Esterhazy K1 and K2 Expansion Project

Mosaic Potash | Canada | 2008–2018

2.5 Mtpa to 2.7 Mtpa

increase capacity, K1 2012

2.6 Mtpa to 3.3 Mtpa

increase capacity, K2 2013


all important metrics


  • Esterhazy, the world’s largest potash mine, wanted to increase capacity to 7.0 Mtpa by 2018.
  • K1: increase production capability from 2.5 Mtpa to 2.7 Mtpa in 2012; K2: from 2.6 Mtpa to 3.3 Mtpa in 2013. Expand to 4.4 Mtpa by 2018.
  • Expansion projects must be fully integrated without impact to existing operations. Careful design, planning, and experience of our team were critical for successful execution.


  • Esterhazy K1 expansion project increased the crushing and screening area of the plant. We provided full EPCM and commissioning following both conceptual and prefeasibility studies.
  • Esterhazy K2 expansion project added a third, independent circuit to the mill wet side; additions and upgrades to the mill dry-side equipment; and a fourth compaction circuit.
  • We provided successful prefeasibility and feasibility studies, and full engineering, procurement, construction management, and commissioning services to complete this expansion.


  • Brownfield work was completed with minimal impact on operations and an excellent safety record.
  • Projects ramped up quickly and exceeded design capacities during proving runs.
  • Advancements were made in process automation/control for new production.

"In total, our proving runs for Esterhazy and Colonsay added 1.7 million tonnes compared to the expected increase of 1.3 million tonnes—almost 30% higher. These exceptional results were delivered on budget and on time."

James T. Prokopanko | President and CEO, The Mosaic Company

Project numbers

C$500 million
2.6 Mtpa to 3.3 Mtpa increase capacity, K2 2013

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