Mr. Dean Pekeski reports

AMERICAN CRITICAL MINERALS ANNOUNCES PRIVATE PLACEMENT IN ADVANCE OF ITS GREEN RIVER PROJECT WELL

American Critical Minerals Corp. has arranged a non-brokered private placement of up to eight million units at a price of 25 cents per unit to raise gross proceeds of up to $2-million. Each unit will consist of one common share of the company and one common share purchase warrant exercisable at a price of 35 cents for a period of three years.

The net proceeds from the offering will strengthen the company's treasury and will be used to support drilling operations at the company's Green River project and working capital purposes.

The company may pay finders' fees to eligible parties who have assisted in introducing subscribers to the offering. Closing of the offering remains subject to certain conditions including, but not limited to, the receipt of all necessary regulatory approvals. All securities issued in connection with the offering will be subject to restrictions on resale for a period of four months and one day in accordance with applicable securities laws.

Dean Pekeski, chief executive officer and president of the company, stated: "Preparation and planning for our first well on the Green River project has progressed very well. Harrison Field Services Inc. has advanced drill pad construction activities significantly and we anticipate that the drill pad will be ready for drilling in August. We have substantially completed all planning and procurement activities. A drill contractor who is working elsewhere in the Paradox Basin has been identified. Casing and tubular products have been ordered. This offering will boost the company's balance sheet, provide additional working capital and provide contingency funds during drilling."

The initial drill location at the Green River project will be at the Duma Point AP-S-02 well which is within Utah State issued Permit 51690 (School and Institutional Trust Lands Administration, known as SITLA or Trust Lands Administration). This drill hole is a high-priority target selected adjacent to historic oil and gas well Quintana Fed 1-1, which is:

• The location of the highest historical grades within the Green River project where logs measured eK2O equals 24.3 per cent potassium chloride based on elog (eKCl)) over 5.9 metres;
• Within a flat-lying portion of the regional anti-form (see news release dated Oct. 15, 2025);
• Selected as a high-priority drill target as part of the company's National Instrument 43-101 technical report (see news release dated Feb. 5, 2026).

The company has engaged Respec Company LLC to execute the 2026 drill program (see news release dated April 23, 2026). American Critical Minerals has in place all the necessary regulatory requirements including the notice of intent (NOI), storm water pollution prevention plan (SWPPP) and bonding approval (see news release dated May 26, 2026).

About American Critical Minerals' Green River potash and lithium project

The Green River project is situated within Utah's highly productive Paradox basin, located 20 miles northwest of Moab, Utah. It 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 historic 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 ppm (parts per million), bromine up to 6,100 ppm and boron up to 1,260 ppm. These data are reinforced by nearby potash production and the advanced stage of neighbouring lithium projects. The Paradox basin is believed to be one of the biggest sources of lithium brines in the United States.

The company has disclosed targets for further exploration at the Green River project consisting 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 equals 19 per cent to 29 per cent potassium chloride based on elog (eKCl)). Its target for further exploration for lithium and bromine is 600,000 to 1.7 million tonnes lithium carbonate equivalent grading from 91 to 152 ppm; and 3.3 to 9.1 Mt bromine grading from 2,647 to 4,412 ppm.

The company holds a 100-per-cent interest in 11 SITLA mineral and minerals salt leases covering approximately 7,050 acres, 1,094 federal lithium brine claims (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 Green River project.

America's largest potash company and only U.S. domestic potash producer 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 company's 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.

The United States imports more than 90 per cent of its potash demand (U.S. Geological Survey, Mineral Commodity Summaries, January, 2025). In November, 2025, the Department of Interior added potash to its list of critical minerals which already includes lithium. 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 scientific and 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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