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Operator
Good afternoon, everyone, and welcome to AXT's First Quarter 2019 Financial Conference Call.
Leading the call today is Dr. Morris Young, Chief Executive Officer; and Gary Fischer, Chief Financial Officer. My name is Sarah, and I will be your coordinator today. (Operator Instructions) As a reminder, this call is being recorded.
I would now like to turn the call over to Leslie Green, Investor Relations for AXT. Please go ahead.
Leslie Green
Thank you, Sarah, and good afternoon, everyone. Before we begin, I would like to remind you that during the course of this conference call, including comments made in response to your questions, we will provide projections or make other forward-looking statements regarding, among other things, the future financial performance of the company; market conditions and trends, including expected growth in the markets we serve; emerging applications using chips or devices fabricated on our substrate; our product mix; our ability to increase orders in succeeding quarters; to control costs and expenses; to improve manufacturing yields and efficiencies; to utilize manufacturing capacity; the schedule and timeliness regarding our relocation; the growing environmental, health and safety and chemical industry regulations in China; as well as global economic conditions and political conditions, including trade tariff and restrictions.
We wish to caution you that such statements deal with future events, are based on management's current expectations and are subject to risks and uncertainties that could cause actual events or results to differ materially.
These uncertainties and risks, include, but are not limited to, overall conditions in the market, markets in which the company competes, global financial conditions and uncertainties, potential tariff and trade restrictions, increased environmental regulations in China, market acceptance and demand for the company's products, the financial performance of our partially owned supply chain company, the impact of delays by our customers on the timing of sales of their products.
In addition to the factors that may be discussed in this call, we will refer you to the company's periodic reports filed with the Securities and Exchange Commission and available online by link from our website for additional information on risk factors that could cause actual results to differ materially from our current expectations.
This conference call will be available on our website at axt.com through April 24, 2020. Also, before we begin, I want to note that shortly following the close of market today, we issued a press release reporting financial results for the first quarter. This information is available on the Investor Relations portion of our website at axt.com.
I would now like to turn the call over to Gary Fischer for a review of our first quarter results. Gary?
Gary L. Fischer - CFO, VP & Corporate Secretary
Thank you, Leslie, and good afternoon. Total revenue for the first quarter of 2019 was $20.2 million. This compares with $22.2 million in the fourth quarter of 2018 and $24.4 million for the first quarter of 2018.
Of our total revenue, substrate sales dropped modestly to $16.8 million from $17.2 million in the prior quarter. Revenue from our raw material joint ventures was $3.4 million in Q1 compared with $5.0 million in Q4.
During Q1, we made 2 important changes to our raw material joint venture portfolio. I'd like to discuss the first change now and the second change in a moment when I cover the below the operating line items.
The first change we made in Q1 was to reduce our ownership in one of the consolidated, partially owned companies by selling a portion of our interest to our investment partner who is the landlord of this company. The co-owned company produce the raw gallium and has been struggling for some time, primarily as a result of the industry-wide drop in raw gallium prices. Our partner in the business has now become the largest shareholder, with our ownership dropping to 39%. As a result, we will no longer use the accounting method of consolidation to bring the results of this company to our consolidated results, including our revenue line. Instead, we will use the equity method of accounting where our ownership will impact the below the operating numbers in the line called equity and earning/loss of unconsolidated joint ventures.
The net result that investors will notice is that we will consolidate 2 raw material companies rather than 3, and our revenue from raw material joint ventures going forward will likely be in the range of $3.5 million to $4.5 million per quarter as it was in Q1.
Turning back to our results. In the first quarter of 2019, revenue from North America was 13%, Asia Pacific 65% and Europe was 22%. In the first quarter, 2 customers reached 10% of revenue, and the top 5 customers generated approximately 35% of revenue.
Gross margin in the first quarter was 33.1%, up from 26.3% in the prior quarter. This improvement was primarily the result of product mix as well as good manufacturing disciplines and favorable raw material pricing.
Total operating expenses in Q1 were $6.1 million compared with $6.5 million in Q4. Total stock compensation expense for the first quarter of 2019 was $558,000. Operating income for the first quarter of 2019 was $629,000 compared with an operating loss of $638,000 in the previous quarter and an operating profit of $3.9 million for Q1 of 2018.
