Mr. Simon Clarke reports

AMERICAN CRITICAL MINERALS FILES TECHNICAL REPORT FOR GREEN RIVER POTASH AND LITHIUM PROJECT

American Critical Minerals Corp. has filed a National Instrument 43-101, Standards of Disclosure for Mineral Projects, technical report supporting the exploration targets for potash, lithium and bromine for its Green River potash and lithium project, reported in the company's news release dated Oct. 6, 2025. The NI 43-101 report was prepared by Biao Qiu, PhD, PE, PEng, and Deliang Han, PhD, PGeo, of Agapito Associates LLC, dated Oct. 27, 2025. The exploration targets have an effective date of Sept. 30, 2025. The filing is voluntary and is not required under NI 43-101 (see Part 4.2(12) of Companion Policy 43-101CP).

The NI 43-101 report recommends a phased exploration and development program, to build on and confirm historic oil and gas drill data and seismic work, including, but not limited to: phase 1: drilling to test cycle 5 potash horizons and test the clastic zones for both lithium and bromine within the Paradox and Leadville formations; complete maiden mineral resource estimates for potash, lithium and bromine; and complete initial prefeasibility studies thereon; and phase 2: additional stepout drilling; run a vertical seismic profile (VSP) in at least one well for the purpose of generating a synthetic seismogram to improve the analysis of existing two-dimensional (2-D) seismic interpretation; conduct a 3-D seismic survey; complete lidar (light detection and ranging) surface mapping; conduct a deep disposal well study; conduct detailed engineering and design; conduct baseline environmental studies, all culminating in a feasibility study and the commencement of permitting. Based on the recommendations, the Company is currently working to develop the phase 1 program of drilling and sampling for the upcoming season.

Simon Clarke, president and chief executive officer, stated: "We updated the existing technical report to include the recently announced lithium and bromine exploration targets. This also provided an opportunity to include an up-to-date analysis on historic seismic data, and to update the prior report for the recent approval of our plan of operations, federal potash prospecting licences and drill authorizations, and to update recommendations based on latest developments in the area and exploration in general.

"We believe we now have a very detailed and up-to-date analysis of our project and its broader potential. 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."

About American Critical Minerals Corp.

The Green River potash and lithium project is situated within Utah's highly productive Paradox basin, located 20 miles northwest of Moab, Utah, and has significant logistical advantages including close proximity to major rail hubs, airport, roads, water, towns and labour markets. It also benefits from close proximity to the agricultural and industrial heartland of America, and numerous potential end-users for its products.

The history of oil and gas production across the Paradox basin provides geologic data from historical wells across the project and the wider basin, validating and derisking the potential for high-grade potash and large amounts of contained lithium. Wells in and around the project reported lithium up to 500 parts per million (ppm), bromine up to 6,100 ppm and boron up to 1,260 ppm (Gilbride & Santos, 2012). These data are reinforced by nearby potash production and the advanced stage of neighbouring lithium projects. The Paradox basin is believed to contain up to 56 billion tonnes of lithium brines, potentially the largest such resource in the United States.

The company's 43-101 potash exploration target consists of 500 million to 950 million tonnes of sylvinite (the most important source for the production of potash in North America) grading from 12 per cent to 18 per cent potassium oxide based on elog (eK2O equal to 19 per cent to 29 per cent potassium chloride based on elog (eKCl)). Its exploration targets for lithium and bromine are 2.1 billion cubic meters (brine volume) grading from 71.6 to 216.3 parts per million lithium, and 2.1 billion cubic meters (brine volume) grading from 3,656 to 4,741 parts per million bromine.

The company holds a 100-per-cent interest in 11 State of Utah (SITLA) mineral and minerals salt leases covering approximately 7,050 acres, 1,094 federal lithium brine claims (BLM (Bureau of Land Management) placer claims) covering 21,150 acres and 11 federal (BLM) potash prospecting permits covering approximately 25,480 acres. Through these leases, permits and claims, the company has the ability to explore for potash, lithium and potential byproducts across the entire Green River project (approximately 32,530 acres). The company is authorized to drill a total of seven drill holes across the project (pending bonding the recently approved four drill holes).

Intrepid Potash Inc. is America's largest potash company and only U.S. domestic potash producer and currently produces potash from its nearby Moab Solution mine, which the company believes provides strong evidence of stratigraphic continuity within this part of the Paradox basin. Anson Resources Ltd. has advanced lithium development projects contiguous to the northern boundary of the Green River project and neighbouring to the south. Anson has a large initial resource, robust definitive feasibility study and has recently completed successful piloting operations through its partnership with Koch Technology Solutions, as well as an offtake agreement with LG Energy Solution. The Anson exploration targets encompass the combined Mississippian Leadville formation and the Pennsylvanian Paradox formation brine-bearing clastic layers, which also underlie American Critical Minerals' entire project area.

In 2022, the U.S. imported approximately 96.5 per cent of its annual potash requirements with domestic producers receiving a higher sales price due to proximity to market. In March, 2024, the U.S. Senate introduced a bill to include key fertilizers and potash on the U.S. Department of Interior list of critical minerals, which already includes lithium, and this process is well advanced with potash being added to the USGS draft critical minerals list. In August, 2025. Recent market estimates suggest that the global potash market is over $50-billion (U.S.) annually and growing at a compound annual growth rate (CAGR) of close to 5 per cent. Annual lithium demand is now estimated to be over one million tonnes globally and continuing to grow rapidly.

Qualified person

The technical content of this news release has been reviewed and approved by Dean Besserer, PGeo, the chief operations officer of the company and a qualified person for the purposes of National Instrument 43-101.

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