Lucara Diamond Corp. (LUC) Earnings Call Transcript & Summary

Good morning, ladies and gentlemen. My name is Sylvie, and I will be your conference operator today. At this time, I would like to welcome everyone to Lucara Diamond 2023 Year-End Results Conference Call and Webcast. [Operator Instructions] Mr. Lamb, you may begin your conference.

Thank you very much, Sylvie, and welcome, everybody, to the Lucara Diamond Q4 2023 results, it's actually our year-end call. I'm on the call with me, I have Glenn Kondo, the company's CFO; and John Armstrong, our VP Technical Services. We'll just jump straight into it. First slide is obviously the cautionary statement. Please feel free to read through that at your leisure. Specifically looking at the year-end highlights. Obviously, there was an interesting year for the company. Total revenue was $177.4 million. This was in line with our revised guidance on the sale of 380-odd thousand carats through the 3 sales mechanisms, which we have. Total cash flow at $63.4 million and operating costs of $28.75 a tonne processed. That's actually a really good number; slightly higher than what we had last year, but in a Botswanan inflationary environment, we benefited quite a bit on that one from exchange rate depreciation of the pool against the U.S. dollar. I think the big highlights of the year is obviously the recovery of some very special stones. The 1080, now called the Eva Star, which was our fourth stone over 1,000 carats recovered since we started production. That came out in August of 2023, and we can touch on -- I'm sure somebody will ask a question about that. It's currently being analyzed and we'll most rightly look to put a plan for that stone sometime in 2024. Now I'm totally invested in the underground project, was $101.3 million. Most of that focusing on the shaft sinking and then towards the -- and the grouting programs and then towards the back end of the year, getting into the lateral development at the 670 level, and we have some pictures on that. I think from a very important aspect for us is the environment in which we have our employees work. Another very, very safe year for us with 0 LTIs and 0 reportable environmental incidents. Overall, we were in line with our revised guidance, and I'm sure we can touch on later the revised guidance, but more important to look forward to what we're planning on achieving in 2024. One thing that the resource has continued to do is ongoing delivery of specials, 602 specials recovered during 2023, including 22 stones larger than -- 105 of those being larger than 300 carats, which is in line with what we've seen previously. And again, an indication of the reason why we're going underground and what we can expect. The one, almost post the end of 2023 -- or post the end of 2023, tried to get it done in 2023, was the execution of the amended project financing package. I'm going to hand off to Glenn to look at that in a couple of slides. And what was announced earlier this week is the renewal -- not the renewal, the reentering into an agreement with HB Antwerp specifically with regards to the qualifying diamonds that are larger than 10.8 carats. Moving on. I'm not going to spend too much time on this one. Essentially, the adjustments to the lender package were really around movements between the term loan and the working capital's facility. But the total debt package remained at $220 million as it was originally compiled in 2021. We have seen a lot more focus on how we will be managing this moving forward. At the end of the year, we had drawn $125 million out of the project loan facility, $15 million from the working capital facility, and we had actually drawn $50 million from the standby guarantee provided by the lenders as well. Now one of the important components that we're going to focus on this year is filling up the cost overrun reserve accounts or the cost that currently sits at $36.9 million as of the end of 2023. We want to get that done. That gives us protection for the project but also then anything which we would get from largely exceptional stones will then flow into cash flow versus flowing into the cost. One of the key areas, and I don't think we touched on it in too much detail in here, is how we are planning to fill the revenue gap and that's specifically comes up in 2026, 2027 as we start to process more of the low-grade stock raw material, but we can touch on that a bit later, actually. Moving on then specifically to the underground project. As I mentioned, $101.3 million invested in 2023. That is on the sinking of the production shaft and the ventilation shaft. And both of those were at the 670 level, which is 348 meters below surface, or below collar, where the lateral development was done and that lateral development is now being finished. John, correct me, how many total meters of development there?

About 230 meters total development on the list.