Interest and other income in the first quarter was a net change of $1.5 million. This number consists of 3 categories: number one, net interest earned of about $95,000; number two, foreign exchange loss and other expenses of $134,000; and number three, equity accounting on our unconsolidated joint venture companies, which was a charge of $1.5 million.
As I mentioned, we made 2 important changes to our raw material joint venture portfolio in Q1. This is the second change. The equity accounting on our unconsolidated joint venture companies in Q1 included the complete write-down of our investment in a germanium mining company of which we own 25%. The charge totaled $1.7 million. This combines the quarterly loss assigned to AXT of $600,000 plus an impairment write-down of $1.1 million. As many of you know, this state-owned mining company has been underperforming for some time and has been a headwind for the collective financial contribution to our joint venture portfolio.
In early April, we learned of its continuing difficulties and have a forecast for losses throughout all of 2019, which are large enough to reduce the asset on our books to 0. After careful review, we determined this to be an impaired asset, and we rolled off the remaining asset of $1.1 million. Beginning in Q2, the net result that investors will notice from this change is that the equity accounting on our unconsolidated joint venture companies is likely to be breakeven or a little better as the germanium mining company has been the single largest underperforming investment in that portfolio.
Income tax for the first quarter of 2019 was a charge of $156,000 compared with a benefit in Q4 of $173,000. As expected, Q1 results included approximately $145,000 in tariffs as a result of the 10% tariff charge on importing wafers into the United States from China.
For Q1 2019, we had a net loss of $1.1 million or a loss of $0.03 per share. By comparison, we had a net loss of $1.1 million again or $0.03 per share in the fourth quarter of 2019 and a profit of $2.9 million or $0.07 per diluted share in Q1 of 2018. It is worth noting that for Q1 of '19, were it not for the germanium company charges of $1.7 million, we would have been profitable for the quarter.
The share count in Q1 was 39.35 million shares. Cash, cash equivalents and investments closed at $34 million as of March 31. By comparison at December 31, it was $39 million. The primary reason for the decline is the new facility and equipment.
Depreciation and amortization in the first quarter was $1.5 million, and capital expenditures were $4.2 million. Account receivables net of reserves were $19.5 million at March 31 compared with $19.5 million at December 31, 2018.
Net inventory at March 31 was $53.0 million compared with $58.6 million in the inventory at December 31. Ending inventory consisted approximately 41% in raw materials, 52% in work in progress and only 6% in finished goods. As we noted last quarter, the reduction in the inventory is a focus for us in 2019. With relatively low revenue, we decreased inventory by almost $1 million in the quarter, with the rest of the decrease resulting from not consolidating through our gallium company. With our programs we have in place, we would expect to be able to drive it below $50 million and perhaps a bit more over the coming year.
Before we conclude, let me briefly discuss the use of cash in 2019. Our primary expenditure will be focused on the completion of the facility-related items for which we expect to spend approximately $21 million over the course of the year or an additional $16 million over the balance of the year. Some of this cost will be offset in our cash balance by a reduction in inventory, as I've discussed, as well as our expectation of returning to positive cash -- positive operating cash flow.
Also as a reminder, the current facility in Beijing has considerable value that we will be able to monetize in the future.
Okay. This concludes the financial review. I'll now turn the call over to Dr. Morris Young for a review of our business. Morris?
Morris S. Young - Co-Founder, CEO & Director
Thank you, Gary. The demand environment in Q1 was largely what we expected as a result of a general economic slowdown around the world, including semiconductor industry, plus the combination of trade tensions, weakness in the LED market, a slowdown in the growth in the data center market as well as inventory rebalancing at several of our large customers. In short, the demand environment was weak.
During this time, we used the opportunity to focus on the fundamentals of our business and concentrate effort where we believe we could make meaningful improvements that will provide both short-term and long-term payoffs.
As I noted last quarter, we have 4 priorities: first, to drive improvement in our gross margin. In Q1, despite a sequential decline in revenue, the positive shift in product revenue mix coupled with good discipline in our manufacturing group enabled us to achieve better results. Going forward, we believe that there's more leverage in the model. We will have an increase in depreciation, but our underlying market is expanding, and we believe this will lead to a higher production volume that can absorb this increase.
