Gold Hart Copper Identifies High Grades of Gold Copper & Silver in First-Ever Comprehensive Geochemical Soil Survey at the Nessa Gold Copper Silver Assets in the Domeyko Fault System New Drill Results from Tolita Asset in Vicuna District Pending;
Gold Hart Copper Identifies High Grades of
Gold Copper & Silver in First-Ever
Comprehensive Geochemical Soil Survey at
the Nessa Gold Copper Silver Assets in the
Domeyko Fault System
New Drill Results from Tolita Asset in Vicuna District Pending;
Continues to Advance Application ("Pedimento") For Copioso
- Historic Gold Copper Silver Asset & Former Mine to Expand
Portfolio of Prime Properties In Chile;
Toronto, Ontario--(Newsfile Corp. - August 24, 2026) - Gold Hart Copper Corp.
(TSXV: HART)
("
Gold
Hart
" or "
HART
") is pleased to announce the results from the first-ever comprehensive geochemical soil
survey at the Nessa Complex gold-copper-silver properties in the Domeyko Fault System of Chile.
The Company is pleased to report that the survey successfully identified multiple zones of anomalous
gold, copper, and silver, as well as associated pathfinder elements. The Gold Hart technical team is now
integrating all these anomalies together with other geological observations in order to build a
comprehensive interpretation. The element associations observed to date are compatible with
polymetallic epithermal-style mineralization.
Interestingly, while several of the zones containing elevated gold, copper, and silver did indeed occur in
proximity to the known historic mining pits — as expected — the survey also identified other new areas
of elevated gold, copper, and silver which now warrant further attention. These results form part of the
broader exploration program underway at the Nessa complex, and will be followed-up with additional
exploration and development, including detailed geological and structural mapping, trenching surveys
and geophysics prior to advancing into the critical drilling stage.
Gold Hart Copper Vice President Rodrigo Alejandro commented,
"I was very excited to see several
exceptionally high-grade samples from this first geochemical soil survey at Nessa, with
individual samples returning up to 3,235 ppm copper, 401 ppb gold, and 36 ppm silver. In fact, on
some occasions I remarked that these sorts of grades would be more commonly found in a
rock-geochemical survey than a soil-geochemical survey like this one. But perhaps more
interestingly, the soil geochemical anomaly appears to coincide very nicely with the known
magnetic anomaly, once again pointing to Nessa as offering some highly compelling targets for
exploration and advancement."
For further clarity, this geochemical survey was conducted on a prioritized zone of approximately 10% of
the greater Nessa complex. Specifically, this first-ever geochemical soil survey at Nessa, covered
approximately 1,400 (14km
2
) hectares of the greater Nessa complex which totals 13,500 hectares
(135km
2
). In total 780 samples were analyzed by ICP. This soil geochemical survey followed upon the
success of the prior announced preliminary geochemical rock survey, wherein several samples returned
high grades of gold and copper.
Specifically, 7 samples graded 1.25% to 4.73% copper, including
4 samples exceeding 2.40% copper. 12 Samples graded above 1g/t gold, with 6 samples
grading between 4.10g/t to 9.74g/t gold.
Please refer to notes below for details on quality assurance
controls.
Gold Hart wishes to thank its dedicated team of 9 geologists and assistants who led this geochemical
survey at Nessa, for their excellent work. Specifically, the survey was led by Gold Hart VP Rodrigo Diax,
together with Sebastian Galaz, Nicolas Ascui, Benjamin Gomez, Cristian Gonzalez, Pedro Parga, Felipe
Valdivieso, Pablo Schulze, and Alejandro Perea.
