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Operator
Good day, ladies and gentlemen. Thank you for standing by. Welcome to the ACM Research fourth quarter and fiscal year 2025 earnings conference call. (Operator Instructions)
As a reminder, we are recording todayâs call. If you have any objections, you may disconnect at this time. I will turn the call over to Mr. Steven Pelayo, Managing Director of The Blueshirt Group. Steven, please go ahead.
Steven Pelayo - Investor Relations Officer
Good day, everyone. Thank you for joining us to discuss fourth quarter and fiscal year 2025 results, which we released before the US market opened today. The release is available on our website as well as from Newswire Services. Thereâs also a supplemental slide deck posted to the investor relations section of our website that we will reference during our prepared remarks.
On the call with me today are our CEO, Dr. David Wang, our CFO, Mark McKechnie, and Lisa Feng, our CFO of our operating subsidiary, ACM Shanghai. Before we continue, please turn to slide two. Let me remind you that remarks made during this call may include predictions, estimates, or other information that might be considered forward-looking. These forward-looking statements represent ACMâs current judgment for the future. However, they are subject to risks and uncertainties that could cause actual results to differ materially.
Those risks are described under the risk factors and elsewhere in ACMâs filings with the Securities and Exchange Commission. Please do not place undue reliance on these forward-looking statements, which reflect ACMâs opinions only as of the date of this call. ACM is not obliged to update you on any revisions to these forward-looking statements.
Certain financial results that we provide on this call will be on a non-GAAP basis, which excludes stock-based compensation and unrealized gain or loss on short-term investments. For our GAAP results and reconciliations between GAAP and non-GAAP amounts, you should refer to our earnings release, which is posted on the IR section of our website, and to slides 14 and 15.
Also, unless otherwise noted, the following figures refer to the fourth quarter and fiscal year 2025, and comparisons are going to be with the fourth quarter and fiscal year 2024.
I will now turn the call over to David Wang. David?
David Wang - Chief Executive Officer and President
Thanks, Steven, hello, everyone, and welcome to ACMâs fourth quarter and fiscal year 2025 earnings conference call. Iâm pleased with our fourth quarter results, which capped off a solid year of execution. Revenue grew 9% in the fourth quarter and 15% for the full year. We continue to execute well across our core business.
We made a lot of progress with new product platforms, we strengthen our position in China and globally. Investment in AI and data center infrastructure is reshaping the global semiconductor demand, shifting capital toward advanced logic, memory, and advanced packaging. The industry is looking to key supplier for new technology, many of which have not yet been invented. ACM differentiated technology portfolio has been aligned well with this high-value process steps. Now the market is coming for us for solutions.
A good demonstration is recent momentum with several key global customer outside the mainland China market that we announced in todayâs press release. First, we announced that we have delivered multiple single wafer cleaning tools to Singapore facility of our Asia-based foundries customer. This marks ACMâs first tool installation to Singapore, a key milestone for ACM.
Second, we announced that we are receiving multiple orders for our advanced packaging tool from three global customers. This include the orders for multiple wafer-level advanced packaging system from a leading global OSAT customer based in Singapore, with the delivers scheduled for the first quarter of 2026. A panel-level advanced packaging vacuum cleaning tool from a leading global semiconductor packaging manufacturer based outside mainland China, also scheduled for delivery in the first quarter of 2026. Multiple wafer-level packaging system from a leading North America-based technology customer, with delivery scheduled later this year.
Now on to our business result. Please turn to slide 3. For the fourth quarter of 2025, we deliver $244 million in revenue, up 9%. For the year 2025, we deliver $901 million in revenue, up 15%. Top-line growth of 15% was better than growth for the overall China WFE market, which third party estimate as generally flat for 2025. We consider this good result, especially since our 2025 revenue include very little contribution from our new products.
We expect a strong product cycle in 2026 from SPM cleaning and our furnace product, as we made a very good technical progress for this new product across our customer base. We also made a good progress with our supercritical CO2 dry track, panel level plating, and PECVD, which we expect to contribute some more in 2026, but more in 2027 and beyond.
Shipment for 2025 were $854 million versus $973 million. 2024 shipment increased 63% over the year, so we had a tough compare. We also had some shipment for new product pushed into 2026. Importantly, we expect the 2026 shipment growth to be higher than our 2026 revenue growth.
Growth margin was 41% for the fourth quarter and 44.5% for the full year. Q4 growth margin was slightly below our long-term target range of 42%-48%. We attribute the Q4 level to product mixing, including a few semi-critical product with a lower margin due to the competitive pressure, and also higher seasonal inventory provisions. We expect our lower growth margin to be temporary.
We believe our new product ramp, combined with the product design and the supply chain initiative, will enable us to deliver the best product at a low cost. Thereâs no changing to our long-term target model range of 42%-48%. Moving on. We ended the year with a net cash of $845 million, versus $259 million at the year end of 2024.
