Drilling Underway at Mirasol’s Sobek Copper-Gold Project in the Vicuña District, Chile
NEWS RELEASE
Suite 1150 – 355 Burrard Street, Vancouver, B.C. Canada, V6C 2G8
Tel: +1 604 602 9989 E-mail: [email protected]
www.mirasolresources.com
January 22, 2026
Shares Issued and Outstanding: 88,540,939
TSX-V: MRZ
OTC: MRZLF
Drilling Underway at Mirasol’s Sobek Copper-Gold Project
in the Vicuña District, Chile
• Drilling is in progress at the 46 South Target located just 7 km west of Filo del Sol in
the Vicuña District, at the south end of Sobek Central
• The 46 South target sits on the margin of a district scale magnetic high where
coincident mag-susceptibility, MT anomalies and ground-based IP responses lie
directly below a large geochemical soil survey anomaly where hydrothermal and
tourmaline breccias outcrop on surface
• Recently completed d eep Vectoring IP and MT geophysical survey has defined a
shallow coincident IP anomaly with strong MT-resistivity and chargeability
responses interpreted as a High Sulphidation Epithermal (HSE) target, underlain by
a strong cylindrical magnetic anomaly
VANCOUVER, BC, January 22, 2026 — Mirasol Resources Ltd. (TSX -V: MRZ) (OTC: MRZLF) (the “Company” or
“Mirasol”) is pleased to announce that drilling is in progress at the Company’s 100%-owned Sobek Copper-Gold-
Silver Project (“Sobek” or “the Project”) in the Vicuña District of Chile. The 46 South target lies at the southern
end of a 3-km N-S trending corridor hosting alteration and mineralization at Sobek Central that runs parallel to
Filo del Sol which is only ~7 km to the east.
Results from t he ground based Deep Vectoring IP and MT geophysical survey launched late last year ( news
release dated December 1, 2025 ) has defined a shallow coincident IP anomaly with strong MT-resistivity and
chargeability responses which starts at approximately 200m below surface and continue s down over 500m
depth. These responses are interpreted as High Sulphidation Epithermal (HSE) or a lithocap root above a strong
magnetic anomaly potentially related to an intrusive/porphyry at depth.
“The recently completed Deep Vectoring IP and MT results i ntegrated with the previous results from the IP
ground geophysics and soil sampling survey combined with the underlying airborne magnetic and MT anomalies,
coupled with the hydrothermal and tourmaline breccias encountered on surface reinforce the potential for 46
South to represent a significant mineralized system,” Mirasol’s President and CEO Tim Heenan stated . “The 46
South target already stood out as the most technically compelling target we have defined at our Sobek project.
The results from the latest geophysical survey have strengthened the shallow HSE portion of the target , which
starts at just 200m below surface, and will be the primary focus of this maiden drill hole.”
The current drilling strategy prioritizes the IP 10–20 mV/V range chargeability corridor adjacent to the resistive
core, aiming to test the coincident resistive–chargeable architecture and its relationship to the mapped HSE
system, while minimizing reliance on peak chargeability alone as a vector to mineralization. The planned drillhole
has a projected depth of approximately 1000m, and is optimized to test structural intersections, with a strong
Suite 1150 – 355 Burrard Street, Vancouver, B.C. Canada, V6C 2G8
Tel: +1 604 602 9989 E-mail: [email protected]
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focus on intersecting the NW –WNW set of structures, while at the same time testing the resistive core and
sulphide halo at depth, adjacent to the strong magnetic anomaly within the deeper target zone.
Advancing Towards Drilling the 46 South Target
The Sobek Project is located in Chile within the Vicuña District which hosts both the Filo del Sol deposit and the
Lunahuasi discovery across the border in Argentina. The 46 South target lies at the southern end of a 3 -km N-S
trending corridor hosting alteration and mineralization that runs parallel to Filo del Sol which is only ~7 km to
the east.
Figure 1: Vicuña District - Sobek Property Package including the 46 South Target
Located at the south end of Sobek Central, the 46 South target resides on the southern margin of a district-scale
magnetic high where both the airborne MT and magnetics surveys outlined distinct cylindrical anomalies. The
grid-based soil survey outlined a coincident prominent, large and coherent copper -gold-moly geochemical
anomaly on surface that directly overlays IP -PDP resistivity and chargeability responses from IP ground
geophysics surveys completed late last season. Structurally controlled tourmaline breccias and hydrothermal
breccias were also identified while prospecting and mapping in the target area ( news release dated December
1, 2025).
New Proven Geophysical Survey Refines 46 South Drill Target
To further resolve the geometry of these shallow IP/Res domains and the deeper MT responses, an innovative
and proven Deep Vectoring IP and MT geophysical survey was completed. The survey was designed to refine the
characterization of the existing resistive/chargeable domains at shallow levels and the deeper MAG response,
providing the vectoring required to refine final drill targets. Comparable approaches at projects such as A TEX´s
Valeriano, directly south of Sobek in Chile, and Aldebaran’s Altar in Argentina have demonstrated the
effectiveness of this technology in telescoped porphyry-epithermal systems.
Integrating the recently delivered Vector IP (3D inversion) with ground MT (3D resistivity) with the previously
completed PDP/IP, airborne/ground magnetics (susceptibility modelling), and existing geology/alteration
mapping increased the ranking of the shallow HSE target located approximately 200m below surface and which
extends to over 500m depth. This new compilation has revealed a coherent resistive core (“dome/pipe”) as
defined by MT, with the resistivity values commonly >2,000 ohm-m, interpreted as representing a silica-rich High
Sulphidation Epithermal (HSE) core / silica-rich breccia or silicified structural zone.
