

1 Oct 2026 · 13m · 4 chapters

Goldheart Copper (TSX-V: HART) discusses new drill results from Tolita in Chile’s Vicuña District and how the company plans to expand its Chilean portfolio, including a potential acquisition of the former gold-copper mine Copioso.
Isaac Mareske, CEO of Goldheart Copper. He leads drilling and portfolio strategy in Chile.
Tolita has hit gold-copper porphyry mineralization in every drill hole so far; investors have not seen “missed holes.” The company says it has only drilled ~4.5–5% of the Tolita anomaly, implying a much larger system remains.
Diamond “hole four” (550 m) returned ~0.21 g/t gold equivalent over the first ~100 m from surface, plus ~231 m of ~0.16 g/t gold equivalent below; RC drilling in a high-grade trench ~700 m south was “slightly underwhelming” but supports an ~1.8 km anomaly length. Copioso plans include drone surveys and RC drilling from mine tunnels if the acquisition finalizes; Goldheart is also monitoring additional government-auction assets.
Written by AI. May contain mistakes.
Discussion on the positive reception of drilling results at Tolita.
“So happy to walk through this with CEO, Mr.”
A detailed breakdown of drill hole four's results and implications.
“we were not expecting much from this hole at all.”
Discussion on future drilling plans and resource allocation for Tolita and Copioso.
“A lot hinges on whether or not we received the finalization on this Copioso asset, the former gold and copper mine, because that was a historic multi-million ounce resource and was a mine.”
Overview of upcoming exploration strategies for the potential acquisition of Copioso.
“And I believe Tolita does have a bright future as the next periphery of the Vicuna district.”

Get the gist, explore an idea or ask about something said.
On Mining Stock Daily, what are the key points of this episode?
Automatic transcript. May contain errors.
0:16Mining Stock Daily: All right, everybody, getting on to our regular scheduled programming post Beaver Creek as we've run through all of our coverage there from that event. And we're actually going to get a follow-up with one of our partners whom I saw up on the mountain. However, it wasn't able to get an update in, but we're going to do that now for good reason. Goldheart Copper, they do trade on the Venture Exchange with HART. They put out a lengthy news release this morning, including new drill results out of Tolita in the Vicuna District. So happy to walk through this with CEO, Mr. Isaac Mareske. Isaac, good to see you once again.
0:52Mining Stock Daily: How was your Beaver Creek? I thought it was an unbelievable conference this year. Seemed to be twice as busy as last year. Saw many, many familiar faces and some new faces. So it was overall a hugely successful conference. And it was great to see you there too, Trevor. Yeah, it was good to see you. Before we kind of dive in today's news release, I know you had a number of conversations regarding the company. Give me a breakdown. You know, with people you did speak to, what was the overall sentiment, what you guys had or had been accomplishing in Chile. We've been very pleased with the reception of the drilling at Tolita so far from sophisticated investors because, candidly, we have not missed a single hole yet.
1:42Sorry, I'm a bit sick today. We obviously haven't hit a Filo 41, but Filo 41 was the 41st hole, and I would stack Tolita's first four holes up against any deposit in the Vicunia because, you know, we've been hitting consistently long golden copper porphyry style mineralization. Now, the one interesting thing about the Tolita drill hole so far is they've been between the 0.2 to 0.3 range generally. And if you look at the Tolita trenchant, we have lots and lots of trenching from 0.2 to 0.3. You know, we have 90 meters, 0.25, we have 120 meters of 0.28. So there's lots and lots of trenching on surface at Tolita.
2:26I think we have like 10 trenches, or even more with 100 meters of 0.2 to 0.3 each. So what that tells me is we're getting the same grades in the drill holes as we have in the trenches, which effectively tells me that we really haven't hit the system yet. Either it's beneath us or it's between the holes because these holes are so vastly spaced apart.
2:51Mining Stock Daily: Okay. So let's kind of dive into specifically hole four. That is what you reported. Another deeper hole. It did return gold and copper mineralization about just over a hundred meters, a 0.21 grams per ton gold equivalent. There was another larger, broader intercept below that 231 meters, a 0.16 grams per ton gold equivalent. But I think you mentioned it precisely here, Isaac. I mean, mineralization, a lot of smoke, definitely not the discovery or the system. I think that goes without saying. But enough smoke here to really kind of, you know, exploration's hard, but you haven't really dived into the system.
