SGML

Never miss an important update on your stock portfolio and cut through the noise. Over 7 million investors trust Simply Wall St to stay informed where it matters for FREE. Sigma Lithium (SGML) stock is in focus after the company reported Q2 2026 earnings, with quarterly sales of US$54.7 million and a reduced net loss of US$2.64 million compared with a year earlier. See our latest analysis for Sigma Lithium. Sigma Lithium’s share price has been weak in the short term, with a 1 day share price return of a 3.5% decline and a 7 day share price return of a 6.84% decline. However, the 1 year total shareholder return of 72.07% points to earlier momentum that has moderated as investors weigh recent production updates, environmental negotiations in Brazil and a reduced quarterly net loss. If Sigma Lithium’s recent moves have you reassessing your exposure to battery materials, it could be a useful moment to scan other rare earth and related producers through our stock screener 28 best rare earth metal stocks The latest pullback in Sigma Lithium shares comes just after record quarterly revenue, stronger margins and ongoing regulatory negotiations in Brazil. Are investors reacting to the business itself or to changing sentiment around these risks and opportunities? Sigma Lithium last closed at $11.03 compared with a most followed narrative fair value of about $17.17, which frames the recent share price pullback in a different light. Read the complete narrative. This raises the question of what could turn that expansion story into a higher fair value. The narrative leans on fast revenue compounding, improving margins and a richer future earnings multiple. The interaction of those three assumptions is presented as the main driver of the valuation. Result: Fair Value of $17.17 (UNDERVALUED) Have a read of the narrative in full and understand what's behind the forecasts. However, Sigma Lithium’s reliance on a recovery in lithium prices, along with its concentration of operations in Brazil, could still unsettle cash flow expectations if conditions shift. Find out about the key risks to this Sigma Lithium narrative. With Sigma Lithium's mixed sentiment around growth, pricing and country risk, it helps to check the data yourself and decide quickly where you stand. To see what investors currently view as the main positives, review the 3 key rewards If you are rethinking your positioning after Sigma Lithium's latest update, this is a good time to broaden your watchlist with other focused stock ideas. Target potential mispricings by reviewing companies screened as 50 high quality undervalued stocks that may warrant a closer look before sentiment shifts. Strengthen your income stream by scanning for companies identified as 11 dividend fortresses that could complement growth focused holdings. Prioritise resilience by assessing stocks filtered through the 79 resilient stocks with low risk scores that may help balance out more volatile positions. This article by Simply Wall St is general in nature. We provide commentary based on historical data and analyst forecasts only using an unbiased methodology and our articles are not intended to be financial advice. It does not constitute a recommendation to buy or sell any stock, and does not take account of your objectives, or your financial situation. We aim to bring you long-term focused analysis driven by fundamental data. Note that our analysis may not factor in the latest price-sensitive company announcements or qualitative material. Simply Wall St has no position in any stocks mentioned. Companies discussed in this article include SGML. Have feedback on this article? Concerned about the content? Get in touch with us directly. Alternatively, email [email protected]

Sigma Lithium Corporation SGML used its second-quarter 2026 earnings call to emphasize cost discipline and a near-term restart of operations after a temporary suspension tied to negotiations with Minas Gerais authorities. CEO and co-chairperson Ana Cabral Gardner also kept the company’s expansion plan intact, while pushing the 240,000-ton production ramp forward by three months and outlining a larger Plant 1 opportunity. Second-quarter revenues were $54.70 million, beating the Zacks Consensus Estimate of $54.00 million. The company reported a loss per share of 2 cents in contrast to the Zacks Consensus Estimate of 15 cents. Sigma Lithium Corporation price-consensus-eps-surprise-chart | Sigma Lithium Corporation Quote Gardner said negotiations on a TAC agreement with the state of Minas Gerais were progressing constructively and that the company expected a near-term resolution. She described a best-case restart within a week and a worst case of about two weeks. The company initially stopped both mining and industrial operations after receiving regulatory notifications. Gardner said industrial operations could restart before a full agreement because the suspension was later understood to be temporary. The press release said mining and plant operations had been paused since the week of July 17, while sales of high-purity lithium fines continued. Gardner said Plant 1 can produce 330,000 tons of lithium concentrate annually when both its main and reprocessing circuits run at full capacity with sufficient fresh ore feed. That supports full-year 2027 production guidance of 330,000 tons using Plant 1 alone. The company also maintained a 240,000-ton production target for the next 12 months, shifted forward by three months. Gardner tied the higher potential to improved mine geometry, larger equipment and access to a 1.1 million-ton fresh-ore block that is 83% larger than under the prior pit design. Gardner said production growth and tighter cost control drove plant-gate costs to $401 per ton, CIF costs to $452 and all-in sustaining costs to $668. The company lowered its 2026 total cash cost guidance to $668 per ton and maintained a 2027 target of $620 as production volumes increase. Gardner said Sigma Lithium plans to resume construction of Plant 2, with installed capacity targeted at 580,000 tons per year by the end of 2027. Management also is evaluating whether to begin Plants 2 and 3 together in early 2027 or build them sequentially. Total installed capacity is targeted at 830,000 tons per year by the end of 2028. Gardner framed the expansion decision around the company’s low-cost operating position, cash generation and management’s view that lithium demand supports adding capacity. A BMO Capital Markets analyst asked about the suspension, restart timing and cash generation if mining remained offline. Gardner said the company had about $60 million of expected cash receipts entering the third quarter from prior sales and unsold material. She also said all second-quarter production was high-grade material, while lower-grade material produced during the period was held for later sale. A CICC analyst asked whether the timing of Plants 2 and 3 reflected mining, funding or other constraints. Gardner said the shift centered on maximizing Plant 1 output through full use of the reprocessing circuit rather than a funding limitation. Gardner closed the call by stressing operational control, financial discipline and the company’s ability to continue funding operations without additional equity capital. Management’s second-half priorities are clear: resolve the TAC process, restart operations, continue the mining fleet upgrade and restore full fresh-ore feed to Plant 1 while preparing the next expansion phase. SGML currently carries a Zacks Rank #3 (Hold). Its Growth Score of B, Value Score of D, Momentum Score of C and VGM Score of C give the stock a mixed profile. You can see the complete list of today’s Zacks #1 Rank (Strong Buy) stocks here. Across the Zacks style framework, Zacks Rank #3 stocks can be held, while stronger Style Scores are preferred. SGML’s Growth Score is the strongest of the four measures, while its Value Score is the weakest. The Zacks Rank can change as earnings estimates are revised after the just-reported results. Want the latest recommendations from Zacks Investment Research? Today, you can download 7 Best Stocks for the Next 30 Days. Click to get this free report Sigma Lithium Corporation (SGML) : Free Stock Analysis Report This article originally published on Zacks Investment Research (zacks.com). Zacks Investment Research

Image source: The Motley Fool. Friday, Aug. 14, 2026 at 8:30 a.m. ET Vice President of Investor Relations - Anna Hartley Co-Chair and Chief Executive Officer - Ana Cabral Gardner Chief Financial Officer - Felipe Peres Operator: Good morning, ladies and gentlemen. Welcome to Sigma Lithium 2026 Second Quarter Earnings Conference Call. I would like to inform you that this event is being recorded. [Operator Instructions] A recording of this webcast will be available on the company's website. [Operator Instructions] I would now like to turn the conference over to Anna Hartley, Vice President of Investor Relations. Please go ahead. Anna Hartley: I would like to welcome you to our second quarter 2026 earnings conference call. Joining me on the call today is Ana Cabral, Co-Chair and CEO of Sigma Lithium; and Felipe Peres, CFO of Sigma Lithium. I'd like to remind you that some of the statements made during this call, including any production guidance, expected company performance, update on mining operations, the timing of our projects and market conditions may be considered forward-looking statements. Please note the cautionary language about forward-looking statements in our presentation and press release, which are available on the Sigma Lithium website. I will now be turning the call to Ana Cabral. Ana Cabral Gardner: Thank you, Anna. I'm now going to introduce you to Sigma Lithium's Second Quarter of 2026 Earnings Presentation. Without further ado, I'll go to the next slide. During this quarter, we continue to deliver on execution excellence, cost control and operational resilience, driving value creation for our shareholders. Sigma is a large-scale, low-cost and traceable producer of lithium materials. We do not have a tailings dams. We do not use drinking water. We do not use hazardous chemicals. We do not use dirty energy. 100% of our energy is renewable, and we have not had an accident in over 1,100 days. At the bottom, there are 3 pictures that illustrate that. Pictures are more than a thousand words. We uphold at Sigma, the highest global mining standards. When you look at the left, you see our mining waste rock piles. We actively regenerate them planting graphs. So they are integrated into the environment. That's the highest G7 standards. When you look at other G7 countries to high standards, you can see the same waste rock pile next to the environment. And again, this is a high standard waste rock pile. We go above and beyond what others do. Some other countries have tailing dams. And again, very high standard, but we don't have any of that. That's why we believe that we can generate significant efficiency operationally because we can deliver our material and maintain traceability and sustainability. For example, we have managed to upgrade our mining operations in record time. Moreover, we have managed to achieve record recoveries in our Cleantech Industrial processing plant. On this slide, you can see the images of our waste rock piles, fully rehabilitated and regenerated with vegetation graphs. Once these piles come to their final shape of usage, that's the work we do. We do artificial germination and they become beautiful, integrated to the landscape. One can only see the are waste piles because of the terracing. In front of them, there's our beautiful new fleet. Again, a picture is a thousand words. Now without further ado, I'm going into the financial highlights of the second quarter of 2026. We've had an incredible quarter. The reliable and disciplined execution enabled us to surpass all of our targets. We delivered a very large cash flow, generating $27 million in cash from operations during the first half of the year. We also were able to generate high margins as a result of disciplined cost control. We maintained our high gross margin at 60%, and we delivered a record 47% EBITDA margin, the highest in our history. That's a result of disciplined cost control, lower costs and increased production volumes. We delivered 35,400 of lithium oxide concentrate this quarter, an increase of 52% over the first quarter. As a result, we also had another record, the highest net revenues in our history at $55 million this quarter. Again, discipline. We remain our low-cost leader, decreasing costs even further, $401 per ton block gate, $452 per ton CIF, $668 per ton all-in cash costs. That gives us tremendous resilience, an entrenched competitive advantage and an ability to be a cash machine. At current price levels, we're well into excess return territory. Due to our commercial flexibility, we were able to realize pretty good net lithium prices for SC5, which demonstrates how our clients are supportive and are fans of our high-purity product, $2,089. This page illustrates further what our low-cost stewardship does for us, delivers strong cash flow and high profitability. It is all about the costs. We increased production by 52%. Then as a result of the low cost, we are able to deliver the margins we referred to before. More importantly, the revenues of $97 million for the first half of the year. All of it enabled us to continue to repay