Hi everyone, it's my privilege to tell you about Alkane Resources. We're a mid-tier Australian gold company. We completed a merger with Mandalay Resources earlier this year, which gives us three operating assets: the Tomingley mine in New South Wales, which is going to do 75,000-80,000 oz this year. It pours doré. The Costerfield mine in Victoria, which does a gold concentrate, a gold-antimony concentrate, and a gold concentrate. It's going to do between 45,000 and 50,000 oz this year. Björkdal in Sweden, which does 40,000-45,000 oz this year. We've got a very strong balance sheet. We've got circa AUD 160 million in the bank, with another AUD 15 million worth of bullion. These are Australian dollars. We have listed investments worth AUD 15 million as well.
We're debt-free apart from our equipment finance, and I'd like to talk you through the prospects for the rest of this year and what we're looking to do with further development. We've got pretty good institutional coverage. Some of that's North American, some of that's Australian. I'd certainly encourage you to look up to the research. The broad valuation ranges from AUD 1.40 a share to AUD 2 a share, depending on mostly people's view of gold price, to be honest, going forward. This is our guidance for this year. We're going to do pretty much 160,000-175,000 oz a year, equivalent production. You can see that the antimony is driving 800,000-900,000 tons of contained antimony within that. All in sustaining cost, we run it about, for people interested in US dollars, we run it about $1,600-$1,650 at Tomingley at Costerfield.
That's equivalent at Costerfield. We run about $2,700,000 US at Björkdal. I'll talk you through the nuance of each of that. A lot of the growth projects I'll talk you through as well, but the big growth at Tomingley is bringing some open cuts online. The big growth at Costerfield is drilling to expand our reserve. It's mostly sustaining CapEx going into our mine development at Björkdal. Last quarter we did just under 40,000 oz equivalents. It was a pretty choppy quarter because the Alkane attribution of it was only two months out of it. On an all-in basis, for the whole company across the three months, it's about AUD 3,000 an oz. Yes, we paid off our debt and a whole host of other things, so we're in great, great shape.
If we want to look ahead, this coming quarter we should bank AUD 45 million-AUD 50 million roughly. That is post-growth, post everything in the current quarter that we are in at the moment. Let us look at the asset Tomingley in New South Wales. It is in the central west. Great asset, been running since 2014. It has a satellite underground, and I have got a map to show you, called Roswell. It is about two and a half kilometres with an underground decline. It is an owner-operated mine, and it has seven years of mine life ahead of it, assuming that the exploration, which we expect to yield things, does not yield any more. A great asset and performing very, very strongly at present. If we look at areas of organic growth that we have, you can see the Roswell there on the left of your screen.
That's open at depth, and we're drilling at depth at the moment. You can see the area McLeans. We've discovered a new andesite, a new ore body within the andesite there at the moment. We already have defined resources underneath the existing mines, which are at Coloma and Coloma II. You can see the decline joining the two there together. What we're doing at the moment is moving the national highway, and that allows us to develop those open pits, particularly at San Antonio. That's upcoming growth for us is that work. When I talk about the cash going, that's post-all growth, post everything. We're in a very solid position, and this is the cornerstone asset of the group. Costerfield in Victoria, so about 30 km east of Fosterville, about an hour and a half's drive north of Melbourne. Very high-grade gold and antimony mine.
This has been running under Mandalay's ownership since 2009. You can see there the grades that we get. On an equivalent basis, it typically runs about 12,000-13,000 grams per tonne underground. Again, another owner-operated mine of ours, narrow vein. Typical mining widths are 1.8-2 m wide. The grades you see there are diluted grades. I'll show you some undiluted grades coming on. A lot of the focus we have at the moment is in the centre of the mine, in an area that we call Brunswick, and then Cuffley Deeps. These are typically 300-metre-long strikes that we retreat back on. We have four years in reserve there. We have another three years in resource. The mine has run for the last 20 years at that rate.
Replenishment is one of the big focuses that we have with the drilling that we've got ongoing. This is a pretty interesting area. This is high grade. As you can see, multiple ounces per tonne across half a metre or so. They dilute out to 1 oz-2 oz per tonne. This is very typical of this ore body and very typical of the region. Other names you're familiar with, obviously, Fosterville and then Southern Cross, very typical intercepts. Here is an area that we expect to be developing across to within the next 12 months. This will contain 50,000-100,000 oz, which is not a lot, but when you look in this mine's context, that's one or two years' life of the mine yet to enter our reserves. We really like this new area. It's about 350 m from existing infrastructure.
The other area is a parallel structure we call True Blue, about 2 km roughly to the west of the mine. Again, really interesting, really high-grade intercepts. It looks maybe a little more chute-like, but we're defining that at the moment. We're putting the better part of AUD 20 million of drilling into this over this coming period of time. By that coming period, I mean this financial year through to June. Really exciting. We quite like the opportunity that exists here at depth. We've basically mined this down to 650 m. Fosterville goes down well south of a kilometer. Here we end up being constrained pretty much by economics more than anything else in this region. Really exciting. The other thing I didn't mention was antimony. Costerfield is at the moment the largest supplier of antimony in the Western world.
