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. During 2023 and 2024, Emmerson's key priority has remained securing the approval of the Environmental and Social Impact Assessment (“ESIA”) for Khemisset Project. In October 2024, Emmerson announced that the Unified Regional Investment Commission (CRUI) rejected its ESIA. This rejection followed a denial in 2023, citing concerns about high water consumption during a prolonged drought in Morocco. Despite Emmerson's efforts to reduce water consumption by 50% in its revised ESIA, authorities were not convinced. The company announced on December 6, 2024, its intention to file a case with the International Centre for Settlement of Investment Disputes (ICSID) following a setback related to the environmental assessment.

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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Commodity Production

Operational metrics

Metrics
Annual ore mining rate	....

Personnel

Job Title	Name	Profile	Ref. Date
.......................	.......................		Jan 27, 2025
.......................	.......................		Jan 21, 2025
.......................	.......................		Jan 21, 2025
.......................	.......................		Jan 21, 2025

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