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Algo Grande Begins Earthworks in Preparation for Phase II Drill Program at Adelita and Announces Grant of Options and Restricted Share Units

Drill Results Corporate Updates

LEGAL_49309894.2

Algo Grande Begins Earthworks in Preparation for

Phase II Drill Program at Adelita and Announces Grant

of Options and Restricted Share Units

VANCOUVER, BC – April 16, 2026 – Algo Grande Copper Corp. (“Algo Grande” or the

“Company”) (TSX-V: ALGR | OTC: ALGRF | FRA: KM00) announces the engagement

of Major Drilling Group International Inc. to execute an approximately 8,000 metre

Phase II drill program at its Adelita Project in Sonora, Mexico, and has commenced

earthworks in preparation for drilling, including construction of drill pads across multiple

high-priority target areas.

Initial site preparation is now underway and includes the rehabilitation of existing access

roads, and development of access routes to support efficient mobilization. These

activities are focused on improving accessibility across both sides of the Cerro Grande

skarn target area, where initial drilling will be concentrated.

Approximately 30 drill pad locations (7-metre by 7-metre) are currently being prepared

across the Cerro Grande skarn and its extensions, including the south and north-west

zones, as well as additional high-priority targets such as Cerro Potrero South - where

the Company has identified a ~300 metre skarn outcrop located approximately 3

kilometres from Cerro Grande - and Las Trancas, an epithermal target showing

significant Ag-Cu-Au mineralization. Together, these targets support a broad, district-

scale drill campaign.

Enrico Gay, CEO of Algo Grande Copper, commented: “With Major Drilling engaged

and earthworks now underway at Adelita, the Company is advancing toward its Phase II

drill program. Approximately 30 drill pads are being prepared across Cerro Grande and

multiple high-priority targets, positioning the Company to test and expand the scale of

high-grade copper mineralization along the 6-kilometre limestone corridor. The

completion and integration of LiDAR, magnetic, and geochemical programs will be key

in finalizing drill targets for the upcoming campaign.”

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Figure 1. Property-wide LiDAR survey.

Exploration Update

The Company also provides an update on ongoing exploration activities at its Adelita

Project in Sonora, Mexico, where multiple key programs - including a property-wide

LiDAR survey, an ongoing drone magnetic survey, and a district-scale geochemical

sampling program - have been completed or are advancing toward completion. These

datasets are expected to support a highly targeted Phase II drill program scheduled to

commence in May.

The LiDAR survey has been completed, with final high-resolution data processing and

deliverables currently pending.

The drone magnetic survey is approximately 60% complete. Survey work was

temporarily paused due to equipment damage and is expected to resume in the coming

weeks. Upon completion, the survey will provide additional insight into subsurface

structures and potential controls on mineralization.

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The Company has also completed a district-scale soil sampling program, collecting a

total of 1,685 samples across approximately 8 square kilometres. Samples are currently

being analyzed using handheld XRF technology, with approximately the top 10% of

anomalous results to be submitted to an independent certified laboratory for detailed

geochemical analysis.

Upon integration of these datasets, the Company expects to provide an update in the

coming weeks outlining prioritized drill targets for the Phase II program.

Option and RSU Grants

Algo Grande additionally announces that it has granted a total of 1,760,000 incentive

stock options (the “Options”) and 2,050,000 restricted share units (“RSUs”) to certain

directors, officers, employees and consultants of the Company, pursuant to the

Company’s stock option plan and long-term incentive plan.

Each Option is exercisable for one common share at an exercise price of $0.65 for a

period of three years from the date of grant. 50% of the granted Options will vest in six

months, and the remaining 50% of the Options will vest six months thereafter. All RSUs

will vest one year from the date of grant.

The grant of Options and RSUs remains subject to approval of the TSX Venture

Exchange.

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.

Algo Grande 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:

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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

EXCHANGE) ACCEPTS RESPONSIBILITY FOR THE ADEQUACY OR ACCURACY

OF THIS RELEASE.

Cautionary Statement on Forward-Looking Information

This news release contains statements and information that, to the extent that they are

not historical fact, constitute “forward-looking information” within the meaning of

applicable securities legislation. Forward-looking information is based on the reasonable

assumptions, estimates, analysis and opinions of management made in light of its

experience and its perception of trends, current conditions and expected developments,

as well as other factors that management believes to be relevant and reasonable in the

circumstances at the date that such statements are made, but which may prove to be

incorrect. Forward-looking information involves known and unknown risks, uncertainties

and other factors that may cause the actual results, performance or achievements of the

Algo Grande to differ materially from any future results, performance or achievements

expressed or implied by the forward-looking information, including, but not limited to,

statements relating to the Company’s exploration plans including the planned Phase II

drilling program, results of surveys and the geochemical sampling program, and those

listed in filings made by Algo Grande with the Canadian securities regulatory authorities

(which may be viewed at www.sedarplus.ca). Accordingly, readers should not place

undue reliance on any such forward-looking information. Further, any forward-looking

statement speaks only as of the date on which such statement is made. New factors

emerge from time to time, and it is not possible for Algo Grande’s management to

predict all of such factors and to assess in advance the impact of each such factor on

Algo Grande’s business or the extent to which any factor, or combination of factors, may

cause actual results to differ materially from those contained in any forward- looking

statements. Algo Grande does not undertake any obligation to update any forward-

looking information to reflect information, events, results, circumstances or otherwise

after the date hereof or to reflect the occurrence of unanticipated events, except as

required by law including securities laws.