Second, we're committed to disciplined use of our cash. As Gary mentioned, we will continue to reduce inventories, scrutinize our expenditures and again align our capacity expansion with market conditions.
Third, we continue the improvement work of assigning -- assisting and supporting our customers through the transfer of our production to our new facilities. I'm pleased to report that the relocation is on schedule. In addition, the vast majority of our customers, including all our large customers, are now qualifying our Dingxing facility. The next important phase is working with them on a schedule to ramp up their acceptance of shipment from our Dingxing facility over the course of the year.
Our goal is to have a large majority of the customers' revenue for gallium arsenide and germanium coming from the new facility by the end of the year.
Our first focus is innovation. As we said many times, we continue to set the pace in our industry for low-EPD characteristics in both gallium arsenide and indium phosphide. In fact, we have been unrelenting in our pursuit of tighter specification for both materials. In Q1, we saw a meaningful return of that investment. We believe our competitive advantage in our low-EPD indium phosphide contributed to our winning a large order related to 5G telecommunications infrastructure.
I would talk more about this order in a moment, but I want to emphasize here that among our peers, there is a tangible difference between vendors. And in applications where low EPD is a critical spec, AXT continues to differentiate itself.
Now let me turn to our markets. Q1 was a solid quarter for indium phosphide. In fact, it was the second largest indium phosphide revenue quarter in AXT's history. It is also the first time that indium phosphide surpassed gallium arsenide as our largest sales contributor. As I mentioned, we received a large order from a customer in Asia that we believe relates to 5G telecommunication infrastructure. As many investors who follow us know, historically, the vast majority of our indium phosphide revenue have come from data center, connectivity and passive optical networks. 5G represent a sizable new opportunity for indium phosphide, which is broad use in multiple points across the network, including small cells, fronthaul, backhaul and the data center.
As with any emerging technology, the industry drive towards 5G will likely to be lumpy, but it is driven by significant global economic impact, with 5G projected to enable more than $12 trillion in economic output worldwide by year 2035. As such, this is yet another technology application trend underlying our business that promises to be meaningful and prolonged.
Most important for AXT, it has begun. Further, we are in a strong position to be able to grow alongside the commercial adoption of 5G. We have the ability to add capacity quickly and more cost effectively than other substrate provider in this limited competitive field.
In the data center market, we continue to see some inventory adjustment going on, but we expect this contribution to grow modestly in Q2 over Q1. Customers are expressing optimism about the continued adoption of silicon photonics technology in cloud and large enterprise data centers as well as the transition over time to 100G and 400G technologies. In addition, the commercial adoption of 5G is likely to fuel data center upgrades. With new data intensive services, 5G networks will need to be able to move increasing amount of data between locations, resulting in greater performance and requirements from interconnects throughout the entire architecture.
In total, indium phosphide remains a strong driver for our business. The application, as I mentioned, as well as others on the horizon such as house monitoring, lidar, HBTs for 5G wireless devices provide a strong and diversifying foundation for current and future opportunities.
As always, we believe that growth in our indium phosphide business will be incremental and the application that we sell into will fluctuate in strength quarter-by-quarter. But collectively, we believe that we're building a powerful portfolio of opportunities tied to some of the most significant and transformative in technology trends of the next decades.
Turning now to gallium arsenide. Our revenue for both wireless and LED applications have been -- have seen setbacks in the recent quarters, and as expected, were soft in Q1. This was related to both a weak global demand environment and customer-specific challenges. As we head into Q2, we're taking a cautious view regarding our near-term expectation for our products.
However, neither market is going away. The LED market is sizable, and we have Tier 1 customers in Japan, Europe, Korea and Singapore. Though it is difficult to predict the exact timing of a recovery, LED devices are fundamental to a wide variety of infrared sensors and high-end lighting applications. In addition, semiconducting gallium arsenide wafers are used in VCSEL for 3D sensing. The introduction to Android phones with this capability could provide us our first entry point into laser-based sensing late this year or in 2020.
