Doug Reddy
Analyst · RBC. Please go ahead
Thanks, Pete. So Pete's gone through a lot of the items I would have covered, but I'll reemphasize it is tough quarter. We had signaled lower production in the first half and the very unexpected impacts have hit us principally at RDM in Santa Luz with a weaker production at Aurizona and Los Filos, but let's start off with the USA and I would say the best mine in the Group for the quarter, Mesquite has done really well in Q2 and Q3. They're benefiting from the stripping that was done principally in Q1 that provided access to the Brownie ore body and we've now started stripping while we're still mining from Brownie ore body. We've started the stripping for the next phase of mining in the Vista East that will provide ore as we come into 2023. Overall, mining and processing at Mesquite are ahead of plan and about 60% of the gold production should come from Mesquite in the second half of the year. As was noted earlier in July just into Q3, we celebrated the five million ounce being poured at Mesquite and also safety milestones and at that point, we reported 3 million hours lost time incident free. So, a really good quarter for Mesquite. Moving over to Castle Mountain, the crusher and conveyor are now in place that's been coming for a while as we needed to make a change away from run of mine ore go into leach pads. We've now seen improvement in the permeability and the overall flows have increased. We'll be watching this quarter as the leaching of the new sales happen. We'll be looking for faster leach times and improved recoveries overall. With faster leach times, we also hope to be able to put a larger area under leach with the same volume of solution. And we benefit from just having done an expansion of our leach pad that's complete. Therefore, the costs associated with that will not be carrying over into H2, so overall in sustaining cost that Castle Mountain will reduce in the second half of the year. The leach pad areas are now sufficient for all of the remainder of Phase 1 operations and our Phase 2 permit application we did previously state that it was submitted in March. So it's in the process of being reviewed by government agencies at the moment. Looking at Los Filos, We did have good production from the Guadalupe open pit. It's performing according to plan. In fact, it gets additional run of mine material from the waste which reduces the overall strip ratio. The run of mine material is lower grade and does have a longer leach time. So, it takes a while to get the benefit of moving that material. Grades will improve in Q4 in Guadalupe coming up to about 1.2 gram from the current just under 1 gram per ton. Los Filos open pit was behind plan in the quarter and mined lower grades than anticipated, but it should be getting better as we come into the latter part of the year. Bermejal underground development has improved now and we are focused on getting access to the higher grade zone five area. We should be hitting the higher grades late in Q3 and into Q4. Los Filos underground was mining in areas of lower grade, but it's on plan as of this month and we hope to keep it that way. Our updated technical report including updated mineral resources and mineral reserves for Los Filos will be ready for filing in Q4. Moving onto the next page. In Brazil in the first half of the year, Aurizona had 2.7 meters of rain. So, 1.4 meters of that came in Q2. The heavy rain reduced our mining rate from mining productivity and it limited access to the ore in the bottom of the pit that increased our reliance on stockpile ores which were mostly consumed during this rainy season and at the end, had relatively low grade in Q2 of about 0.9 gram per ton. I'll note that the process plant did very well. Land recoveries were up around 92% and the throughput was good, but we had slugs of ore that high moisture content and cause problems for feeding into the mill. So the mill did well but suffered when we have the very high moisture content material coming in. So each year at Aurizona as we come out of the rainy season, we have a significant ramp up in mining and this year, we will be looking at about 65% of the total tons being done in the second half of the year that's already been happening in July and needs to continue to help and we not only need to be able to get access to the rest of the year or the bottom of the pit where H2 sees process grades coming up to about 1.7 grams per ton. Therefore, a significant increase in overall gold production, but we also need to be able to put in place the stockpile in advance of the next rainy season. Other things happening at Aurizona include the new TSF which we will start shortly and be completed at the start of the next rainy season and we continue to advance studies and permitting for the underground expansion, which will include drilling below the Pilar open pit that occurred in 2021. Moving over to Fazenda. We've seen consistent production at Fazenda. Mining is both 25% from open pit, 70% from underground. We should see an overall improvement and all in sustaining cost to about $1,200 an ounce as we come to the second half of the year. And the exploration teams continue working on annual reserve replacement drilling and very importantly on investigating the several targets that have been identified in the belt between Fazenda and Santa Luz. Moving on to RDM, very disappointing performance in the first half of the year, impacted principally by two suspensions. Firstly, there was a change in regulations governing TSF3 Board requirements. It came in and with immediate effect. So, that's when we reduced their TSF water level by pumping from the TSF to the open pit. And secondly, there was a delay in the receipt of the permit to do the next TSF raise. We have received the permit. And, we are in the process of doing that raise now that will be completed late in the quarter. As we have been building up the TSF raise, we have restarted