3:31Mining Stock Daily: Maybe give us, break down some of the data what you and the geologists are taking away from the this hole? This hole was really a pleasant surprise because as we guided the market, we were not expecting much from this hole at all. We didn't see much visually. It had significantly less veining than prior holes. So we guided the market to expect this hole to be, you know, basically a dud hole. And it came back being one of the best holes in terms of mineralization from 0.00 meters, meaning that first hundred or so meters of 0.25 or 0.21, I should say, is right from surface, right? And then another 230 or so meters of mineralization later in the hole.
4:13So this was only a 550 meter hole and it was mineralized for about 62 % of the hole. And if you look at nearby deposits that are open pit, you know, Casteronas, their mining grade's not much higher than this. So yes, I agree with you in terms of we haven't hit the really juicy stuff yet, but we're definitely demonstrating that Tolita is a very big system. And it gives me a lot of encouragement to know that the bigger players who have taken a look at our data agree that we're clearly demonstrating that Tolita is something very big in the Vicuña. And if you look at the image that we included in our press release, we effectively took every single drill hole to date.
4:55We enlarged each drill hole by 100 meters around the center. And we showed that we've only scratched about four and a half, five percent of this anomaly. So 95 percent of the known Tolita anomaly has not been drilled. We've just scratched the tip of the iceberg here and we've hit golden copper porphyry mineralization on every single hole to date. So it gives me a lot of encouragement because if you look at, you know, any other deposit in the Vicunia, they had many holes where they weren't hitting anything, you know, close to what we've had in every single hole so far. So yes, I agree. We haven't hit Philo 41, but we've also hit golden copper porphyry in every hole today.
5:37So I'm still a huge believer in Tolita and I'm receiving positive feedback from those who seem to be in the know.
5:44Mining Stock Daily: Yeah. Well, if I may, and you and I chatted about this last week up in Beaver Creek, like, listen, Isaac, like if I may say so myself as a shareholder of the company, good data here. I think there's enough smoke and obviously I'm not a geologist, I'm not an exploration geologist by any means, but maybe no, a enough to have a little bit of clout in this, but I think there's enough here to really go back and really refine your next drilling campaign and your targets and direction of the drill. As we sit here today, what is the current discussion with you and the team about going back and putting more holes into Toledo?
6:23Mining Stock Daily: Obviously, you have the capital to do so. Right. So we have about$28 million in the bank as per our financials filed yesterday. So we're well cashed up. A lot hinges on whether or not we received the finalization on this Copioso asset, the former gold and copper mine, because that was a historic multi-million ounce resource and was a mine. And it's proximal to a mining town nearby. So if we do indeed obtain that asset, which I believe we will because we've had further positive responses from the courts last week, then we will be allocating significant resources to that asset because, candidly, it's very advanced with some really interesting historical data.
7:07Tolita will be advanced one way or another, but what I would say is that if we shift resources to Copioso, the methodology that Tolita will be advanced might be through a partnership opportunity.
7:23Mining Stock Daily: Okay, very good. Let's talk about, there's other drill results, the RC drill holes that you put into that high-grade trench area. obviously a little bit higher factor of precious metals in here, shorter intervals, obviously different mineralization all the way, but maybe let's walk through that. There's a seven holes, I think, put into this high-grade trench area. Give us a general kind of scope of what you found there and how you maybe attack this, if at all. So the high-grade trench was kind of a bit of a flyer because it's about 700 meters south of even the uh closest drill hole so we have a bunch of super high grade gold and copper on surface there we have eight meters of 10 grams gold with up to four percent copper 46 grams per ton gold so it was a very unique little trench to have in the vicuna and so we thought let's poke some rc holes into it um obviously we didn't get 50 plus meters of mineralization, we got a bunch of nice little five meter or so hits.