This balance sheet provides the foundation to continue our effort to develop world-class tools for the leading global semiconductor manufacturers. Before I review our product, I will provide our view on competitive dynamics in China and how we will win in this environment. We have recently seen a flood of new local entrants to the China capital equipment industry.
In many case, there are five or more player going after a single point product, all with very similar design and performance. We believe we will compete and win in China market because, number one, we have a differential technology with many product, almost the best in the world. Two, we have a deep portfolio of IP with strong protection in China. Three, our local customer demand the best technology in order to compete in the global markets.
Now, I will provide detail on product. Please turn to slide 4. Revenue from single wafer cleaning, Tahoe, and semi-critical cleaning tool was $626 million, up 8% in 2025, and represent 69% of total revenue. We now estimate our cleaning portfolio addresses 95% of the application and process step, we are working on developing remaining solution that will bring us to 100% in 2026.
We believe ACM now has the widest coverage of cleaning tool, far more extensive as compared to all competitors. The 8% year-over-year growth in 2025 included very little contribution from our newer cleaning line. We expect this new product, including single wafer SPM, Tahoe, and N2 bubbling wet etch, to contribute more meaningfully to our 2026 revenue. As the industry moves to more advanced nodes, we expect increased demand for high performance cleaning tools.
The increased adoption of multiple patterning is driving higher layer counts, potentially impact yields, and it demand more cleaning steps with a higher cleaning efficiency. We believe this plays right into ACMâs strengths. For example, our proprietary N2 bubbling etching technology is uniquely positioned in the market. We are seeing growth, interest for advanced 3D NAND application, where larger bubble size and the uniformity control will become more critical as the industry moves to 300 layer and above.
In SPM cleaning, customer are recognized advantage of our proprietary nozzle and the chamber design. We believe our platform outperforming leading competitors in small particle cleaning performance. We made a significant technical progress at the end of 2025 with our new SPM nozzle design. We achieved a 3 nanoparticle size count of under 20, which we believe is the best-in-class performance for the industry.
Our unique nozzle design does not require any routine chamber DI water cleaning. This is a big deal for customer because it not only deliver the better cleaning environment for the chamber, but it also increase uptime of our equipment. As a result, Iâm pleased to report today that we have received a strong repeat order for our SPM cleaning tools from major customer for delivering to modular fab in 2026.
We are also seeing very strong interest for our unique SPM technology from numerous global customer because they are not satisfied with the performance of their current plan of the record tool. Our supercritical CO2 dry tool integrate ACM proprietary cleaning IP, while reducing CO2 consumption by approximately 40% as compared to their competitors.
This result in process efficiency with lower operating cost. We made a successful in-house demo for the multiple logic and the memory customer at the end of 2025. We have already received a demo PO for evaluation tools from two customer for delivery in middle of 2026, we expect to deliver additional tools to multiple customer later this year.
In mainland China alone, we estimate the incremental market opportunity for this next generation cleaning product is nearly $1 billion. We remain confident in our long-term objective to achieve approximately 60% of the market share in China cleaning market, we expect the cleaning to outgrow the China WFE this year and in the year ahead. We estimate our market share for ECP in China is now more than 40%, we remain confident in our long-term goal to achieve 60% or more.
Front-end tool was represent about 70% of the mixing for year, including our MAP Plus, Ultra ECP 3d, Ultra ECP GIII products. ECP back-end tool were about 30% of the mix, including our Ultra ECP ap product line. In Q4, we delivered our first Ultra ECP ap-p horizontal panel level electroplating tool to an industry-leading large panel fabrication customer.
Our customer prefer, ACM prefer, horizontal plating solution versus competitive vertical plating approach, due to the much better plating film uniformity and much less cross-contamination between multiple plating chemicals. We expect a growing customer interest in our panel-level solution as the industry looks for higher throughput and low cost to support advanced packaging solution for multiple large die sites and HBM, AI chips. As discussed earlier, we received order from three global customer for both wafer level and the panel level packaging tools.
Our furnace tool are under various stage of evaluation on many customer. Revenue from furnace was relatively small in 2025, and we expect a more meaningful contribution in 2026. We made several technical breakthrough for LPCVD and ALD and PALD in 2025. We see good demand across multiple application, including high temperature anneal, especially 1,350 degrees version, LPCVD, ALD, and PALD.
We believe ACM differential design position us to capture meaningful market share. Revenue from advanced packaging, which is good ECP, but including service and the spare, was up 45% in 2025 to $76 million, and represent 8% of revenue. This includes coater, developer, etcher, stripper, scrubber, and vacuum cleaning tools.
We believe ACM is only company to offer a full portfolio of wet process tool and world-class plating product for the advanced packaging. We think the combination is very powerful. It provide ACM with valuable insight into the challenging of next-generation packaging as AI drives industry towards 2.5D and 3D integration. We are making solid progress with our new track on the PECVD platforms.