debt in a very disciplined approach to our balance sheet. We managed to repay 25% of our debt over the last year, total debt. Over the last 2 years, we deleveraged the balance sheet in half. We repaid 43% of our total debt. We're now at probably the lowest levels of debt ever in our history. This enables us to continue to execute on our significant near-term growth strategy. By the year-end 2027, without building a second plant, we will be able to increase production capacity by almost 2x. Once we build 2 plants, we will be able to increase production capacity by 2.5x from 2027 to 830,000 tons. That capacity will be installed by the end of 2028. That's the result of 2 additional plants. We decided to embark on this growth strategy to take full advantage of our efficiency and the very favorable lithium markets. This slide illustrates further our cost leadership. This is the result of the financial discipline and precision in growth strategy and CapEx. Again, a page with numbers that are a thousand words. We delivered a decrease of double digits across the board. Plant gate and CIF costs decreased over 30%. Now all-in sustaining costs are back to normal, which were third quarter of 2025, which means that we still can decrease them a bit further than as we increase volumes and normalize production. Our all-in sustaining cost was $668 per ton in the second quarter. Again, that puts us well into excess return territory at current lithium prices. Here is an additional illustration of that. If we compare net prices, meaning price adjusted to 5% grade, we are delivering against CIF Asia approximately $1,400 per ton of cash profit. Now when you compare that with our competitors, you can see that we're almost neutral to lithium prices, almost as if we are the floor. That cost discipline, which enabled us to execute on our strategy so successfully has been now reflected into our cost guidance. We are now adjusting our updated guidance and lowering it to reflect the executed delivered all-in sustaining cash costs in the second quarter. So that comes down to $668 a tonne for the year of 2026. Therefore, we are on track to deliver on the year of 2027 guidance of $620 all-in cash cost -- total cash cost per ton as we continue to increase production volumes. This page illustrates how we have been able to deliver on some of the lowest costs in our industry, while at the same time, maintaining one of the world's best safety records for employees. Over 101,000 days have gone by and our employees go back home to their families safely. This is a result of our own employee engagement and our strict safety processes. Everyone feels that they are responsible for their safety and their colleagues' safety. Our TRIFR is 0. That's another 0, again, demonstrating our execution excellence. This next page illustrates how we've been able to achieve operational efficiency and maintain our high margins across the board. Gross margins stayed at 60%, EBITDA margins were all-time record of 47%, operating margins remained at 32%, and we maintained profitability with a positive net margin. Therefore, here it is an illustration of our debt reduction enabled by financial discipline. We repaid 25% of total debt in the last year, 43% of our total debt that significant deleveraged over the last 2 years. When it all comes together, one can see how our strong performance translates into cash and fully converts, making our operations self-sustaining and resilient. We sell everything, not only the high grade, but also our tailings, which are dry stacked. That adds quite a lot to our cash generation, as you can see on this page. We actually had in June 30, end of second quarter, a cash position that was enhanced by a sale of lithium materials or high grade. So in addition to it, we've also been able to sell current inventory of lithium materials of varying grades, mostly high grade. In other words, we are going to be 100% circular very soon and just sell everything that our plant generates. From high grade to low grade, we have a very wide spectrum of high-purity products that just increase our resilience and help us be fully sustainable. Without further ado, I'm going to start on our operational highlights and our production and capacity outlook, especially in light of the recent events. We have surpassed our high-grade lithium oxide production, and we're demonstrating significant operational efficiency. Our mining ramp-up surpassed guidance, and we delivered 35,000 tons in the second quarter '26. That was an increase of 6% over guidance. We are on track to deliver on our previous guidance. We just pushed it forward by 3 months. We are in a very good position to negotiate an agreement with the state of Minas Gerais, and we have cleared most of our main points. As a result, we're going to execute as planned, our additional fleet upgrade and deploy 75-ton trucks and 98-ton excavators to our site in order to increase haulage capacity. That's how confident we are that we're going to be able to successfully advance into primarizing our mining operation and continuing to ramp up our production. So when you look at it as a whole, a year later, the conclusion is that the increase in safety, the increase in operational efficiency fully validated the decision to primarize our mine. We have all of our operations under full control. And we are deploying haulage and ability to vasculate through the excavators that significantly increased our productivity and our capabilities to increase geometry of the mine as we will discuss further into this section. Here is a detailed discussion of our continued execution of the fleet upgrade that is going to take place in the third quarter of '26. We delivered on our first half targets, increasing the scale, the haulage capacity by 40%. So we're continuing on the upgrade by now bringing the excavators of 98 tons, replacing some of the 75-ton excavators and bringing in the 75-ton trucks to add to the fleet of 60-ton trucks. Now that the geometry is wider, we actually have more flexibility at the waste removal areas. So this is the second stage of deployment of large equipment. Larger machinery means more productivity. So it enables us to maintain our low cash cost operating position. Therefore, it increases our resilience as a company and help us navigate throughout the cycles. This slide illustrates visually how the work we've been conducting for the last couple of months of reassessing the geometry has paid off. We designed a new pit shell a new mining pit shell that enabled the company to access a large amount of high-grade spodumene ore. We construction ramps, brought in larger trucks. So we are able to unlock this larger block of material that will feed our industrial plant. The results are on the page quantified. The size of the block is 83% larger than the block we were able to access with the old design. At 1.1 million tonnes of fresh ore, we can produce 200,000 tons of lithium oxide concentrate. So all in, an 83% increase in raw material delivers almost 100% increase in oxide concentrate production. Lastly, this ore is a very high grade, 1.4% of fresh rock. This is how we are able to operate throughout the remaining months in full capacity, meaning using the main circuit and the reprocessing circuit because of the amount of high-grade fresh ore being delivered to the plot. This slide is basically to outline how our production expansion plans remain on track. Our forecasts were pushed forward by just 3 months. So the production forecast with only Plant 1 for the 12 months forward remains at 240,000 tonnes of high-grade lithium concentrate per year. By the end of 2027, including all circuits that the first plant has, and that includes the recirculation circuit, our production forecast is at 330,000 tonnes per year. That's a result of the plant recovery of 70% and in the main circuit and a fully working reprocessing circuit for the other material. As it comes to construction, we plan to have an installed capacity at the end of 2027 once we complete the construction of the second plant of 580,000 tonnes of high-grade lithium concentrate per year. That incorporates the first plant and its reprocessing circuit capacity. Therefore, we plan to just greenlight Plant 2 at the beginning of January. We have flexibility on how to execute our construction plants. There is a scenario where we could greenlight both plants, Plant 2 and Plant 3 at the same time at the beginning of '27 in January. But if we don't, we would build them sequentially. So by the end of 2028, we expect to have 830,000 tons of installed capacity for production. With that kind of capacity and with our current plant, the cash flow forecast, and again, we're just estimating Plant 1, which is already built, they vary just according to current price ranges estimated by Wall Street research analysts. So at the low end of the range at $1,500 per ton, we could be generating cash flows that would go from $166 million if you take into account 12 months forward or $360 million once we contemplate production during 2027. If the prices go to $2,500 per ton, we would be looking at cash flows that would be $235 million if we just stay on the production for 12 months forward, but once we deliver the 2027 production, which again can be done with just one plot, we reached $0.5 billion in cash flow. This is a direct result of our low-cost position, high margins and efficiency. In other words, we do not need a lot of volume to generate quite a substantial amount of cash. We're now going to make our final remarks and the conclusion of our second quarter 2026 earnings presentation. Sigma Lithium plans to deliver substantial returns to shareholders this year in 2026, plus because of our significant growth profile of production within the next 12 months. We plan also to significantly increase incremental industrial capacity. We're going to resume construction of Plant 2 and potentially build Plant 3 at the same time, given that we are in a very robust lithium market environment as we're going to discuss later, this is the time to build and to build in scale. More importantly, we have proven execution capabilities in a very experienced team. We have built our first plant in record time and commissioned it even faster. Just recently, we primarized and automated our entire mining operations, upgrading the fleet once and now we're upgrading it again to increase haulage capacity. All of that done while maintaining the world record in employee safety with over 1,100 days without accidents. Our operational resilience is based on these 2 pillars, this financial discipline regarding when to deploy CapEx for growth and timing is now, but more importantly, on relying and monetizing our structural low-cost advantages to convert that into cash flow, which basically sustains the company throughout all lithium markets. Our sector is going through a unique moment in growth. We are enabled by AI instead of disrupted by AR. The demand growth from battery storage is, in fact, driving lithium global growth demand. AI data centers and energy security require battery storage. Battery storage requires lithium, and therefore, lithium demand is set for a decades-long growth period. The bar charts below demonstrate that if you compare 2025 year-end demand with 2026 expected lithium demand in lithium carbonate equivalent, we have a growth of 900,000 tons of LCE. If that is translated into our product, lithium oxide, you multiply it by 8. So that is approximately 7 million tons of lithium oxide concentrate to supply this year's demand projections. If we forward that almost another decade to 2035, global demand is expected to be 5 million tons of LCE. If one was to translate that into our lithium oxide concentrate product, that will be approximately 40 million tons of production. In other words, that's multiple sides of Sigma. At that level, in other words, at 800,000 tons per year expected in 2028, which is going to be our expected production with 3 plants, we will be supplying a fraction of global expected demand, approximately 2% only. That is the scale of the growth of the sector, and that is a demonstration of how companies need to be well positioned to deliver growth with low CapEx fast, which is precisely what we plan to do by 2028. Our share price, if you look at the left, has behaving very much in line with the sector. And that is actually a very piece of good news. Again, the demand growth and the fundamentals are far too strong and raise all the short-term volatility and noise. Our company has very strong operational and financial performance fundamentals, and that is the foundation of our value. Here, our low cost and our strong cash generation are those foundations. Therefore, we're clearly positioned for a re-rating because at an expected 75,000 tons of LCE equivalent of production capacity constructed by the end of next year, we are very much in line with some of our peers, which have market caps which are double our market cap. So that is what we expect to happen over the course of the year, a significant rerating. And now we move on to the Q&A. Thank you very much for joining us today. Operator: [Operator Instructions] Our first three questions comes from Joel Jackson from BMO Capital Markets. First, what was your exact production in Q2 of normal lithium concentrate and exact production in Q2 of the lower grade concentrate/fines/tailings? Two, you