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Gold Hart Copper to Recommence Drilling at Tolita Gold-Copper- Molybdenum Asset in Vicuña District of Chile HART Secures Larger Drill Rig Capable of Exceeding Depth of 1,100 Meters

Exploration Programs

Gold Hart Copper to

Recommence Drilling

at Tolita Gold-Copper-

Molybdenum Asset in

Vicuña District of Chile

HART Secures Larger Drill Rig Capable

of Exceeding Depth of 1,100 Meters

September 30, 2025 7:48 AM EDT | Source: Gold Hart Copper Corp.

Toronto, Ontario--(Newsfile Corp. - September 30, 2025) - Gold Hart Copper Corp. (TSXV:

HART) (the "Company", "Gold Hart", or "HART") is pleased to announce its plans for the third

phase of drilling at its flagship Tolita gold-copper-molybdenum asset in the Vicuña District of

Chile.

Tolita was originally drilled down to a shallow depth of approximately 200m using an RC drill in

the late 1990s, with all 3 holes encountering gold and copper. Earlier this year, Gold Hart tripled

that depth with two diamond drill holes which reached approximately 600m each, both

encountering porphyry-style gold, copper, and molybdenum mineralization. Now, Gold Hart

believes it will be able to potentially nearly double that 600m depth.

Specifically, the Company has secured a Boart Longyear LF 90D diamond drill rig, rated to a

depth capacity maximum of 1,193 meters. It is anticipated that the drill will be mobilized within the

next week, with drilling to officially recommence a week thereafter. Gold Hart geologists hope to

drill at a rate of approximately 700-900m per month.

"We truly believe we've barely scratched the surface at Tolita relative to its potential. Both

diamond holes drilled to date encountered porphyry-style gold, copper, and molybdenum

intercepts, and all 3 historic RC holes intercepted gold and copper, but these assets can host very

large systems and extend significantly deeper - and Tolita remains completely open. HART senior

geologists are extremely excited about our ability to return to target #1 equipped with a rig able to

drill 4x deeper than the historic RC holes and 2x deeper than even the recent diamond drill holes,"

commented Isaac B. Maresky, Co-founder & CEO of Gold Hart.

The Company also wishes to announce that an additional geophysical survey may be conducted

at Tolita sometime after commencement of drilling. The Company has been in active consultation

with its contracted geophysics firm, which has developed a specialized expertise having

completed nearly 1,000 geophysical surveys for 100s of companies in Chile, including Atex

Resources Inc. Geophysical chargeability surveys tend to recognize the top of the horizon of the

sulphides, hence Gold Hart's first priority drill targets will remain unchanged given the

shallowness of the anomaly east of the fault. However, there are certain areas of Tolita which may

be amenable to additional geophysical testing. For example, the Tolita geophysical anomaly

remains open to the north; and west of the inferred fault contains lower chargeability which may

prove amenable to deeper geophysics if the system is indeed deeper on that side of the asset

(please refer to enclosed graphic). The Company will provide an update on this initiative in due

course.

September 30, 2025 - Recommencement of Drilling at Tolita in Vicuña

To view an enhanced version of this graphic, please visit:

https://images.newsfilecorp.com/files/10786/268490_gold_hart_copper_-_pr_sept_30_2025.jpg

Gold Hart - Clear Priority Drill Targets East of Fault - Returning to DDHTOL01

To view an enhanced version of this graphic, please visit:

https://images.newsfilecorp.com/files/10786/268490_gold_hart_copper_-_drill_target.jpg

Highest Charge Overlapping Highest Conductivity - Target Priority #1 (DDHTOL01)

To view an enhanced version of this graphic, please visit:

https://images.newsfilecorp.com/files/10786/268490_gold_hart_copper_-

_geophysical_anomaly.jpg

HART - All Drill Holes Encountered Gold & Copper - Indicating Large System

To view an enhanced version of this graphic, please visit:

https://images.newsfilecorp.com/files/10786/268490_gold_hart_copper_-_existing_drilling.jpg

HART'S Tolita - Massive 2.5km Anomaly Remains Open in Multiple Directions

To view an enhanced version of this graphic, please visit:

https://images.newsfilecorp.com/files/10786/268490_gold_hart_copper_-

_geophysical_anomaly_open.jpg

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HART Assets - Large Existing Position in Vicuña & New Land On Historic Domeyko Fault

To view an enhanced version of this graphic, please visit:

https://images.newsfilecorp.com/files/10786/268490_gold_hart_copper_-

_regional_land_holdings.jpg

HART Property Portfolio - Largest Independent Land Owner Surrounding Majors

To view an enhanced version of this graphic, please visit:

https://images.newsfilecorp.com/files/10786/268490_gold_hart_copper_-

_land_position_summary.jpg

HART Assets - Largest Independent Land Owner Surrounding Largest Deposits

To view an enhanced version of this graphic, please visit:

https://images.newsfilecorp.com/files/10786/268490_gold_hart_copper_-_executive_overview.jpg

Gold Hart Copper - First Diamond Drill Hole DDHTOL02 - Announced July 22, 2025

Gold Hart's first diamond hole (DDHTOL02) encountered long porphyry-style mineralization

typical of the Vicuña District, including near continuous gold, copper, and molybdenum intercepts

from approximately 137m until the end of the drill hole at 610m (473m) except for a sterile zone

surrounding a potentially significant fault zone of 150m. Specifically, Gold Hart obtained 203.5m

of 0.25g/t gold equivalent from 137.5m, including a higher grade zone of 67m at 0.38g/t gold

equivalent. Later in this same hole, Gold Hart intercepted another 118m of 0.24g/t gold equivalent,

including 45.5m at 0.30g/t gold equivalent. The drill hole finished in mineralization.