Thank you. So, that's now been completed. And when we get into the pictures, any water which you see is actually drilling water. It is extremely dry down there. And I think that is testament to the quality of the work which was done further up in the shaft as we mined through the [ tabala ] sandstones and aquifer there. So really seeing the dividends coming from the work which was done in the earlier part of 2023. Other activities on site were the commissioning of the temporary bulk air coolers. Actually, it's fantastic. You go to site, it's 40 degrees outside, you go down the shaft and it's on average anywhere around the 20-23 degree Celsius. So we're seeing the effect from those temporary bulk air coolers and work is progressing on site on the main bulk air cooler that would be running during normal operations. Additional to that, a lot of the major engineering packages are now almost complete, and we're really working through 2024 on the RFQ and getting the lateral development contracts on board for when we get to the bottom of the shaft, which is going to start to really be a focus towards the end of 2024. Thanks, John. Looking into 2024, we are planning on spending up to $100 million again on the shaft sinking lateral development. We have started sinking again actually at, I'm going to say, a fairly rapid rate in the production shaft. Where we stand at the moment, the production shaft is about 413 meters below collar. So very, very good progress being made on the production shaft. Most of the lateral development was conducted from the vent shaft. So the vent shaft is now going back into sinking. And within the next 10 days, both shafts -- approximately 10 days, both shafts will be sinking while we just do a required rope change. But no major issues there, things are actually moving in a very, very positive direction with regards to the shaft sinking. In terms of the planned grouting event, that was taking the learnings from back end of 2022 into 2023. We are setting ourselves up for a very positive sinking through the Mea. This is the aquifer that sits just above the granite basement. And if anybody has any questions, John can -- he'll be very happy to answer those in the Q&A period. We are also finalizing the procurement of the underground equipment. This is specifically for the lateral development and the commissioning of the permanent bulk air cooler system will also happen during this year. Just jumping into 1 or 2 images. So you can actually see, so the round section -- I don't know if we can point, but it's the vent shaft, all that lateral development has now been completed. But we wanted to show a couple of pictures, just facing in different directions, as to the quality of the work which is actually being done. I want to draw your attention to view 3, the view north, where we've got -- you can actually -- if you zoom in there, you'll be able to see the wire mesh, the support and how dry it is. So very happy to see that. This is going to be our first drilling or the drilling horizon, which will be closest to the surface and ground conditions appear to be very good in those areas. Moving on -- just from the production shaft, you can see some of the civil works happening there, the [ shock feet ] of those areas. That is currently what has been completed in the vent shaft before they start sinking again. But the quality of the work being very, very good as we move on. So moving on, I'm going to hand over to John just to take us through diamond recoveries through 2023 and what we can expect for the underground. Thanks, John.

Okay. Thanks, William. Good morning, everyone. The purpose of this slide is just to reinforce that out of the plus 10.8 carat proportion of our production, we achieved between 60% and 70% of our revenue, and that comes from between 5% and 7% [indiscernible] specials historically. In -- since 2012, we've had 34 diamonds in excess of 300 carats. And as William reported earlier, we recovered our fourth plus-thousand-carat gemstone in August of this year. We've sold approximately 11 diamonds -- or actually, I think it's now 12 diamonds for in excess of USD 10 million. They represent in excess of $240 million of revenue, which is not modeled into the resource, and it's not modeled into the diamond price assumptions going forward for the underground. The image on the lower left shows the cumulative carats by year. You can see that in 2023, we had recovered approximately 20,000 carats of specials from 602 individual stones, 22 of which were over 100 carats and 5 over 300 carats. What I would draw people's attention to is that, for the first time in a couple of years, we had a more mixed production going through the plant with approximately 70% of the feed coming from the south lobe, and 29% to 30% coming from a combined center and North, hence, the lower volume of specials, that's in line with our expectations around the size distribution models for each of those lobes. I think that something that we'll point out on this slide and the next slide is that in the first years of underground production, predominant ore type to go through the plant will be the EM/PKS which has the coarsest size distribution of -- between it and the MPKS. And we anticipate that in those years, we'll see about a 50% increase in the volume of plus 10.8 carats recovered as shown on the image on the right. Based on our historical production, we can see that about 30% of the plus-10.8 production comes from diamonds in excess of 100 carats in weight. That's based on historical production. We can see the image on the lower left shows the historical split between 2015 and 2020. We can see what the model predicts for the remainder of the life of the mine. So that's the underground and the open pit. And we can see the underground model trending there. So we can see that going forward, about 30% by volume of plus-10.8 carats will be in excess of 100 carats in size, and that's a significant factor in driving the economics of the underground and our expectation around the continued recovery of large, high-quality gemstones. I think the other point I was going to make is that for those that like to keep track of these things, the 5 diamonds in excess of 300 carats last year: one weighed in at 862, one at 342, the 1080, a 692- and a 474-carat stone. So some pretty significant recoveries as we go forward. This slide just reiterates some of the points that I've made, but it also shows an image of the 1080 carats on the left and the 692 carat stone on the right. My comments around the 1080 would be the way you see on the left side of that particular diamond is an area which has a series of inclusions. This particular diamond measures about 82 millimeters at its long axis. We did have 111 carat diamond come off that left side of the diamond. It was broken in the bin before recovery in the XRT machine. And when we put those two pieces together, if the length of that diamond is actually 871 meters in length. So it's actually one of the longest diamonds that we've recovered at Karowe. So I think the takeaway from that is don't focus on the left side of the image, focus on the right side of the image of the 1080, because it is a very spectacular high-quality type 2A white diamond.