generated $30 million of cash flow in Q2. If the mine does not restart for the rest of Q3, what is your expected cash flow or burn? Three, what are the best and worst-case scenarios for mine restart? And when it restarts, how many months will it take Sigma to ramp it to full grade lithium concentrate production? Ana Cabral Gardner: Joe, it's great to hear from you. Let me just do the following. Let me put the page of the presentation on the screen so that I can actually better answer your question. The entire production for the quarter was high-grade material. And we've done that so that we would highlight that the plant and the mine have gone back to fully ramped position of production of ore. So that's the first part of the question. The lower grade that we produced during second quarter wasn't sold, and it's going to be sold now. When you look at the cash flow projections, this number here, the $32 million do include the low-grade material that was produced during the second quarter, and we deliberately did not sell in order to have a clean quarter of production and sales. So that, I would say, answers the first part of your question. Then the second part of your question regarding the fact that we generated $13 million of cash flow in Q2. Well, it was more. If you look at the accounting, but then you have the net inflows given that $27 million was sold but did not convert into cash, right? How much do we expect to generate into Q3? Well, that's the exact $27 million that didn't convert into cash that was sold is going to be added to the material that was produced that was not high grade and that will be sold. So for the third quarter, just to begin with, as of today, we have approximately $60 million to receive in cash flow. That's the value in blue, $32 million and the value in dashed green. Best and worst case for mine restarts. Well, best case will be to restart next week. Worst case restart, I think it would take about 2 weeks. The dialogue is going quite well. Conversations have been very constructive. But given the nature of the notifications we received and given the fact that these are mostly false acquisitions executed by local inspectors, we are being quite strict when it comes to the terms of the agreement because we want to be cleared of any wrongdoing. It won't be just a settlement. We would like to be fully cleared given that the acquisitions are false. And as we have a significant amount of cash flow to come in into Q3, we are obviously negotiating that in a position of strictness. After all, is our reputation on the line, and we thread on reputation. Operator: Our next three questions comes from [indiscernible] from [indiscernible]. First one, regarding the 2 offtake prepayments, the $96 million associated with the 70,500 ton 1-year agreement and the $50 million associated with the 40,000 ton per year 3-year agreement. Could you clarify how much cash Sigma has actually received from each agreement to date? And specifically, has the $50 million be used to repay debt as previously indicated? Two, regarding the temporary suspension related to the TAC negotiations, could you please clarify exactly which operations have been suspended? Is the suspension limited to mining activities? Or have both mining and processing operations been suspended? Secondly, given that a production suspension is clearly a material operational event for the company, why wasn't the market and shareholders informed immediately when the suspension occurred? Could you explain the company's reasoning behind the timing of the disclosure? Three, during the current production suspension, are you still able to process and ship lithium midlings? How much lithium midlings did the company ship in the last quarter? And how much are you planning to ship this quarter? Also, have you signed any additional sales or offtake agreements for lithium midlings? Ana Cabral Gardner: That's a lot to unpack. So let me take your question in pieces, right? First, regarding the offtake agreement for $96 million. We have received $60 million to date. Then in the third quarter, there are additional amounts of that payment to be received. So out of the $96 million, we received $60 million. So that's the first part of your question. That's out of the 70,500 ton offtake agreement. Then regarding the second offtake regarding 40,000 tons of material to be shipped over 3 years, given our exceptional ramp-up, we are increasing the amount of that offtake, and we're currently negotiating that increase. And indeed, when that agreement gets closed, meaning financially closed post increase, it will be 100% used to repay debt as we announced earlier. In fact, we're going to repay the debt no matter what, most likely by the end of the third quarter. There are a few liquidity alternatives available to us in order to repay that debt, that will either way repay it or refinance it with other creditors. The reason is our substantial cash generation position made it clear that we are in a very good position to move forward. The second part of your question, which is related to the TAC, we did disclose that immediately. In fact, it was on vacation when that happened. And we put together a press release immediately thereafter as soon as we could make sense of the notifications we received. So that ties back to the rest of your question, meaning, is it limited to mining activities or have both mining and processing operations been suspended? Well, if you read the notifications, it's pretty difficult to say exactly what is supposed to be suspended. So we undertook the initial approach of stopping both operations, mining and industrial. Later, as negotiations progressed, we learned that it was a temporary suspension. But as we set on the table from a position of strength, we did not reinitiate industrial operations. They're vertically integrated anyway. So the only thing that we would gain by resuming industrial operations would be to restart the reprocessing circuit. So now we're probably in a position to restart industrial operations, and we will. But we hope to have an overall final conclusion of this by next week. So I think that answers the second part of your question. But I think I'd like to reiterate, in the middle of my vacation in July, we did put out a pretty clear announcement about the TA and the suspension, unfortunately, because I was on vacation. So during the current production suspension, are we still able to process and ship lithium model? Absolutely, and that's what we've been doing. That, in fact, is the source of our resilience. When you look at the third quarter financials, the $32 million and the $27 million reflect just that in addition to high-grade material that had not been sold for the cutoff of June 30 that we hadn't shipped to the port in time to make it to the sales cutoff of June 30. So when you look at the volume sold of 24,000 versus the volume produced of 35,000, there's still a bit of high-grade material there that was sent to be shipped. The remaining of the amounts here shown are midlanes. We don't call it midlands. We call it low-grade high purity because midlanes are materials produced by flotation plants where a particle spodumene is broken. That's why our material carries significant value. In a DMS plant, the particle spodumene isn't broken. The crystal is intact. So it can be easily reprocessed with a 60% recovery into sometimes 4.7% material by our clients. Lastly, you asked whether we had signed any additional sales or offtake agreements for these materials. Well, we don't sell them on offtake basis. We sell them on a spot basis, and we're going through a very healthy bidding process for these materials. Just to illustrate, we have 300,000 tons of materials left, and we have a bid for $65 per ton. And again, as we decided not to sell any fines in the second quarter to have a clean quarter, that will probably be in addition to these 2 amounts on the screen, the 320 plus 27, we got 300,000 tons of fines, high-grade lithium fines at currently $65 per ton in a bid. So very healthy market, very robust demand. I guess I answered all of your questions. Operator: Our next question comes from [ David Feng ] from CICC. May we know if the new time line for planned construction of Phase 2 or Phase 3 is more relevant to mining plan adjustment, funding consideration or any other factors? Ana Cabral Gardner: Not really. Let me go back to the forecast here. Good things happen out of, let's say, difficult situations. So last year, when we changed mine contractor, we started to basically rely on our reprocessing circuit at the current [indiscernible] plant. So that circuit was perfected, adjusted, tested with a varying amounts and types of feed. So the result was that we learned the plant capacity, current plant capacity is actually 330,000 tonnes per year once it's fully fed with fresh ore. Why is that? Because both circuits are working at the same time, the high-grade circuit and then the low-grade circuit, which then gets reprocessed and turned into high grade, 5.1%, 5.2% of concentrate. So with full feed of fresh ore, meaning 160,000 tonnes of fresh ore, that plant can actually deliver 330,000 tonnes of material. We've known that since 2024, December when we upgraded the plant, if you look at the amount produced in the fourth quarter of '24, when we solely fed the plant fresh ore, that was the annualized throughput. As we vastly disclosed here and discussed, we have not been able to deliver fresh ore at a cadence to the plant ever since because the troubles with the old mining contractor began right after that during the first quarter and then in the second quarter. And by the third quarter, we ended up changing contractors and dismissing that contractor all along and primarizing the mine. So essentially, what we will do is to go back to full capacity of the plant by having both main circuit and reprocessing circuit at full tilt once this mine delivers material at fresh ore material in full capacity, which is 160,000 tonnes of ore per month. What we've done this quarter is a demonstration of it with 35,000 tonnes of -- we produced 35,000 tonnes of concentrate because we've been feeding fresh ore to the plant. Operator: This concludes our question-and-answer section. Now I am returning to our CEO, Ana Cabral, for her final remarks. Ana Cabral Gardner: Well, I want to thank you all for bearing with us during this presentation. And again, we're very confident in what we're doing. We have a significant growth profile. We've proven that we can execute and under fire, and we have the experience to deal with pretty much most issues. More importantly, we can prove and we have been proving that we're doing what one of our shareholders said is validation of ESG under stress. In other words, our governance and compliance are being tested out there in the open. Our social and environmental credentials and track record withstand any attempts to challenge it and withstand all the scrutiny, our operational resilience is there. Look how far we got. No one expected us to do this without raising additional capital. That's the result of our structural low cost and financial discipline. So again, I reiterate what's happening in the market, plus the way this company has been battle-tested positions us incredibly well for what's coming ahead in the second half of the year. Thank you very much for listening. Operator: The second quarter of 2026 Conference Call of Sigma Lithium has concluded. For further information, please visit the company's website at www.sigmalithiumresources.com. You may disconnect now, and have a nice day. Before you buy stock in Sigma Lithium, consider this: The Motley Fool Stock Advisor analyst team just identified what they believe are the 10 best stocks for investors to buy now… and Sigma Lithium wasn’t one of them. The 10 stocks that made the cut could produce monster returns in the coming years. Consider when Netflix made this list on December 17, 2004... if you invested $1,000 at the time of our recommendation, you’d have $421,943!* Or when Nvidia made this list on April 15, 2005... if you invested $1,000 at the time of our recommendation, you’d have $1,382,819!* Now, it’s worth noting Stock Advisor’s total average return is 983% — a market-crushing outperformance compared to 216% for the S&P 500. Don't miss the latest top 10 list, available with Stock Advisor, and join an investing community built by individual investors for individual investors. See the 10 stocks » *Stock Advisor returns as of August 14, 2026. This article is a transcript of this conference call produced for The Motley Fool. While we strive for our Foolish Best, there may be errors, omissions, or inaccuracies in this transcript. As with all our articles, The Motley Fool does not assume any responsibility for your use of this content, and we strongly encourage you to do your own research, including listening to the call yourself and reading the company's SEC filings. Please see our Terms and Conditions for additional details, including our Obligatory Capitalized Disclaimers of Liability. The Motley Fool has no position in any of the stocks mentioned. The Motley Fool has a disclosure policy. Sigma Lithium (SGML) Q2 2026 Earnings Call Transcript was originally published by The Motley Fool

