LUCA Intersects 7.9 Metres of 5.87 Grams PER Tonne AuEq from First Drillholes Collared at the Tahuehueto MINE IN over a Decade
Luca Mining Corp.
Suite 410, 1111 Melville Street
Vancouver, BC, V6E 3V6, Canada
NEWS RELEASE
LUCA INTERSECTS 7.9 METRES OF 5.87 GRAMS PER TONNE AUEQ
FROM FIRST DRILLHOLES COLLARED AT THE TAHUEHUETO MINE
IN OVER A DECADE
Vancouver, British Columbia, February 20, 2025 - Luca Mining Corp. (“ Luca” or the “Company”) (TSX -V: LUCA;
OTCQX: LUCMF; Frankfurt: Z68) is pleased to announce analytical results from the first four (4) underground
diamond drill holes of an ongoing 5,000 meter (“m”) exploration drill program at the Tahuehueto gold-silver mine in
Durango State, Mexico.
Drillhole DDH24-213 targeted a previously untested zone, approximately 20 m below the active mine workings of
Level 23, and intersected a new high-grade brecciated zone within the El Creston vein system that returned 7.9m of
2.59 g/t Au, 68.41 g/t Ag, 0.68% Cu, 2.32% Pb, and 2.73% Zn within a larger 22.3m zone of 1.47 g/t Au, 41.88 g/t
Ag, 0.44% Cu, 1.46% Pb, and 2.34% Zn from 201. 2m. Figure 1 presents the location of the drillholes and Table s 1
and 2 provide drill collar details.
To date, 11 holes have been completed for over 2,550m as part of the current exploration campaign which has a
primary objective to determine both vertical and lateral extent s of known mineralization within the Creston and
Perdido vein systems that are: a) proximal to current mine workings and b) interpreted to host un-tested extensions
of the mineralized structures. Through these efforts, it is anticipated that the Mineral Resource will be expanded -
thereby adding mineable resources into the near -term and medium term Tahuehueto Mine Plan. All 11 holes
completed thus far have intersected mineralized veins of the Creston and Perdido structures from previously
undrilled portions of deposit, further validating the continuous nature of these pervasive and mineralized structures.
Paul D. Gray, Luca VP Exploration , commented, "The Tahuehueto Team is extremely excited with the results from
these, the first drillholes that the Project has seen in over 1 2 years. The results from the four drill holes have
confirmed key exploration objectives”
1. Demonstrate mineralized veins consistence in untested areas outside of the resource envelope, where the
veins are expected to continue;
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2. Successfully discovered a new, High Grade Breccia Zone immediately beneath current mine workings, based
on our structural model for Tahuehueto. The Tahuehueto mineralizing system is a multi-stage mineralizing
event, with t he last stage of mineralization interpreted to represent high grade gold -silver breccia zones.
The discovery of this new High Grade Breccia Zone is an important “proof of concept” that wi ll allow our
exploration team to fully delineate a nd to make additional new discoveries of this style o f higher-grade
gold-silver mineralization; and,
3. Each of the holes drilled in this program has intersected mineralized vein material associated with the
Creston and Perdido structures, underscoring the upside potential of this long neglected mineralized system
and moreover , demonstrates that systematic drilling efforts will re sult in meaningful additions to the
Mineral Resources at Tahuehueto.”
Drillholes DDH24-212 through DDH24-215 have combined to successfully establish the continuity of the Creston
Mineralized Vein Structure within previously untested areas, to greater than 60m below Level 23. Next steps in
the execution of the 2025 Tahuehueto Exploration program include the additional underground drilling of areas
interpreted as open extensions of the Creston vein to the northeast of current mine workings and importantly
surface drilling in and around the Santiago Deposit, located ~950m from the eastern extent of the existing
Tahuehueto mine development and is ripe for expansion as it remains open along strike and to depth – recent
surface mapping at Santiago has identified the potential for higher grade brecciated zones within the limitedly
tested deposit. See Company News Release of April 26, 2022.
