Mining Intelligence and News

Achmmach Project

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Mine TypeUnderground
  • Tin
Mining Method
  • Longhole stoping
  • Open stoping
  • Underhand stoping
Backfill type ... Lock
Mine Life... Lock
SnapshotThe 2024 Scoping Study incorporates the benefits of combining Achmmach with the nearby El Hammam processing facility owned by SAMINE, which is to be acquired by Atlantic Tin as announced on 30th May 2024. The Scoping Study demonstrates the integrated project to be a low-cost, long-life producer of clean and high-grade tin concentrate.


Nittetsu Mining Co., Ltd. 5 % Indirect
Toyota Tsusho Corp. 20 % Indirect
Atlantic Tin Ltd. (operator) 75 % Indirect
The project is owned by Atlas Tin SAS, a joint venture company comprising Kasbah Resources Ltd (75%), Toyota Tsusho Corporation (20%) and Nittetsu Mining Co Limited (5%).

Deposit type

  • Vein / narrow vein
  • Metamorphic


The Achmmach tin deposit is hosted within the turbiditic sediments of the Namurian aged Fourhal Formation. The Fourhal Formation consists of deformed, interbedded pelites and psammites of lower carboniferous age. These meta sandstones and shales comprise a tightly-folded sequence of turbidite beds, overprinted by tourmaline alteration within sheared regions and intruded by magmatic sills.

Mineralisation is localised in two subparallel ENE striking lodes named the Meknès and Sidi Addi Trends, separated by a distance of approximately 500 m. The largest part of the resource comprises the Meknès Trend. The mineralisation to be mined within the Sidi Addi Trend is referred to as the Western Zone. It is developed within the tourmaline-silica altered metasediments. Tin mineralisation occurs primarily as cassiterite with minor stannite.

The Achmmach tin deposit is hosted within a sedimentary sequence of turbidite beds that vary from thin-bedded to graded-bedded cyclic. Tourmaline-silica breccias were formed during subsequent deformation, and following this a number of pulses of mineralisation occurred, with the tin mineralisation preferentially (but not always) precipitating in the pre-existing tourmaline silica breccias. The tin occurs as disseminated cassiterite (SnO2) associated with sulphide and/or quartz veins.

Overall tin mineralisation at Achmmach extends 1.6km in strike length, is 300m wide and extends from the surface to 600m below the surface. The high-grade parts of the Meknes and Fez zones, which are of the most interest, are 400m in strike length, 200m wide and located from 150m below surface to 400m below surface.



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Crushers and Mills


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CommodityProductUnitsAvg. AnnualLOM
Tin Metal in ore t 57,645
Tin Metal in concentrate t 4,500

Operational metrics

Annual ore mining rate 750 kt *
Annual processing capacity 750 kt *
Ore tonnes mined, LOM 7,013 kt *
* According to 2018 study.

Production Costs

All-in sustaining costs (AISC) Tin USD 11,435 / t *  
C1 cash costs Tin USD 9,176 / t *  
C2 total cash costs Tin USD 12,991 / t *  
C3 fully allocated costs Tin USD 13,695 / t *  
Assumed price Tin USD 21,000 / t *  
* According to 2018 study / presentation.

Project Costs

MetricsUnitsLOM Total
Sustaining CapEx $M USD  ......  Subscribe
Closure costs $M USD  ......  Subscribe
Total CapEx $M USD  ......  Subscribe
UG OpEx $M USD  ......  Subscribe
Processing OpEx $M USD 109.8
G&A costs $M USD 36.7
Royalty payments $M USD  ......  Subscribe
Gross revenue (LOM) $M USD  ......  Subscribe
EBITDA (LOM) $M USD  ......  Subscribe
Net Operating Income (LOM) $M USD  ......  Subscribe
After-tax Cash Flow (LOM) $M USD  ......  Subscribe
After-tax NPV @ 8% $M USD  ......  Subscribe
After-tax IRR, %  ......  Subscribe
After-tax payback period, years  ......  Subscribe

Heavy Mobile Equipment

Fleet data has not been reported.


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