Results Pending for 7 RC Drill Holes at Tolita in Vicuna District - Targeting High Grade Trench
As previously announced, in addition to Gold Hart's primary diamond drilling at its Tolita project, the
Company added a reverse circulation ("
RC
") drill rig in order to target certain higher grade opportunities
closer to surface at Tolita. Specifically, Gold Hart is targeting its highest grade trench, which grades
8.61g/t gold equivalent over 10m, including 8m at 10.41g/t gold equivalent, including 2m of 10.41g/t gold,
20g/t silver, and 2.88% copper, and including grabs of up to 45.75g/t gold, 28g/t silver, and 3.99%
copper (approximately 52g/t gold equivalent). The Company eagerly awaits the results and will report on
them as soon as they become available.
Gold Hart Continues to Advance Gold Copper Silver Application ("Pedimento") for Copioso
Asset - Historic Mine - to Expand Its Portfolio of Properties In Chile
Per the Company's prior announcement, Gold Hart reported that the Company filed an application
("pedimento") for a gold-copper-silver exploration mining concession (the "
Application
") referred to as
the
Copioso Asset
, to expand its portfolio of prime properties in Chile. By way of update, the Company
has meaningfully advanced the process, and has now fully confirmed preference on certain portions of
the property. The Company hopes to be in a position to provide a more fulsome update by the end of
August or early in September. Copioso was a historic mine for gold, copper and silver, and the
Company has already begun planning various scenarios for exploration and development should the
acquisition be completed successfully. Please refer to the Company's prior announcement (May 20,
2026) for more information:
https://www.newsfilecorp.com/release/298175/Gold-Hart-Copper-Provides-
Updates-on-Drilling-at-Flagship-Tolita-Asset-in-Vicua-District-Geochemical-Survey-at-Nessa-
Properties-in-Domeyko-Fault-System-and-New-Property-Application-for-Historic-Gold-Copper-Silver-
Asset-Former-Mine
.
Gold Hart Copper - Nessa - 135km Land Package - 1
To view an enhanced version of this graphic, please visit:
https://images.newsfilecorp.com/files/10786/311030_gold_hart_copper_-_nessa_-
_135km_land_package_-_1.jpg
Gold Hart Copper - Nessa - Gold Copper Silver Anomalies - 2
To view an enhanced version of this graphic, please visit:
https://images.newsfilecorp.com/files/10786/311030_gold_hart_copper_-_nessa_-
_gold_copper_silver_anomalies_-_2.jpg
Gold Hart Copper - Nessa - Regional Mag Anomaly - 3
To view an enhanced version of this graphic, please visit:
https://images.newsfilecorp.com/files/10786/311030_gold_hart_copper_-_nessa_-
_regional_mag_anomaly_-_3.jpg
Gold Hart Copper - Nessa - Elevated Grades Analysis - 4
To view an enhanced version of this graphic, please visit:
https://images.newsfilecorp.com/files/10786/311030_gold_hart_copper_-_nessa_-
_elevated_grades_analysis_-_4.jpg
Gold Hart Copper - Nessa - Geochem on Mag Anomalies - 5
To view an enhanced version of this graphic, please visit:
https://images.newsfilecorp.com/files/10786/311030_gold_hart_copper_-_nessa_-
_geochem_on_mag_anomalies_-_5.jpg
Gold Hart Copper - Nessa - Team of Geologists - 6
To view an enhanced version of this graphic, please visit:
https://images.newsfilecorp.com/files/10786/311030_gold_hart_copper_-_nessa_-
_team_of_geologists_-_6.jpg
Stock Options
The Company also announces its plans to issue incentive stock options to various key personnel. Per its
10% rolling stock option plan, and due to the fact that this plan is currently only ~20% utilized, Gold Hart
is issuing up to 13-Million options, which brings the total options to just under 7.5% of the shares
outstanding. These options are being allocated to incentivize key board members, executives,
consultants, and advisors, including those new team members who have not yet received any incentive
stock options. These stock options shall be exercisable for 5 years at a price of $0.26 and remain
subject to requisite approvals.
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
2
.
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%
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
3
in 1993. Gold Hart Copper is fully funded for its planned drill campaign.