Now before I hand the call back to Gary for Q2 guidance, I want to say a few words about our raw material business. As Gary mentioned, in Q1, we took steps to reduce our majority ownership in Ji-Ya, a gallium-based raw material company. We also rolled off our partial ownership of Tongmei, a germanium-based raw material company. Both of these companies have faced significant business headwinds over the last several years as a result of depressed market conditions and have seen a drag on our overall results.
In addition, both are partially state-owned in China, which means that we didn't have the same level of influence in making changes that could have resulted in their improved performance. All our joint ventures have strategic importance to our business in providing a source of essential raw materials, visibility as well as some price protection from market fluctuations. But it is also important to us that they contribute positively to our results. We believe that action we took in Q1 will be beneficial to our business moving forward.
In closing, Q1 was an important quarter for AXT. We are building a strong fundamental foundation for growth in our indium phosphide business this year. In addition, our technology innovation continues to position us well for strategic applications across our portfolio. We also continue to execute the relocation of our facility on schedule and with positive customer qualification results.
Finally, we're taking the opportunity to strengthen our financial structure by reducing inventory, being careful of our spending, focusing on gross margin improvement and making appropriate adjustment in our joint venture portfolio. We're excited by the significant technology trends that are likely to drive growth in our business over time and we believe that our focus on fundamentals of our business model today will provide positive returns as the demand environment improves.
This concludes my prepared comments. I will turn the call back to Gary for our second quarter guidance. Gary?
Gary L. Fischer - CFO, VP & Corporate Secretary
Thank you, Morris. As we discussed, we do expect a moderate improvement in business conditions in the second quarter. As such, we expect to see revenue in Q2 of between $23.5 million to $24.5 million. We believe our earnings per share in Q2 will be in the range of $0.02 to $0.04 based on 40.0 million diluted shares outstanding.
Okay. This concludes our prepared comments. Morris and I will be glad to answer your questions now. Sarah, the operator?
Operator
(Operator Instructions) Our first question comes from the line of Richard Shannon with Craig-Hallum.
Richard Cutts Shannon - Senior Research Analyst
Let me ask the first question on the guidance here. I just want to make sure I caught the revenue numbers here, $23.5 million to $24.5 million, is that correct, Gary?
Gary L. Fischer - CFO, VP & Corporate Secretary
Correct.
Richard Cutts Shannon - Senior Research Analyst
You call that moderate improvement. It seems like a fairly significant one, I guess. So I guess, I wonder if you could help us understand the moving parts within the segments you talk about both not just substrates or raw materials, but understanding indium phosphide and gallium arsenide. It seems like you're talking of indium phosphide quite positively, but less so in gallium arsenide, and it will be hard to kind of fit those, especially given that we've lost some revenues from raw materials given your accounting change in the joint venture. So help us kind of fit those together if you would, please.
Morris S. Young - Co-Founder, CEO & Director
So Richard, let me chime in here. I mean, so -- first of all, you've got to understand what happened to us in Q1. The Q1 was every segment was down, germanium was down, gallium arsenide for both LED as well as wireless was down and raw material was down big time. Only shining star was indium phosphide, okay? Going forward for Q2, indium phosphide, we expect it to be strong again. Gallium arsenide in LED, we start to see some movement. I think it's going to be better than Q1. Wireless, still be about the same. But germanium is not because the market is down, because in Q1, don't forget, we have the Chinese New Year. And so we had a shutdown partially for the quarter. And so I think germanium should return to normal, but it should be better than Q1 for sure.
Richard Cutts Shannon - Senior Research Analyst
Okay. And it seems, based on that, that indium phosphide has to grow significantly relative to the other ones to make this fit? Is that a fair statement? Or is gallium arsenide growing more than I would guess?
Morris S. Young - Co-Founder, CEO & Director
Indium phosphide should grow very nicely.
Richard Cutts Shannon - Senior Research Analyst
Okay. Well, impressive, good to see that indium phosphide is doing well. How should we think about gross margins for the second quarter? Revenue growth in indium phosphide doing well, suggests it should improve nicely. I haven't tried to fit the EPS number to revenues yet, but it seems like you're implying it won't grow that much. Wonder if you could give us some help there, please?
