Ms. Bonn Smith reports

ATLANTICO APPOINTS ANDREW LEE SMITH TO ADVISORY BOARD AND EXPANDS GLOBAL ACCESS THROUGH FRANKFURT LISTING AND 16-LANGUAGE WEBSITE

Atlantico Energy Metals Corp. has appointed Andrew Lee Smith to the company's advisory board, has commenced trading on the Frankfurt Stock Exchange under the symbol 1CJ1 and WKN A42CRT and has expanded launch of the company's 16-language website.

Together, these initiatives are intended to strengthen Atlantico's technical foundation, broaden investor access and support the company's mission of responsibly advancing critical minerals opportunities in Brazil as it builds toward the next phase of work at Atlantico's flagship Novo Cruzeiro lithium and rare-earth elements project in the Aracuai-Itinga pegmatite district of Minas Gerais, a region commonly referred to as Brazil's Lithium Valley.

"Atlantico was built on the belief that responsible mineral exploration is not opposed to a cleaner future; it is essential to achieving one. The world cannot meaningfully reduce its dependence on fossil fuels without new sources of the critical minerals required for electrification, renewable energy, batteries and advanced energy infrastructure," said Bonn Smith, president and chief executive officer of Atlantico.

"Andrew brings the technical, geological and public company experience we want around the table as we build Atlantico with discipline, transparency and clear intention. Together, our Frankfurt listing and expanded 16-language website reflect the same objective: making Atlantico more accessible to investors and stakeholders around the globe as we advance our flagship Novo Cruzeiro lithium and rare-earth elements project in Brazil's Lithium Valley."

Atlantico's advisory board welcomes Andrew Lee Smith

Mr. Smith is a Canadian geologist and mining executive with more than 30 years of experience in mineral exploration, project development and public company leadership. His career includes executive, director and advisory roles with multiple public mining companies, including East Africa Metals, Canary Gold, Spark Energy Minerals, Canaco Resources and True North Gems.

Mr. Smith brings technical, governance and capital-markets experience to Atlantico as the company advances its critical minerals strategy in Brazil, anchored by Atlantico's flagship Novo Cruzeiro lithium and rare-earth elements project.

As part of his advisory role, Mr. Smith is expected to support the company's geological and technical review process and, where applicable, review and approve scientific and technical disclosure as a qualified person under National Instrument 43-101 -- Standards of Disclosure for Mineral Projects.

Building a more accessible global presence

Atlantico has launched an updated corporate website designed to make the company easier to access across markets, languages and time zones. The website is now available in 16 languages, allowing a broader global audience to review Atlantico's corporate profile, project information, investor materials and critical minerals education content.

The multilingual website supports Atlantico's goal of building a more transparent, accessible and globally relevant public company platform as it advances its critical minerals strategy in Brazil. Atlantico's global access strategy reflects a simple idea: investors and stakeholders should be able to understand the company's story in the language and market context most familiar to them.

Atlantico commences trading on the Frankfurt Stock Exchange

The company's common shares have commenced trading on the Frankfurt Stock Exchange (FSE) under the symbol 1CJ1 and WKN A42CRT. The Frankfurt listing is intended to improve access for European investors and broaden Atlantico's visibility beyond the Canadian market, complementing the company's Canadian Securities Exchange (CSE) listing under the symbol ATLA.

President and CEO attended Brazil Lithium & Critical Minerals Summit in Minas Gerais

Atlantico president and chief executive officer Bonn Smith attended the Brazil Lithium & Critical Minerals Summit 2026 in Belo Horizonte, Minas Gerais, Brazil, held June 17 to June 18, 2026, at the Ouro Minas Hotel. The company's participation reflects Atlantico's continued focus on Brazil and its continuing engagement with the country's lithium and critical minerals ecosystem.

About Atlantico Energy Metals Corp.

Atlantico Energy Metals is a Canadian mineral exploration company built around a simple belief: a cleaner energy future needs critical minerals. The company's flagship project is the Novo Cruzeiro lithium and rare-earth elements project, located in northeastern Minas Gerais, Brazil, within the region commonly known as Brazil's Lithium Valley. Atlantico is advancing Novo Cruzeiro with a focus on disciplined technical work, transparent disclosure, responsible practices, and long-term value creation for shareholders and the regions where the company operates.

Qualified person statement

Andrew Lee Smith, PGeo, a qualified person as defined by National Instrument 43-101 -- Standards of Disclosure for Mineral Projects, has reviewed and approved the scientific and technical information contained in this news release relating to the company's Novo Cruzeiro lithium and rare-earth elements project. Mr. Smith is not independent of the company as a result of his role as a member of the company's advisory board.

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