience and consistent shareholder returns. With that, let's open the floor for your questions.

Thank you. We will now begin the question and answer session. To ask a question, if you are joining via Zoom, please click the Raise Hand button. You may also submit your question using the Q&A icon at the bottom of your screen. Please include your name and company when typing your question. For participants joined by phone, press star followed by 9 to raise or lower your hand. Once announced, press star followed by 6 to mute or unmute your microphone. Our first question comes from Pedro Melo, from Citi.

Hi, can you hear me?

Hi, we can hear you.

Okay, thank you. Thanks for taking my questions. My question relates to the seasonal rainy period at the Aripuanã assets this quarter. Could you provide some color on the evolution of the asset production throughout this year, given the seasonal context of the first quarter and the inauguration of the fourth filter affecting the second half of the year, please?

Yes, it's a very good question. In January, we have To give you an idea and based on some numbers, the bottleneck that we have with these 3 filters, tailings filters, takes the plant at around 140,000-145,000 tons per month, okay? We have been delivering production at this rate during the last 6 months. In the last 3 years, the rainy season, that was very heavy, caused a lot of pressure on the filters, and that's why we needed to slower this throughput, because the filters were not performing at this capacity, okay? In the case of January, we had a rate of 140 again, and given that we are mining a high-grade zone, we produce a very high zinc equivalent production. We are in the same rate as the previous 6 months that were wet season. In February, it went also very well. We needed to reduce the throughput a little bit because we want to make sure that we pass the rainy season in a very smooth way, but we maintain the silver equivalent production, and actually we increase it because also we were accessing zones of higher grades. This is going to be the case for March, which is important. Compared to previous years, this plan shows that with this rainy season that we are facing, this plant is starting to stabilize at these levels, okay? In April, we're gonna implement the fourth filter that is gonna be in ramping up between April, May, and June. With that and the capacity of these filters, we should be able to reach full capacity in the second half of this year. We see that the rainy season is no longer a bottleneck, and we are confident that Aripuanã finally is gonna be at full capacity.

Thank you. It's so clear.

The next question came in by phone. Please state your name and company before asking your question.

Oh, hi, this is Orest Wowkodaw with Scotiabank. Can you hear me?

Hi, Orest, we can hear you clearly.

Thank you. My question is around your silver. Obviously, there's been a ton of interest in the market, with silver pricing really having moved up. We've seen some really extraordinary valuations out there for silver streams. I'm just curious, I know you have an existing stream, but I'm curious if you're at all contemplating doing additional silver streaming that could potentially bring you significant cash to just fully delever the balance sheet fairly quickly. José Carlos del Valle: Hi, Orest, thank you for the question. You're right. We are an important producer of silver, produce around 11 million ounces, this is certainly has a strong contribution in our results and in our valuation as well. As you mentioned, we do have a prevailing silver streaming agreement in Cerro Lindo that actually has a step down in probably in May of this year, when we reach a milestone of 19 million ounces. That in itself is going to bring some additional benefit to our annual results. To your specific question, whether we are considering this, I mean, no. You know, we're always looking for the best options to have a strong balance sheet and to maximize the balance of having a, you know, strong financials, the investment-grade rating, and the needed cash. We are confident with the structure that we have today. We view positively the recent trend in prices, not just of silver. We're confident that with that, we will be able to generate a strong cash flow and continue with our commitment of reducing debt in the coming years.

Okay. It's not something that's a high priority right now? José Carlos del Valle: No, it's not.

Okay. Thank you.

Once again, if you would like to ask a question, please click on Raise Hand at the bottom of your screen. The next question comes from Camilo Pardo from Kallpa Securities.

Hello, Rodrigo. Good morning. Thanks for taking my question. My name is Camilo Pardo. I'm at Kallpa Securities, Peru, and my question is related to the one before, and it is: how should we think about the cash flow impact of the Cerro Lindo silver stream in 2026 and 2027, if applicable, considering that deliveries are priced at a fixed percentage of a spot?