I'm just going to jump in there, John. The 111 carat piece has already been polished and the quality of the diamonds coming from that piece, and it had lots of inclusion to smaller stones, but all decolor stones, which does give us a very good reference, very similar to what we saw from the 374-carat that was polished off of the Lesedi.

Moving on then through the year, we used the 3 sales platforms that we've been using for the past few years, a normal rough tenders. This is for diamonds, which don't qualify for Clara smaller than 10.8 carats. And most solely about 360,000 of the 390,000 carats is sold through Tender. So still a very important component for us. We had about 10% of our revenue generated from sales on Clara. That's in around the $15 million to $20 million mark. Clara is important for us, not just from a provenance perspective, but also gives us a very good window into the market, specifically on the Polished diamond side. And then as, I think always, the most important thing for Lucara is the recovery and sale of our plus-10.8-carat stones. As we announced earlier in the week, we have reentered into an agreement with HB. Having seen the quality of the diamonds which HB actually produces and having a much more detailed understanding of the actual business. We've re-looked at a lot of the metrics around which the contract is managed. The information used to drive the sales through the platform. And we believe that moving forward, the mechanism by which we can manage the information flow and what actually happens to our diamonds can be better controlled within the company. Just because this is one of our wholly-owned subsidiaries, we do have more information on Clara to date. We sold about $104 million worth of value through Clara, just shy of 58,000 carats. We are also looking to onboard additional third-party diamonds onto the platform, but we will look to see how best we manage the Clara platform and move this forward. Just in terms of our closing sales a lot of information on this slide that's easy if I just let you read it on your own. I did mention the 1080, that stone was named the Eva Star and you can see another image of that on the right-hand side there. But the slide here just gives a breakdown of where our revenues came from 2022 and 2023. And obviously -- we now look specifically at Clara, for example -- the volume of the carats sold, the revenue associated with that, that's obviously very contingent on the production mix, which we see coming through the overall process. I'm going to hand over now to our CFO, Glenn Kondo, who will take us through the overall operating highlights for 2023 and the fourth quarter. Glenn?

