Mr. Rodrigo Diaz Tilleria reprots

GOLD HART COPPER TO UPSIZE FINANCING DUE TO STRONG INVESTOR DEMAND

Gold Hart Copper Corp. has provided an update in regards to its acquisition of Rhyolite Resources Ltd. and the concurrent financing.

Per the company's prior announcement (Feb. 17, 2026), Gold Hart Copper signed an agreement to acquire Rhyolite Resources Ltd. concurrent to a financing of a minimum of $4-million up to a maximum $10-million. The company currently intends to upsize this financing, and will likely close on approximately $10-million up to a maximum of $15-million, although there has been demand well in excess of that number.

Gold Hart Copper believes the upsized financing can significantly accelerate exploration at its portfolio of properties. Gold Hart is currently amongst the largest independent land owners surrounding major miners where the famous Maricunga gold belt meets the emerging Vicuna copper belt -- with the Tolita, Toro, Zelma, Cachitos and Casale Sur properties. Additionally, Gold Hart recently completed a roll-up of four historic assets on the Domeyko fault system just west of Kinross's La Coipa gold mine, known as the Nessa complex and comprising four primary mining claims Nessa, Ringo, Manto Carolina and Rebecca with high grades on surface and including 14 historic artisanal gold and copper mining pits.

Tolita -- north of Lundin's Caserones and BHP-Filo-Lundin Vicuna joint-venture -- Vicuna district

Tolita hosts a large 4.5-square-kilometre IP anomaly, recently expanded 76 per cent from the initial 2.4 square km anomaly. In three historic shallow (200-metre) RC (reverse circulation) drill holes, Tolita was shown to have long intercepts of gold and copper in all three holes, including 150 m and 164 m of mineralization in the two better holes. Gold Hart added two diamond drill holes of approximately 600 m each, confirming the presence of a porphyry system, and 360 m and 231 m of gold, copper and molybdenum mineralization, respectively. Gold Hart is currently in the process of completing its deepest drill hole yet, expected to exceed one kilometre, and hopes to be in a position to announce completion of the hole in the coming days.

In addition to the encouraging drilling and large geophysical anomaly, Tolita has had 5,600 m of trenching, including many intercepts of gold grades on surface. For example, nine long trenches averaged 95 m each with an average gold grade of 0.21 gram per tonne, including up to 1.71 g/t gold. Tolita also hosts higher grades on surface, with up to 52 g/t gold equivalent including 3.99 per cent copper.

As prior announced, Gold Hart intends to add an additional drill rig at Tolita's highest-grade trench -- with up to 52 g/t gold equivalent including 3.99 per cent copper on surface -- within 10 m of 8.61 g/t gold. Gold Hart expects to have this drill rig on site by early March. This will be an RC drill rig to complement the diamond drill already on site. The objective of the RC campaign is to demonstrate higher-grade pockets closer to surface, beyond the larger porphyry target being targeted with the diamond drill. Gold Hart owns Tolita with no royalties.

Gold Hart, vice-president, Rodrigo Diaz Tilleria (PGeo), commented: "Our focus remains the large-scale porphyry potential of Tolita. But Tolita also offers the rare opportunity to target and hopefully prove a high-grade shallower component of the asset. In the Vicuna district where one g/t gold on surface is rare, we have 52 g/t gold and simply put we need to test it. RC drilling is significantly faster and cheaper, does not require water to operate, and is well suited to the characteristics of this target. Our current geological model assumes that this high-grade trench at Tolita may only be a fraction of the size of the larger system, but we do believe it hosts potential for generating higher-grade intercepts close to surface and therefore potential to add high-grade ounces, thereby demonstrating another facet to the Tolita asset." Gold Hart anticipates launching its RC drill campaign at this trench in early March.

Gold Hart recently hosted a site visit which included tours of the Tolita and Nessa assets. Gold Hart board and advisory board members including the honourable John R. Baird, Mark Kucher and Aleta Shiff were also in attendance.

