Good day, and welcome to the Solid Power 4th Quarter 2025 Earnings Conference Call. All participants will be in listen-only mode. Should you need assistance, please signal a conference specialist by pressing the star key followed by zero. After today's presentation, there will be an opportunity to ask questions. To ask a question, you may press star then 1 on a touch-tone phone. To withdraw the question, please press star then 2. Please note this event is being recorded. I would now like to turn the conference over to Charlie Van Goetz, Investor Relations Analyst. Please go ahead.

Thank you, Operator. Welcome, everyone, and thank you for joining us today. I'm joined on today's call by Solid Powers President and Chief Executive Officer, John Van Scoter, and Chief Financial Officer, Linda Heller. A copy of today's earnings release is available on the Investor Relations section of Solid Power's website, www.solidpowerbattery.com. I'd like to remind you that parts of our discussion today will include forward-looking statements as defined by U.S. securities laws. These forward- looking statements are based on management's current expectations and assumptions about future events and are based on currently available information as to the outcome and timing of future events. Except as otherwise required by applicable law, Solid Power disclaims any duty to update any forward-looking statements to reflect future events or circumstances. For a discussion of the risks and uncertainties that could cause actual results to differ materially from those expressed in today's forward-looking statements, please see SolidPower's most recent filings with the Securities and Exchange Commission, which can be found on the company's website at www.solidpowerbattery.com.

With that, let me turn it over to John Banskoder. Thank you, Charlie, and thank you all for joining us today. We made strong and meaningful progress in 2025, marking an important year of execution for solid power. At the outset of the year, we set clear near-term objectives. Continued innovation and performance in our electrolyte technology. Advance our electrolyte development roadmap. roadmap, ramp sampling activity while identifying and engaging long-term customers, execute against our agreements with SKON, and maintain a disciplined approach to capital and spending. I'm proud of our progress our team delivered across each of these priorities. Throughout the year, we translated strategy into tangible milestones and strengthened our technical foundation. Collectively, our achievements in 2025 advanced our path towards commercialization and positioned us to enter the next phase of virtualized sampling. We continued our sampling efforts and saw demand for multiple generations of our material from both existing and new customers. In October 2025, we announced a joint evaluation agreement with Samsung SDI and BMW to advance the development of all solid-state batteries. We view this agreement as validation of our electrolyte sampling efforts. After announcing the agreement, we began executing under the agreement and providing electrolyte to SDI for use in the joint evaluation activities. Turning to our electrolyte development roadmap, we made progress towards installation of our continuous electrolyte production pilot line. In 2025, we finished ordering long-lead equipment and conducted detailed design for the line. We expect to install and commission this line by the end of 2026. This line is designed to support small-volume customer programs and allow us to learn and optimize the manufacturing processes With respect to SK-ON, we continue to execute under our agreements a research and development license, a line installation agreement, and an electrolyte supply agreement. These agreements are designed to enable SK-ON to develop solid-state cells based on our technology and to operate a pilot cell manufacturing line using our electrolyte. In 2025, we completed factory acceptance testing and neared completion of site acceptance testing at SK Onn's facility. This progress demonstrates our ability to deliver against key technical milestones and support our partners, ASSB, at innovation and performance. During 2025, we deepened our understanding of our electrolyte performance, identified process engineering and electrolyte improvements, and worked to tailor our electrolyte to meet customer specifications. We made this progress through our focus on enhancing feedback between our cell and electrolyte teams and productive customer feedback. Additionally, our cells and solid-state battery technology were demonstrated in a BMW i7 test vehicle in May 2025. BMW's introduction of this test vehicle marked a meaningful achievement in our partnership, and we're proud of our role in this accomplishment. With that, I'll turn it over to Linda to review our financial results and provide an update on our financial discipline goal.