Gary L. Fischer - CFO, VP & Corporate Secretary
Yes, we see it trending up. But the volume is still sort of below our run rate for most of last year. And indium phosphide.
Richard Cutts Shannon - Senior Research Analyst
No, no. But I mean the overall manufacturing volume, yes.
Gary L. Fischer - CFO, VP & Corporate Secretary
So yes, we think it'll improve and it's going in the right direction. But we don't see it as a huge jump. We wouldn't suggest people should expect a big step up, but it will trend up.
Richard Cutts Shannon - Senior Research Analyst
Okay. That is helpful. Let me go into a couple of other questions here. I guess, first of all, on the facility qualification, you made some comments regarding that. If you could give us a bit more detail about that, especially given or relative to your major customers and for the gallium arsenide one specifically and to the extent to which those qualifications can help you get into the 3D sensing market in a bigger way next year.
Morris S. Young - Co-Founder, CEO & Director
That's actually 2 separate questions, I think. 3D sensing has a market demand issue. I think -- we think it's not as robust as we expect it to be or the market was not very strong demand. And obviously, with our new facility in place, that should help us be able to penetrate in comps. But I think our new facility qualification, I should say, all our major customers have received qualification samples, and they have -- so far so good, there's no bad news. And in fact, a few of those largest customers have already qualified. They just want to see a good ramp up. In other words, they want to take portion of their production from the new facility and the remaining still from our old facility, and hopefully, that we can hold their hands. And over the next quarter or 2, they'd feel more comfortable with our deal and renew for their new product on the new facility and they will shift all to our new facility. That's our goal.
Richard Cutts Shannon - Senior Research Analyst
Okay. Maybe I'll ask you a number or a question here more quantifying that trend here. Can you just give us a sense of how much your output, your sales was coming from the new facility? And then what kind of percentage we should expect end of the year?
Morris S. Young - Co-Founder, CEO & Director
Well, right now, the percentage of revenue coming from the new facilities is relatively small. It's probably 15% to 20%? We expect -- we hope that the vast majority of our customers will take our product from the new facility by the end of the year. But that's not totally in our control, I must say. I mean, we've given them samples long time ago, and nobody has given us really bad results. So they just have to go through their rigorous quality manual. So they have to do the testing, and they feel comfortable and [at best they turn] around. And obviously, we want to deliver as much as we can from the new facility. That will reduce our cost, because now we are operating from both sites. But nonetheless, the other silver lining out of this slow move to our new facility is that we will never fail our customers. In other words, we have to reassure our customers. If you, for whatever reason, your quality manual doesn't allow or you don't feel comfortable, we can always support you from our present facilities in Beijing.
Richard Cutts Shannon - Senior Research Analyst
Okay, that's good to hear. Last question, I'll jump out of line, related to your larger order. I'm not sure if I should characterize this as a telecom-oriented order of 5G. But maybe if you can tell us a little bit more about the specific device that it's -- or function that it's supporting and whether this is an order that's getting spread out over multiple quarters, are we seeing it in the second quarter at all, just kind of a little bit more detail there, Morris, please.
Morris S. Young - Co-Founder, CEO & Director
Yes. We think it's telecommunication related and is related to 5G. And this quarter, it should help us in Q1 in small portion and also in good portion in Q2. But whether we could have continued order in Q3 or 4, it's too early to tell.
Operator
Our next question comes from the line of Catharine Trebnick with Dougherty.
Chase Bunnell - Research Analyst
This is Chase Bunnell for Catharine Trebnick. So I just have a couple of questions here. So we saw a better margin improvement that is obviously good. Could you explain some of the dynamics around the improvement on the quarter?