Yes. Hi, Camilo. Thank you for the question. Yeah, as I mentioned, you know, we've had this silver streaming agreement for a while, and there's a step down that is reached when we deliver 90 million ounces. This is going to happen in the next few months. We and these percentages that are committed to the silver streaming agreement will go down from 65% of the Cerro Lindo silver production to 25% of the Cerro Lindo silver production. There's 40% that in the past had to be delivered to the streamer, and now will stay within Nexa Resources S.A. You can do the math, you know, at the current prices, what the impact of that will be.

Thank you very much.

I would like to turn the call over to Mr. Rodrigo for the writing question. Please go ahead.

Thank you, operator. We have one first question here from the audience. The question is, recently, there has been some news related to strong rains in Peru. Can you comment if there has been any incident or any an incident in any of our operations or logistics?

Yes, yes, there were. Yeah, Peru is facing again the El Niño phenomenon, and we are not facing any impact on production and on logistics now. We have been working through the years in this. We had some event in Cerro Lindo of summer heavy rain, nothing happened, and we are managing that, and production hasn't been impacted, and in the case of Pasco as well. We are well prepared today for those events. We don't know what will happen in the future, of course, but so far we haven't been impacted by that.

Thank you, Ignacio. The first question was from Orlando Barriga from Credicorp Capital. We have a second question here, is: Can you provide color on Phase 2 of the Cerro de Pasco integration project, and, especially in regards to the start-up date and when we expect to have access to high-grade reserves at Atacocha?

This is a very good question, and this is a very good problem to have, I would say. We don't have any specific date because we are already starting on planning this second phase, because we have been drilling heavily in the intersection of the 2 mines, and because of that, we have been finding a lot of resources with very high grade. Because of that, we decided to postpone this phase 2. Having said that, we will still drill this intersection, and in, I would say in 1 or 2 years, we will have an inventory of reserves that is more important for us, and with that, we will build a mine plan. We don't have any specific date to access high grades at Atacocha. They are good grades, probably the intersection have a higher grades, the NSR is higher. We will know eventually when we will have the mine plan, we will keep the market informed, for the time being, it's a very good problem to have, specifically, we don't have a date, we will have some color in the next one or two years.

Well, thank you, Ignacio. We have another question from the audience. Is there, and there is this ambition of the management to use the instrument, I believe it is the one that José Carlos mentioned, to lock in the benefits of currently high silver prices? José Carlos del Valle: Yes, hi. As I mentioned, we're not considering silver streaming as an option today. It's not a priority. We always listen to proposals. Obviously, there's a lot of interest in silver. It's currently not a priority.

Thank you, Jose Carlos. We have another question that comes from Omar Avellaneda, from Compass Group. Can you provide an update on Ayawilca project and Tinka Resources investment?

Yes. Well, in Ayawilca, we said before, it's a very good project, and we are always assessing what we are gonna do with this project. The environmental impact study was disapproved, and we are now at the stage that we have to sit with the government to see how we perceive this as a this important project going forward. For the time being, we don't have any specific action for that, especially only sitting with them and see how can we envision this in the coming years. In the case of Tinka, there was a follow-up, the, on equity that we didn't.

We decided not to go through, because, we believe that is a very important asset, but we have other priorities, so we got diluted. Okay? I guess there is another question around, in that, in also, in all that around the elections.

Yeah. Let me read the question again. There's a sequential question from Omar, which is: "Can you comment on current electoral environment in Peru, and the company thoughts on the, on this matter?

Yeah. Well, it's a, it's a shame that we have another president that is gonna stay for the next 3 months in Peru. The last one lasted only 4 months, and there is a lot of political noise around this, and it's very, very difficult to digest, especially for people outside Peru. Having said that, I would say that the economic context of the country is very strong, and the economic development of the country, in a sense, does not follow this political problems that we face. Okay? Regarding the new president that will come, it's very difficult to say. We have to wait until the first round that is happening in April. In any case, in all of these years, Peru has been a stable country from an economic point of view, with a stable exchange rate, growing, and the political environment does not impact most of the economic development of the country. In the mining sector specifically, we, our surroundings, our stakeholders, especially communities, we have very good relationships with them in most cases, and they also don't follow these political problems that we are facing. Actually, the relationship that we have with them and the way we treat that relationship from an economic point of view is the thing that matters, okay? That's why this new president won't influence in the next three to four months in the way we, our relationship with communities. We'll see what happens in April, and we will, we can, we come back to that question later on, okay?