Linda. Thank you, John. We delivered revenue of $21.7 million in 2025, an increase of $1.6 million compared to 2024. The year-over-year growth was driven primarily by work performed under our line installation agreement with SKON, reflecting continued execution against our customer programs. Operating expenses for the year were $122.6 million, compared to $125.5 million in 2024. The year-over-year decrease reflects our cost discipline, partially offset by investments in research and development, as well as equipment purchases and services performed in support of the SKON agreements. Operating loss for 2025 was $100.8 million, and net loss was $93.4 million, or 51 cents per share. Turning to capital expenditures, 2025 CapEx totaled $10.2 million, primarily representing costs associated with planned construction of our continuous electrolyte production pilot line. Cash investment, which is comprised of cash used in operations and capital expenditures, totaled $84.5 million for fiscal year 2025. This came in at the lower end of our revised cash investment guidance, reflecting our continued focus on prioritization and disciplined capital allocation. Moving to the balance sheet, our total liquidity as of December 31, 2025 was $336.5 million. million, an increase of $9 million compared to year-end 2024. As of December 31, 2025, contract assets and accounts receivable were $9.6 million, and total current liabilities was $16.8 million. During the fourth quarter, we raised $56 million of net proceeds under our at-the-market, or ATM, program, bringing total 2025 net proceeds from the ATM to $88.8 million. Looking ahead, we expect 2026 cash investment, representing cash used in operations and capital expenditures, to be in the range of $85 million to $100 million. This outlook reflects our continued focus on investing and advancing our electrolyte development roadmap, including commissioning our continuous pilot line while maintaining financial discipline and preserving

liquidity. I will now turn the call back to John. Thank you, Linda. As we look ahead to 2026, we remain focused on discipline execution, continued advancement of our electrolyte technology, and maintaining a strong financial position as we work towards commercialization. First, we intend to strengthen relationships with our partners through continued execution. In 2026, we expect to continue providing Samsung SDI with electrolyte under the joint evaluation agreement, while also continuing to develop our technology and pursuing electrolyte innovation. We also expect to complete site acceptance testing of the SKON line in the first quarter of 2026. Following site acceptance testing, we plan to work with SKON to conduct validation activities for the line and begin delivering electrolyte to SKON to support the validation efforts. We will continue executing on our electrolyte development roadmap. we expect to commission our continuous electrolyte production line by the end of 2026 which we designed to expand our annual electrolyte production capacity to up to 75 metric tons. This year we also intend to pursue a potential partnership for commercial scale electrolyte production in Korea. To complement our technical expertise we plan to evaluate potential partners with process capabilities and capital to support construction of a facility capable of producing up to 500 metric tons of electrolyte annually. Third, we are focused on advancing our electrolyte product competitiveness. During 2026, we will continue to enhance our understanding of how our electrolyte performs relative to other sulfide electrolyte products. We believe this will support our efforts to develop competitive, differentiated products, and secure long-term customers. To support these efforts, we will utilize our Electrolyte Innovation Center, or EIC, to develop, improve, and test electrolyte manufacturing processes, as well as electrolyte products. We also intend to continue focusing on our cell research and development activities on improving our understanding of how and why our electrolyte performs in a solid-state cell and using that knowledge to help our electrolyte customers improve their cell development. Finally, we expect to remain fiscally disciplined. We believe maintaining and using our strong balance sheet to best position solid power to reach commercialization is critical for our success. During 2026, we intend to balance extending our runway through financial discipline with investing appropriately in technology development and process improvements. In support of this objective, we successfully completed a $130 million registered direct offering last month, which further strengthened our liquidity and enhanced our strategic flexibility. We believe this capital positions us to execute on our objectives while preserving optionality as we progress towards commercialization. I would like to thank our employees, partners, and stakeholders for the continued commitment and support. We remain focused on discipline execution and look forward to continued progress in 2026. We will now take your questions.

We will now begin the question and answer session. To ask a question, you may press star, then 1 on a touch-tone phone. If you are using a speakerphone, please pick up your handset before pressing the keys. If at any time your question has been addressed and you would like to withdraw the question, please press star, then 2. At this time, we will pause momentarily to assemble our roster. Our first question comes from Colin Rush with Oppenheimer. Please go ahead.

Hey, guys. Thanks so much for getting me on. You know, we know that you've been able to produce a set of incremental volumes of material and surely are collecting a fair amount of data around that process. You know, could you talk a little bit about your cycle times on evolving the manufacturing process at this point and what other levers you have within the platform to continue to accelerate some of that development?

Thanks for joining, Colin. Sure. We run a variety of batch sizes, which will directly affect the cycle times. We have very rapid turnaround in our electrolyte innovation center. In that center, we do two kilograms or less, depending on what the customer request is. But we can turn those batches in days. When we get up to the larger batch sizes, we typically run between 40 and 50 kilograms in our current SP2 batch facility. And the cycle times on those run approximately a week, again, depending on batch size.