In terms of production, Q4 was a very good quarter for us. If you look at ore mined it's 608,000 (sic) [ 607,101 ]. That was well within expectations for the quarter. Ore processed at 704,000 (sic) [ 403,742 ] for the quarter was a very good result. In terms of tonnes processed, we had an average rate of 14 carats of CPHD, which results in roughly 98,000 carats recovered during the quarter. And that shows the continued strong carats recovered through the year. In terms of carat sold, we sold roughly 112,000 carats. That's largely due to the higher quantity of Tender that's sold during the quarter. There was a reduction in the plus-10.8 that we had during Q4 compared to the prior year. And you'll see that translating into the overall drop in revenue for the quarter. In terms of operating cost per tonne were slightly up at $32 (sic) [ $31.96 ] per tonne versus $26 (sic) [ $26.20 ] last year, and that's largely a reflection of the increased mining that we did during the quarter. And plus we have -- we've had high inflation in Botswana this year running at roughly 11%. And partially offsetting that was the stronger U.S. dollar to the Pula. In terms of revenue, we did $37 million (sic) [ $36.5 million ] during the quarter, and that's roughly $6 million down from the prior year. The lower revenue was driven by the reduction of the sale of 10.8 carats during the quarter. Roughly we're-- we were lower by roughly 1,200 carats for the quarter, and that's really due to the product mix that we had during mining in Q4 and also reflects the HB agreement where we had -- due to the termination, we had less goods transfer to very long sale to HB. In terms of adjusted EBITDA during the quarter, it was down by $11 million during the quarter. And the cost, this is a reflection of the cost increases that were due to inventory movements following an increase in diamonds sold in Q4 compared to the prior year. We also had higher production volumes also contributed to the increased operating costs during the quarter. If you look at the other main item in terms of the cost increase for the legal fees we had due to the termination of the HB agreements plus the rebased negotiations that contributed another -- additional billing [indiscernible] to overall costs. In terms of net income, net income last year was $7.1 million for the quarter, and this dropped to $36.7 million loss during the year. And what you'll see is a couple of large items here. We have recorded a Clara impairment. And what we did was we looked at the overall results for the past few years, and it is loss-making. So we look at overall potential book value for the asset for Clara. We came down to a book value of roughly $6 million, which results in an $11 million write-off during the quarter. The other big drop is for deferred tax. We had a onetime hit in terms of looking at the deferred tax rate. So we look at the effective tax rate for the life of mine, and it went from 35 -- to 32%-35%. And that reflects the forecast cash flows when we did the rebate model. So a higher tax in the future tax rate resulted in us taking a $22 million charge to the P&L.

It's the year end.

Just in terms of the year-end -- just in terms of the year-end in terms of the overall physical the one to look at is really the ore processed. If you look at it, we had a very good year in terms of ore processed. It's a record production year for Karowe, roughly 2.8 million tonnes processed during the year. Again, John went through the production profile it was split between South lobe 73%, 22% from the Central lobe and 5% from the North lobe, and that compares to 100% from the prior year. In terms of carats recovered, we recovered 395,000 compared to 335,000 so it's a 60,000 increase compared to the prior year. And that reflects the largely -- it's largely in the smaller goods in terms of the less than the 10.8s. That's what's caused the overall increase in carats recovered this year. And again, you'll see that reflected in the overall revenue that we're reporting. In terms of carats sold, we achieved $379,000 (sic) [ $379,287 ] compared to $327,000 (sic) [ $327,028 ] and the increase in diamonds sold again due to diamonds sold on Tender. Diamond sold HB were pretty much in line with the prior year. [indiscernible] In terms of revenue, we do see a revenue drop of $37 million, and the decrease in revenue reflects the change in the product mix with plus 10.8%. So there was a decrease in the amounts sold there. During '23, 26% of the carats we recovered from the Central lobe -- the North lobe was 71%, and the South lobe -- sorry, so South lobe was 71%, 3% from the North, and that compares to 100% from the South lobe in the prior year. If you look at adjusted EBITDA, adjusted EBITDA is roughly $32 million lower than the prior year, and that reflects the decrease in revenue of $35 million and pretty much all the other costs were in line with the prior year. In terms of net income, there was a drop of $61 million compared to the prior year. That does reflect the EBITDA decrease of $32 million, and we did have the impairment for Clara coming in at $11 million. And we also had a loss on the swap. We currently have an interest rate swap in place for the duration of the principal of the project. And what we found this year is that the forward-looking curve is decreasing interest rates. What that does when you do a market-to-market it results in a change from a profit last year to a drop this year. And that resulted in a $12 million decrease in overall net income.

