Atlantico Highlights First-Pass Rare Earth Enrichment and Lithium Pathfinders from NI 43-101 Results at Flagship Novo Cruzeiro Project

Executive Summary

• Atlantico Energy Metals highlights first-pass exploration results from its NI 43-101 Technical Report for the Novo Cruzeiro project in Brazil, demonstrating rare earth oxide enrichment and lithium pathfinder indicators across a large, underexplored land package.
• The program collected 170 stream sediment and 61 rock samples, revealing TREO values up to ~1,422 ppm and MREO values up to 328.49 ppm, alongside Li/Cs/Rb anomalies pointing to potential LCT pegmatite targets beneath weathered cover.
• The Company also announced a $100,000 marketing services agreement with Machai Capital Inc. for a one-month period, subject to CSE approval.

Key Details

• Exploration program collected 170 stream sediment samples (~1 per 1.45 sq km) and 61 rock samples across the Novo Cruzeiro property.
• TREO (Total Rare Earth Oxides) mean value ~421 ppm; maximum value ~1,422 ppm, dominated by cerium, lanthanum, and neodymium.
• MREO (Magnetic Rare Earth Oxides) maximum value 328.49 ppm; upper 95th percentile 259.83 ppm, including neodymium, praseodymium, dysprosium, and terbium.
• Lithium pathfinder anomalies (Li, Cs, Rb) identified in at least four stream catchments, supporting LCT pegmatite systems; rock samples returned no anomalous lithium values, likely due to >10m deep saprolite cover.
• Lithium follow-up roadmap includes upstream tracing, prospecting, soil sampling, ground-penetrating radar, trenching, and channel sampling to look through weathered cover.
• Rare earth follow-up roadmap includes channel sampling of exposed saprolite, soil/mobile-element geochemistry, mechanical auger testing through saprolite, with potential future drilling and expanded geophysics.
• Project covers 15 contiguous exploration permits totaling 24,387.28 hectares across Itaipé, Ladainha, and Novo Cruzeiro in Minas Gerais, Brazil, situated in the Eastern Brazilian Pegmatite Province.
• Marketing agreement with Machai Capital Inc. dated June 19, 2026, for digital marketing services (SEO, SEM, lead generation, social media, etc.) over a one-month term.
• Marketing consideration is $100,000 plus GST, payable from general working capital; Machai is arm's length with no security ownership and engagement is subject to CSE approval.
• Technical basis is the NI 43-101 Technical Report dated February 9, 2026; no known mineralization, historic drilling, mineral resources, or reserves exist; high exploration risk remains.
• Qualified Person: Andrew Lee Smith, P.Geo. (Advisory Board member, not independent).

Notable Quotes

• "These first-pass assay results from our NI 43-101 Technical Report provide exactly the kind of technical foundation we want at this stage of exploration." – Bonn Smith, President and CEO
• "Critical minerals are not abstract. They are physical minerals that make electrification, renewable energy, batteries and advanced technologies possible." – Bonn Smith, President and CEO
• "These early fieldwork results point to a broader and more compelling critical-minerals opportunity than a single isolated anomaly. Novo Cruzeiro is not presenting as a one-mineral story..." – Bonn Smith, President and CEO