Last September, we delivered our high-throughput, 300 WPH KrF track tool for evaluation at a key customer. We expect a mass production qualification in 2026 for the tool, and we anticipate this will lead to demand from additional customers, including both standalone and full integrated system, in line with the lithography tool. We believe our high-throughput design positions this platform to compete effectively with the current supplier.
In Q4, we delivered our first Ultra Lith BK system. This milestone represent the first customer deploy of our track series, following early demonstration and the validation. It also marked our entry into the display panel market, a new segment that require high volume manufacturing and strong performance stability. We anticipate to develop our proprietary PECVD platform.
Our design has 3 chuck per chamber, which we believe is the only one in the world. This provides flexibility for a wide range of our process with the same hardware. We feel good about our positioning as the team works through the technical detail with a field tool in our Lingang mini lab, running wafer tests and a custom demo wafer. We expect to ship multiple EVA tools in the near term.
In summary, our innovation engine contribute to drive differentiated solution across a broad of our growing portfolio. AI drives a more complex semiconductor process, customer are turning to ACM as a trusted partner to help solving their increasing challenges.
Let me provide update on our production facility. Our Lingang. Please turn to slide 8. Our Lingang Production and R&D Center is now our primary production center. The first building is in volume production, and the second provides capacity for the future expansion.
Together, the two facility can support up to $3 billion in annual output. During 2025, we made a good progress on our mini line and Ningbo. We have enhanced our process development capability and now support on-site customer evaluation in fab-like conditions. Our mini line, including ACM tools and tools from other player and metrology tools.
We believe the mini line will accelerate our internal product validation, shorten R&D and qualification cycle, and strengthen collaboration with the key customer as we introduce next-generation platforms. Our Oregon facility.
Please turn to slide 9. We are accelerating investment in Oregon, with the operation expected to beginning in the second half of 2026. This facility will allow customers to evaluate our technology and to test their wafer locally, and it will serve as our initial base for production in the United States. Our global customer are encouraged by our commitment, which we believe will help them to choose ACM as a key supplier to scale production. We remain very pleased by the success of ACM Shanghai team, which continue to be a key supplier to the semiconductor industry in Asia.
ACM Shanghai has also proven to be a great source of capital and financial flexibility for ACM. In September 2025, ACM Shanghai completed a private offering of ordinary share, generating approximately $623 million in net proceeds. In February 2026, we completed the sale of approximately 4.8 million ACM Shanghai shares at RMB, at the 160 RMB per share, generating approximately $111 million in gross proceeds. ACM Shanghai also has been a good source of dividends in 2023, 2024, and 2025. We received dividends net of tax of $19.2 million, $28.5 million, and $29 million, respectively. Our major ownership in Shanghai, ACM Shanghai, remain a strategic asset.
It enhanced our financial flexibility and supporting disciplined execution as we continue expanding globally. Taken together, our expanding product portfolio, increased manufacturing capacity, and a strengthening capital position give us confidence in our long-term strategy.
Turn to our outlook for the full year 2026. Please turn to slide 10. In middle January, we introduced our 2026 revenue outlook in a range of $1.08 billion-$1.175 billion. This implies 25% year-over-year growth at the middle point. We reiterate this outlook today. Since our founding in California in 1998, and the establishment of ACM Shanghai in 2005, weâre building a globally competitive semiconductor equipment company, grounded in innovation and differential technology.
Our leadership in cleaning and electroplating created a strong foundation, and we are now expanding across furnace, track, and PECVD as we broaden our multiple product portfolio. In Asia, we are recognized as a leader in wafer cleaning and plating, and we are engaging with a global customer across US and Europe.
With continued progress across SPM, Tahoe, supercritical CO2 dry, furnace, track, PECVD, and panel-level packaging, we believe we are entering a new phase of a product cycle that will driving substandard growth. We have the customer, the product, the capacity, and the capital to execute our global business plan, and we remain committed to our long-term target of $4 billion in revenue.
Now let me turn the call over to our CFO Mark, who will review details of our first quarter and full year results. Mark, please.
Mark Mckechnie - Chief Financial Officer, Treasurer, Secretary
Thank you, David. Good day, everyone. Please turn to slide 11 and 12. Unless I note otherwise, Iâll refer to non-GAAP financial measures, which exclude stock-based compensation, unrealized gain loss on short-term investments.
Reconciliation of these non-GAAP measures to comparable GAAP measures is included in our earnings release. Unless otherwise noted, the following figures refer to the fourth quarter and full year of 2025, and comparisons are with the fourth quarter and full year of 2024. I will now provide financial highlights. Revenue was $244 million for the fourth quarter, up 9.4%. For the full year, revenue is $901.3 million, up 15.2%. Full year revenue was in line with our original guidance set a year ago and slightly above the updated range announced on January 22.