Thanks, Glenn. One thing I also wanted to just point out when we look at the financials, and this talks specifically to the quality of the asset. We -- when we announced the rebase in the back end of Q2 2023, we stopped drawing from the term facility. And we look back at the $101-plus million that were spent on the underground, a significant amount of that was actually spent from operating cash flow. And for us, that does demonstrate again the strength of the revenues, even though those revenue numbers were down, the operation can continue to support that. And I think when we look at the $683 million estimated total CapEx for the underground and only a $220 million term facility, of which $190 million is the actual term loan. It does again show the quality of the asset in our ability to fund that from working -- working cash flows. Just looking at the 2024 guidance, these numbers were press released last year, so I'm not going to read through everything. I think the real focus for us this year is going to be on the total diamond revenues. There will be -- compared to last year, the shipments of goods to HB, there is obviously a translation into when we actually get paid for some of those, so that will flow into this year. But really, I think the numbers are pretty standard compared to what we've seen over the past 10 to 12 years. We are getting through the material in the bottom of the pit, more South lobe material. And that's really what translates into the higher revenue numbers. Thanks, John. One of the specific areas which we need to focus on through this year is really demonstrating the relationship that Botswana has with diamonds. It is becoming more and more important for us to focus on these areas, specifically with the external threats that we see from lab grown diamonds, et cetera. And for us, the most important thing for investors to -- of the very important things for investors to understand is the role in which we play in what has transformed a country from very, very poor in 1966 at independents to now one of the top 5 GDPs in Africa. And a lot of what we're seeing with the work which we're going to be doing with HB moving forward is going from what we see as aligning ourselves with the strategy that the government wants to put in place where they can see beneficiation of the diamonds. And that's the glitz and the glamor and that's where we start off on the left-hand side of the slide, but it's what comes from that. It's the employment, it's the ability to participate in gender-based violence and sports activities and education and really start to work with the local communities to drive, number one, first, listen, but then use what their needs and their requirements to drive our ESG programs. And I think we've really done a fantastic job in working with the local communities. We've set up and sponsored hardware stores, firms -- for farms, we've sponsored a goat farm, which had incredible results. They actually produced fodder. We're now seeing increased demand for fodder, which increases the quality of the livestock. And it's really for us listening to what is actually required from a cultural aspect. What do the Botswana people find as important and working with the Lundin Foundation, how can we best support the local communities to drive individual businesses. And this is an important component for us because even though we're going to be mining on the underground well beyond, I think, 2040, when the Karowe mine does eventually go into shutdown mode in a decade or twos time. We want to make sure that we've actually left sustainable businesses, which appeal and talk to the culture of Botswana. So just moving forward, under the -- we are signed up to the UN Global Compact. We have 10 out of the 17 goals to transform our world, which we are aligned to. And this slide really talks to how we actually align ourselves to fit in and I wouldn't say comply. We don't want to just say, well, we're compliant because complying means it's a box checking exercise. But we're actually driving value through the programs, et cetera, that we have. And the people that we have on site, the passion that they actually show for the programs that they're working on is evident when you sit down with them, then you can really see that they are making a difference in people's lives, and that's really where the importance comes when we start to look at our sustainability programs. So moving on to the last slide. There's a lot that makes us excited. From what we've seen, from what we've spoken about now, what we see in the press release, which I'm sure some of you have already seen, is that the resource never disappoints from when we announced the first 239 carat stones back in 2013, the resource has -- as we've mined in the Center, now the South lobe and the South lobe is this complete anomaly. When I was in Sweden recently, I mentioned that not in my lifetime, kids lifetime, et cetera, will there be another asset, the same as the Karowe mine in terms of just what it can produce. And the resources continued to show that even through 2023, and we expect the same at the start -- we've got a good start in 2024. The most important thing is -- for us is the development of the underground, and that's really going to be the focus. And that sets the company up. We can benchmark ourselves against the information that we've used to drive through the previous aquifers, and we use that to guide and manage our risks moving forward. In terms of the open pits -- as Glenn went through very, very strong operational performance, the guys that are running a plant running the pit are doing an exceptional job. And they are the ones that are really now driving the revenue for us to continue the underground development. In terms of the resources and the Lundin group support, this is one of those things where I think Lucara and really, the Lundin Group companies are very, very well positioned because of the support that we get from our major shareholder, the support and the guarantees that they have provided for the term loan, et cetera, it does position the company in a very, very strong -- very, very strongly for managing whatever we might see coming at us in the future. And even though it's the last point there, I think one of the key aspects is working with the government of Botswana, working with the Botswana people on sustainability, ESG and really creating an environment within the company where it's not just about mining diamonds. It is the most important thing. But I think as we move forward in demonstrating the value that mining actually brings and not just diamond mining, not just mining in Botswana, I think mining as a whole, the value that, that brings to the local communities and the places in which we operate. Thank you very much, Sylvie. If I can hand it back to you then for Q&A.