8:24Not, I would say, the trench slightly underwhelmed, but this diamond hole significantly overwhelmed, which to me was on kind of a weighted basis, very encouraging. In terms of the RC hole, what it does demonstrate is there's mineralization 700 meters south of the center of the deposit. So this is about a 1 ,800 meter, 1.8 kilometer long anomaly. And that trench is at the very, very southern tip. We think it might be worth drilling 100 meters north and south of that trench to see if perhaps we just, you know, it kind of continues in either direction. But I was pleasantly surprised by the diamond and I would say slightly underwhelmed by the RC holes.
9:10but on balance overall very very excited and uh hopefully um sophisticated investors will appreciate that the diamond holes are really where the meat is this deposit our um our goal with the rc holes was to show that there could be you know a couple hundred thousand ounces at higher grade um obviously we didn't hit that but we hit another 500 meter diamond hole which really adds meat to this deposit and shows that the porphyry is very very big so on balance very excited about it. And I believe Tolita does have a bright future as the next periphery of the Vicuna district. Okay.
9:47Mining Stock Daily: You mentioned in the news release, you talked about Copioso and kind of how that stands within trying to make, acquiring that asset for Goldheart Copper Isaac. In the news release, you actually said that the company's already planning some exploration scenarios if and when that acquisition does kind of hit the books here. Can you, what does that scenario look like right now? I mean, what kind of are you planning for Copio? So if it indeed comes into your hands. So the first thing we have to do is run drone surveys. We have the drone ready to go on that front, simply because it's best practice in a former mine to have a comprehensive aerial footage of every single nook and cranny of the mine, just best practice for geologists going to visit an old mine.
10:37So that's going to be the first thing, which will take a couple of weeks after we get it. And then it's really a matter of trying to remodernize that old resource, which will hopefully include a bunch of RC drilling directly from the tunnels. So I'm really excited about getting drills there ASAP. I think it might just be a matter of days, but at most a matter of weeks until we have the final on that one. And you may have also seen that we announced that we're actually looking at another one in addition to Copioso. So right now, we appear to have a real advantage when it comes to these kind of, I call them government auctions, because we monitor an extremely comprehensive database of claims that Chile and we rigorously monitor them and we apply for claims whenever we think that they might have prospective value.
11:23And I'm looking at another one already. So, you know, I think a lot of people would have thought they won the lottery with Copioso. And I think we I think we have. but my approach is we have a huge advantage let's press our advantage right now because who knows how long it's going to last and so my goal is to do maybe another one or two of these and kind of follow the fnx model and really just take over the district and so i think you'll see us obtain copioso hopefully you know knock on wood and then i think you'll see us obtain maybe another one or two interesting assets with some really interesting historical data and if you look at the map from Copiapo to the Vicuña and to the Domeco Falt system near in Rossa's La Coipa, you just see gold-heart yellow claims everywhere.
12:06That's final to goal. Okay. All right.
12:09Mining Stock Daily: Isaac, thanks so much for your time. We're going to keep it short and sweet as time is running out on both our fronts, but hope you feel better, my friend. Good seeing you last week and we'll hopefully touch base regarding Copioso sooner rather than later. So all best of luck on that front. Much appreciated. Always an honor to be on the greatest mining stock podcast in the world, Trevor. Thank you. All right, everybody. Goldheart Copper Trades on the venture with HART. And we'll be back with more here on MST. The information presented should not be considered investment advice. Mining stock daily and affiliates are not responsible for any loss arising from any investment decision in connection with the material presented herein.
12:49Mining Stock Daily: Please do your own research or speak with a licensed financial representative before making any investment decisions.
Gold Hart Copper CEO Isaac Maresky joins Mining Stock Daily to discuss the latest drilling at the Tolita Project in Chile’s Vicuña district, where the company continues to encounter broad gold-copper porphyry mineralization but believes it has yet to hit the heart of the system. Maresky explains why the latest diamond hole—mineralized across roughly 62% of its length—adds confidence that Tolita is a large porphyry system, with approximately 95% of the known anomaly still undrilled. The conversation also covers Gold Hart’s potential acquisition of the historic Copioso asset, plans to rapidly modernize its historical resource, and a broader strategy to acquire additional prospective ground across Chile.