operations on July 3, but we still have water in the open pit that we are evaporating and pumping out and I'll note that we were in the midst of a large stripping program. So essentially it was negative cash flow and the stripping program was not necessary to be able to access higher grade ores for future years. So, at this time, we did an assessment, and we have determined that we will stop mining of primary ore and process the low-grade stockpiles that are available. We have enough roll through this year and next year if necessary. So in situ, ore grades of about 0.9 gram a ton, whereas stockpiles around half a gram per ton. So this is being done to maximize our cash flow at the time where we need it, for putting capex into Greenstone, and essentially we're at the same time preserving our long-term value at RDM while we pump out water and while we get the TSF raises completed. Guidance has been reduced to less than 30,000 ounces for the year. We are also implementing vacuum side cloning of tailings at RDM that gives us the ability to optimize the tailings storage capacity in our TSF and will also allow us to recycle more water at that mine. So, moving on to Santa Luz, it has been a prolonged ramp up to production, but I will note resin works well. Recoveries are consistently over 70% and up to 82%. That's almost double the recoveries that we would get with the carbon using kerosene as the blinding agent and this is the only operating resin in leach process plan that's treating gold ore with total organic carbon. So, technically, it's a success using the resin but we got to give the resin a chance to do its job and so the prolonged ramp-up has been largely due to modifications and repairs to some areas of the plant. As we scale up from our pilot plant to industrial scale, means that we had experienced certain challenges such as high corrosion of the cathodes. Now, we've gone and replaced the cathodes with a higher quality stainless steel and now performing well. We've also had issues with some of the piping and with leach tanks and we've been progressively fixing these over the last few months. At the same time, we've continued to keep the process plant in operation. These fixes of the leach tanks should be complete in this month. We have been operating even while having at least one tank offline during this period at about 80% of nameplate, so 6300 tons a day and we have run at full capacity of 7400 tons per day. But, we're doing a change of trommel on the primary mill, which should allow us to be able to run consistently at 7400 tons per day plus. The other challenge has been achieving a consistent blend of about 0.65% total organic carbon. Carbon, of course, affects the recoveries of the resin can achieve. We are learning a lot about balancing out the TOC well and the same time trying to maintain as high gold grade as we can. Unfortunately, they seem to come hand in hand. And so it's a real challenge to keep it consistent and give the resin the chance to be able to perform where we wanted to. So we expect to achieve commercial production in Q3 -- at the end of Q3. Moving over to Greenstone. So, yes, it will be one of the largest gold mines in Canada. We just did a news release on July 27 that provided progress following an independent quantitative risk assessment that was completed when our engineering was over 96% complete and the project was over 25% complete and it confirmed that the project is on schedule, on budget. We have an experienced and dedicated team building Greenstone. They react very well to the challenges they face. It's owner-managed teams, so their interest lies very much parallel with the exactly what Equinox and Orion want to see on the project. I do note that as of mid-July, the project achieved 1 million hours with no lost-time incidents, very good safety culture at site. Inflationary pressures have been addressed partly by contingency and also through offsetting savings opportunities where possible. And that's one of the aspects of where our onsite team in terms of up with the ideas and how they can compensate for any potential overruns by approaching things differently. So Q2 activities focused on earthworks, structural concrete, structural steel. The first of four mining trucks are received and being assembled at the moment. Those are kept 793s. We look at Q4 for what pre-production mining will commence. A 56% of total costs are contracted, 28% of total costs are in fixed costs and 26% of total costs have been spent as of the end of June. You can see a few photos showing progress on some of the main buildings and as we move over to page 12, as of July 22, there is a series of statistics on the completion and various areas. Overall, project is 35% complete, the construction itself is 28% complete and then we see how we're doing on earthworks being a big factor 48% complete overall and individual areas including the process of being 14% complete, our plants at 18 and tailings facility 29% complete. There's more detail as provided in the news release and also a series of photos on our website showing the progress on site. The majority of the buildings are on schedule to be enclosed by year-end. Obviously, we want to have that complete before we head into the height of winter. So, we will just move onto the next page. That's the first of eight leach tanks being completed and we have commissioning on the ethylene water treatment plant should be occurring in Q3 and Q4. You can see the inside of building there. And then finally on the next page, an overview of the site showing the progress on all of the buildings. The site is changing rapidly. We see progress on a weekly basis, sort of the good advance rate and the photos are up on our website and will also be hosting a site visit in September. So, we look forward to having two groups come through and seeing the progress as we come to the end of the summer building season. So with that, I'm going to hand it back to Christian