Mr. Enrico Gay reports

ALGO GRANDE IDENTIFIES ADDITIONAL SKARN MINERALIZATION 3KM SOUTH OF CERRO GRANDE, WITH SAMPLES ABOVE 3% COPPER AND CONFIRMS COPPER IN MULTIPLE TARGETS ON THE PROPERTY

Algo Grande Copper Corp. has provided an exploration update on its 100-per-cent-owned Adelita project in Sonora, Mexico. The update includes the successful completion of the company's phase 1 drill program at the flagship Cerro Grande skarn and the results of a property-wide surface prospecting campaign, during which 49 rock samples were collected, including 19 samples grading above 1 per cent copper.

The campaign confirmed copper-gold-silver mineralization across multiple target areas, including Potrero South, Las Trancas, Cerro Grande Northwest, La Molina and Mezquital, and led to the discovery of a new skarn zone at Potrero South target, located approximately three kilometres south of the Cerro Grande central discovery, with over 300 metres of surface exposure and samples exceeding 3 per cent Cu. Additionally, the program confirmed mineralization at targets generated through the company's machine learning exploration program, including the emerging La Molina target.

Enrico Gay, chief executive officer of Algo Grande, commented: "All the data we are processing at the Adelita project is pointing to a rich multideposit geological system, which includes skarn-porphyry and epithermal mineralization across the Adelita land package. The new skarn zone discovered has never been drilled and represents a new high-grade copper-gold-silver opportunity, three km away from Cerro Grande."

Phase 1 drill program: assays pending

All outstanding drill core from hole AG-GC-001, AG-GC-002 (450 metres to 600 metres), AG-GC-003 and AG-GC-004 from the recently completed phase 1 drill program has been delivered to ALS Hermosillo Ltd.:

• Core samples have been securely transported and logged.
• Sample preparation and geochemical analysis are under way.
• Assay results are expected in the coming weeks.

The phase 1 program was designed to expand and better define mineralization within the Cerro Grande skarn system while testing the vertical and lateral continuity of previously identified outcropping high-grade copper-gold-silver mineralization within a 300-metre strike zone. Results from the first 450 metres of drill hole AG-GC-002, previously reported on Feb. 5, confirmed the discovery of three previously unknown high-grade skarn horizons, with mineralization extending from surface to a depth of 390 metres and remaining open at depth.

In total, five high-grade skarn horizons define the Cerro Grande mineralized system. Intercepts from hole AG-GC-002 across these horizons returned more than 70 metres of cumulative mineralization, including 36 metres grading above 1 per cent Cu.

January, 2026, surface prospecting program: new mineral occurrences identified

In parallel with drilling, the company completed a successful property-wide prospecting and geological mapping campaign in January.

Key highlights from surface program:

• 19 rock samples above 1 per cent Cu and an outstanding sample with 41.4 per cent Cu;
• Identification of new mineral occurrences across the broader Adelita property;
• Discovery of an additional skarn occurrence located approximately three kilometres south from the Cerro Grande discovery, at the Potrero South target, with an outcropping extent of 300 metres at surface;
• Confirmation of mineralization on the northwest side of Cerro Grande, indicating that mineralization occurs on both limbs of the folded limestone unit hosting the Cerro Grande skarn system;
• First reconnaissance campaign completed at Las Tablas target, confirming mineralization and prospective geology in a previously underexplored area;
• Identification of tourmaline-breccias in the Mezquital porphyry target area;
• Advancement of geological knowledge of Las Trancas target, including an outstanding sample with 41.4 per cent copper, 1.97 grams per tonne gold and 1,570 g/t silver;
• Identification of new priority target -- La Molina, produced by machine learning algorithms, in an area with lack of geochemical and geophysical information.

A total of 49 samples were submitted to ALS Geochemistry Hermosillo laboratory for analysis. ALS is independent of the company.

These prospecting results confirm that the Adelita project hosts a district-scale multideposit system, with multiple mineralized centres beyond the currently drilled Cerro Grande central skarn discovery.

Potrero South skarn target

The identification of a second skarn occurrence approximately three kilometres south from Cerro Grande area with a surface expression exceeding 300 metres, reinforces management's view that Adelita represents a multicentre, district-scale copper-dominant skarn system with meaningful gold and silver byproduct credits. This target has never been drilled and will be incorporated into the company's phase 2 drill program planned for second quarter 2026.

In the target, 14 rock samples identified copper mineralization with three samples above 1 per cent Cu, four samples above one g/t Au, and a maximum value of 3.06 per cent Cu, 3.72 g/t Au and 232 g/t Ag.

Las Trancas epithermal target

A site visit to Las Trancas target confirmed copper and silver mineralization at surface, accompanied by hematitic and sericitic alteration, similar to that observed at the neighbouring Pan American Silver-owned Alamo Dorado mine. These observations have improved the company's understanding of the hydrothermal system and confirmed the presence of structurally controlled mineralization.

Historical trenching at the target returned 9.5 m of 16.4 g/t Au and 1.9 per cent Cu. Historically, this target has not been drilled with diamond drilling. Only stepout drilling has been conducted, without prior structural interpretation of the mineralized system.

Four rock samples confirmed the presence of copper mineralization, including one outcrop sample, two float samples from historical trenching and one float sample from a stock of old mining work. Notably, three of the four samples returned grades above 1 per cent Cu, with peak assays of 41.40 per cent Cu, 13.45 g/t Au and 1,570 g/t Ag. This represents a selective rock sample from an old stockpile.