Figure 2: Sobek Central - 46 South Shallow HSE Drill Target Underlain by a Strong Magnetic Anomaly
The Vector IP chargeability has also outlined a coincident structurally controlled highly chargeability sulphide
halo, including a “chargeability neck” (~10 –20 mV/V) spatially associated with the NW structural corridor,
supporting the interpretation of a focused feeder -style architecture beneath the mapped HSE alteration
footprint. A higher-chargeability core (>25–30 mV/V) is recognized toward the southern part of the system, and
this domain is interpreted to represent a more pyrite -rich zone, although coul d potentially be a possible
structural zone with high sulphide concentration where copper-bearing sulphides could be present.
Geochemical vectoring has defined two domains (structural blocks) separated by the NW structural orientation,
which are:
• The southern domain ( structural block) showing the strongest Copper -Gold-Moly soil footprint with
coherent multi-element associations consistent with HSE fluid pathways and sulphide zoning, including
Arsenic-Antimony-Mercury and Moly-Rhenium, and Bismuth -Tellurium-Selenium in the broader outer
halo.
• The northern domain ( structural block) associated with the tourmaline breccia`s and a distinct
geophysical character, interpreted as reflecting magmatic fluid input and/or a deeper-seated intrusive
center.
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Tel: +1 604 602 9989 E-mail: [email protected]
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High-Profile Vicuña Copper-Gold-Silver District
Mirasol staked the Sobek Project in 2016 based on prospective local geology and attractive structural
architecture prior to the 2021 discovery of the high -grade feeder zone at the Filo del Sol gold -copper deposit
and the 2023 discovery of Lunahuasi. The consolidated Sobek Project is located on the same regional N -S
trending structural corridor and just 7km to the west of the Filo del Sol deposit and 3 km to the southwest of
NGEx Mineral’s discovery at Lunahuasi.
Sobek is located within a prospective geological environment with a compelling north -northeast trending
mineralized structural corridor crosscut by a north-northwest trending deep-seated trans-cordilleran lineament.
This is a common structural configuration hosting numerous Andean metal deposits in both Chile and Argentina.
About Mirasol Resources Ltd
Mirasol is a strategically positioned exploration company with over 20 years of operating, permitting and
community relations experience in the mineral rich regions of Chile and Argentina. Mirasol is currently self-
funding exploration at the flagship Sobek Copper-Gold Project located in the Vicuña Copper-Gold-Silver District
of northeast Chile while continuing to advance a strong pipeline of highly prospective early and mid -stage
projects.
For further information, contact:
Tim Heenan, President & CEO
or
Troy Shultz, Vice President Investor Relations
Tel: +1 (604) 602-9989
Email: [email protected]
Website: www.mirasolresources.com
Qualified Person Statement: Mirasol’s disclosure of technical and scientific information in this press release has been
reviewed and approved by Tim Heenan (MAIG), the President for the Company, who serves as a Qualified Person under the
definition of National Instrument 43-101.
Forward Looking Statements: The information in this news release contains forward looking statements that are subject
to a number of known and unknown risks, uncertainties and other factors that may cause actual results to differ materially
from those anticipated in our forward -looking statements. Factors that could cause such differences include: changes in
world commodity markets, equity markets, costs and supply of materials relevant to the mining industry, change in
government and changes to regulations affecting the mining indus try and to policies linked to pandemics, social and
environmental related matters. Forward-looking statements in this release include statements regarding future exploration
programs, operation plans, geological interpretations, mineral tenure issues and m ineral recovery processes. Although we
believe the expectations reflected in our forward -looking statements are reasonable, results may vary, and we cannot
guarantee future results, levels of activity, performance or achievements. Mirasol disclaims any obl igations to update or
revise any forward-looking statements whether as a result of new information, future events or otherwise, except as may
be required by applicable law.
Neither the TSX Venture Exchange nor its Regulation Services Provider (as that term is defined in the policies of the TSX
Venture Exchange) accepts responsibility for the adequacy or accuracy of this release.
Figure 1: Vicuña District - Sobek Property Package including the 46 South Target
Sobek
North
Sobek
Central
Lunahuasi
Filo Sur
Filo Del Sol
El Potro
Los Helados
Chile Argentina
VN-Zone
Rosita
46 South
7 km
Josemaria
Sobek
South
Mirasol
Sobek & Rosita
Properties
TSX-V: MRZ OTC: MRZLF
ARGENTINA
Sobek
Figure 2: Sobek Central - 46 South Shallow HSE Drill Target Underlain by a Strong Magnetic Anomaly
N
Magnetic Susceptibility
S46
-
DDH
-
A
46 South Target
Plan View: Magnetic Susceptibility Slice
Tourmaline Breccias
Silica
-
Alunite Breccia
0 500
Meters
NE
S46
-
DDH
-
A 25-30
20-25
15-20
Vector IP-PDP
Chargeability
(mV/V)
Deep Magnetic
High
SW
Silica
-
Alunite Breccia
Southern NW Corridor
0 1000
Meters
NW Structural Corridor
Tourmaline Breccia
(magmatic
-
hydrothermal
affinity)
500 - 508
150 - 500
75 - 150
25 - 75
<25
Cu ppm
Rockchips
150 - 275
75 - 150
55 - 75
40 - 55
30 - 40
4 -30
Cu ppm
Soil
<4
1000m EOH
Silica
-
Alunite Breccia
North Domain
-
Magnetic High
South Domain
-
Geochemical Vector
46 South Target
Section View: Drill Proposal + integrated MT Resistivity + Vector IP Chargeability