Thank you, Ignacio. we got another question. from Orlando from Credicorp Capital: "You amortize around $120 million in debt, gross debt, during the 4Q. How much are you planning on paying down in 2026 and 2027?

Thanks for the question, Orlando. Yes, as we have been mentioning in our last calls, debt repayment is a priority. In the absence of any major changes, the idea is that any excess cash that we generate, you know, we will use to pay dividends according to our dividend policy, and the rest will go to pay down debt. That's, that's the plan.

Thank you, Jose. We got another question. This is more specific in regards to the hedge of silver and gold. "Could you provide details on the floor and upper limit of the hedging program for silver and gold? José Carlos del Valle: Yes, thank you for the question. That's true. We did a small portion. We hedged a small portion of our silver production. Also taking into consideration that we have a silver streaming agreement, so it was a small portion of our silver production, mainly in Peru. The floor is around $52, and the cap is around $84.

Thank you, José. We have another question here from the audience, comes from Pedro Melo, from Citi. The question is more related to the medium-term strategy for the company. "If the company managed to implement the fourth filter for Aripuanã, execute a turnaround by reducing leverage and gross debt, with extension of mine life being constant, I mean, the replenish of the mine life, such as, let's say, with the Pasco Complex project, what should be the company's next step for long-term investments?

Yeah, very good question. As José Carlo mentioned, the idea is that with these price levels and the stability on operation that we are showing now, especially with Aripuanã, we generate a significant cash flow this year, and we try to start reducing, in a significant way, our debt. This debt was accumulated because of the Aripuanã project. Based on that and the other fronts going forward, Aripuanã is stabilizing and growing, Cerro Pasco is stabilizing and growing, and Cerro Lindo being stable, and Vazante as well, and the smelters recovering part of the profitability with a market that is changing. Nexa Resources S.A., with the current assets is in a solid position, exposed to very good prices and bringing down debt. With that, I would say that the next step is that we are very active looking for opportunities in the market, especially in copper. We have a list of alternatives that we have assessed and we are very close to. I would say that if that happens through this year, we will be more active looking for these opportunities, because the balance sheet that we will have is gonna be more flexible to try to achieve those. It's very simple: a solid company exposed to prices and trying to look for the opportunity in copper.

Thank you, Ignacio. I will hand it back to the operator. I believe we have some, a couple of questions from through the phone.

Thank you. The next question comes from Henrique Braga, from Morgan Stanley.

Hello, team. Thanks for taking my question. I just wanted to follow up on Cerro Pasco. If you could give additional details on your CapEx disbursement that you have envisioned for the project this year and the next. Thank you.

Hi, Henrique, this is Rodrigo. I can take this question. We are on track with execution of the phase one. The CapEx that we spent last year was pretty much in line with the expectation for the year, around $42 million. We believe that the CapEx for this year should be the same amount, because the idea is to complete the phase one this year. This will pave the way for phase two, just like Ignacio mentioned. Execution's on track, and CapEx so far is on budget.

This concludes our question and answer session. I would now like to hand the call over to Mr. Ignacio Rosado for his closing remarks. Mr. Rosado, please go ahead.

Thank you very much. Before we conclude, I would like to briefly address the recent intense rainfall in Juiz de Fora here in Brazil. We recognize the impact these weather conditions have had on the municipality, express our solidarity with the local community. We reaffirm that our dam structures continue to be closely monitored and remain safe, with no change in their stability levels. Safety remains at our top priority, we reaffirm our ongoing commitment to the integrity of our operations, our employees, and the communities that we operate. In this case specifically, we are providing full support to employees who have been affected by the situation and the community in general. Regarding our first quarter, we are looking forward to have a strong quarter from an operational point of view. Hopefully, we close the quarter with exposed again with these prices. We look forward to speaking with you again during next quarter. Have a great day, and thank you very much again.

Thank you. This concludes today's conference call. We appreciate your participation and interest in Nexa Resources S.A. You may now disconnect.