Las Trancas target will be prioritized in coming exploration campaigns, including detailed geological mapping, systematic sampling and a first-pass drill program near the historical adit, which will be incorporated into the company's phase 2 drill program planned for second quarter 2026.

Cerro Grande northwestern target

Additional mineralization was confirmed on the northwestern side of the Cerro Grande, near historical drill hole AD-23-0034. The confirmation of mineralization on both limbs of the anti-cline supports the interpretation that the host limestone unit may be mineralized in multiple zones, with only the Cerro Grande zone being systematically tested by drilling.

In the target, eight rock samples from outcrops identified copper mineralization with maximum assay values of 0.98 per cent Cu, g/t 0.85 Au and g/t 31.40 Ag. These findings can add 1.5 kilometres of strike to the Cerro Grande discovery zone.

La Molina target

La Molina target is a new emerging target, defined during the prospecting campaign of January, 2026. Multiple high-grade rock sample and copper showing have been identified in this new target, not previously recognized historically. The target La Molina was one target recently identified in the machine learning exercise performed by GSM Geoscience. See the news release dated Jan. 9, 2026, where machine learning algorithms identified prospective areas, where detailed geochemical and geophysical data are absent. Algo Grande considers this a major step forward in the use of artificial intelligence technology to improve targeting and fast forward exploration.

In the target, five rock samples identified copper mineralization with two samples above 1 per cent Cu and a maximum assay value of 1.99 per cent Cu, 17.90 g/t Au and 44 g/t Ag.

Mezquital porphyry target

In the Mezquital porphyry target, a short reconnaissance visit was able to identify multiple copper mineralization float samples and tourmaline breccia float samples.

Tourmaline breccias are commonly associated with boron-rich magmatic-hydrothermal fluids and may represent hydrothermal breccia conduits related to intrusive systems. In porphyry environments, quartz-tourmaline breccias can develop during late-magmatic fluid release and are frequently observed along structural zones or at the margins of porphyry intrusions, where they act as pathways for hydrothermal fluids.

Although the samples identified at Mezquital are float and therefore their source has not yet been located, the presence of tourmaline breccia fragments together with copper-bearing float samples is considered encouraging. This association may indicate proximity to a magmatic-hydrothermal centre capable of generating copper-gold mineralization, consistent with exploration models for porphyry and related hydrothermal systems. Follow-up work will focus on locating the bedrock source of both the copper mineralization and the tourmaline breccias through systematic mapping, sampling and structural interpretation.

In the target, three rock float samples identified copper mineralization with one sample above 1 per cent Cu and a maximum assay value of 1.58 per cent Cu, 2.02 g/t Au and 82.10 g/t Ag.

All drill core and rock samples referenced in this news release were collected under the supervision of the company's geological team following industry standard protocols. Drill core was logged and sawed in half, with one-half retained for reference and the other submitted for analysis. Surface samples were grab samples of outcropping mineralization. Grab samples are selective in nature and may not be representative of the overall mineralization on the property.

Samples were securely transported to ALS Ltd. in Hermosillo, Sonora, Mexico, an independent ISO/IEC 17025 accredited laboratory. Samples were prepared by crushing and pulverizing prior to analysis.

Gold is analyzed by fire assay with an atomic absorption finish. Copper, silver and multielement analyses are determined using ICP methods following a four-acid digestion. Overlimit samples are reanalyzed using ore grade methods where applicable.

The company maintains a quality assurance/quality control program that includes the insertion of certified reference materials, blanks and duplicates at regular intervals. QA/QC results are reviewed by the qualified person prior to disclosure.

Trench results referenced in this release were generated by a previous operator. The company has obtained and reviewed the original certified analytical results from the independent laboratory. While the company did not conduct the trenching program, the qualified person considers the analytical results to be reliable for exploration purposes.

ICP Securities Inc. engagement

The company also announces the engagement of ICP to provide automated market-making services, including use of its proprietary algorithm, ICP Premium, in compliance with the policies and guidelines of the TSX Venture Exchange and other applicable legislation. The company will pay ICP a monthly fee of $7,500, plus applicable taxes, from its working capital. The agreement between the company and ICP was signed with an effective start date of March 2, 2026, and is for four months and shall be automatically renewed for subsequent one-month terms (each month called an additional term) unless either party provides at least 30 days written notice prior. There are no performance factors contained in the agreement and no stock options or other compensation in connection with the engagement. ICP and its clients may acquire an interest in the securities of the company in the future.

ICP is an arm's-length party to the company. ICP's market-making activity will be primarily to correct temporary imbalances in the supply and demand of the company's shares. ICP will be responsible for the costs it incurs in buying and selling the company's shares, and no third party will be providing funds or securities for the market-making activities.

Qualified person and data verification

The technical information disclosed in this news release has been reviewed and approved by Joao Rocha, EurGeol, vice-president of exploration of Algo Grande, a qualified person as defined by National Instrument 43-101. The qualified person has verified the data disclosed herein, including drilling, sampling, analytical and test data, through review of original assay certificates, drill logs, and quality assurance and quality control data.

About Algo Grande Copper Corp.

Algo Grande is a growth-focused mineral exploration company advancing the Adelita project, a district-scale, multisystem copper-gold-silver opportunity positioned in the prolific Arizona-Sonora copper belt.

The company is dedicated to unlocking the full mineral potential of this underexplored 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-Au-Ag skarn discovery, which exhibits strong continuity along a defined corridor extending over six kilometres. 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.

We seek Safe Harbor.