Toro -- surrounded by Penoles and Fresnillo -- Vicuna district

Toro had six holes drilled by a prior optionor, with all holes intercepting gold and silver. Toro is believed to have potential as a low to moderate sulphidation epithermal system. In contrast to the 2.5-kilometre length of the Tolita IP anomaly, Toro is 800 m to one kilometre, so considerably smaller. However, the company believes Toro has potential to be a stand-alone asset with potential for higher-grade ounces relatively close to surface. The prior optionors did not have the benefit of the IP survey and did not intercept the anomaly discovered by Gold Hart. With the additional funds on hand, Gold Hart is well positioned to add a drill rig at Toro. Gold Hart owns Toro with no royalties.

Zelma -- surrounded by Barrick and Newmont's Cerro Casale/Norte Abierto -- Vicuna-Maricunga district

The Zelma property is surrounded on all four sides by Barrick and Newmont's mega Norte Abierto JV (joint venture) containing 53 million ounces of gold, 14 billion pounds of copper and 128 million ounces of silver. Norte Abierto is widely considered the largest undeveloped gold-copper-silver asset on the continent. Zelma is a historic asset, formerly known as Lobas, hosting a unique aster anomaly, yet has only received one small preliminary geochemical survey conducted by Gold Hart, with the majority of samples taken containing anomalous values of gold, copper or molybdenum. Gold Hart intends to utilize some of the additional funds for exploration at Zelma. Gold Hart owns Zelma with no royalties.

Casale Sur and Cachitos properties -- SW corner of Barrick and Newmont's Cerro Casale/Norte Abierto -- Vicuna-Maricunga district

Cachitos was personally staked by Gold Hart co-founder Dr. Frutos decades ago, after he was involved in the discovery of the adjacent Cerro Casale/Norte Abierto mega gold-copper-silver deposit. Cachitos was prior optioned for $6.5-million (U.S.) plus a royalty. Gold Hart owns Cachitos with no royalties. More recently, Gold Hart was able to add the Casale Sur claims adjacent to Cachitos via the Chilean government mining auction, significantly expanding the property size. Dr. Frutos believes there is potential for a porphyry undercover, and Casale Sur hosts an interesting aster anomaly. With the additional financing, Gold Hart will be well positioned to allocate a budget for exploration on these assets. Gold Hart owns Casale Sur with no royalties.

Nessa complex -- S of Codelco's Portrerillos/El Salvador copper complex and W of Kinross's La Coipa gold mine -- Domeyko fault system

The Nessa properties (Nessa, Ringo, Manto Carolina and Rebecca) sit on the renowned Domeyko fault system of Chile, most famous for hosting the Escondida copper mine -- now the largest copper mine in the world -- which was first staked by Gold Hart co-founder Dr. Jose Frutos in the 1970s. Dr. Frutos recognized and personally staked some of the Nessa claims nearly two decades ago, due to the unique surface alteration -- visible from satellite imagery -- with high grades on surface and several historic mines which exploited gold, copper and silver at or near surface via pits and shallow tunnels. The historic mines coincide with a pervasive yet intense hydrothermal alteration (silicic-argillic to quartz-sericitic with abundant kaolin in the central part) with a halo of propilitic alteration in the periphery, with disseminated gold-copper-silver mineralization throughout.

Gold Hart recently expanded the Nessa property by 330 per cent (3.3 times) from an initial property size of 4,100 hectares up to a current land position of 13,500 Ha (135 square kilometres). The Nessa complex is just south of the massive Codelco El Salvador -- Portrerillos copper mining and smelting complex, one of the oldest copper smelting facilities in the country. Nessa is also surrounded by major miners Newmont, Solaris, JX Nippon and Anglo American, and sits just northwest of Rio2's Fenix gold deposit and just west of Kinross's La Coipa gold mine. In addition to Escondida, the Domeyko fault system is also home to Chiquicamata and Collahuasi, which are together three of the top five copper mines in Chile.

The Nessa properties were known to host 13 historic artisanal high-grade gold and copper pits, which were mined using mules due to lack of access. Additionally, historic geochemical surveys discovered high grades on surface for gold, copper and silver, with samples up to 25 g/t gold, 3.25 per cent copper, 958 g/t silver. However, the company has now discovered additional copper showings on surface and historic mining pits, and now believes there may be other unknown targets on these assets. Gold Hart recently completed a follow-on geochemical survey and obtained additional high grade samples, including up to 9.7 g/t gold, 968 g/t silver and several copper samples exceeding 5,000 parts per million copper. The company hopes to be in a position to report on the final copper values for those higher-grade copper samples, in the coming days.