Fourth-quarter revenue for single wafer cleaning, Tahoe, and semi-critical cleaning was $159.9 million, up 3%. For the year, this category grew by 8.1%. Fourth-quarter revenue for ECP, front-end packaging, furnace, and other technologies was $64.1 million, up 23.9%. For the year, this category grew by 32.1%. Fourth quarter revenue for advanced packaging, excluding ECP, services, and spares, was $20.5 million, up 23.8%. For the year, this category grew by 45.3%.
I will now provide revenue mix by customer type for 2025. Starting this year, rather than disclosing specific customer names, we are now disclosing revenue by customer type once a year. For each customer type, this includes products, services, and spare parts.
Weâve included the mix table on slide 7 of our presentation. For 2025, our revenue mix by customer type was split among foundry, logic, and other 59%, memory 27%, packaging and wafer processing 14%. 2025, we had 4, 10+% customers, including our top customer was 16.9%, next was 13.5%, then 11.6%, and 10.2%, for an aggregate total of four customers representing 52.2% of total sales. For 2024, we had four, 10% customer, also for a total of 52.2%. Total shipments were $228 million for the fourth quarter, down 13.5%, and $854 million for the full year of 2025, down 12.2%.
David noted we had a tough compare versus a strong 2024, when shipments increased 63% year-over-year. We also did have some shipments for new products pushed into 2026. We expect 2026 shipment growth rate to be higher than our 2026 revenue growth rate. Gross margin was 41.0% for the fourth quarter, and 49.8%. For the full year, gross margin was 44.5% versus 50.4% in 2024. Q4 gross margin was slightly below our long-term target model. Adding to Davidâs earlier remarks, gross margins were down 8.8 percentage points year-over-year on a quarterly basis.
This was due to product mix and margin pressure concentrated in a few semi-critical products, which contributed about 5 points of the headwind, and a higher level of inventory provisions that contributed about 4%, 4 points negative impact. As David noted, we expect the lower gross margins to be temporary. We believe our new product ramp, combined with supply chain initiatives, will enable us to deliver the best products at a low cost, and there is no change to our long-term target model range of 42%-48%. For modeling purposes, we expect gross margins to be at the lower end of this longer-term target range for the first half of 2026, with an anticipated lift in the second half, due in part to contribution from newer products, which generally have higher gross margins.
Operating expenses were $70.6 million for the fourth quarter, up 21%. For the full year, operating expenses were $258.4 million, up 34%. For 2025, R&D was 15.1% of sales and marketing was 7.8% of sales, and G&A was 5.8% of sales. For 2026, we plan for R&D in the 16%-18% range, sales and marketing in the 7%-8% range, and G&A in the 6% range. Operating income was $29.5 million for the fourth quarter versus $52.8 million. Operating margin for Q4 2025 was 12.1% as compared to 23.6%. For the full year, operating margin was 15.9% as compared to 25.6%.
Long term, we look to grow our R&D spending in line with revenue, but we expect to show operating leverage in SG&A, with spending growth below our revenue growth level. Income tax expense was $6.6 million for the fourth quarter versus $17.3 million.
For the full year, income tax expense was $13.3 million versus $35 million in 2024. For 2026, we expect our effective tax rate in the 8%-10% range. Net income attributable to ACM Research was $17.3 million for the fourth quarter versus $37.7 million. For the full year, net income attributable to ACM Research was $110.2 million versus $152.2 million. Net income for diluted share was $0.25 for the fourth quarter versus $0.56.
For the full year, net income per diluted share was $1.61 versus $2.26. Our non-GAAP net income excluded $6.4 million of stock-based compensation expense for the fourth quarter and $33.6 million for the full year. I will now review selected balance sheet and cash flow items.
Cash, cash equivalents, restricted cash, and time deposits were $1.13 billion versus $441 million at year-end 2024. Net cash, which excludes short-term and long-term debt, was $845.5 million versus $259.1 million at year-end 2024. $585.4 million increase in net cash for 2025 included $623 million net raised in the private offering by ACM Shanghai in 2025.
Total inventory at year-end was $702.6 million versus $676.4 million at the end of the third quarter. Raw materials were $349.7 million, up $23.5 million quarter over quarter. We made additional strategic purchases to support production plans and to mitigate any potential supply chain risk. Work in process was $61.4 million, up $1.9 million quarter over quarter.
Finished goods inventory was $291.6 million, up $0.9 million quarter-over-quarter. Finished goods inventory primarily consists of first tools under evaluation at our customer sites, along with finished goods located at ACMâs facilities. Cash provided by operations was $33.9 million for the fourth quarter. For the full year, cash 2025, cash used by operations was about $10 million.