Table 1: Highlighted Diamond Drill Assay Results from DDH24-212 through DDH24-215
*True widths are estimated to be 85% of drilled intervals
** AuEq equation is: AuEq = Au + (Ag*0.0128) + (Cu%*1.2799) + (Pb%*0.2737) + (Zn%*0.3359)- $2,250 US$/oz Au, 28 US$/oz Ag,
9,260 US$/Tonne Cu , 1,980 US$/Tonne Pb and 2,430 US$/Tonne Zn, respectively.
Table 2: Drill Collar Locations and Details for Released Results
Hole_ID East WGS84 Z14 North WGS84 Z14 Elevation (m) Azimuth Dip
(°)
Total Depth (m)
DDH_24-212 337563.09 2812618.67 1,261.67 265 -34 226.80
DDH_24-213 337563.09 2812618.69 1,261.67 256 -13 250.05
DDH_24-214 337563.09 2812618.69 1,261.67 253 -44 279.45
DDH_24-215 337563.08 2812618.66 1,261.72 250 -54 320.30
About 2025 Tahuehueto Exploration Program
The Tahuehueto property comprises a large, epithermal gold/silver vein system that covers over 11 kilometres of
strike length of known mineralized veins/structures and this campaign is the first substantive exploration drill
program on the Property in over 12 years. Mineralization remains open along strike and at depth for the vast majority
Hole From (m) To (m)
Interval
(m)* Au (g/t) Ag (g/t) Cu (%) Pb (%) Zn (%) Au Eq**
DDH24-212 219.1 220.9 1.8 0.95 59.82 1.11 0.22 0.17 3.23
DDH24-213 201.2 223.4 22.3 1.47 41.88 0.44 1.46 2.34 3.75
including 213.3 221.2 7.9 2.59 68.41 0.68 2.32 2.73 5.87
DDH24-214 8.0 8.9 0.9 0.09 17.60 0.21 0.94 4.02 2.19
and 210.9 213.2 2.3 2.37 3.07 0.00 0.12 0.30 2.54
and 214.1 221.2 7.2 0.37 40.97 0.26 1.80 0.93 2.02
DDH24-215 11.5 13.1 1.7 0.09 22.17 0.29 2.09 2.05 2.00
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of the modeled Mineral Resource Areas and the objective of the current campaign will be a combination of in- fill
and step-out drilling to demonstrate the vertical and lateral extent of mineralization as well as to target high -grade
mineralized brecciated zones known to exist within the epithermal vein system. Recent mining in Level 23
encountered higher grade mineralization averaging 3.30 g/t Au over vein widths up to 20 met ers (with values up to
65.04 g/t Au) in ore shoots branching off the main Creston ve in (See news release dated May 29, 2024).
In addition to the four veins that comprise the mineralized resource, there are at least 14 additional prospective
veins or splays documented within concession area that have potential to host additional low-sulphidation
epithermal mineralization. In some cases, these prospective targets may represent extensions or continuations of
the currently defined resource. The Company estimates that there are more than 11 km of prospective vein
structures (measured along strike), compared to 4.5 km of mineralized vei ns that support current resource models.
Figure 2 below shows the relative location of prospective veins (yellow) and veins modeled for resources and
reserves (pink) within the Company's concession area (white).
About Luca Mining Corp.
Luca Mining (TSX-V: LUCA, OTCQX: LUCMF, Frankfurt: Z68) is a diversified Canadian mining company with two 100%-
owned producing mines within the prolific Sierra Madre mineralized belt in Mexico which hosts numerous producing
and historic mines along its trend. The Company produces gold, copper, zinc, silver and lead from these mines that
each have considerable development and resource upside.
The Campo Morado polymetallic VMS mine is an underground operation located in Guerrero Stat e. It produces
copper-zinc-lead concentrates with precious metals credits. It is currently undergoing an optimization program
which is already generating significant improvements in recoveries, grades, efficiencies, and cashflows.
The Tahuehueto epithermal gold and silver mine is a new underground operation in Durango State . The Company
is commissioning the Tahuehueto mill and expects to achieve commercial production in early 2025.
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Qualified Person
The technical information contained in this n ews release has been reviewed and approved by Mr. Paul D. Gray,
P.Geo., Vice President Exploration at Luca Mining . Mr. Gray is a Qualified Person for the Company as defined by
National Instrument 43-101.