The company believes there is potential to allocate funds from the current financing to the exploration and development of Nessa. Specifically, the company is planning a 500-to-1,000-sample geochemical survey in the coming weeks, to be followed by trenching and geophysical surveys. Gold Hart hopes to have Nessa drill ready this year, and believes the property may be particularly amenable to shallower and cheaper RC drilling due to the shallow nature of the grades and historic mining pits encountered thus far. Gold Hart owns the Nessa complex with no royalties.

About Gold Hart Copper Corp.

Gold Hart Copper is one of the largest independent land owners surrounding major miners where the famous Maricunga gold belt meets the emerging Vicuna copper belt in Chile. Gold Hart is actively acquiring, exploring and developing its portfolio of gold, copper and silver properties adjacent to the largest gold and copper assets on the continent.

Gold Hart has rolled up a portfolio of historically significant assets surrounding majors, in some cases personally staked by the very same geologists who made the adjacent mega-discoveries, since the early 1990s. Some of the Gold Hart properties have already undergone a first phase of drilling, with highly encouraging results of gold, copper, silver and molybdenum. Gold Hart properties are controlled 100 per cent and not subject to any royalties whatsoever.

Gold Hart believes it may be sitting on one of the only fully preserved untested large-scale gold-copper-silver porphyry targets in the Vicuna district -- an asset that was first recognized for its uniquely high grades of gold and copper on surface -- and staked by one of the Maricunga-Vicuna district's pioneering geologists in 1993. Gold Hart Copper is fully financed for its planned drill campaign.

Gold Hart's team of geologists were personally involved in pioneering exploration in the region, leading to some of its greatest gold, copper and silver deposits, and include the country's former Geological Survey National Deputy Manager Dr. Prof. Jose Frutos. Specifically, senior Gold Hart geologists were personally involved in the Escondida copper discovery, now the largest copper mine in the world controlled by Rio Tinto and BHP, as well as Cerro Casale, the largest gold-copper discovery in Chile acquired by Barrick and Newmont (GoldCorp) with 59 million ounces of gold and 12.5 billion pounds of copper.

In addition to its large land position in the Vicuna district, Gold Hart recently acquired the Nessa properties just northwest on Chile's Paleocene-Eocene belt on the famous Domeyko fault system, which is home to some of Chile's largest gold, copper and silver assets including Escondida, Chuquicamata and Collahuasi. The Nessa properties host several historic gold and copper artisanal mines with high grades of gold, copper and silver on surface, with a large alteration and magnetic anomaly extending approximately six kilometres. Kinross's La Coipa gold mine sits just east of Nessa.

About Gold Hart Copper's Tolita gold-copper-molybdenum-silver target

The Tolita property is a historically significant gold-copper asset which was first recognized and staked in 1993 -- by one of the pioneering geologists of the Maricunga-Vicuna district -- for its uniquely high grades of gold and copper on surface. Geochemical surveys revealed gold, copper, silver and molybdenum anomalies, which led to trenching. Tolita has had significant trenching (5,600 metres/5.6 km) with the highest-grade trench returning grades up to 52 g/t gold equivalent including 4 per cent copper. Tolita has undergone helicopter mag surveys which identified four unique anomalies as well.

In 1996, a third party company optioned the property and drilled three short 200 m RC holes, without any geophysics, and yet still hit gold and copper in all three holes, including long intercepts of gold and copper (150 m and 164 m, respectively) close to surface in two of the three holes. At the time, gold was approximately $300/ounce and copper traded below $1.00/pound, and large-scale sulphide porphyry deposits with both gold and copper were often considered less favourable than smaller-scale gold-only oxide deposits. As a result, and due to general market sentiment for junior exploration companies in 1997 to 1998, Tolita was only drilled to a depth of 200 m with three short RC holes (out of a planned eight-hole campaign).