CapEx were $58 million for the full year 2025. For the full year 2026, we expect to spend about $200 million in CapEx. This includes continued investments in Lingang, including the mini-line and the second production facility, fixed assets for the business and investments in Oregon, along with other items.
That concludes our prepared remarks. Letâs open the call for any questions that you may have. Operator, please go ahead.
Operator
Thank you. (Operator Instructions) Charles Shi, Needham and Company.
Charles Shi - Analyst
Hi, thanks for taking my question. I believe you gave a pretty good color on shipment versus revenue growth this year. Have a question since you mentioned about new products, probably going to be a bigger driver this year for growth, and wondering if you can give some color, letâs say, excluding the new products, whatâs the growth, either shipment or revenue, is expected to be, excluding all the new products, for the -- I think maybe Iâm talking about the existing product lines in cleans, plating, et cetera? Thank you.
David Wang - Chief Executive Officer and President
Okay. Okay, thank you, Charles. Actually that is, we, as we said, we made quite a big progress, right, in the SPM process. In general, speaking, SPM, color SPM, represent 25% to 30% of the cleaning market. This market, in the last couple of years, were not much touched so much.
As I said, last 2025, we made a very good progress, and both into their special module design for the high temperature and also a powerful product. Weâre getting to very aggressively into this market. Again, this is a very high high margin product, and also a lot of our customer, both in the mainland China, also outside China, they have suffered a particle issue with this high temperature SPM process.
With, we think with our proprietary design model, we can control a very good environment, so therefore, can be really reduce particle size. That can be really enhance our market growth in cleaning. Secondly, I want to say that is our N2 bubbling proprietary bubbling wet etch technology is really critical for the 3D NAND sitting in nitric etching process, which we believe our proprietary technology not only cover todayâs demand for 300 layer, we believe as people move into 400 or even 500 layer, will suffer this kind of uniformity of the via top or via bottom, right? Weâre using large bubble and size. With our proprietary technology, we can make a very uniform and large bubble distribution in a tank.
That will be really enhance the etching uniformity and from the top to the bottom for the via. We believe thatâs not only demand in the, in the market in China, we also see that demand outside the global market, too. Third one, I also mentioned that is our supercritical CO2 dry. We also made a lot of progress, right? Which is the past customer demo.
We have two tools scheduled to be delivered in the first or second quarter of this year. We have additional interest in coming in. Since the supercritical CO2, with our provided design, we got a capacity or cavity, our CO2 chamber is about 40% smaller. We believe that weâre really providing customer a 40% reduction of the consumable cost.
That really also, again, right, driving this product not in a, in a, in a local, I call it China market, but also getting to the outside China market. With all this cleaning, I call the together, we believe all the expansion in the future, this will probably represent, even China, almost a billion-dollar market potential for us to get in. Weâre still very exciting about our continued expanding our cleaning product in the, in the China market. Plus, also give us a really strong differential technology exposure to global market. Right? Thatâs for cleaning.
Again, for copper plating, as I mentioned we have a full set of the cleaning product front end, TSV, back end, advanced packaging, including also this I call the compound semiconductor.
Recent, we just announced our panel, horizontal plating, which we believe very, very key technology to driving for the panel size plating. This moment, everybody using vertical and copper plating for panel. Weâre the first one in the world so far doing horizontal plating, right? With our differential technology, we believe probably, most likely, weâre the only one in the market to drive another horizontal copper plating.
This is also we see the bigger interest not only in the China market, we see also a lot of interest coming in for us to deliver this tool. With that, all new product our existing cleaning copper plating can drive a lot of revenue this year, including next year, right? Plus, as I said, we, our other furnace and PECVD and also track business, weâre developing for last four or five years, really made a lot of technological breakthrough, too. Believe those technology getting this year, start getting market and weâre real sustaining our next three to five years growth.
Which you know that last three, four year, our major growth is come from cleaning the copper plating. Next few year, we see this new product coming in, will definitely strengthening our high growth profile in next few years. Weâre very exciting, very try to, as execution our strategy, to continue to grow our, our revenue. Charles?
Charles Shi - Analyst
Thanks, David. Maybe a question on profitability. You reported the last year, you gave some color about this year, but I believe if my math is right, your operating margin will compress the last year from maybe close to 26% in 2024 to 16% in 2025.
This year, based on your what you guided about growth margin, what you guided about R&D, SG&A, doesnât look like operating margin can rebound. Feels like operating margin probably more or less the same, or even coming down a little bit, depending on how the growth margin trends for the remainder of the year. Want to get some sense how whatâs the reason for operating margin being under pressure for almost two years? How do you plan to address this and maybe try to expand the operating margin from here? Thank you.
David Wang - Chief Executive Officer and President
Yeah, actually, letâs this way looking at gross margin, right? We are the probably top of the equipment company in China, right, for gross margin, right, the last few year. As you said, Q4 of our, especially Q4 last year, we do see our first time our gross margin is lower than our range, 40%-48%, right? As explaining, maybe three factor, one is the product mixing. We have one or two product, which is a semi-critical tool, do have a pressure from the competitor for pricing there. The next one is really our this inventory provision.
