Doug Reddy
Analyst · RBC. Please go ahead
Okay. In addition to the production guidance that we have, I'll also mention that all of our minds are -- have been working on a program that involves continuous improvement as well as consumable reduction and group purchasing initiatives. All of that is above and beyond what we've put forward for our production and cost guidance. We've also doubled down on our adherence and reconciliation of mine plans benchmarking and productivity improvement work, which is all geared towards achieving and beating what we've put forward. Looking at the individual mines, mesquite in Q4. We were mainly in a stripping phase for Brownie and Vista East. That will ultimately contribute to the award going to the pads in 2023. Due to the emphasis on stripping in Q4, that means we had a relatively low number of new ounces going under leach in that period. And for 2023, we have adopted a new mine plan that'll see -- that we'll see less stripping and smaller pits in order to reduce cost at Mesquite. We continue with expiration and permitting work at Mesquite for mine life extensions. In Castle Mountain, in Q4, we were running with both run of mine and crushing and glomeration of the material going to the heat bleach pad. The plan is that we should be all going through crushing glomerations, so we'll continue working on increasing our crush and glomeration throughput. At the same time, as working on the Phase 1, we have been advancing our permitting on Phase 2 and met test work in support of the Phase 2 work, and I'll come back to that later on. At Los Filos, in Q4, we had a production impact related to a shortage of explosives that was caused by a strike at our explosive supplier. We also had some of the -- or that was coming from the Guadalupe open pit. It had a higher copper content, which meant that it had a reduced recovery over the leach cycle. So, we're now separating that to be able to leach that separately from the rest of the ore feeds. Excuse me. As we look at 2023, we continue mining in Guadalupe open pit and Los Filos open pit, as well as the Los Filos underground with 20% of the tons coming from the open pits. We will be suspending Bermejal underground, that's given the prolonged development period and the lower productivity than anticipated. Just to put it in context, we have developed down to the central zone five of Bermejal underground. We've accessed into it, and we've been mining from it, but we need to do significant additional development in order to have enough scopes in production at the same time to be able to achieve the 1500 to 2000 tons per day. So, in the meantime, we'll be looking at plans to be able to improve overall productivity and reduce the costs. And we'll also look at the timing for this higher-grade order to eventually be fed into a CIL plant. In Arizona, we had a longer than normal rainy season in 2022, and we relied on stockpile material more than usual, which meant lower grades go into the plant over an extended period. By the end of the year in Q4, we had an increase by our contractor of their mining fleet with an addition of 9777 and an additional six articulated dump trucks. And so, we had a higher total tons being moved as we worked towards removing -- returning back to our mine plan. In addition to the expanded mining fleet, we were also bringing in a second contractor who will come with 14 articulated dump trucks so that we continue mining at a higher level through the rainy season and have a stronger start once we come out of the rainy season this year. And we want to build up our stockpile significantly during the course of 2023. In Fazenda, the mine did very well in Q4 and for the year, open pit mining contributed to higher grades and tons overall, and offset the lower production that came from the underground mines this year. Throughput and plant recoveries at Fazenda were both above the overall plan and our expiration work at Fazenda continues to work on resource and reserve replacement. We also continued the expiration program in the Greenstone Belt between Fazenda and Santa Luz. At RDM, we were processing low grade dump material in Q4, but we suspended processing in mid-December as we waited for permitting of the additional material for dump material at RDM. And in January, we've restarted the init mining and we're using owner operated equipment. We also completed the TSF rays and we've begun permitting for a filtered tailing storage facility at RDM. Looking at Santa Luz, Q4 was difficult. We had lower throughput due to the hardness of the ore. We also had a high sulfur content and some of the ore that impeded our recoveries. And we also had to deal with the -- cyanide impact on the resin, which related to overdosing with cyanide --. Each time that happened, it happened twice. It takes the system several days to be able to recover. From that, and we have to regenerate the resin activity so it can perform properly again. So, I will note, the resin leach plant is achieving higher recoveries overall than, than were possible by previous operators using carbon in leach processing. So, it is working, but we still are working through some of the issues. By December, we had changed our blending strategy and we also adopted a new fragmentation plan in the open pit, and that's enabled us to achieve a higher throughput. And also, since year end, we've seen an increase in stabilization of recoveries as we've come through January and February. Moving on to Greenstone. Ultimately, Greenstone's going to become the cornerstone for Equinox. One of the largest goal projects in Canada. It's got a five and a half million-ounce reserve, annual production of 400,000 ounces and first production coming in the first half of 2024. Onto the next Slide. We are on budget and on track. The project is 70% complete at the moment, and the team has just passed 2.5 million hours with no lost time injuries. So, a good record. They've also had great progress as you can see in the slide, with several of the buildings being fully enclosed. Mining started in Q3 with four trucks and one shovel, and we now have four additional trucks coming, and getting ready for use. And the second shovel will be added in the second half of this year. We're 54% complete on the capital spend at the end of the year. And if you move to the next slide, you can see several more of the buildings. Four of the buildings are enclosed and heated, and next week we expect the last two buildings to be enclosed. The HPGR building is one of the two buildings that was just being finished off this coming week, and as well as the East End Mill building, which I'll note already has the roof on and the a lot of the claddings already done in the photos I saw as of yesterday. So, it's progressing really well. So just moving on to the next page, upcoming milestones for Greenstone. The main ones are the buildings being closed this quarter commencement of the ball mill installation. We will we'll start. In Q2, mechanical piping and electrical installation will be happening as we move inside the buildings. And all the equipment will be on site in Q2. In Q3, we're looking at pre-commissioning of the power plant and the crushing circuit. And by Q4 we're completing the TSF and the highly relocation will be completed, and the first half of 2024 will be in commissioning and first Gulf four. And moving on to the next page are other expansion projects include Castle Mountain, where we're -- we'll see an increase in stacking to over 45,000 tons per day going to the leach pads and production of around 218,000 ounces a year over a 14-year life. We submitted the permit application in March. We continue working through the process of permitting. We'll see environmental review, and public scoping scope happening in the first half of 2023. For Arizona, we're working on the feasibility study, which involves mining from both the Bermejal underground. At the same time, as we're mining from open pits. That feasibility study will be wrapped up in Q2. As Greg noted, we have received permits for three portal locations. We have selected one for the initial ramp location, and we would look at establishing a expiration ramp that ultimately will allow us to touch into and mine on ore. At the same time, we would also be able to establish a series of expiration cutouts so that we can do a drilling program from underground, and it would be dimensions so that it ultimately could also serve for as a production decline. On Los Filos, we delivered the updated feasibility study for the construction of a 10,010 per day CIL plant reserves in that study were increased 44% after depletion was taken into account. But as we've noted previously, we will make a -- we'll wait on making a construction decision, while we're in a high CapEx period for Greenstone, and also while we work on our operational efficiencies and having stability with local communities. So, I'm going to pass it back to Greg.