When Gold Hart acquired the property, a full geophysical survey was conducted by a recognized geophysics firm, and a large high-chargeability and conductive anomaly was discovered that is near surface and almost 2.5 square km in size and interpreted as a copper-gold or gold-copper porphyry system that certainly warrants additional exploration and drilling. Gold Hart Copper has therefore launched diamond drilling and is fully financed for this planned campaign.

Most recently (April to May, 2025), the company completed two holes of approximately 600 m each, confirming that Tolita indeed hosts a fertile porphyry system. Gold Hart geologists observed early stage veining near surface, providing the first clear evidence of a porphyry-related system within zones of moderate chargeability. The mineral intercepts occur within a multigeneration stockwork vein system hosted by a series of multiphase porphyry intrusions. Multiple alteration types have been identified, overprinting the original potassic alteration of the porphyry system. At greater depth, the potassic alteration becomes increasingly dominant, accompanied by more intense and continuous veining across locally moderate to stronger chargeability amplitudes. The newly acquired geophysical data indicate that the system may even extend several hundred metres further at depth. Effectively, the company and various visiting geologists have all concluded the presence of a porphyry, and Gold Hart is now focused on exploration to find the richer grades and potential limits of the system.

About Tolita -- flagship gold-copper-molybdenum-silver porphyry target in Vicuna district -- diamond drilling program

Gold Hart geologists -- including senior geologists Dr. Prof. Jose Frutos, Enrique Viteri, Jonathan Warner and Rodrigo Diaz Tilleria -- carefully designed a 10-hole drill plan in order to optimally test Tolita as a potential gold-copper-molybdenum-silver porphyry target. As prior announced, Gold Hart first attempted to drill target No. 1 known as DDHTOL01 in March of 2025, but after difficulties were encountered under tight time constraints, the team instead elected to drill DDHTOL02 and DDHTOL05. These holes were approximately 600 m each and encountered approximately 360 m and 230 m of gold, copper and moly porphyry mineralization, respectively. Now, Gold Hart is back to target No. 1 DDHTOL01 with a more powerful drill rig capable of reaching 1,100 to 1,200 m.

Consequently, there await at least another seven highly attractive diamond drill targets identified across the asset area. These targets are supported by a combination of geophysical characteristics, including chargeability and conductivity, strong geological and structural controls, as well as coincident geochemical anomalies.

Tolita is a very large target, with an original 2.5 square km geophysical anomaly recently expanded by 76 per cent to 4.5 square km. The Tolita gold soil sample geochemical surface halo (an approximation of gold on surface above 0.1 g/t) alone is nearly 28 Ha and the Tolita property is 3,476 Ha equal to approximately 34.8 square km.

Furthermore, as recently confirmed in a follow-up geophysical survey, the Tolita geophysical anomaly expands in both size and intensity at depth, which could translate into an enlarging system at depth. Per the third party geophysicist who conducted the survey: "The vertical extent of the steeply dipping conductor that is likely related to a fault is better defined on the two new deep lines (2600N and 452200E). This surprised me, as I had expected resolution similar to the first lines. This would indicate to me, that the probable structure extends very deeply and has a strong contrast in resistivity with the host rock. Because it is conductive, it should act as good conduit for hydrothermal water flow, which should be good news for mineralization. There is confirmation that the alteration system extends to greater depth and may increase in intensity at depth as it is more conductive. Hopefully, the copper and gold grades would increase correspondingly as well."

Porphyry systems in Chile, and in the Vicuna district specifically, can prove larger and richer as they progress deeper. For example, in Chile, Atex Resources announced one of their most significant drill holes ever (ATXD25C) which graded 2.72 per cent copper equivalent, beginning at 1,558 m and ending at a depth of 1,722 m. In the Vicuna district, NGEX published "DPDH028, the best hole drilled to date as Lunahuasi, which was drilled deeper and to the west of all previous holes," which included multiple highly compelling intercept including the deepest 53.5 m (1,219.5 m to 1,273.0 m) grading 7.79 per cent copper equivalent. In summary, the company remains extremely optimistic about this drill hole DDHTOL01, in addition to the future diamond drill targets as well.

Qualified person

The technical information contained in this news release related has been reviewed by Jonathan A. Warner, executive vice-president of Gold Hart Copper and a qualified person within the meaning of National Instrument 43-101.

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