We think this year, as we are new product coming in, as I mentioned, this three cleaning product coming in, will definitely enhance our margin. Also our inventory provision, we believe, will be also greatly reduced too. With that, we still have a confidence weâre in a 40%-48% growth margin in this year or beyond. More than that is, as you said, we put quite a bit of R&D last year, right? It used to be R&D, 13%, 14%. This last year, weâre getting to 16%. Weâre probably will keep that number and in a way. Why? You know, the next few year, AI is driving a lot of demand for the new technology.
Everybody else first-tier company in outside China, all people put a lot of R&D. Weâll continue to invest that, which we know will impact a little bit our operation margin, but itâs worth to spend the money now. Why? I said opportunity is there, right? A lot of customer real demand for the new technology, which I believe a lot of AI technology today, even not invented yet. Itâs really give ACM good opportunity with our I call it our innovation power, our defense technology, development capability. We can use this AI as a trend. Weâll catch a lot of our new technology and also catch the customer. This around the place is one good example, for example, right?
Again, itâs worth to spend more R&D, even get a few percent of the operation margin lower, which is real long run, and weâre working for the investor interest and also the growth ACM market and into the next few years.
Mark Mckechnie - Chief Financial Officer, Treasurer, Secretary
Yeah. Hey, David, I might add a few things. I think that was a good overview. Charles Shi, I think, kind of summarizing it up weâre spending into the $4 billion market opportunity. Thereâs a number of products that, areas that, weâve been investing in that havenât scaled yet, but we expect them to scale over the next few years. Itâs the right thing to do to spend into that. Youâre right about the operating margin for 2026, kind of comes in at the mid-teen level similar to what it was here in 2025.
You move out a few years, we our target is to keep those gross margins at that target range, and then grow our top line faster than our OpEx. I think you can see some leverage in the out years.
Operator
Edison Lee, Jefferies.
Edison Lee - Analyst
Hi, David and Mark. Congratulations on the results. I just have two quick questions. Number one is that for the fourth quarter, the margin is a little bit low, and the revenue growth also is a little bit slow, and then your shipment, I think, declined for on a year-on-year basis. How much of that is just product mix and seasonality, and when you think these numbers will actually start improving in 2026? The second question is about the $111 billion you raised by selling down ACMS. Can you shed some light as to how you would actually utilize that proceeds?
David Wang - Chief Executive Officer and President
Okay, letâs answer your first question, right? I think that you looking there, as I mentioned last couple of year, our major growth engine from cleaning and also copper plating, right? Even the cleaning, I said, thereâs one important product, which is SPM process, weâre not touched too much. As I mentioned last year end of last year Q4 last year, we made a significant progress with this special novel design. We believe our performance is outperforming and theyâre top tier as a tool. We see that grow more continuously, right? I would say our cleaning, copper plating, and also horizontal panel continue to expand it too. That will keep the momentum.
Our cleaning market probably today in China, about 35 range, weâre expanding to 50%-60% next few year. The copper right now, the 40, I still say weâre trying to catch 60 and beyond mark in China. More than that is those product, different product, we see the very high interest from global top-tier customer. Thatâs what we also reinforce ourselves outside China. Thatâs why I see the impact our, or as boost our revenue for our existing product.
Also I want to see that in through the last five year, we are really working with differentiator PECVD and track, and then also furnace technology, which we believe a lot of our new technology weâre putting in, and nobody had it before, right?
Thatâs what reinforce our, I call the market position. Plus, those tool, it really, with our differential technology, we put a lot of time to develop IP, develop the roadmap. It cost a little long time than the other guys. Now itâs come the moment to the market. Plus, I want to see another bigger impact is, I call the improvement, is last Q3, we start using Ningdong mini line, which we do not have it before. That was really helping our internal demonstration, internal R&D and speed. We see the bigger impact already. That will be helping our tool mature before ship the customer.
With all together, I want to say this is a new growth, and from the existing and also our new product coming in, weâre driving ACM in real high growth profile in the year, this year and in the next few year. Weâre very confident. Even I say WFE market in China is flat, whichever we can get a higher growth rate because of new product coming in.
As you say, we have made a lot of progress in the global customer this news announced today. We also see a lot of interest in coming into our differential technology from top-tier customer. We have a pattern, has been locked the technology already. They almost have no choice. They have to come to us.
Thatâs really exciting for our technology. Weâre really trying to pushing our technology will benefit the international global customer for their AI challenges.
Mark Mckechnie - Chief Financial Officer, Treasurer, Secretary
Yeah. Hey, David.
David Wang - Chief Executive Officer and President
Mark, anything you want to add on that?
