American Critical Minerals Files Technical Report for Green River Potash and Lithium Project

Executive Summary

• American Critical Minerals voluntarily filed an NI 43‑101 technical report detailing exploration targets for potash, lithium and bromine at its Green River Project.
• The report quantifies a lithium brine target of 2.1 billion m³ (71.6–216.3 ppm Li) and a bromine brine target of 2.1 billion m³ (3,656–4,741 ppm Br), plus a potash target of 0.5‑1.0 Bt sylvinite (12‑18% K₂O).
• The filing supports the company’s phased Phase 1/Phase 2 exploration program and underpins upcoming drilling to test Tier 1 targets and move toward maiden mineral resource estimates.

Key Details

• Technical Report: NI 43‑101 Technical Report prepared by Biao Qiu, Ph.D., P.E., P.Eng. and Deliang Han, Ph.D., P.Geo. of Agapito Associates, LLC; dated 27 Oct 2025; effective target date 30 Sep 2025.
• Lithium Exploration Target: 2.1 billion m³ brine volume grading 71.6–216.3 ppm Li.
• Bromine Exploration Target: 2.1 billion m³ brine volume grading 3,656–4,741 ppm Br.
• Potash Exploration Target: 0.5‑1.0 Bt sylvinite (12‑18% K₂O; eK₂O = 19‑29% KCl).
• Phase 1 Program: Drill to test Cycle 5 potash horizons and clastic zones for lithium & bromine; complete maiden resource estimates; initiate pre‑feasibility studies.
• Phase 2 Program: Additional step‑out drilling, vertical seismic profile (VSP), 3D seismic survey, LiDAR mapping, deep disposal well study, detailed engineering/design, baseline environmental work, culminating in a feasibility study and permitting.
• Current Status: Company developing Phase 1 drilling and sampling program for the upcoming season; authorized to drill up to 7 holes (pending bonding of 4 newly approved holes).
• Land Position: 100% interest in 11 Utah state mineral/salt leases (~7,050 ac), 1,094 federal lithium brine claims (~21,150 ac), and 11 federal potash prospecting permits (~25,480 ac) covering ~32,530 ac total.
• Qualified Person: Dean Besserer, P.Geo., COO, reviewed and approved technical content per NI 43‑101.
• Forward‑Looking Statements: Includes expectations on exploration targets, program timelines, and market outlook for potash and lithium; subject to risks disclosed in the latest MD&A.

Notable Quotes

“We updated the existing technical report to include the recently announced lithium and bromine exploration targets… The recommendations from the Report will help form the basis of our upcoming drilling and sampling program where we will drill test the Tier 1 Targets and move towards maiden mineral resources for Potash, Lithium and Bromine.” – Simon Clarke, President & CEO