Algo Grande Reports Results from Completed Phase I Drill Program at Cerro Grande Skarn
Algo Grande Reports Results from Completed Phase I Drill Program at Cerro Grande
Skarn
Highlights:
• Hole AG_GC_003 intersected a broad zone of strong copper-gold-silver
mineralization, including 18.2 m @ 1.8% CuEq (1.2% Cu, 28.2 g/t Ag, 0.7 g/t Au),
including 3.5 m @ 3.9% CuEq (2.4% Cu, 61.1 g/t Ag, 1.8 g/t Au).
• Consistent Cu-Au-Ag mineralization with 57 m above 1.8% CuEq between multiple
intervals, confirming a vertically stacked high-grade skarn system (see Table 1)
• Five skarn horizons identified, including three newly discovered horizons
• Increased Molybdenum values identified in intrusive-related intervals, defining a
metal zonation pattern consistent with a porphyry-skarn system
• System remains open along strike and at depth, with vectors for expansion and
discovery
VANCOUVER, BC – April 2 – Algo Grande Copper Corp. (“Algo Grande ” or the “Company ”)
(TSX-V: ALGR | OTC: ALGRF | FRA: KM00) reports assay results from the remaining three
drill holes of its inaugural Phase I drill program at the Cerro Grande Skarn target within the
Adelita Project, Sonora, Mexico.
The Phase I program consisted of four drill holes totaling 1,998 metres, designed to
confirm high-grade skarn mineralization at depth. A review of historical data suggested the
skarn zone may be thicker than previously understood, and results from this program
confirm that mineralization extends beyond the limits of earlier drilling, which only partially
tested the system, highlighting expansion potential at depth and along the broader
footprint.
These results confirm the presence of an outcropping, vertically extensive copper-silver-
gold skarn system, with increasing evidence supporting a genetically related porphyry
system at depth.
Table 1 - Significant Intersects
Note: Copper equivalent (CuEq) for drill intersections is calculated based on US$ 4.75/lb Cu, US$ 3,000/oz
Au, and US$ 45/oz Ag, with 80% metallurgical recoveries assumed for all metals due to the early-stage nature
of the project and absence of metallurgical data. The formula is: CuEq% = 0.8*(Cu % + (0.92 * Au g/t) +
(0.0138 * Ag g/t)). The CuEq values are provided for comparative purposes only and do not imply that all
metals will be recovered or that the reported grades will be realized in a production scenario. Intervals
reported are downhole lengths; true widths are unknown. Drill hole AG_GC_001, AG_GC_002, AG_GC_003
and AG_GC-004 have been collared at approximate coordinates 739,086E and 2,961,834N (WGS84, Zone 12)
at an elevation of 468 metres above sea level. AG_GC_001 was drilled with an azimuth of 250º and a dip of -
65º. AG_GC_002 was drilled with an azimuth of 250º and a dip of -50º, AG_GC_003 was drilled with an
azimuth of 240º and a dip of -50º, AG_GC_004 was drilled with an azimuth of 260º and a dip of -50º.Drilling
commenced on November 23, 2025 and was completed on February 04, 2026
Drilling was completed using diamond core drilling techniques. Core recovery for all drill holes averaged
greater than 95% and is not believed to have materially affected the accuracy or reliability of the assay
results. Core was logged, photographed, and sampled using standard industry practices. Samples were
prepared and analyzed at a certified analytical laboratory using industry-standard methods. Quality
assurance and quality control procedures included the insertion of blanks, standards, and duplicates at
regular intervals.
Enrico Gay, CEO of Algo Grande Copper, commented: “These results validate our thesis
that the Cerro Grande Skarn has the potential to scale into a large, high-grade skarn
system. The identification of multiple stacked skarn horizons, combined with strong metal
zonation and molybdenum vectoring, reinforces our view that we are operating within a
large-scale porphyry-skarn system. With Phase I complete, we are now advancing toward
Phase II drilling, focused on expanding the Cerro Grande footprint along strike, testing
additional skarn targets across the broader 6-kilometre corridor, and advancing toward the
potential porphyry source at depth.”
Confirmation of a Multi -Horizon Skarn System
Drill holes AG_GC_001 through AG_GC_004 collectively confirm the presence of a copper-
silver-gold skarn system at Cerro Grande (Figure 1). While AG_GC_001 did not intersect
significant mineralization, holes AG_GC_002, AG_GC_003, and AG_GC_004 intersected
multiple intervals of skarn-hosted mineralization, confirming both lateral and vertical
continuity of the system (Figure 2). Notably, hole AG_GC_003 returned the strongest
intercept of the program, despite experiencing drilling deviation and not fully reaching the
planned target zone.