Analytical Method and Quality Assurance/Quality Control Measures
All drill core splits reported in this news release were analysed by Bureau Veritas of Durango, Mexico, utilizing the
Multi-Acid digestion ICP-ES 35-element MA300 analytical package with FA- 430 30-gram Fire Assay with AAS finish
for gold on all samples. Au over-limits from FA -430 are re -analyzed by FA530 30- gram Fire Assay with Gravimetric
finish. Ag over -limits from ICP MA300 analytical package are re -analyzed by FA530 30 -gram Fire Assay with
Gravimetric finish. Similarly, Cu, Pb and Zn over -limits from IC P MA300 analytical package are re -analyzed by ICP
Multi-Acid digestion MA370 package. All core samples were split by core saw on -site at Luca’s core processing
facilities at the Tahuehueto Mine. Once split, half samples were placed back in the core boxes with the other half of
split samples sealed in poly bags with one part of a three -part sample tag inserted within. Samples were collected
by Bureau Veritas at the Tahuehueto Mine site and transported to Bureau Veritas’ Durango Laboratory, where
samples are prepared to a 250-gram pulp and analyzed for Gold by Fire assay with pulps shipped to Bureau Veritas’s
Analytical laboratory in Vancouver, B.C., for final ICP chemical analysis. A robust system of standards, 1/4 core
duplicates and blanks was implemented in the 2024-2025 exploration drilling program and is monitored as chemical
assay data become.
On Behalf of the Board of Directors
(signed) “Dan Barnholden”
Dan Barnholden, Chief Executive Officer
Contact Information:
Sophia Shane
Director of Corporate Development
+1 604 306 6867
Glen Sandwell
Corporate Communications Manager
For more information, please visit: www.lucamining.com
Cautionary Note Regarding Forward-Looking Statements
It should be noted that Luca declared commercial production at Campo Morado prior to completing a feasibility study of mineral
reserves demonstrating economic and technical viability. Accordingly, readers should be cautioned that Luca’s production
decision has been made without a comprehensive feasibility study of established reserves such that there is greater risk and
uncertainty as to future economic results from the Campo Morado mine and a higher technical risk of failure than would be the
case if a fea sibility study were completed and relied upon to make a production decision. Luca has completed a preliminary
economic assessment (“PEA”) mining study on the Campo Morado mine that provides a conceptual life of mine plan and a
preliminary economic analysis based on the previously identified mineral resources (see news releases dated November 8, 2017,
and April 4, 2018).
Statements contained in this news release that are not historical facts are “forward -looking information” or “forward -looking
statements” (collectively, “Forward -Looking Information”) within the meaning of applicable Canadian securities laws. Forward
Looking Information includes, but is not limited to, estimated timing of the 2025 Tahuehueto exploration program and other
possible events, conditions or performance that are based on assumptions about the proposed exploration program and its
anticipated results; the timing and costs of future activities on the Company’s properties, such as production rates and increases;
success of exploration, development, and timing for processing at its own mineral processing facility on the Tahuehueto proje ct
site. In certain cases, Forward -Looking Information can be identified using words and phrases such as “plans,” “expects,”
“scheduled,” “estimates,” “forecasts,” “intends,” “anticipates” or variations of such words and phrases. In preparing the Forward-
Looking Information in this news release, the Company has applied several material assumptions, including, but not limited to,
that the Company will be able to raise additional capital as necessary; the current exploration, development, environmental and
other objectives concerning the Tahuehueto Project can be achieved; the commissioning of the Tahuehueto mill will proceed as
planned in 2025; the continuity of the price of gold and other metals and economic and political conditions. Forward- Looking
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Information involves known and unknown risks, uncertainties and other factors which may cause the actual results, performance,
or achievements of the Company to be materially different from any future results, performance or achievements expressed or
implied by the Forward- Looking Information. There can be no assurance that Forward- Looking Information will prove to be
accurate, as actual results and future events could differ materially from those anticipated in such statements. Accordingly,
readers should not place undue reliance on Forward- Looking Information. Except as required by law, the Company does not
assume any obligation to release publicly any revisions to Forward-Looking Information contained in this news release to reflect
events or circumstances after the date hereof or to reflect the occurrence of unanticipated events.
Neither 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.