Interested in Sigma Lithium Corporation? Here are five stocks we like better. Record Q2 performance: Sigma Lithium produced 35,400 tons of lithium concentrate, up 52% quarter over quarter, generating a record $55 million in revenue, a 60% gross margin and a 47% EBITDA margin. Temporary operational suspension: Mining and industrial operations were paused amid negotiations with Minas Gerais officials, though management described discussions as constructive and expected a restart within one to two weeks. Expansion and liquidity plans remain on track: Sigma reduced costs and debt, expects approximately $60 million in third-quarter cash receipts, and continues plans to expand capacity to 330,000 tons annually by 2027 and potentially 830,000 tons by 2028. Sigma Lithium Proves Shorts Wrong: Market Reversal Underway Sigma Lithium (NASDAQ:SGML) reported record second-quarter revenue and profitability as higher production volumes and lower costs supported margins, while the company also addressed a temporary suspension of mining and industrial operations tied to negotiations with the state of Minas Gerais. Chief Executive Officer Ana Cabral-Gardner said the company produced 35,400 tons of lithium oxide concentrate during the second quarter, a 52% increase from the first quarter and 6% above guidance. Net revenue reached a quarterly record of $55 million, while first-half revenue totaled $97 million. → Lumentum Just Delivered the AI Growth Investors Wanted Lithium Grab: 2 Lithium Stocks That Could Be Takeover Targets The company reported a 60% gross margin, a record EBITDA margin of 47%, and an operating margin of 32%. Cabral-Gardner said Sigma generated $27 million of cash from operations during the first half of 2026 and maintained a positive net margin. Sigma said plant-gate costs were $401 per ton in the quarter, while CIF costs were $452 per ton and all-in sustaining cash costs were $668 per ton. Cabral-Gardner said plant-gate and CIF costs declined by more than 30% and that the company had lowered its 2026 all-in sustaining cash-cost guidance to $668 per ton, reflecting its second-quarter performance. → Ryman Checks Into a $1.38B Hospitality Upgrade 3 Lithium Stocks Powering Up For Big 2023 Gains The company realized a net price of $2,089 per ton for SC5 material, according to Cabral-Gardner. She said Sigma’s cost structure provided approximately $1,400 per ton of cash profit compared with CIF Asia pricing after adjusting for grade. Management also highlighted debt reduction. Cabral-Gardner said Sigma repaid 25% of its total debt over the past year and 43% over the past two years, reducing total debt by roughly half during that period. → Joby’s Defense Pivot Accelerates With $500M Resonant Sciences Deal During the question-and-answer session, Cabral-Gardner said Sigma temporarily halted both mining and industrial operations after receiving notifications associated with negotiations over a TAC agreement with Minas Gerais. She said the wording of the notifications made it difficult to determine precisely which operations were required to stop, prompting the company initially to suspend both areas. Cabral-Gardner said discussions with the state had been constructive and that the company expected a potential conclusion the following week. She said Sigma sought to be “fully cleared” of what she characterized as false accusations raised by local inspectors rather than simply reach a settlement. She said the company could restart industrial operations and expected that the only benefit of doing so before a complete resolution would be restarting its reprocessing circuit. In response to a question about timing, Cabral-Gardner said the best-case scenario would be a mining restart the following week, while the worst-case scenario could take about two weeks. Despite the suspension, Sigma continued to ship lower-grade material, which it calls low-grade high-purity material rather than middlings. Cabral-Gardner said the company had approximately 300,000 tons of fines available and had received a bid of $65 per ton. These materials are sold on a spot basis rather than through offtake agreements, she said. Cabral-Gardner said Sigma had received $60 million to date under a $96 million offtake prepayment agreement covering 70,500 tons over one year. Additional payments under that agreement were expected during the third quarter. She said the company was negotiating an increase to a separate agreement involving 40,000 tons annually over three years. Once financially closed, proceeds from that agreement would be used to repay debt, she said, adding that Sigma expected to repay or refinance the relevant debt by the end of the third quarter. Management said $27 million of sales had not converted to cash as of June 30, and that these proceeds, along with sales of lower-grade material, were expected to contribute to third-quarter cash receipts. Cabral-Gardner said the company had approximately $60 million expected to be received in the third quarter based on material already sold or available for sale. Sigma said it is proceeding with a fleet upgrade in the third quarter, deploying 75-ton trucks and 98-ton excavators to increase haulage capacity and support a revised mine design. Cabral-Gardner said the new pit shell provides access to a high-grade ore block that is 83% larger than the previously accessible block. The company said the block contains 1.1 million tons of fresh ore at a grade of 1.4% and could produce 200,000 tons of lithium oxide concentrate. Sigma expects the larger equipment and redesigned pit geometry to support production from both its main processing circuit and reprocessing circuit. Sigma maintained its forecast for 240,000 tons of high-grade lithium concentrate during the next 12 months from its first plant. By the end of 2027, it expects first-plant capacity, including the reprocessing circuit, to reach 330,000 tons annually. The company plans to green-light Plant 2 at the beginning of 2027 and said it could potentially begin construction of Plant 2 and Plant 3 simultaneously. Sigma expects installed capacity of 830,000 tons per year by the end of 2028 if three plants are developed. Cabral-Gardner said the company’s expansion strategy is intended to capitalize on what management views as growing lithium demand, including demand related to battery storage supporting energy security and artificial-intelligence data centers. Sigma Lithium Corp. is a Canada-based mineral exploration and development company focused on the sustainable production of battery-grade lithium from hard rock deposits. The company’s flagship asset is the Grota do Cirilo lithium project, located in the state of Minas Gerais, Brazil. Grota do Cirilo comprises a fully permitted, low-altitude spodumene mine and processing plant designed to produce high-purity lithium concentrate and downstream lithium hydroxide for the global electric vehicle and energy storage markets. Since its founding in 2018, Sigma Lithium has pursued a vertically integrated approach, overseeing each stage of production from ore extraction and beneficiation to chemical conversion. This instant news alert was generated by narrative science technology and financial data from MarketBeat in order to provide readers with the fastest reporting and unbiased coverage. Please send any questions or comments about this story to [email protected]. The article "Sigma Lithium Q2 Earnings Call Highlights" was originally published by MarketBeat. View MarketBeat's top stocks for August 2026.

This article first appeared on GuruFocus. Revenue: Record net revenues of $55 million in Q2 2026, with first-half revenues totaling $97 million. Gross Margin: Maintained a high gross margin of 60%. EBITDA Margin: Record EBITDA margin of 47%, the highest in company history. Operating Margin: Operating margins remained at 32%. Cash Flow: Generated $27 million in cash from operations during the first half of the year. Production: Delivered 35,400 tonnes of lithium oxide concentrate in Q2 2026, a 52% increase over Q1. Costs: All-in cash costs decreased to $668 per tonne; plant costs at $401 per tonne and CIF costs at $452 per tonne. Realized Price: Realized net lithium price of $2,089 per tonne for SC5. Debt Reduction: Repaid 25% of total debt over the last year and 43% over the last two years. Warning! GuruFocus has detected 4 Warning Signs with SGML. Is SGML fairly valued? Test your thesis with our free DCF calculator. Release Date: August 14, 2026 For the complete transcript of the earnings call, please refer to the full earnings call transcript. Record 47% EBITDA margin and 60% gross margin in Q2 2026, driven by disciplined cost control and increased production volumes. Production of 35,400 tonnes of lithium oxide concentrate in Q2, a 52% increase over Q1, with record net revenues of $55 million. All-in cash costs decreased to $668 per tonne, positioning the company as a low-cost leader and enabling strong cash generation at current lithium prices. Debt reduced by 43% over the past two years, with plans to repay or refinance remaining debt by end of Q3 2026, strengthening the balance sheet. Expansion plans on track to increase production capacity to 330,000 tonnes by end of 2027 and 830,000 tonnes by end of 2028, with potential to greenlight two new plants simultaneously. Strong safety record with over 1,100 days without accidents and a TRIFR of 0, demonstrating operational excellence. Successful insourcing of mining operations and fleet upgrade, increasing haulage capacity by 40% and unlocking a larger high-grade ore block (83% larger) for production. Robust demand for low-grade materials, with 300,000 tonnes available and a bid of $65 per tonne, adding to cash flow resilience. Positive outlook on lithium demand driven by AI and battery storage, with expectations of a decade-long growth period. Cash flow projections indicate potential for $166 million to $1 billion in annual cash generation depending on lithium prices and production levels. Temporary suspension of mining and processing operations due to negotiations with the state of Minas Gerais, impacting Q3 production and cash flow. Uncertainty regarding the restart timeline, with best-case next week and worst-case two weeks, creating operational disruption. Delayed disclosure of the suspension, which occurred during the CEO's vacation, raising concerns about transparency and market communication. Despite strong Q2 performance, cash flow from operations was only $27 million in H1, with $60 million in receivables yet to be collected in Q3. The company faces reputational risk from false accusations by local inspectors, requiring strict negotiation terms to clear its name. Production guidance was pushed forward by three months, indicating potential delays in achieving full capacity. The company's share price has lagged the sector, though management expects a re-rating, but this has not yet materialized. Dependence on spot sales for low-grade materials, which may be less predictable than long-term offtake agreements. The expansion plan involves significant CapEx, and while the company has flexibility, it may need to manage funding carefully to avoid dilutive capital raises. The lithium market remains volatile, and the company's cash flow projections are highly sensitive to price fluctuations, with a wide range from $166 million to $1 billion. Q: What was the exact production of normal lithium concentrate and lower-grade concentrate in Q2? What is the expected cash flow or burn if the mine does not restart for the rest of Q3? What are the best and worst-case scenarios for the mine restart, and how long will it take to ramp back to full production?A: Ana Cabral Gardner (Co-Chair and CEO) stated that the entire Q2 production was high-grade material, deliberately avoiding sales of lower-grade fines to present a clean quarter. The company has approximately $60 million in cash flow to receive in Q3 from previously sold but unconverted inventory and low-grade material. For the mine restart, the best case is next week, while the worst case is about two weeks. The company is negotiating from a position of strength, insisting on being fully cleared of what they consider false accusations rather than accepting a simple settlement. Q: Regarding the offtake prepayments (BRL 96 million and BRL 50 million), how much cash has been received, and has the $50 million been used to repay debt? Also, exactly which operations have been suspended, and why wasn't the market informed immediately?A: Ana Cabral Gardner (Co-Chair and CEO) clarified that out of the BRL 96 million offtake agreement, they have received BRL 60 million to date, with additional amounts expected in Q3. The second offtake agreement for 40,000 tonnes is being increased due to exceptional ramp-up, and upon closing, 100% will be used to repay debt, which they plan to do by the end of Q3 regardless. Regarding the suspension, the company did disclose it immediately via press release. Initially, both mining and processing operations were stopped due to unclear notifications, but as negotiations progressed, they learned it was a temporary suspension. They are now in a position to restart industrial operations, hoping for a final conclusion by next week. Q: During the current production suspension, are you still able to process and ship lithium middlings? How much did you ship last quarter, and how much are you planning to ship this quarter? Have you signed any additional sales agreements for these materials?A: Ana Cabral Gardner (Co-Chair and CEO) confirmed they are absolutely still able