Gold Hart Copper - Second Diamond Drill Hole DDHTOL05 - Announced August 6, 2025

Gold Hart's second diamond hole (DDHTOL05) once again intercepted porphyry-style intercepts

of gold, copper and mineralization, including certain areas of higher grade relative to the first

hole. Specifically, Gold Hart intercepted 10 meters of 0.62g/t gold equivalent, including a highlight

sample that included 0.60g/t gold, 0.34% copper, and 20g/t molybdenum for a gold equivalent of

0.97g/t. This subsection was within a larger 42m mineralized intercept. This aforementioned

intercept was above the fault, but similar to the first hole, Gold Hart again encountered gold,

copper, and molybdenum mineralization below the fault later in the hole as well. In this case,

below the fault, Gold Hart intercepted 22m of 0.40g/t gold equivalent, within a larger 63m

mineralized intercept.

Important Notes: Gold equivalent grade calculated using prices for gold ($3,340/oz) copper

($11,180/t) and molybdenum ($61,917/t) only and assumes equal recovery for all metals. These

metal prices were utilized for both diamond drill holes for the sake of consistency. True widths are

not yet known. Certain samples included anomalous values of silver, lead and zinc which are

excluded altogether.

About Gold Hart Copper

Gold Hart Copper is one of the largest independent land owners surrounding major miners where

the famous Maricunga Gold Belt meets the emerging Vicuña Copper Belt in Chile. HART is

actively acquiring, exploring and developing its portfolio of gold, copper & silver properties

adjacent to the largest gold and copper assets on the continent.

In addition to its large land position in the Vicuña District, Gold Hart recently acquired three

properties just West on Chile's Paleocene-Eocene Belt on the famous Domeyko Faul, which is

home to some of Chile's largest gold, copper, and silver assets including Escondida,

Chuquicamata and Collahuasi. The new Gold Hart properties host several historic gold and

copper mines with high grades of gold, copper, and silver on surface, with a large alteration and

magnetic anomaly extending approximately 6km.

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. Professor José 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.

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 RC

drilling, with highly encouraging results of gold, copper, and silver. Gold Hart properties are

controlled 100% and not subject to any royalties whatsoever.

HART believes it may be sitting on one of the only fully-preserved untested large-scale gold-

copper-silver porphyry targets in the Vicuña 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-Vicuña

district's pioneering geologists in 1993. Gold Hart Copper is fully funded for its planned drill

campaign.

About Gold Hart Copper's Tolita Gold-Copper-Silver-Molybdenum Target

The Tolita property is a historically significant gold-copper-molybdenum asset which was first

recognized and staked in 1993 - by one of the pioneering geologists of the Maricunga-Vicuña

district - for its uniquely high grades of gold and copper on surface. Geochemical surveys

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revealed gold, copper, silver, and molybdenum anomalies, which led to trenching. Tolita has had

significant trenching (5,600m / 5.6km) with the highest grade trench returning grades up to 52g/t

gold equivalent including 4% copper. Tolita has undergone helicopter mag surveys which

identified 4 unique anomalies as well.

In 1996, a third party company optioned the property and drilled 3 short 200m RC holes, without

any geophysics, and yet still hit gold and copper in all 3 holes, including long intercepts of gold

and copper (150m and 164m, respectively) close to surface in 2 of the 3 holes. At the time, gold

was approximately $300/oz and copper traded below $1.00/lb, and large scale sulphide /

porphyry deposits with both gold and copper were often considered less favorable than smaller

scale gold-only oxide deposits. As a result, and due to general market sentiment for junior

exploration companies in 1997-1998, Tolita was only drilled to a depth of 200m with 3 short RC

holes (out of a planned 8 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 2.5km 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 funded for this planned campaign.

References & Notes:

1)Escondida is the largest copper mine globally, as defined by producing the greatest number of copper tonnes per annum. Numbers sourced

directly from property owner's website and public filings.

2)Norte Abierto is considered the largest gold asset in Chile as defined by hosting the largest number of total gold ounces. Numbers sourced

directly from property owner's website and public filings.

3)Please refer to the Company's NI 43-101 Technical Report on Sedar for information pertaining to Gold Hart Copper's properties including

historical exploration at Tolita, including but not limited to, the history of the asset and its original staking, geochemical surveys, trenching

surveys, helicopter magnetic surveys, and historical RC drilling.

4)Geophysical survey is summarized in the Company's NI 43-101 Technical report available on Sedar. Such geophysical surveys are not

definitive, and the results are still at an early stage of interpretation, with no guarantee of a mineral discovery.

HART | Gold Hart Copper Corporation - Social Media Channels

LinkedIn: https://www.linkedin.com/company/goldhart/

X / Twitter: https://x.com/goldhartcopper

Youtube: https://www.youtube.com/@GoldHartCopper

Instagram: https://www.instagram.com/goldhartcopper/

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