Figure 1 - Plain view of drill holes and best intersects
Figure 2 - Cross-section of drill holes from inaugural drilling campaign and best intersects
Note: Certain drill hole data presented herein is historical in nature and was completed by previous operators,
including Minaurum Gold Inc., Ocean Park Ventures Corp., and Infinitum Copper Corp., between 2010 and
2023. The historical drilling consists of diamon d drill holes, with samples analyzed at ALS laboratories in
Hermosillo, Mexico and Vancouver, Canada, and by ALG Global Geochemistry using ICP -MS and Fire Assay
methods.
A Qualified Person has reviewed and verified the historical data, including drill collar locations, downhole
orientation (dip and azimuth), sampling procedures, and assay methodologies. Collar locations and drill
orientations were validated in the field, and the analytical methods used are consistent with industry-standard
practices. The Qualified Person has also reviewed the available QA/QC information and considers the data to
be of acceptable quality for the purposes of this disclosure.
While the historical data is considered reliable and suitable for geological interpretation and targeting, a
Qualified Person has not completed sufficient work to classify the historical information as current mineral
resources or mineral reserves, and the issuer is not treating the historical data as current mineral resources or
mineral reserves.
Mineralization is hosted within two dominant skarn types: (i) magnetite-rich skarns
characterized by abundant chalcopyrite, and (ii) garnet-dominant skarns hosting
chalcocite and bornite as the principal copper sulphides. This variation in mineral
assemblages reflects evolving conditions within the hydrothermal system and is
consistent with metal zonation typically observed in porphyry-related skarn environments.
When considering all the mineralization intersected, a total of 104.76 meters above 0.8%
CuEq have been intersected between the 4 drill holes. These intervals incorporate both
skarn-hosted mineralization and mineralized wall rocks and include internal dilution. As
such, they are not presented as discrete skarn intercepts but highlight the overall scale
and continuity of the mineralized system.
Importantly, drilling has now defined at least five distinct skarn horizons within the system.
The presence of multiple stacked skarn horizons is significant, as it materially increases
the vertical extent and potential tonnage of the system relative to a single-horizon model.
In analogous porphyry-skarn systems, stacked horizons reflect multiple mineralizing
events and evolving fluid pathways, and can locally coalesce into thicker, higher-grade
mineralized zones.
The Cerro Grande skarn system is exposed at surface, confirming that mineralization is not
deeply buried and allowing direct observation and targeting of the system. The
combination of surface exposure, demonstrated vertical continuity, and multiple stacked
horizons supports the interpretation of a large-scale, long-lived hydrothermal system with
strong potential for tonnage growth through both lateral expansion and depth extension.
Metal Zonation and Porphyry Vectoring
The drilling results highlight a clear metal zonation within the system. The strongest skarn
intercepts are characterized by elevated copper, silver, and gold grades, consistent with
typical skarn deposits proximal to porphyry centers.
Several molybdenum-bearing intervals (AG_GC_002: 288.40 m to 289.44 – 1.04 m @ 1440
Mo; 333.0m to 333.8m - 0.8 @ 2820 Mo; 545.83m – 546.35 0.52m @ 1000 ppm Mo;
AG_GC_004: 274.5 -275.4 0.9m @ 521 ppm Mo) have been identified across the drill holes,
with values reaching up to 2,820 ppm on AG_GC_002 and above 500ppm on AG_GC_004.
These intervals are spatially distinct from the highest-grade copper-silver-gold skarn
mineralization and are commonly associated with intrusive phases, including andesitic
porphyry fingers and potassic alteration halos around quartz-calcite veins (Figure 3).
This decoupling of molybdenum from skarn-hosted copper mineralization is consistent
with established porphyry-skarn systems, where molybdenum enrichment occurs closer
to or within the causative intrusive center. These results provide a strong geochemical
vector toward a potential porphyry source at depth.
Figure 3. 3D schematic illustrating the proximity relationship between the Cerro Grande
Cu-Ag-Au skarn deposit and the modelled resistivity anomaly, interpreted as a porphyry
intrusion at depth.
Exploration Implications
The results from the inaugural drill program confirm that Cerro Grande is an outcropping,
vertically extensive, multi-horizon skarn system with clear evidence of metal zonation and
a potential porphyry driver.
Importantly, the system remains open laterally and at depth, with mineralization now
confirmed well below historical drilling limits and along the extent of the currently defined
strike.