Gary L. Fischer - CFO, VP & Corporate Secretary
Sure. A big factor in the improvement is product mix. As Morris pointed out, this is the first time in the company's history when the indium phosphide revenue was greater than the aggregate of the gallium arsenide revenue. So it may switch back and forth as we go forward, because gallium arsenide was much lower than normal in terms of the last couple of years on a quarterly basis. So we like indium phosphide because we have little bit higher gross margin from that product line. And so it helps to lift the whole company. And because of this, not only the 5G order, but in general, indium phosphide was strong for us then that helped in terms of product mix. Secondly, raw material prices have been jumping around a bit. But in general, a couple of the products, particularly germanium, we saw the raw material price come down some. And that again helps our margin. And thirdly, we've been working with our manufacturing managers on reducing inventory, but that's also had a spillover effect where they just sort of have a higher consciousness level about utilizing the company's materials and assets and goods. And so they were pretty efficient in Q1 on their spending rate. So those are the 3 things that allowed us to see the margin go up. So...
Chase Bunnell - Research Analyst
And another one kind of on the 3D sensing business. I know you talked a little bit about it. But you said that there is not as -- you're still feeling like it's not as robust as you expected. Are you seeing any improvements with customers at all or any improvements in kind of the business in general, which customer dynamics or relationships you're pursuing at all? Or is that something that still is -- you're struggling with?
Morris S. Young - Co-Founder, CEO & Director
Well, we know that 3D sensing is on the horizon on a lot of Android phone makers. And -- but if you look at some of the product launched, both Samsung, Huawei sort of presented to market, I see only a few models, which carries this 3D sensing for face identification. So I'm not really that optimistic that the 3D sensing is going to come on very strongly. However, 3D sensing not only can do face ID, but also for augmented reality to measure up your furniture, or in other words, we're all facing VCSEL. That could bring a strong opportunity, but we believe that development is still in its infancy. So the market, I think, is developing slowly than we expected.
Gary L. Fischer - CFO, VP & Corporate Secretary
But that's not to say that we don't think that it would be significant as we go forward. It's just taken -- it's not because of AXT necessarily, but the whole 3D sensing VCSEL market has been kind of disappointing to everyone in the food chain, including AXT. But Morris does believe, and of course, since he's my boss, I believe it, too, but it's going to be a significant contributor to AXT. It's just taking longer for the market to get there. But we're ready, we're locked and loaded. We've been working on the low EPD. We have very good low EPD. And so we think it's going to be a significant element of our business story, if you will, in the future. Right now it's a little bit of a wait and see.
Chase Bunnell - Research Analyst
Okay, that's fair. And then what on -- what kind of on -- other than just technology catching up, what other milestones would you like to see in that area that you could talk about?
Gary L. Fischer - CFO, VP & Corporate Secretary
You mean in terms of 3D sensing?
Chase Bunnell - Research Analyst
Yes. If there's any.
Morris S. Young - Co-Founder, CEO & Director
Well, I mean, we are on the bottom of the food chain. We don't make the decision on what each cellphone makers are emphasizing their developments on. We understand from this big fruit company in Silicon Valley, they say 3D sensing is going to be a main focus of their future development, and we took their words. And there is a lot of market study saying 3D sensing is going to be used in augmented reality, virtual reality as well as artificial intelligence and...
Gary L. Fischer - CFO, VP & Corporate Secretary
Car sensors?
Morris S. Young - Co-Founder, CEO & Director
Yes, car sensors, autonomous vehicles. And I believe those studies are correct. It's just the timing of adoption. We didn't expect this 5G coming out on to our lap so quickly. We see it. We know this will come, but we cannot predict when. And we don't know how big the market is going to be, because we are on the bottom of this food chain.
But we have made the fundamental soundness in our business models that whenever this opportunity comes, we'll capture it.
Gary L. Fischer - CFO, VP & Corporate Secretary
You are kind of asking a cosmic question, which is when will 3D sensing catch on fire and what we would like to see as milestones is it would become more popular, more demand, lower pricing, because it maybe started up costing too much on the -- from the [one] phone. But we know it'll happen. It's just -- no one disagrees in the food chain. It's just taking longer. So...
Operator
(Operator Instructions) Our next question comes from the line of Hamed Khorsand with BWS Financial.
Hamed Khorsand - Principal & Research Analyst
First off, could you just talk about this 5G order and was this the cause of having the extra 10% customer in the quarter? And given that you're going to have less raw material revenue, is that also the cause of why your revenue is so significantly higher in Q2 and by what magnitude?
Morris S. Young - Co-Founder, CEO & Director
Yes, it will be our 10% customer, I believe. But what's your second question?