[Operator Instructions] And your first question will be from Raj Ray at BMO Capital Markets.

I have a few questions. I'll go one by one. First, on your Q4 revenue, is it possible to give us like a rough estimate of how much of that decrease in per carat price was a result of the mix versus diamond market condition and not having the HB agreement in place? And then on the HB agreement itself, is it possible to lay out what -- if there's any changes to the new agreement that you have in place, apart from what you already mentioned, having more control over the sales process and value realization. I have a few more questions after that.

Thanks, Raj, and good to hear from you. Obviously, the first question is it's not an easy one to answer. I think the volatility, which we've seen in the rough diamond market through 2023 was quite apparent. So as you mentioned, there were 3 specific factors that led to a lower revenue. The first one was when we provide diamonds -- because we stop providing diamonds to HB in September, October and into November, that obviously has a significant impact of when the revenue is received for those stones. because of the way the agreement is structured, they get an opportunity to assess the stones and when we have an agreement, then there's a certain time period before -- let's call it out our initial value for the stone is paid prior to them polishing and selling it. So that has an impact. How much of that was would be fairly difficult to quantify, but it may actually be as much as between 5% and 10%. If we looked at the market dynamics, prices from where we started off the year, we're still down by somewhere between 5% and 8%. And we recall -- we measure that in line with the regular Tenders which we were having at each quarter. So that's another 5%. And with us mining in the North and Center lobe in the first half of the year. I'll give you an example. On average, we will recover 140 to 170 specials per quarter. In the first quarter of last year, it was only 96. So that obviously plays quite significantly into the revenue generated in the first half of the year, which would have translated into lower numbers in the back end of the year. In terms of the HB agreement, obviously, there's a lot of confidentiality around that. I think the most important one is a reduction in the fee which we -- or the margin which we pay, that obviously adds direct value to us in terms of retaining money within the company. I'd say that is most probably one of the most important commercial factors. One of the -- and then in terms of the overall management, we now have steering committees we're looking at providing information to help them manage their business better, their flow of diamonds out into the market. But it's -- there's a lot of confidential information within the agreement. But I think, as I mentioned, the ability to understand their business and how we actually benefit from it is going to add significantly to us being able to manage what our numbers should look like moving forward.

Okay. That's great, William, thanks for that. I have a couple of co-operational questions. One, on your 2024 guidance in terms of lower profits, what split should we expect from the South versus the Central and the North? And the second question is with respect to the underground development, given that you have had some time to look at the whole scope of work, do you see any potential for accelerating the project or any cost savings? And also, how are your underground development rates stacking up right now versus your expectations?

Okay. I'm going to hand off to John just to go through the expected production mix for 2024.

Yes, thanks. I think the expected production mix for 2024 is going to go back to what we've seen in the period 2020 to 2022. So it will be skewed more to the South lobe. So anticipating over 90% of the carats to come from the South Lobe during 2024.