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
5
controlled by Rio Tinto and BHP, as well as Norte Abierto / Cerro Casale, the largest gold-copper
discovery in Chile
2
acquired by Barrick and Newmont (GoldCorp) with reserves and resources of 50.6-
million ounces of gold (0.53g/t), 13.4-billion pounds of copper (0.20%) and 218-million ounces of silver
(2.3g/t).
In addition to its large land position in the Vicuña 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 6km. Kinross' La Coipa Gold Mine sits just east of Nessa.
Gold Hart Copper - Nessa - 7
To view an enhanced version of this graphic, please visit:
https://images.newsfilecorp.com/files/10786/311030_gold_hart_copper_-_nessa_-__7.jpg
Gold Hart Copper - Nessa - High Grades Copper Gold Surface - 8
To view an enhanced version of this graphic, please visit:
https://images.newsfilecorp.com/files/10786/311030_gold_hart_copper_-_nessa_-
_high_grades_copper_gold_surface_-_8.jpg
Gold Hart Copper- Nessa - Historic Mining Pits - 9
To view an enhanced version of this graphic, please visit:
https://images.newsfilecorp.com/files/10786/311030_gold_hart_copper-_nessa_-
_historic_mining_pits_-_9.jpg
Gold Hart - Tolita High Grade Gold Copper Trench On Large IP Anomaly - 10
To view an enhanced version of this graphic, please visit:
https://images.newsfilecorp.com/files/10786/311030_gold_hart_-
_tolita_high_grade_gold_copper_trench_on_large_ip_anomaly_-_10.jpg
About Tolita - Flagship Gold Copper Moly Silver Porphyry Target in Vicuña District
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-Vicuña district - for its uniquely high
grades of gold and copper on surface
3
. Geochemical surveys 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
3
.
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)
3
.
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
2
in size (recently expanded to 4.5km
2
) and "interpreted as a copper-gold or
gold-copper porphyry system that certainly warrants additional exploration and drilling
4
". Gold Hart
Copper has therefore launched diamond drilling and is fully funded for this planned campaign.
In the spring of 2025, the Company completed two holes of approximately 600m 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 multi-generation stockwork vein system hosted by a
series of multi-phase 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 indicates that the system may
even extend several hundred meters 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.
Gold Hart recently hosted a site visit which included tours of the Tolita & Nessa assets. Gold Hart board
and advisory board members including the honourable John R. Baird, Mark Kucher, and Aleta Shiff were
also in attendance. In this 360-degree immersive video — which allows you to interactively toggle views
— Gold Hart co-founder Jonathan Warner explains the diamond drilling process
https://cloud-
va.insta360.com/share/va/374Q7q0e1K66213G4421719040
also accessible on YouTube at
https://www.youtube.com/shorts/lw3fGWwQH2Q
.
About the Tolita Drill Campaign in the Vicuña District of Chile
Gold Hart geologists — including senior geologists Professor Dr. Jose Frutos, Enrique Viteri, Jonathan
Warner, and Rodrigo Diaz Tillería — 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 #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 600m each and encountered approximately 360m and 230m of gold,
copper, and moly porphyry mineralization, respectively.
Gold Hart returned to target #1 DDHTOL01
with a more powerful drill rig and completed a 1.053km drill hole, which returned approximately
738m of gold and copper mineralization.
Interestingly, the core continued to display encouraging
characteristics, with multiple intervals showing strong hydrothermal alterations and mineralization
consistent with a fertile porphyry-style environment. Gold Hart's geologists observed multiple generations
of veinlets and stockworks with varying intensities over intervals up to several hundred meters, banded
veinlets with thicknesses of several cm, and locally chalcopyrite and bornite mineralization has been
recognized in several of these veinlets. HART's geologists do not believe the drill intercepted the same
fault which caused a sterile zone in the middle of the initial 2 diamond holes. More recently, Gold Hart
completed a follow-on diamond drill hole — DDHTOL04 — which reached 551m. In addition to the