Summary

Mine Type	Underground
Study Completed	Preliminary Economic Assessment
Stage	Permitting
Commodities	Potash
Mining Method	Room-and-pillar Continuous
Mine Life	...
Snapshot	Khemisset project incorporates an innovative, patent-pending processing method - Khemisset Multimineral Process ("KMP"), which allows mixed potash ore types to be processed in a highly efficient manner, creating multi-nutrient fertilisers as by-products. At the start of 2024, the Khemisset Multi-mineral Process (KMP) was announced and progress made on environmental approval, referred back to the CRI after an appeal. However, in October 2024 a second refusal was received, and in November the Company notified the Moroccan government of an investment dispute. ICSID has constituted the arbitral tribunal for the dispute between Khemisset UK Ltd./Potasse de Khemisset S.A. and Morocco over the Khemisset potash project. Filed May 23, 2025, Emmerson claims Morocco’s 2024 environmental rejection unjustly expropriated its $2.2 billion investment. The tribunal is now pending procedural scheduling and initial submissions.

Deposit type

• Sandstone hosted
• Sedimentary

Summary:

The Khemisset Basin is a sedimentary basin of Triassic age, initiated by the opening of the mid-Atlantic ridge. The sedimentary sequence of the basin is characterised by early continental red bed deposits including iron-rich sandstones. Continued subsidence and extensional faulting in the late Triassic and early Jurassic resulted in the deposition of clay and extensive evaporite sequences, characteristic of a closed marine basin and thought to exceed 1,000m in thickness in some areas. The evaporitic sequence is primarily comprised of halite, gypsum and locally, sylvite and carnallite.

The Khemisset basin was characterised by a continental slope leading into a shallow marine environment with the deposition of carbonate banks and the formation of a carbonate platform with associated dolostone and dolomitic limestone deposits. Around this time Western Morocco also experienced the deposition of extrusive basalts. Subsidence in the Moroccan continental margin continued into the Middle Cretaceous, until a period of uplift in the Late Cretaceous leading to salt diapirism; the intrusion of salt into surrounding host rock to form domes. As the rate of subsidence slowed, the basin became erosive leading to the deposition of a thick Tertiary sedimentary sequence of marls and conglomerates.

The evaporite sequence is equivalent to the Lower Salt Formation observed within the Khemisset basin and represents a regional target for potash exploration.

Mining Methods

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Comminution

Crushers and Mills

Processing

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Water usage

Commodity Production

Operational metrics

Metrics
Annual ore mining rate	....

Personnel

Job Title	Name	Profile	Ref. Date
.......................	.......................		Nov 28, 2025
.......................	.......................		Nov 28, 2025

Employees	Total Workforce	Year
......	......	2020