Other projects, should economics permit and they come online, will surpass it. This has been the majority of the Western world's supply for the better part of 20- 30 years. So often overlooked, forms 6% of our revenue, but it's a material part of the business here. We sell that concentrate overseas from Australia. Björkdal in Sweden. This is up just under the Arctic Circle, just a touch inland from Skellefteå, near Bulliden, the original Bulliden mine. This produces a gold concentrate. Again, like Costerfield, it produces a 50% gold concentrate, and then it goes right through to several ounces per tonne from a flotation concentrate. No cyanide used at this operation. Geologically, quite interesting, around a marble structure, where you typically get higher grades under the marble and lower grades above the marble. It's mineralized typically over about 80 m vertical from that.
The interesting thing about this is this is tension veins rather than fractures, and so it's nowhere near as linear. It's vein swarms all over the place. Very, very interesting. We mine it at typically 1.3 grams per tonne, and we mill it 1.5 million tonnes per annum. This is our highest cost operation. The exploration here that brings in higher grade areas, like this scan that we see described here, which typically only has sort of 20,000 oz, that shifts economics. Oh, sorry, I didn't say there's another asset we have called Store Heden, which we're hoping to develop into a satellite operation to lift the throughput. Very interesting for us, great asset, and highly leveraged to the gold price. Like I said, about $2,700 US, we want to drive that down towards $2,000 over the next 18 months.
We're pretty confident of doing so. I want to tell you about a development project we have, Boda-Kaiser in Australia. This is better part of 15 million oz equivalent. Really interesting, two-thirds of this is indicated. The economics that I'm showing you there are AUD 4,600 per oz, so $3,000 per oz. Clearly, the economics get much better with this increased gold price, but I wanted to pick something that was around where the long-term averages are at present. That is a target that shifts and moves. What are we doing here? We've put 260 km worth of drilling into this. We've done a pre-feasibility study. The ore here is close to surface. The mineralisation starts at 10 m. Strip ratio on 20 million tonnes per annum that I just showed you is about 1.6-1.7.
There's potential for large bulk underground mining that we haven't included. We've got a very simple flow sheet, and we've got recoveries that show producing a copper cone of 25%. What are we doing here? This is our timeline. Nothing remarkable about this timeline apart from the fact we've already commenced. We're doing our baseline environmental studies and a whole host of other land access, power, water negotiations at present. Obviously, we're engaging with government and community. We intend to submit this for approval within 2027. That's an open-ended process, but typically one to two years in the state of New South Wales, which would see us doing our BFS late in this decade. That would enable construction and commissioning. We'd like to do a joint venture here, but honestly, it depends on what the future of the company is between now and then.
It's not an expensive process that we're embarking at the moment, but the dates of application inch ever closer, and therefore the increasing value to us as a company comes ever closer. What are we going to do for the rest of this financial year? Clearly delivering on production and consolidating the costs. We have a very strong record in both our businesses as delivering on production. Alkane Resources has only ever missed its guidance once in the last 13 years, and that was by 2,000 oz on the bottom end of guidance. We don't intend this year to be the next year that we do that. We will be somewhere in the 160,000-170,000 oz range. At this gold price, AUD 6,000 and $39,500, the cash flow generation is quite remarkable.
A couple of hundred million AUD this year, more next year, more the year after that. It's just the way it is when you're in production and you don't have a lot of development occurring. We're going to keep expanding the mineral resources at all three mine sites, and that is at Costerfield. That's the new mining area referred to. At Tomingley, that's moving the higher to let the open cuts come online. At Björkdal, we're going to lift the mining rate. At Botokaisa, we're going to keep doing those project applications. As well as that, of course, our balance sheet will keep growing. We would very much like another inorganic growth opportunity. We've got good growth in the pipeline. What are we looking for there? We're looking in Australia, New Zealand. We're looking in Canada and the U.S. We're looking in Scandinavia.
We're looking at mines already operating or are available to develop in the 70,000-110,000, 120,000 oz range. If it's a development project, we're avoiding permitting risk and looking at things that can be built by 2027. We're actively engaged. Mandalay was engaged with parties. We were engaged with parties. We continue to engage with those parties, and we'd very much like to keep moving and growing. Our liquidity has already grown. Now we typically trade AUD 6 million-AUD 8 million a day in terms of cash, so larger funds can get in and out of our business. As a company, both Mandalay and Alkane combined board, we have met the objectives that we set out. Anyone that was here when I last spoke in Zurich six months ago, since then, the market cap of both companies has doubled. The liquidity has gone up 500%.
Our cash generation is going gangbusters. We're in a really, really good shape, and we continue to be the world's largest producer of antimony. If anyone is a technical analyst and they want to screen us against people, they will still find us discounted and cheap versus our peers, particularly if you compare any metric. Cash build. Look at our quarterly. In January, if I'm wrong, email me. I'll send you a bottle of wine if I'm wrong. If you screen us on a dollar-per-revenue basis, on a cost of production, net cash generated, we will screen much cheaper than our peers. That is cool because one day, eventually, the sheer volume of cash we're generating will win out, and that will be fantastic. I invite you to chat more with us, look us up online, and get on board.