Summary

Mine Type	In-Situ
Study Completed	Preliminary Economic Assessment
Stage	Permitting
Commodities	Potash
Mining Method	Solution mining
Project Timeline	...
Mine Life	...
Snapshot	The Sage Plain potash project area consists of two principal zones: the Cycle 18 Upper Potash Bed and the Cycle 18 Lower Potash Bed. Combined mechanical evaporation and solution mining techniques offer minimal environmental impact, lower capital costs, faster production timelines, year-round operation. The use of brackish water for cavern development limits the demand for fresh water. Sage Potash has made a business decision to derisk the project with an initial pilot production plant under its currently Large Mine Operation production permit application. Sage Potash has secured governmental approvals for two Class V exploration wells. Sage Potash purchased an existing but a never been used European processing plant at a significantly lower cost, drastically cutting capital expenditure, expediting time to production. The modular plant design allows for incremental expansion with speed and efficiency. Permitting is ongoing and not considered a project risk.

Deposit type

• Evaporite
• Sedimentary

Summary:

The Paradox Formation hosts Sage Potash’s mineral deposit.

The Paradox Basin is situated largely within southeastern Utah, extending into southwestern Colorado. The Paradox Basin is characterized by thick, cyclical successions of interbedded evaporite and clastic sediments deposited within a northwest to southeast trending, elongated basin.

Potash mineralization showing economic potential was encountered in the Johnson 1 exploration well. The economic zones of interest within the Project Area are the Cycle 18 Upper and Lower Potash Beds. The Cycle 18 Upper and Lower Potash Beds occur as discrete, stratiform evaporite seams mid-way through the Paradox Formation at approximately 2,100 m depth. The Cycle 18 potash horizon predominantly comprises sylvite and halite with minor amounts of carnallite and insolubles and is overlain and underlain by barren salt interbeds. The Cycle 18 Upper and Lower Potash Beds were identified from geochemical assays, core descriptions, and wireline log interpretation.

Dip And Structure
Historical drillhole data and 2D seismic lines indicate the depth to the top of the Paradox Formation in the Project Area averages 365 m (1,198 ft) above sea level and the base averages 300 m (984 ft) above sea level. The Paradox Formation structural dip angle is regionally interpreted at less than 5 degrees toward the south. The dip shown on the maps appears to be consistent with the expected regional trends of the area.

Potash mineralization encountered from drillhole data consists of Cycle 18 potash. Potash mineralization in Cycle 18 generally occurs in one main horizon; however, potash can also occur as two discrete zones, termed the Cycle 18 Upper and Lower Potash Beds. These horizons are separated by as much as 10 m (33 ft) of barren halite. The uppermost deposit generally contains the greatest concentration of potash [Hite, 1978a].

The Cycle 18 Upper Potash Bed has north to northeastward thickening from less than 4 m near the (seismically interpreted) highly faulted area to approximately 7.3 m (24 ft) at the Johnson 1 exploration well. The depth to the top of Cycle 18 economic potash horizons averages 2,113 m (6,932 ft). The upper and lower potash horizons are both vertically adjacent to zones primarily comprising barren halite and insoluble sediments.

Johnson 1 Well is characterized by the following:
Cycle 18 Upper Potash Bed:
• The weighted average grade is 26.96 percent K2O over 7.26 m (23.8 ft).
• Sylvite occurs as white to gray/colorless cloudy crystals that are very fine to fine crystalline to locally very coarse crystalline in texture. The average crystal size is 2 to 15 millimeters (mm) (0.08 to 0.59 in) in diameter.
• Halite occurs as gray to white/colorless, very fine to fine crystalline with local coarse crystalline texture. The average crystal size is 2 to 35 mm (0.08 to 1.4 in) in diameter.
• Very low carnallite (0.01 percent magnesium oxide) and insoluble content (0.56 percent) exists.
• Thin, dark horizontal banding of similar mineralogy to adjacent cycles exists, as identified by XRD.

Cycle 18 Lower Potash Bed:
• The estimated average grade is 22.60 percent K2O over 5.48 m (18.0 ft).
• Very low carnallite and insoluble content exists compared with the Upper Potash Horizon in geophysical well logs.
• Between the Cycle 18 Upper and Lower Potash Beds, the interbed salt is 12.5 m (41 ft).

The Paradox Basin Cycle 18 potash horizons are at a favorable depth for solution mining. A bottom-hole temperature of 68°C (154°F) was recorded at a depth of 2,169 m in the Johnson 1 Well. These parameters, as well as the generally flat-lying nature of the deposit, further contribute to the potential economic viability of solution mining.

Mining Methods

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Comminution

Crushers and Mills

Processing

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Water usage

Commodity Production

Operational metrics

Metrics
Annual production capacity	....
Ore tonnes mined, LOM	....

Personnel

Job Title	Name	Profile	Ref. Date
.......................	.......................		Sep 8, 2025
.......................	.......................		Sep 8, 2025
.......................	.......................		Sep 8, 2025
.......................	.......................		Dec 22, 2025
.......................	.......................		Dec 22, 2025

Employees	Year
......	2025