Mark Mckechnie - Chief Financial Officer, Treasurer, Secretary
Yeah, let me add on to something before you answer his question about our Shanghai stock sales. Edison, for Q4, you probably remember last call, we mentioned that Q4 in the year. You know, the overall year came in at the midpoint of where we started the year, maybe a little bit better. Donât forget, we had two things. Our newer products didnât kick in very little in 2025, we did have a customer push out from Q4 into 2026. That was kind of a, those two things that hit 2024. Iâm sorry, the Q4.
When you look out to 2025 weâre expecting linearity pretty similar to Iâm sorry, 2026, weâre expecting our linearity to be pretty similar. The first half will be about 42%-43% of revenue. Second half will be 57% to 58%. I would kind of anticipate Q1 at about 18% to 20% of the full year mix. Maybe David, if you wanted to take his question, what are we gonna do with the cash that we raised in or that we sold the cash that we sold? Yeah.
Edison Lee - Analyst
Sorry. Sorry, Mark. Mark, can you hear me?
Mark Mckechnie - Chief Financial Officer, Treasurer, Secretary
Yes. Yeah.
Edison Lee - Analyst
Hey, before we move on to the use of proceeds, can you also comment a little bit on what you said about, I think some products having some pricing pressure, which I think partially account for lower margin in the fourth quarter?
Mark Mckechnie - Chief Financial Officer, Treasurer, Secretary
Yeah. Thereâs not much to add to what I said there. You know, we, or what David and I both said. You know, there were a couple of semi-critical products that had particularly low margins that hit us in Q3 and Q4. You know, David mentioned in the prepared remarks, he talked about the competitive situation in China. You know, we are very focused on developing world-class tools. We think that there was also a bigger provision in the back half of the year. We think thatâll be the overall provision for 2026, probably be smaller than it was in 2025, and itâd probably be more balanced throughout the year. Yeah.
Edison Lee - Analyst
Okay.
David Wang - Chief Executive Officer and President
You want me to touch on how weâre using proceeds, right?
Edison Lee - Analyst
Yes.
David Wang - Chief Executive Officer and President
Well, obviously, we have a second offering in China, right. Those money will be really focusing on R&D again, our expansion for their manufacturing. We have a second building where we start to decoration this year. With that add together, probably we can manufacture $3 billion annually, and which would really give us a lot of room for manufacturing. Plus, weâre also putting money in the, in the mini line. As I mentioned, this mini line really speed up our internal R&D and debugging the tool, and also even can do. We join development with the customer process, too. So itâs really worth spending for this money.
The proceed we got from the so the 1.3% from Shanghai here, definitely the major purpose for that was spending global customer, global marketing sale. We see that opportunity really big in a global market. As I mentioned, we do have some differential, and technology might be the only solution for their, for their AI challenging. Those product, we think, will be really gather attention from the global customer. We have to spend money and building the international, strongly sales channel. Also, we already had a Korea manufacturer base already. However with this geographic tariff going on, we have to minimize the tariff impact, right?
Thatâs why we start the assembly tool in the USA. That will be real, reduce our concern or any dynamic changing for those tariff impact our revenue. Anyway, thatâs really what we count. Our goal is very simple. We try to working with the with satisfy all regulation and requirement and maximize the investor interest. Weâre building a global sales, global company. Thatâs our goal.
Operator
Jimmy Huang, JP Morgan.
Jimmy Huang - Analyst
Hi. Hi, David. Can you hear me?
David Wang - Chief Executive Officer and President
Yes, please.
Jimmy Huang - Analyst
Thank you. Congrats for the good results. I want to ask about we deliver a single wafer cleaning tools to a Singapore-based foundry. What would be the potential size of shipments in terms of units or dollars this year or next year? Next year. This is my first question.
David Wang - Chief Executive Officer and President
Yeah, good, very good question. Actually we have a few tool or weâre in the installation process right now, right? Those tool this tool will be qualified and go in production this year. With that, we definitely will introduce more of a cleaning tool. Also, we do have a copper plating in the behind. Thatâs really what give us exposure of product in Asian market. It will be real making more of a, I call it confidence, and also get a high interest from other player in Asia, in the market, too. We see this a really bigger milestone and for us.
Plus weâre not only look at a customer only in Singapore, we do have a customer in Korea, also we have customer potentially in Taiwan. We have really confidence we should have expanding quickly in Asia market. Plus, again weâre also very focusing on our US market, too. We do have an advanced packaging tool, PO and receiving, which will deliver by end of this year. We see a lot of potential going on in US market, too.
Again, because today, all the memory or logic, theyâre they are AI driving for their advanced technology. ACM I want to say, I feel good technology is really needed for their production line. We believe thatâs very beneficial for the customer and also can help expansion our market to global. Itâs a great opportunity --
Jimmy Huang - Analyst
Yeah.