to process and ship these materials, which is a source of resilience. The Q3 financials reflect sales of both high-grade material and low-grade high-purity products. They do not sell these on an offtake basis but on a spot basis, with a very healthy bidding process. For example, they have 300,000 tonnes of material with a current bid of $65 per tonne, demonstrating robust demand. Q: Is the new timeline for Plant 2 and Plant 3 construction more relevant to mining plan adjustment, funding considerations, or other factors?A: Ana Cabral Gardner (Co-Chair and CEO) explained that the timeline is not related to funding. The company has learned that the current plant can deliver 330,000 tonnes per year when fully fed with fresh ore, thanks to the perfected reprocessing circuit. The delay in achieving this was due to issues with the old mining contractor, which have now been resolved by insourcing the mine. The Q2 production of 35,000 tonnes demonstrates the plant's capability when fed with fresh ore at full capacity. Q: Can you provide more details on the financial highlights, specifically the record EBITDA margin and the cost reductions achieved in Q2?A: Ana Cabral Gardner (Co-Chair and CEO) highlighted that the company delivered a record 47% EBITDA margin, the highest in its history, driven by disciplined cost control and increased production volumes. Production increased by 52% over Q1, leading to record net revenues of $55 million. Costs decreased significantly, with all-in cash costs at $668 per tonne, positioning the company well into excess return territory at current lithium prices. The company also repaid 25% of its total debt over the last year, reducing total debt by 43% over two years. Q: What is the company's production capacity outlook, and how will the new pit shell design impact future production?A: Ana Cabral Gardner (Co-Chair and CEO) stated that the new pit shell design has unlocked a block of high-grade spodumene ore that is 83% larger than the old design, containing 1.1 million tonnes of fresh ore. This will enable the production of 200,000 tonnes of lithium oxide concentrate, an almost 100% increase. The ore grade is high at 1.4%, allowing the plant to operate at full capacity using both the main and reprocessing circuits. By the end of 2027, with only Plant 1, production is forecast at 330,000 tonnes per year, and with Plant 2 construction completed, installed capacity will reach 580,000 tonnes per year. Q: How does the company plan to generate substantial cash flows, and what are the projections based on different lithium price scenarios?A: Ana Cabral Gardner (Co-Chair and CEO) explained that based on current plans and using only Plant 1, cash flow projections vary according to lithium prices. At a low-end price of $1,500 per tonne, cash flows could range from $166 million (12 months forward) to $360 million (2027 production). At a higher price of $2,500 per tonne, cash flows could reach $235 million for 12 months forward and up to $1 billion once 2027 production is delivered. This is a direct result of the company's low-cost position and high margins. Q: What is the company's view on the lithium market demand, and how does it position Sigma for growth?A: Ana Cabral Gardner (Co-Chair and CEO) emphasized that the sector is experiencing unique growth driven by AI and battery storage demand. Global lithium demand is expected to grow by 900,000 tonnes of LCE in 2026, translating to approximately 7 million tonnes of lithium oxide concentrate. By 2035, global demand is expected to reach 5 million tonnes of LCE, or about 40 million tonnes of concentrate. Sigma's expected production of 100,000 tonnes per year by 2028 would supply only about 2% of global demand, highlighting the massive growth opportunity. The company believes it is well-positioned for a re-rating given its low-cost position and strong cash generation compared to peers with double the market cap. For the complete transcript of the earnings call, please refer to the full earnings call transcript.

FINANCIAL HIGHLIGHTS Sigma Lithium 2Q 26 delivers another record quarter of high profitability: Decreased costs, while upgrading mining operations, resulting from production growth to 35,400t and financial discipline Decreased total debt by 25% since 2Q 25. OPERATIONAL HIGHLIGHTS Expected near term conclusion of TAC Agreement and end of temporary suspension of operations. Production expansion remains on track, pushing forward ramp-up guidance by 3 months Plans to increase installed industrial capacity by building two additional plants: Conference Call Information The Company will hold a conference call to discuss its financial results for the second quarter of 2026 at 8:30a.m. ET on Friday, August 14, 2026. Register for the call at https://ir.sigmalithiumcorp.com/events Toronto, Ontario--(Newsfile Corp. - August 14, 2026) - Sigma Lithium Corporation (NASDAQ: SGML) (TSXV: SGML) (BVMF: S2GM34) ("Sigma Lithium" or the "Company"), the largest producer of lithium oxide concentrate in the Americas¹ and dedicated to industrializing lithium materials to supply global producers of batteries for energy security in a responsible manner, announces the Company's results for the three months ended June 30, 2026 and provides an update on recent developments. RECORD REVENUES AND EBITDA MARGINS In 2Q 26, Sigma Lithium achieved gross margin of 60%, maintaining high levels of 1Q26 (at 61%). EBITDA margin at 47% was the highest in the Company’s history, further improving on the 39% margin of 1Q 26. Revenues of US$55 million were also at a record high, up from US$42 million in 1Q 26. Sigma Lithium sold 24,400t in 2Q 26 and commercial flexibility improved the realized price by 17% to US$2,089 (SC5) from US$1,790 in 1Q 26. LOW COST POSITION REINFORCED Decreased costs across the board by over 30%, while upgrading mining operations, resulting from financial discipline. The reduction reflected a 50% growth in production volumes to 35,400t following a continuous ramp-up of operations started in January 2026, as well as gains achieved following the primarization of mining operations and upgrade in mining equipment. Plant gate costs at US$ 401/t , (-36% from 1Q 26) CIF costs at US$452/t (-33% from 1Q 26) Total Cash Costs: US$668/t (AISC - All-In Sustaining Cost) returned to levels of 3Q 25, the last quarter where the Company operated near nominal capacity. These costs have the potential to be further decreased as the operational ramp-up continues DECREASED TOTAL DEBT BY 25% WITHIN LAST YEAR In 2Q 26, Sigma Lithium continued to reduce its debt levels, with net debt cut to US$125 million from US$134 million at the end of 1Q 26. The Company remained focused on progressively repaying its higher-cost, short-term export financing facilities. Total debt at the end of 2Q 26 declined by 43% in two years. Sigma Lithium’s cash position stood at US$17 million as of June 30, 2026. During 2Q 26, Sigma Lithium continued to receive advanced payments for sales of high-grade lithium oxide concentrate from the previously announced US$96 million offtake agreement. Negotiations to secure financing for the repayment of amounts outstanding under the export prepayment agreement with Synergy, which totaled US$95 million as of June 30, 2026 (excluding $11 million cash held as collateral), are expected to enable a pre-payment. Sigma Lithium is currently evaluating a range of financing alternatives, several of which have emerged as a result of the successful mining ramp up and maintained positive sentiment about lithium markets this year. TAC AGREEMENT UNDERWAY Since the week started July 17, 2026, mining and plant operations have been temporarily paused as part of a partial suspension, pending the closing with the Minas Gerais state government of a terms for adjustment of procedures ("Termo de Ajuste de Conduta" or "TAC Agreement"). A TAC Agreement is a standardized form of agreement, that must be mutually agreed between federal and state regulatory bodies and the company. The TAC Agreement is designed to address certain issues raised by the Vale do Jequitinhonha branch of the Minas Gerais state environmental enforcement body. Once the TAC Agreement is finalized, the Company expects to resume mining activities. Sigma Lithium's expectation is that this will occur in the near term. Operations related to the sale of high-purity lithium fines, consisting of reprocessed tailings generated by previous production, have continued without disruption. As noted above, the ramp-up of mining operations following its primarization commenced in January 2026, involved the phased deployment of increasingly larger mining equipment. Once mining activities resume following the current suspension, the Company expects to continue to increase mining haulage capacity and implement the next phase of equipment upgrades. TAC AGREEMENT BACKGROUND On July 22, 2026 Sigma Lithium announced that the Company started negotiating the TAC Agreement with the Minas Gerais state government. The negotiations follow a notification by the Vale do Jequitinhonha regional branch of the Minas Gerais state environmental agency, based in the town of Diamantina, which included the issuing of fines totaling approximately US$540,000 and required a partial suspension of the Company's operations. Several fines were related to environmental issues that occurred from 2013 to 2022. Sigma Lithium vehemently denies any wrongdoing with respect to the key claims raised in connection with the Company's operations. Sigma Lithium reaffirms that the Company: a) has not misrepresented any information filed with the environmental authorities since 2018; b) has not commercially sold any lithium materials prior to May 2023; and c) denies the claims alleging that 2 houses located outside of Sigma Lithium's licensed area are negatively impacted by its activities. The Company agreed to the payment of up to US$540,000 for the above mentioned fines. In parallel to negotiating the TAC Agreement, Sigma Lithium has filed a significant amount of factual and quantitative environmental evidence supporting its defense to the claims related to its current operations with FEAM, the environmental regulator of Minas Gerais state. The Company estimates that the execution of the proposed adjustments of environmental procedures under the TAC Agreement will require an estimated capex of approximately US$1,000,000, mainly related to germination and grassing of the waste rock piles near the south mining pit. INCREASED PLANT 1 CAPACITY LOWERED REALIZED COSTS Following the successfully conclusion of a ramp up of mining operations following the primarization of 4Q 25, and considering the temporary suspension mentioned above, Sigma Lithium has moved forward by a quarter its twelve-month production guidance of 240,000 tonnes of lithium oxide concentrate. The Company is providing production guidance of 330,000 tonnes for the full year of 2027, assuming only Plant 1 is operating throughout the year. This is higher than the original Plant 1 annual nominal capacity of 270,000 tonnes, reflecting productivity improvements in the reprocessing circuit from a steady flow of spodumene being delivered to the industrial plant. This frequent cadence was a result of the successful ramp up of mining operations Sigma Lithium lowered guidance for total cash costs costs per tonne to reflect the lower AISC costs achieved in 2Q 26. Sigma Lithium remains committed to delivering strong near-term growth. Primarily to reflect the recent temporary suspension of operations, the Company has pushed forward the completion of the construction of its next industrial plant to the end of 2027. The Company also expects that it will be able to initiate construction of a third industrial plant next year, completing it by the end of 2028. Plants 2 and 3 will add another 250,000 tonnes of annual capacity each, taking total capacity to 830,000 tonnes per year. Table 1: Sigma Lithium Production and Cash Flow Estimates ABOUT SIGMA LITHIUM Sigma Lithium Corporation (NASDAQ: SGML) (TSXV: SGML) (BVMF: S2GM34), ("Sigma Lithium" or "the Company") is the largest producer of lithium oxide concentrate in the Americas¹ and dedicated to industrializing socially and environmentally sustainable lithium materials to supply global producers of batteries for energy security. The Company runs one of the world's largest lithium production sites—the fifth-largest industrial-mineral complex for lithium oxide concentrate—at its Grota do Cirilo operation in Brazil. Sigma Lithium is at the forefront of environmental and social sustainability in the electric battery materials supply chain. The Company's Cleantech Industrial Plant combines the reuse of 100% of water, zero use of toxic chemicals, zero tailings and the use of 100% renewable electricity. For more than two years Sigma Lithium has not experienced an accident with lost time. Sigma Lithium currently has a nameplate capacity to produce 330,000 tonnes of lithium oxide concentrate on an annualized basis at its mine and state-of-the-art Cleantech Industrial Plant. The Company has initiated a Phase 2 expansion designed to close to double annual production capacity to 580,000 tonnes and plans a Phase 3 expansion to increase this further to 830,000 tonnes. For more information about Sigma Lithium, visit our website. (1) USGS. FOR ADDITIONAL INFORMATION PLEASE CONTACT Anna Hartley, Vice President of Global Banking and Investor [email protected]+44 