Key implications include:
• Increased confidence in the continuity and scale of skarn mineralization;
• Expansion of the mineralized footprint both laterally and vertically;
• Discovery of new mineralization at depth beyond historical drilling;
• Identification of robust geochemical vectors toward a potential porphyry system;
and
• Enhanced targeting framework for follow-up drilling
Building on the success of Phase I, the Company is now advancing a systematic, district-
scale exploration strategy across the Adelita Project. Upcoming milestones are expected
to include completion of property-wide LiDAR and drone magnetic surveys, results from a
systematic soil geochemistry program, and the definition of new drill targets along the 6-
kilometre skarn corridor.
The Phase II drill program, scheduled to commence in May 2026, will focus on step-out
drilling to expand known skarn horizons, deeper drilling to test porphyry targets, and initial
testing of newly defined district-scale targets.
QUALITY ASSURANCE / QUALITY CONTROL
All drill core samples were prepared and analyzed at ALS Laboratories, an independent,
internationally accredited laboratory , located in Hermosillo, Mexico and Vancouver,
Canada. Sample preparation was completed using ALS preparation methods CRU-31
(crushing), SPL-31 (splitting), and PUL -31 (pulverizing), resulting in a nominal pulp with at
least 85% passing a 75-micron sieve.
Multi-element analyses were completed using the ME -MS61L method, which involves a
four-acid digestion (hydrochloric, nitric, perchloric, and hydrofluoric acids) followed by
analysis using ICP -MS and ICP -AES techniques. The four -acid digestion is considered a
near-total digest for most base metal sulfides and associated gangue minerals. Gold was
analyzed using the AU-AA24 method, consisting of a 30 -gram fire assay fusion with an
atomic absorption spectroscopy (AAS) finish. Samples returning results above the upper
detection limits of the ME -MS61L method were re-assayed using appropriate over -limit
procedures, including AG-OG62 for silver and ME-OG62, Cu-OG62, Pb-OG62, and Zn-OG62
for base metals, as applicable.
ALS Laboratories employ internal quality control procedures including the routine insertion
of certified reference materials, blanks, and duplicates at regular intervals. Additionally, the
Company implemented an independent quality assurance and quality co ntrol program
through the systematic insertion of blind certified reference materials and blank samples
into the sample stream. Results from QA/QC samples were reviewed on receipt and found
to be within acceptable limits.
Qualified Person
The scientific and technical information disclosed in this news release has been reviewed
and approved by João Rocha, EurGeol, Vice President of Exploration of Algo Grande Copper
Corp., a Qualified Person as defined by National Instrument 43-101.
The Qualified Person has conducted appropriate data verification procedures on both
current and historical drilling data disclosed herein. Verification activities included review
of drill collar locations, downhole survey data, sampling procedures, and analytical results.
Collar locations and drill orientations were validated in the field, and assay data were
reviewed for consistency and compliance with industry -standard analytical methods,
including ICP-MS and fire assay. The Qualified Person also reviewed available QA/QC data
and considers the data to be of acceptable quality for the purposes of this disclosure.
The Qualified Person considers the data verification procedures undertaken to be
appropriate and sufficient to support the scientific and technical information disclosed in
this news release.
OTC Symbol Change
Algo Grande is additionally pleased to announce a symbol change from “KNDYF” to
“ALGRF” on the OTC Markets (“OTC”). Algo Grande’s common shares trade under the new
symbol on OTC effective as of April 1, 2026. Algo Grande’s common shares continue to
trade on the TSX Venture Exchange under the symbol “ALGR”. U.S. investors can find
current financial disclosure and Real-Time Level 2 quotes for the Company on
www.otcmarkets.com.
About Algo Grande Copper Corp.
Algo Grande Copper Corp. is a growth-focused mineral exploration company advancing
the Adelita Project, a district-scale, multi-system copper-silver-gold opportunity
positioned in the prolific Arizona-Sonora copper belt.
The company is dedicated to unlocking the full mineral potential of this under-explored
corridor through disciplined data-driven exploration, technical excellence, and a firm
commitment to value creation for shareholders. The 5,895-hectare Adelita Project is
anchored by the high-grade Cerro Grande Cu-Ag-Au skarn discovery, which exhibits strong
continuity along a defined corridor extending over 6 kilometers. Reprocessing of legacy
geophysical data and field mapping indicate the presence of a potential porphyry system
at depth, suggesting a classic skarn-porphyry mineralization model similar to major
deposits found throughout northwestern Mexico.
ON BEHALF OF ALGO GRANDE COPPER CORP.
Enrico Gay
Chief Executive Officer
For more information, please contact:
E-mail: [email protected]
Website: www.algo-grande.com
NEITHER THE TSX VENTURE EXCHANGE NOR ITS REGULATION SERVICES
PROVIDER (AS THAT TERM IS DEFINED IN THE POLICIES OF THE TSX VENTURE