Excellent. And then as you look at the different form factors that could deploy the technology at the cell level, could you talk a little bit about efforts that you're seeing on the horizon and interest that you're seeing from incremental customers to diversify some of the form factors you're working on?

A great question, but quite honestly, Colin, we haven't seen a great diversification yet. Although we could envision as some of these newer segments beyond ED are considering all solid-state batteries that they could take prismatic format or others. Right now, it's primarily pouch across all of our engagements.

Thanks so much, guys.

Our next question comes from Chris Pierce with Needham. Please go ahead with your question.

Hey, good afternoon. Just one. I guess if you're talking about, just want to make sure I heard you right, if the FKON pilot line is up and running by the end of 2026, and what is that? How should we think about 27 and 28 as sort of we hear more about NSSB batteries in these vehicles and sort of, not in the United States part of the world, but other parts of the world? I guess, should we think of 27 as a jumping-off point? And if we do think of 27 as a jumping-off point against the burn that you kind of got it to this year, should we think about you guys as having enough capital to get to that jumping-off point, or are there still too many balls in the air to sort of have certainty around that?

Chris, again, thanks for joining. Great questions. I'll take the first part and then let Linda address the second burn rate part of the question. And SK Onn has specifically, when they did their ribbon cutting at the pilot facility last year, stated that they wanted to have SOP for their batteries in 2029. And that's a one-year pull-in from prior public statements around ASSBs. So I would envision, I'll let SK Han talk to the details, but just knowing what we know about the time it takes to get from where we are to 2029, I would expect 2027 to be, again, a strong development year at the cell level, and then probably 28 being more mature leading up to the SOP in 2029.

And then, Chris, in terms of our runway, you have seen us shore this up. We did give guidance for this upcoming year of $85 million to $100 million in terms of cash investment. And then if you look at where our ending liquidity is, plus with our proceeds from the RDO, we think we're well positioned to be able to work with our partners and be sufficient on that. but we are continually looking at our runway and ensuring that we can be there for our partners.

Thanks, and good luck.

Our next question comes from Jake Sikelsky with Alliance Global Partners. Please go ahead.

Hey, John and Linda. Thanks for taking my questions.

Thank you, Jake, for joining.

Of course. Thank you, Jake, for joining. That last question a bit, looking at the pilot line and, you know, the strength and balance sheet, are you able to leverage the balance sheet at all to kind of accelerate the timeline for the line, or is it less dependent on capital availability?

Well, Jake, it's Linda again. I believe we are in a good position in our balance sheet that if there were to be an opportunity that would allow us to shorten the timeline to be able to be in a commercial production, we certainly are there. We can make those long-term investments at this point in time. Obviously, we will continue to be opportunistic in the capital markets and as well focus on our own cash burn so that we should be in a good place.

For clarity's sake, though, the line is installed in SKN's facility in Korea, and they will begin running that line by themselves, largely with our support, once SAT is completed. So any additional capital improvements or those sort of things will be their responsibility for that line. But as Linda said, if there's something that we could do to assist, we'll certainly consider that moving forward because of the strength.

Got it. Okay. That's helpful. And then just on existing partnerships, can you just touch on, you know, Any upcoming milestones you might keep an eye out for as those processes move forward this year?

Well, I think we've established through the announcement last fall with BMW and SDI our preferred approach moving forward to expand these partnerships where we are dealing directly with the OEMs to create the demand in the platforms, but then really have the Tier 1 battery partners with us providing the material and some of the expertise to achieve performance targets. So that's our preferred model going forward, and we would like to duplicate that in other areas. Also, they'll point to the comments earlier is around our intention to explore potential JV partnerships around the electrolyte manufacturing in Korea with a target of a 500-metric ton annually capacity. Power bringing, the technical expertise, the IP, the partner.

Makes sense. That's all from my end.

That concludes our question and answer session. I would like to turn the call back over to John Van Skoder, President and CEO, for any closing remarks.

Thank you for joining the call today and for your interest in solid power. We look forward to updating you again next quarter.

The conference is now concluded. Thank you for attending today's presentation. You may now disconnect.