7866 458 093 Mariana Bengtson, Investor Relations [email protected]+55 11 9 2144 2750 Sigma LithiumLinkedIn: Sigma LithiumInstagram: @sigmalithiumX: @SigmaLithium FORWARD-LOOKING STATEMENTS This news release includes certain "forward-looking information" under applicable Canadian and U.S. securities legislation, including but not limited to statements relating to timing and costs related to the general business and operational outlook of the Company, the environmental footprint of tailings and positive ecosystem impact relating thereto, donation and upcycling of tailings, timing and quantities relating to tailings and Green Lithium, achievements and projections relating to the Zero Tailings strategy, achievement of ramp-up volumes, production estimates and the operational status of the Grota do Cirilo Project, and other forward-looking information. All statements that address future plans, activities, events, estimates, expectations, or developments that the Company believes, expects, or anticipates will or may occur is forward-looking information, including statements regarding the potential development of mineral resources and mineral reserves which may or may not occur. Forward-looking information contained herein is based on certain assumptions regarding, among other things: general economic and political conditions; the stable and supportive legislative, regulatory and community environment in Brazil; demand for lithium, including that such demand is supported by growth in the electric vehicle market; the Company's market position and future financial and operating performance; the Company's estimates of mineral resources and mineral reserves, including whether mineral resources will ever be developed into mineral reserves; and the Company's ability to operate its mineral projects including that the Company will not experience any materials or equipment shortages, any labor or service provider outages or delays or any technical issues. Although management believes that the assumptions and expectations reflected in the forward-looking information are reasonable, there can be no assurance that these assumptions and expectations will prove to be correct. Forward-looking information inherently involves and is subject to risks and uncertainties, including but not limited to that the market prices for lithium may not remain at current levels; and the market for electric vehicles and other large format batteries currently has limited market share and no assurances can be given for the rate at which this market will develop, if at all, which could affect the success of the Company and its ability to develop lithium operations. There can be no assurance that such statements will prove to be accurate, as actual results and future events could differ materially from those anticipated in such statements. Accordingly, readers should not place undue reliance on forward-looking information. The Company disclaims any intention or obligation to update or revise any forward-looking information, whether because of new information, future events or otherwise, except as required by law. For more information on the risks, uncertainties and assumptions that could cause our actual results to differ from current expectations, please refer to the current annual information form of the Company and other public filings available under the Company's profile at www.sedarplus.ca. Neither the TSX Venture Exchange nor its Regulation Services Provider (as that term is defined in the policies of the TSX Venture Exchange) accepts responsibility for the adequacy or accuracy of this news release. To view the source version of this press release, please visit https://www.newsfilecorp.com/release/309640

Sigma Lithium (SGML) stock is in focus ahead of the miner’s fiscal second-quarter earnings scheduled to be released before the market opens on Aug. 14. Consensus is for the pure-play lithium producer to record $0.15 in earnings per share (EPS), which would represent a remarkable 188% increase on a year-over-year basis. A $20 Billion Reason Why Intel Stock Is in Focus Mark Cuban Says If You Win The Lottery, Don’t Take The Lump Sum — And Tell People Who Ask for Money No, But ‘Be Nice. No One Likes a Mean Billionaire’ Ahead of Applied Materials Earnings, Here's What Barchart Data Says Comes Next for AMAT Stock Stop Missing Market Moves: Get the FREE Barchart Brief – your midday dose of stock movers, trending sectors, and actionable trade ideas, delivered right to your inbox. Sign Up Now! Heading into the quarterly release, Sigma Lithium shares are down a concerning 50% versus their year-to-date high in early May. For those who haven’t thrown in the towel on SGML shares due to their massive underperformance in 2026, the good news is that the options traders are betting on some recovery in the near term. According to Barchart, the put-to-call ratio on contracts expiring Aug. 14 sits at 0.19x currently, indicating a very strong bullish skew ahead of the company’s Q2 results. In fact, the upper price on those options contracts is set at $12.47 as of writing, signaling potential for just under a 10% surge after the quarterly release. That said, Barchart disagrees with the options market optimism, as evidenced by the average “64% SELL” opinion on Sigma Lithium, which suggests technical momentum isn’t in its favor heading into the earnings event. Despite bullish options pricing, investors should note that Sigma Lithium stock is currently more expensive to own than its key public rivals. At the time of writing, it’s trading at a price-to-sales (P/S) ratio of more than 12x versus less than 3x for Charlotte-headquartered rival Albemarle (ALB). On the flip side, however, insiders have aggressively loaded up on SGML in the trailing 12 months, recording a total of 60 buy transactions against only 14 sells. This suggests strong insider conviction in Sigma Lithium’s long-term growth prospects despite its premium valuation relative to industry peers. It's also worth mentioning that Wall Street firms remain bullish on Sigma Lithium for the remainder of 2026. The consensus rating on SGML stock sits at “Moderate Buy,” with the mean price target of nearly $22 indicating potential upside of more than 45% from here. On the date of publication, Wajeeh Khan did not have (either directly or indirectly) positions in any of the securities mentioned in this article. All information and data in this article is solely for informational purposes. This article was originally published on Barchart.com

Toronto, Ontario--(Newsfile Corp. - August 5, 2026) - Sigma Lithium Corporation (NASDAQ: SGML) (TSXV: SGML) (BVMF: S2GM34) ("Sigma Lithium" or the "Company"), the largest producer of lithium oxide concentrate in the Americas¹ and dedicated to industrializing socially and environmentally sustainable lithium materials to supply global producers of batteries for energy security, announces today that it will release its second quarter 2026 earnings results before the market opens on Friday, August 14, 2026. As announced on July 9, 2026, Sigma Lithium exceeded by 6% its production guidance for the second quarter of 2026, delivering 35,000 tonnes of high grade lithium concentrate. Production for the first half of 2026 at 58,000 tonnes of lithium concentrate products was above target. This performance was a result of the successful execution by Sigma Lithium of a comprehensive mining upgrade, following the primarization of its mining operations. CONFERENCE CALL The Company will hold a conference call to discuss its second quarter 2026 earnings results shortly after, on Friday, August 14, 2026, at 8:30 a.m. EST. Access to the call will be available via webcast. A link to the webcast can be found on Sigma Lithium's website at: https://ir.sigmalithiumcorp.com/events/ Webcast Details: Event Title: Sigma Lithium Second Quarter 2026 Earnings Results Call Event Date: August 14, 2026 Start Time: 8:30 a.m. EST Attendee URL: https://mzgroup.zoom.us/webinar/register/WN_vV2Ee2TESDW6fjgnfkqQFQ#/registration ABOUT SIGMA LITHIUM Sigma Lithium Corporation (NASDAQ: SGML) (TSXV: SGML) (BVMF: S2GM34), ("Sigma Lithium" or "the Company") is the largest producer of lithium oxide concentrate in the Americas¹ and dedicated to industrializing socially and environmentally sustainable lithium materials to supply global producers of batteries for energy security. The Company runs one of the world's largest lithium production sites-the fifth-largest industrial-mineral complex for lithium oxide concentrate-at its Grota do Cirilo operation in Brazil. Sigma Lithium is at the forefront of environmental and social sustainability in the electric battery materials supply chain. The Company's Cleantech Industrial Plant combines the reuse of 100% of water, zero use of toxic chemicals, zero tailings and the use of 100% renewable electricity. For more than two years Sigma Lithium has not experienced an accident with lost time. Sigma Lithium currently has a nameplate capacity to produce 270,000 tonnes of lithium oxide concentrate on an annualized basis (approximately 38,000-40,000 tonnes of LCE) at its mine and state-of-the-art Cleantech Industrial Plant. The Company has initiated a Phase 2 expansion designed to close to double annual production capacity to 520,000 tonnes and plans a Phase 3 expansion to increase this further to 770,000 tonnes. For more information about Sigma Lithium, visit our website. (1) USGS. FOR ADDITIONAL INFORMATION PLEASE CONTACT Anna Hartley, Vice President of Global Banking and Investor [email protected]+44 7866 458 093 Mariana Bengtson, Investor Relations [email protected]+55 11 9 2144 2750 Sigma Lithium LinkedIn: Sigma LithiumInstagram: @sigmalithiumX: @SigmaLithium FORWARD-LOOKING STATEMENTS This news release includes certain "forward-looking information" under applicable Canadian and U.S. securities legislation, including but not limited to statements relating to timing and costs related to the general business and operational outlook of the Company, the environmental footprint of tailings and positive ecosystem impact relating thereto, donation and upcycling of tailings, timing and quantities relating to tailings and Green Lithium, achievements and projections relating to the Zero Tailings strategy, achievement of ramp-up volumes, production estimates and the operational status of the Grota do Cirilo Project, and other forward-looking information. All statements that address future plans, activities, events, estimates, expectations, or developments that the Company believes, expects, or anticipates will or may occur is forward-looking information, including statements regarding the potential development of mineral resources and mineral reserves which may or may not occur. Forward-looking information contained herein is based on certain assumptions regarding, among other things: general economic and political conditions; the stable and supportive legislative, regulatory and community environment in Brazil; demand for lithium, including that such demand is supported by growth in the electric vehicle market; the Company's market position and future financial and operating performance; the Company's estimates of mineral resources and mineral reserves, including whether mineral resources will ever be developed into mineral reserves; and the Company's ability to operate its mineral projects including that the Company will not experience any materials or equipment shortages, any labor or service provider outages or delays or any technical issues. Although management believes that the assumptions and expectations reflected in the forward-looking information are reasonable, there can be no assurance that these assumptions and expectations will prove to be correct. Forward-looking information inherently involves and is subject to risks and uncertainties, including but not limited to that the market prices for lithium may not remain at current levels; and the market for electric vehicles and other large format batteries currently has limited market share and no assurances can be given for the rate at which this market will develop, if at all, which could affect the success of the Company and its ability to develop lithium operations. There can be no assurance that such statements will prove to be accurate, as actual results and future events could differ materially from those anticipated in such statements. Accordingly, readers should not place undue reliance on forward-looking information. The Company disclaims any intention or obligation to update or revise any forward-looking information, whether because of new information, future events or otherwise, except as required by law. For more information on the risks, uncertainties and assumptions that could cause our actual results to differ from current expectations, please refer to the current annual information form of the Company and other public filings available under the Company's profile at www.sedarplus.ca. Neither the TSX Venture Exchange nor its Regulation Services Provider (as that term is defined in the policies of the TSX Venture Exchange) accepts responsibility for the adequacy or accuracy of this news release. To view the source version of this press release, please visit https://www.newsfilecorp.com/release/308117