David Wang - Chief Executive Officer and President
Again, in innovation is a key, and every customer and every key customer, they all demand for innovation technology, which it will perfectly fit our strategy.
Jimmy Huang - Analyst
Yeah, thank you, Dr. Wang. For Singapore business, howâs the chance that we penetrate to Singapore-based memory makers in the next few years? My second question is for advanced packaging. We are making great progress, but for Taiwan, Taiwanese foundries and also are leading the panel-level packaging for AI, GPUs and ASICs. Can we talk about our POP progress with potential Taiwanese players? Do we have any, like, order forecasts or purchase orders in from these Taiwanese potential customers? Yeah.
David Wang - Chief Executive Officer and President
Yeah, actually we are talking to a few key customer, right? Even a panel, large size, 515 by 510, and also weâre talking about their 310 by 310, right? Which is the two vision right now, people try to push in. We have very good exposure to those customer.
By the way, April 7, 8, weâll have attending the panel conference in the Taiwan. In that conference, weâll do the keynote speaker about the horizontal plating and also our vacuum cleaning technology. Itâs really a lot of exciting, I want to say, interest coming in. Also I said, I heard everybody say panel, product or equipment, theyâre probably satisfy all other product except their plating. Plating become a bottleneck for their production expansion.
With that demand, I said, we are the only one supplying horizontal plating. You probably heard that is the one key player in Taiwan. They said that they only want a horizontal plating. They donât want a vertical. Our horizontal plating perfect fits their strategy or their demand. As I said, is really we see the big opportunity and with our panel product.
Actually, weâre not only trying to say introduce it, so far three product, right? Panel plating, vacuum cleaning, and also the bevel. Weâre going to be available also additional and the co-developer, wet etcher, and cleaning, all kind of, wet tool weâre putting in too. Thatâs really what we catch the real, this, wave of the panel, I call the, shift, right?
Weâre in a very good position and for those coming panel advanced packaging expanding. Weâre very excited about this opportunity, right?
Jimmy Huang - Analyst
Yeah. Do you know, like, in which kind of periods, quarters, it will be more clear that whether weâll have any order forecast or purchase orders for this POP, equipments for? Yeah.
David Wang - Chief Executive Officer and President
Well letâs put it this way, right? Weâre announced that we do have also PO from outside mainland China, right? I mean, we said already, you know what I mean here. Weâre continually expanding more, right? Again, I want to say, this year, we have a confidence, catch additional PO for our bevel, I mean, for our vacuum cleaning and also for the horizontal copper plating. Probably not only in Taiwan market.
Jimmy Huang - Analyst
Yeah.
David Wang - Chief Executive Officer and President
We also see the opportunity in Korea, also in Singapore, by the way. Itâs very exciting.
Jimmy Huang - Analyst
Yeah, thank you. Maybe I can squeeze in my last question about investor FAQ. Like, ACM has disposed a small portion of stock in ACM Shanghai. How do we think about more further stock disposal in the future? You mentioned that US international capacity builds will require more fundings. Will we dispose of more stocks of ACM Shanghai in the future? Yeah.
David Wang - Chief Executive Officer and President
Repeat the question again. Iâm sorry. Can you repeat again?
Steven Pelayo - Investor Relations Officer
Heâs asking, are we gonna sell more of our ACM Shanghai?
David Wang - Chief Executive Officer and President
I see. I see. Okay. You know, we sold 1.3% already, right? Which got a proceed about $111 million. We do have a both arm to acquire this money. We can raise in US. We can raise in Shanghai. Weâre very flexible for what we were choosing, number one. This moment, I want to say our Shanghai stock is still we think itâs still undervalued, okay, with our growth. We maybe consider whatâs the money demand and the timeline, also whatâs the stock price in Shanghai, will decide where or when or we should sell additional or not. Plus, as I said, we have several arm we can raise the money USA. Itâs quite flexible for us to raise the fund.
This moment I want to say, well, obviously weâll continue investing more in global market, and we have no concern for those money, where it come from, right? Weâre very confident. We also have another knob, another tool, we can get the money anyway.
Operator
Thank you. Seeing no more questions in the queue, let me turn the call back over to Steven Pelayo for closing remarks.
Steven Pelayo - Investor Relations Officer
Okay, great. Before we conclude, I just want to give everyone a quick reminder on our upcoming investor conferences.
On March 9, we will participate virtually in Loop Capital Marketsâ 7th Annual Investor Conference for one-on-one meetings. On March 23 and 24, we will present at the 38th Annual Roth Conference in Dana Point, California. Attendance at the conference is by invitation only. For interested investors, please contact your respective sales representative to register and schedule one-on-one meetings with the management team.
This concludes the call, and you may now disconnect. Take care.
Operator
This concludes todayâs conference call. Thank you for participating, and you may now disconnect everyone. Have a great day!