Mr. Enrico Gay reports

ALGO GRANDE COPPER SECURES FIVE-YEAR SURFACE ACCESS AGREEMENT WITH EJIDO PALOS CHINOS AT THE ADELITA PROJECT

Algo Grande Copper Corp., through its wholly owned Mexican subsidiary, Exploraciones Margarita SA de CV, has entered into a five-year temporary occupation agreement with Ejido Palos Chinos y su Anexo El Guamuchil, municipality of Alamos, Sonora, Mexico. The agreement secures surface access to approximately 1,796 hectares of the ejido's common use lands within the company's 100-per-cent-owned Adelita project, for a term running from Sept. 29, 2026, to Sept. 28, 2031.

The agreement was approved by the ejido's general assembly on Sept. 22, 2026, convened in accordance with the procedures established under Mexico's Agrarian Law, and was executed the same day. The agreement was ratified before a notary public on Sept. 30, 2026, and will be submitted for registration with Mexico's National Agrarian Registry.

Enrico Gay, chief executive officer of Algo Grande, commented: "Five years of secured access, approved by the ejido's assembly, gives us the certainty to plan Adelita's exploration with discipline and a long-term view. It also carries a responsibility we take seriously: to work transparently, to respect the land and the people who hold land rights, and to build a relationship that creates lasting value for the ejido as the project advances. We thank the ejido's authorities and members for their confidence."

Relationship with the ejido

The ejido is a host community of the Adelita project, and the new agreement continues a working relationship established under the company's previous agreement. The terms were negotiated directly with the ejido's elected representatives, building on the continuing dialogue the company maintains with the ejido's authorities. The agreement provides a clear, long-term framework for the company's activities on ejido lands, including its commitment to carry out all work in accordance with Mexican environmental regulations. The company is committed to respecting the rights of the ejido and its members, and conducts its activities in accordance with its code of conduct, which includes a commitment to respect internationally recognized human rights and sets out the company's standards for land access and engagement with ejidos.

Beyond the agreement, Algo Grande will continue to work with the ejido through its community engagement program, within the framework of the company's code of conduct and guided by its 2026-2027 environmental, social and governance road map.

About Algo Grande Copper Corp.

Algo Grande is a mineral exploration company advancing the Adelita project, a district-scale, multisystem copper-silver-gold opportunity positioned in the prolific Arizona-Sonora copper belt. The 5,895-hectare Adelita project is anchored by the high-grade Cerro Grande copper-gold-silver skarn discovery, which exhibits strong geophysical continuity along a defined corridor extending over six kilometres. Reprocessing of legacy geophysical data and field mapping indicate that a potential porphyry system may occur at depth, suggesting a classic skarn-porphyry mineralization model similar to major deposits found throughout northwestern Mexico.