São Paulo, Brazil--(Newsfile Corp. - May 18, 2026) - Sigma Lithium Corporation (NASDAQ: SGML) (TSXV: SGML) (BVMF: S2GM34) ("Sigma Lithium" or the "Company"), the largest producer of lithium oxide concentrate in the Americas¹ and dedicated to industrializing socially and environmentally sustainable lithium materials to supply global producers of batteries for energy security, announces that the Company is filing a legal appeal against a decision issued on Sunday, May 17, by a local judge from a local court in Aracuai, Vale do Jequitinhonha. The local decision included the potential for a legal collateral of US$10 million for the local court. The Company emphasizes this amount would be due only in the event the charges result in a final negative ruling, after the full due legal process is completed in Brazil, including the rights to appeal in the appropriate state and federal courts, including the Supreme Tribunal of Justice (STJ) and Supreme Court of Brazil. The other elements in the ruling are also not expected to be enforced until the completion of due legal process. Legal jurisprudence for similar cases indicates a timeline of multiple years until this happens. As such, no payments are due or required. Sigma Lithium believes the decision is unwarranted and in dissonance with Brazil's strong rule of law: due process was not followed. A significant amount of legal evidence was filed by the Company with the court. The surprising ruling followed a visit by legal authorities to Sigma Lithium's operations, where the Company's conformity with all Brazilian environmental rules was verified, including: Absence of tailing dams and 100% dry stacking of tailings. 100% reuse of water by the Greentech Processing Plant, for which the verification included a visit to the Company's inbound sewage treatment plant that removes fecal residues from the water utilized. Bio-regeneration of the Company's rock piles, visually evidenced by growing vegetation. Low levels of noise (even at the mine pit). Low levels of dust, resulting from water trucks running full time at the mining operations conducting site wetting of mining pits and piles. PUBLIC HEARING The visit by the legal authorities occurred on the same day of a public hearing held for the local community, where more than 200 people from Sigma Lithium's neighboring communities attended to demonstrate their support for the approximately 19,000 jobs generated by the Company in the region, ushering in significant shared prosperity in Vale do Jequitinhonha. The overwhelming community support for Sigma Lithium had already been demonstrated in a previous public hearing for the issuance of the Company's environmental license, when over 2,000 people attended and 91% of the depositions heard were favorable to Sigma Lithium's operations and expansion plans. ANOTHER "FAKE NEWS" CAMPAIGN COINCIDES WITH RECORD EARNINGS Prior even to the official issuance of the legal decision yet another negative online "fake news" media campaign was launched against the Company, disseminating false, inaccurate, and misleading information, including videos and photos from the operations of other companies claiming to show Sigma Lithium's operations. More importantly, the campaign was launched on a Sunday prior to the official issuance of the legal decision and just after Sigma Lithium posted record earnings on Friday (for 1Q26). The timing of this negative "fake news" media campaign against the Company, just after a positive announcement or event and leading to substantial stock volatility (the share price fell by 15% today), fits a pattern first reported by the Company on January 23rd, 2026. Sigma Lithium remains in close contact with the appropriate authorities regarding the issue, including FINRA (US Securities and Exchange Commission). ABOUT SIGMA LITHIUM Sigma Lithium Corporation (NASDAQ: SGML) (TSXV: SGML) (BVMF: S2GM34) ("Sigma Lithium" or "the Company") is the largest producer of lithium oxide concentrate in the Americas¹ and dedicated to industrializing socially and environmentally sustainable lithium materials to supply global producers of batteries for energy security. The Company runs one of the world's largest lithium production sites-the fifth-largest industrial-mineral complex for lithium oxide concentrate-at its Grota do Cirilo operation in Brazil. Sigma Lithium is at the forefront of environmental and social sustainability in the electric battery materials supply chain. The Company's Greentech Industrial Plant combines the reuse of 100% of water, zero use of toxic chemicals, zero tailings and the use of 100% renewable electricity. For more than two years Sigma Lithium has not experienced an accident with lost time. Sigma Lithium currently has a nameplate capacity to produce 270,000 tonnes of lithium oxide concentrate on an annualized basis (approximately 38,000-40,000 tonnes of LCE) at its mine and state-of-the-art Greentech Industrial Plant. The Company has initiated a Phase 2 expansion designed to close to double production capacity to 520,000 tonnes. For more information about Sigma Lithium, visit our website. (1) USGS. FOR ADDITIONAL INFORMATION, PLEASE CONTACT Anna Hartley, Vice President of Global Banking and Investor [email protected] +44 7866 458 093 Mariana Bengtson, Investor Relations [email protected]+55 11 9 2144 2750 Sigma Lithium LinkedInInstagramX FORWARD-LOOKING STATEMENTS This news release includes certain "forward-looking information" under applicable Canadian and U.S. securities legislation, including but not limited to statements relating to timing and costs related to the general business and operational outlook of the Company, the environmental footprint of tailings and positive ecosystem impact relating thereto, donation and upcycling of tailings, timing and quantities relating to tailings and Green Lithium, achievements and projections relating to the Zero Tailings strategy, achievement of ramp-up volumes, production estimates and the operational status of the Grota do Cirilo Project, and other forward-looking information. All statements that address future plans, activities, events, estimates, expectations, or developments that the Company believes, expects, or anticipates will or may occur is forward-looking information, including statements regarding the potential development of mineral resources and mineral reserves which may or may not occur. Forward-looking information contained herein is based on certain assumptions regarding, among other things: general economic and political conditions; the stable and supportive legislative, regulatory and community environment in Brazil; demand for lithium, including that such demand is supported by growth in the electric vehicle market; the Company's market position and future financial and operating performance; the Company's estimates of mineral resources and mineral reserves, including whether mineral resources will ever be developed into mineral reserves; and the Company's ability to operate its mineral projects including that the Company will not experience any materials or equipment shortages, any labor or service provider outages or delays or any technical issues. Although management believes that the assumptions and expectations reflected in the forward-looking information are reasonable, there can be no assurance that these assumptions and expectations will prove to be correct. Forward-looking information inherently involves and is subject to risks and uncertainties, including but not limited to that the market prices for lithium may not remain at current levels; and the market for electric vehicles and other large format batteries currently has limited market share and no assurances can be given for the rate at which this market will develop, if at all, which could affect the success of the Company and its ability to develop lithium operations. There can be no assurance that such statements will prove to be accurate, as actual results and future events could differ materially from those anticipated in such statements. Accordingly, readers should not place undue reliance on forward-looking information. The Company disclaims any intention or obligation to update or revise any forward-looking information, whether because of new information, future events or otherwise, except as required by law. For more information on the risks, uncertainties and assumptions that could cause our actual results to differ from current expectations, please refer to the current annual information form of the Company and other public filings available under the Company's profile at www.sedarplus.ca. Neither the TSX Venture Exchange nor its Regulation Services Provider (as that term is defined in the policies of the TSX Venture Exchange) accepts responsibility for the adequacy or accuracy of this news release. To view the source version of this press release, please visit https://www.newsfilecorp.com/release/297856

This article first appeared on GuruFocus. Gross Margin: 61% for Q1 2026, the highest in company history. EBITDA Margin: 39% for Q1 2026, unadjusted. Operating Margin: 33% for Q1 2026. Net Profit Margin: 26% for Q1 2026. Revenue Growth: Up 48% quarter-on-quarter compared to Q3 2025; up 150% compared to the previous quarter. Cash Position: $28 million as of May 15, 2026. Total Debt Reduction: 33% over two years; 21% over the last year. Short-term Debt Reduction: 75% reduction in short-term bank trade debt over the last year. Production Guidance: On track to deliver 240,000 tons of lithium oxide within the next 12 months; 200,000 tons for 2026. Offtake Agreements: $96 million prepayment for 70,500 tons; $50 million conventional offtake with prepayment. Future Production Capacity: Expected to double with Plant 2 and triple with Plant 3. Warning! GuruFocus has detected 6 Warning Signs with SGML. Is SGML fairly valued? Test your thesis with our free DCF calculator. Release Date: May 15, 2026 For the complete transcript of the earnings call, please refer to the full earnings call transcript. Sigma Lithium Corp (NASDAQ:SGML) achieved its most profitable quarter since production started, with 61% gross margins and 26% net profit margins. The company has significantly decreased its total debt by 33% over two years, enhancing its financial resilience. Sigma Lithium Corp (NASDAQ:SGML) has reached 1,010 days with zero accidents, showcasing its strong safety record. The company is on track to deliver 240,000 tons of lithium oxide within the next 12 months, positioning it for significant growth. Sigma Lithium Corp (NASDAQ:SGML) uses 100% renewable electricity and recycles all water, emphasizing its commitment to sustainability. The company has not yet secured funding for Plant 3, which is necessary for further expansion. Sigma Lithium Corp (NASDAQ:SGML) faces potential challenges in maintaining its high production targets amidst market fluctuations. The company has a significant inventory of 300,000 tons of lithium oxide intermediate products, which may impact cash flow if not sold timely. There is uncertainty regarding the future pricing of lithium oxide, which could affect profitability. Sigma Lithium Corp (NASDAQ:SGML) has not implemented floor price mechanisms in its offtake agreements, which could expose it to price volatility. Q: It seems you expect production to be 13KT in June, then 24KT in July. How do you get such a large jump in production month-over-month? A: We haven't given monthly guidance, but we've significantly increased the haulage capacity of the fleet. We commenced mobilization in February and continued with it, increasing the number of shifts. We moved from one shift to two shifts, and then to four shifts, including night shifts, after personnel received detailed protocols for night operations. Q: Regarding Phase 2 and 3 expansion, may we have more color on a detailed timeline for Phase 2 and Phase 3 construction commissioning ramp-up period? A: We plan to resume Phase 2 in the second half of the year. We need to order and receive equipment, which could take up to 12 months, making Phase 2 fully operational by mid-next year. Phase 3 could happen in parallel or sequentially, depending on funding, which we are confident about securing. Q: Back on slide 16 and providing 200 KT production guidance for the year, are we wrong in assuming you expect Q3 at 72 KT? A: You're not wrong. We try to be conservative, but that could happen. We've done it before, and we anchor our forecast into very achievable numbers. Q: Many Australian lithium producers have recently signed offtake agreements that include floor price mechanisms. Could management comment on whether future contracts may also include floor price provisions? A: We don't focus on floor prices due to our low production costs. Our strategy is to commit as little production as possible to maximize prepayments from customers. We have robust interest from clients, and our agreements are not derivative agreements but rather prepayments for securing product availability. Q: Sigma currently has approximately 300,000 tons of lithium oxide intermediate products inventory. Could management provide an update on the current commercialization and sales progress of this material? A: We have 300,000 tons of lithium oxide low-grade products available, commanding a price of about $77 to $80 ex works at the plant. We price these products off DSO as per Shanghai Metals Market. We are in a wait-and-see strategy to decide what to do with these products, and we expect to commence deliveries in the third quarter. For the complete transcript of the earnings call, please refer to the full earnings call transcript.