Hamed Khorsand - Principal & Research Analyst
In Q2, because you are going with less raw material revenue, right, because of this whole transition you're reporting?
Gary L. Fischer - CFO, VP & Corporate Secretary
(inaudible)
Morris S. Young - Co-Founder, CEO & Director
Well, actually it's relatively small. I mean, their contribution to our revenue in Q1 was only $200,000, I believe. So if we don't consolidate them, it's not going to make a whole lot of difference.
Gary L. Fischer - CFO, VP & Corporate Secretary
But historically, it was greater.
Morris S. Young - Co-Founder, CEO & Director
Yes, historically.
Gary L. Fischer - CFO, VP & Corporate Secretary
But in Q1, it wasn't that big.
Morris S. Young - Co-Founder, CEO & Director
So yes, you're right, I think the substrate is recovering nicely, I believe.
Hamed Khorsand - Principal & Research Analyst
Okay. And then so I'm also trying to get to how much of this growth is in indium phosphide is coming from data center customers or is some of this growth coming from other 5G and telecom orders that you're seeing tacked on to this?
Morris S. Young - Co-Founder, CEO & Director
Yes. So I think, as I said before, I mean, to answer that question, you've got to understand what happened in Q1. And as I said, Q1 in every category was bad. Germanium substrate was not so good because of the Chinese New Year. They have less [several] launches and demand is soft. And Q2 is going to see recovery. Wireless Q1 was soft. Q2, we think, it's going to be modestly improved, but not a whole lot of improvement. For LEDs, we're cautiously optimistic. I think LED, we feel, maybe is our race to recovery. So we project that Q2 should be better than Q1 for LED gallium arsenide. Yes, indium phosphide will be much better than even Q1 is. So I predict indium phosphide should have yet another record quarter in Q2.
Hamed Khorsand - Principal & Research Analyst
No, I understood that. I was asking if this is really just all related to data center demand coming back.
Morris S. Young - Co-Founder, CEO & Director
No. Actually we model it that data center is actually -- could be sort of flat compared to -- or improve slightly than Q1. But the majority is actually coming from this 5G infrastructure. And the other phenomenon we also observed was that because of these order from Asia for 5G infrastructure build, we're now seeing a number of other customers are buying indium phosphide-related products, and they are all putting rush orders. So we think they're probably related to this infrastructure build, although it's our customer and its customer's customer, so we don't know whether they are definitely related to this particular customer or it's just 5G is...
Gary L. Fischer - CFO, VP & Corporate Secretary
Taking off.
Morris S. Young - Co-Founder, CEO & Director
Taking off.
Hamed Khorsand - Principal & Research Analyst
That's what I was trying to get down -- get to. And then lastly, on the inventory comments, are you reducing your finished goods? Or is this all raw materials that you're expecting to come down?
Gary L. Fischer - CFO, VP & Corporate Secretary
There's not a lot to reduce in finished goods, because it's only 6% in the inventory in the recent -- December -- March 31. But yes, the main dial is to reduce the raw material that we bring in. So we are working with our guys in sort of MRP type fashion to plan the resources needed a little bit more tightly. So -- but secondly -- we're not giving any hard numbers, but we do have a bit of an optimistic -- we think things are going to trend up in terms of volume. So it's much easier to reduce inventory if you're building a lot, because you can use step up.
So those will be the reasons, yes.
Operator
And thank you. We have no further questions in the queue at this time. I would now like to turn the call back to Dr. Morris Young, CEO, for any further remarks.
Morris S. Young - Co-Founder, CEO & Director
Thank you for participating in our conference call during Q2. We'll be presenting at the B. Riley FBR Annual Investor Conference in Los Angeles on May 22 as well as the 16th Annual Craig-Hallum Institute (sic) [Institutional] Investor Conference in Minneapolis on May 29. We look forward to seeing many of you there. As always, please feel free to contact me, Gary Fischer or Leslie Green directly if you would like to meet with us. We look forward to speaking with you in the near future.
Operator
Ladies and gentlemen, thank you for participating in today's conference in. This does conclude today's program. You may all disconnect. Everyone, have a great day.