And then in terms of the underground development -- and this is what I love about underground. It's linear. You can't blast around 3 unless you've done 1 and 2 in sequence. What we are seeing is that the efficiency of sinking has improved dramatically. And John, if you want to jump in here. I think the -- when we go back to when they first started sinking there were the teething problems, et cetera, and it was taking them quite an extensive time to blast around. They started off doing 2 meter rounds. They went to 3 meter rounds. We're now doing plus 4 meter rounds in the shaft sinking and what was taking well over -- in some aspects, 60-70 hours, they can do that in under 23 or 24 hours. So we are seeing a significant improvement in the cycle times and obviously, the progress made per cycle time. So when we look at the production shaft, they -- I would say both of them have very, very high-performing teams in it now. When we got into the lateral development, there were, again, the learnings that you go through was the transition from the shaft sinking against the lateral development. So we do see areas where we can improve, and it's got to be in a -- almost on a day-by-day basis, you'll see improvements. And it's not -- we're going to make a day up. We're talking if we can make up 20 minutes here, but you make up 20 minutes, but you've got to do that 20 minutes. You save that 20 minutes 1,000 times during the sinking process. That's really where we started to gain ground. The schedule is very tight. I won't sort of say that there's loads of flexibility in the schedule. And I should have mentioned this during the presentation. So because we have such a tight schedule, the focus really is on where can we get better quality material to fill the revenue gap in 2026/2027, which was the result of the rebase. So we've tasked the guys on site with that they were really throwing some numbers out there. They are very, very nice numbers because it means that we can get more South lobe material in. It's a little bit early to speak about that. We are hoping to have something which we can message to the market early in Q2. And it's really running additional mine plans, et cetera, to see what we can do in the pit, and there's a couple of options there. But to gain access to additional South lobe material just as an [ infolk ]. So we don't see the drop in the quality of the material that the mole processes. And I mentioned quality of material because we have more than 10 million tonnes of material on surface. We've got plenty of materials process. And when we did some stockpile processing in November of 2023, it produced a fantastic run of special. So we know that the material is there, but we'd rather have a much higher level of confidence in what's going through the mole. And if we can get that from the pits, that obviously adds significantly to that.

If I can just elaborate a little bit, Raj, on the question about accelerating things. I think if you read the MD&A, you'll see mentioned that we have picked up time against the rebate in the ventilation shaft and the production shaft because we did some unplanned grouting in September is a little bit behind the rebase, but they've actually picked up quite a significant amount of time. Through 2023, we put a lot of effort into, as William said, understanding the cycle times and improving that. We've made changes to how do we introduce the concrete to the underground. We made changes to the shutter design for pouring of the cement liner. The crew has improved dramatically in the execution on the grouting events. We made some minor changes to the kibble design. So the kibble is what brings the rock up from underground. We've installed longer slides on the jumbo and cumulatively, all those things have added up to us being able to execute the cycle times at budget or better than the budgeted rates. So we've seen some improvement there. We're not -- we're taking those days, and we're putting them in the bank, and we're in -- at some point in time, there will be a decision about how -- what the schedule looks like, and that will probably happen through the back end of this year with an annual update to the mine plan. And ultimately, as we mentioned earlier, we completed the development on 670 level. There's lots of learnings from that as we break away from the shaft onto the level and the cutting of the station in the lateral development. And those lessons will be taken forward when we do the work on the 470 level coming up in the latter part or the mid part of this year. So all those things, as William mentioned, the schedule is the key, and that's the focus every day is ensuring that we don't slip and that we improve and try and pull back time as best can.

And lastly, with respect to the cost over in the facility, is there a time by which it needs to be fully funded for the $61.7 million?

Yes. Raj, we have to fill it by June 2025 and based on where we are in that time. . .

[Operator Instructions] And at this time, Mr. Lamb, it appears we have no further questions. Please proceed. There are no further questions at this time. Mr. Lamb, you may proceed. We are currently unable to hear you, sir. [Technical Difficulty] You may now proceed, Mr. Lamb, we have no further questions, sir. Please proceed Mr. Lamb. Ladies and gentlemen, this does conclude your conference call for today. Once again, thank you for attending. And at this time, we ask that you please disconnect your lines. Enjoy the rest of your day.