HIGHLIGHTS Sigma Lithium achieved the highest profitability in its history: 61% gross margin. 39% EBITDA margin. 26% net margin. Generated US$42M in revenues from the sale of 23,000t of lithium oxide concentrate equivalent: Realized price of $1,790 (SC5). Significantly deleveraged, decreasing total debt: By 21% over the last year By 33% over the last 2 years. Cash position of US$28M as of May 15, 2026, the highest since year end 2024. On track to achieve 240,000t of annualized production, with the successful completion of mining operations ramp-up following a successful restructuring: Fleet upgrade, capacity increase and modernization. Conference Call Information The Company will hold a conference call to discuss its financial results for the first quarter of 2026 at 8:30a.m. ET on Friday, May 15, 2026. Register for the call at https://ir.sigmalithiumcorp.com/events São Paulo, Brazil--(Newsfile Corp. - May 15, 2026) - Sigma Lithium Corporation (NASDAQ: SGML) (TSXV: SGML) (BVMF: S2GM34) ("Sigma Lithium" or the "Company"), the largest producer of lithium oxide concentrate in the Americas¹ and dedicated to industrializing socially and environmentally sustainable lithium materials to supply global producers of batteries for energy security, announces the Company's results for the three months ended March 31, 2026 and provides an update on recent developments. POSTED RECORD MARGINS In 1Q26, Sigma Lithium achieved the highest profitability in the Company's history, posting record margins, with gross margin of 61%, EBITDA margin of 39% and net margin of 26%. The Company delivered solid sales volumes, maintained its low cost position and benefited from higher lithium prices. Sales volume in 1Q26 was 23,000 tonnes of both low grade and high grade lithium oxide concentrate, calculated on an equivalent basis for 5% Li2O content. The realized price for high-grade lithium oxide in 1Q26 was US$1,790 per tonne SC5 (US$2,150 SC6), which compares with 3Q25, the last quarter before the Company's restructuring of mining operations, with US$630 per tonne SC5 (US$756 SC6). STRONG REVENUE GENERATION In 1Q26, Sigma Lithium generated solid revenues of US$42 million, up 150% from 4Q25, when sales were impacted by the above mentioned mining restructuring, and represent the highest quarterly revenues achieved by the Company since 1Q25 (US$48 million). Revenue generation in 1Q26 was achieved almost exclusively through the sales of lithium oxide concentrate of different grades, with only a small about of shipping service revenues. This compares with 4Q25, when revenue was made up primarily of positive adjustments on provisionally priced sales and a substantial amount in shipping service revenue. CONTINUED TO DELEVERAGE In 1Q26, Sigma Lithium continued to reduce debt. Total debt at the end of 1Q26 stood at US$134 million, having declined by 21% in one year and by 33% in two years. The reduction was achieved despite lithium market volatility and via a strategy of progressively paying down higher cost short term export financing lines, which fell from a two-year high at the end of 2Q24 at US$102 million to US$13 million at the end of 1Q26. SIGNIFICANT INCREASE IN CASH POSITION Today, May 15, 2026, Sigma Lithium's position in cash and equivalents is US$28 million, which is the largest amount the Company has recorded since year end 2024. Sigma Lithium ended 1Q26 with US$4 million in cash and equivalents, but the strong sales in the quarter resulted in an accounts receivable balance of US$22 million, which has since been mostly translated into the Company's cash balances. The Company also continued to receive advanced payments for sales of high-grade lithium oxide concentrate, including from the previously announced US$96 million working capital offtake agreement, as well as from the sales of high purity low grade materials. ON TRACK TO DELIVER PRODUCTION OF 240,000t Sigma Lithium successfully concluded a full ramp up of mining operations following the restructuring started in October 2025 and is on track to achieve the production guidance provided at the end of 1Q26 of an annualized 240,000 tonnes per year of high-grade lithium oxide concentrate. Sigma Lithium remains committed to deliver high near-term growth and now expects the next two phases of the Company's development to be concluded by year end 2027. These are the expansions Phase 2, designed to take nominal annual capacity from the current 270,000 tonnes of high-grade lithium oxide concentrate to 520,000 tonnes, and Phase 3, designed to lift annual capacity further to 770,000 tonnes. Sigma Lithium adjusted the guidance previously provided for costs per tonne to reflect higher diesel prices and an appreciation of the Brazilian Real against the U.S. Dollar, which are shown in the table below. The forecasts do not incorporate savings from higher efficiency in mine operations following the recent restructuring, but the Company continues to expect these to be achieved over time. ABOUT SIGMA LITHIUM Sigma Lithium Corporation (NASDAQ: SGML) (TSXV: SGML) (BVMF: S2GM34), ("Sigma Lithium" or "the Company") is the largest producer of lithium oxide concentrate in the Americas¹ and dedicated to industrializing socially and environmentally sustainable lithium materials to supply global producers of batteries for energy security. The Company runs one of the world's largest lithium production sites—the fifth-largest industrial-mineral complex for lithium oxide concentrate—at its Grota do Cirilo operation in Brazil. Sigma Lithium is at the forefront of environmental and social sustainability in the electric battery materials supply chain. The Company's Greentech Industrial Plant combines the reuse of 100% of water, zero use of toxic chemicals, zero tailings and the use of 100% renewable electricity. For more than two years Sigma Lithium has not experienced an accident with lost time. Sigma Lithium currently has a nameplate capacity to produce 270,000 tonnes of lithium oxide concentrate on an annualized basis (approximately 38,000-40,000 tonnes of LCE) at its mine and state-of-the-art Greentech Industrial Plant. The Company has initiated a Phase 2 expansion designed to close to double production capacity to 520,000 tonnes. For more information about Sigma Lithium, visit our website. (1) USGS. FOR ADDITIONAL INFORMATION PLEASE CONTACT Anna Hartley, Vice President of Global Banking and Investor Relations [email protected] +44 7866 458 093 Mariana Bengtson, Investor Relations Manager [email protected] +55 11 9 2144 2750 Sigma Lithium LinkedIn: Sigma Lithium Instagram: @sigmalithium X: @SigmaLithium FORWARD-LOOKING STATEMENTS This news release includes certain "forward-looking information" under applicable Canadian and U.S. securities legislation, including but not limited to statements relating to timing and costs related to the general business and operational outlook of the Company, the environmental footprint of tailings and positive ecosystem impact relating thereto, donation and upcycling of tailings, timing and quantities relating to tailings and Green Lithium, achievements and projections relating to the Zero Tailings strategy, achievement of ramp-up volumes, production estimates and the operational status of the Grota do Cirilo Project, and other forward-looking information. All statements that address future plans, activities, events, estimates, expectations, or developments that the Company believes, expects, or anticipates will or may occur is forward-looking information, including statements regarding the potential development of mineral resources and mineral reserves which may or may not occur. Forward-looking information contained herein is based on certain assumptions regarding, among other things: general economic and political conditions; the stable and supportive legislative, regulatory and community environment in Brazil; demand for lithium, including that such demand is supported by growth in the electric vehicle market; the Company's market position and future financial and operating performance; the Company's estimates of mineral resources and mineral reserves, including whether mineral resources will ever be developed into mineral reserves; and the Company's ability to operate its mineral projects including that the Company will not experience any materials or equipment shortages, any labor or service provider outages or delays or any technical issues. Although management believes that the assumptions and expectations reflected in the forward-looking information are reasonable, there can be no assurance that these assumptions and expectations will prove to be correct. Forward-looking information inherently involves and is subject to risks and uncertainties, including but not limited to that the market prices for lithium may not remain at current levels; and the market for electric vehicles and other large format batteries currently has limited market share and no assurances can be given for the rate at which this market will develop, if at all, which could affect the success of the Company and its ability to develop lithium operations. There can be no assurance that such statements will prove to be accurate, as actual results and future events could differ materially from those anticipated in such statements. Accordingly, readers should not place undue reliance on forward-looking information. The Company disclaims any intention or obligation to update or revise any forward-looking information, whether because of new information, future events or otherwise, except as required by law. For more information on the risks, uncertainties and assumptions that could cause our actual results to differ from current expectations, please refer to the current annual information form of the Company and other public filings available under the Company's profile at www.sedarplus.ca. Neither the TSX Venture Exchange nor its Regulation Services Provider (as that term is defined in the policies of the TSX Venture Exchange) accepts responsibility for the adequacy or accuracy of this news release. To view the source version of this press release, please visit https://www.newsfilecorp.com/release/297619