Operational performance improvement in potash mining

In today’s mining industry, operational excellence is a critical success factor. Volatile markets, capital-intensive assets, strict safety requirements, and increasing pressure to maximize production place significant demands on mining organizations. To remain competitive, mine and mill operators must deliver projects faster, operate assets more reliably, and continuously improve productivity, without compromising safety or quality.

This case study presents the operational excellence journey of a potash mine and mill owner that partnered with the Kaizen Institute to address these challenges. Through the structured application of Lean and Kaizen principles across projects, operations, maintenance, and support functions, the organization achieved measurable improvements in project delivery, production performance, workplace efficiency, and financial results.

A critical player in potash mining

The company is a potash mine and mill owner operating in the mining and processing of potassium-rich salts, primarily used in agricultural fertilizers. Potash is most commonly produced as potassium chloride (KCl), also known as muriate of potash (MOP), and is frequently reported in terms of potassium oxide (K2O) equivalence to ensure consistency across deposits.

Approximately 95% of global potash production is used in fertilizer to support plant growth, increase crop yields, enhance disease resistance, and improve water retention. Smaller quantities are used in detergents, ceramics, pharmaceuticals, water conditioning systems, and alternatives to de-icing salts. Potassium is an essential nutrient for plants, animals, and humans, with no viable substitute.

Operating in a capital-intensive and safety-critical environment, the client faced increasing pressure to improve operational performance, project delivery, and asset utilization while maintaining strict quality and safety standards.

Understanding operational challenges

Across multiple sites and functions, the organization faced recurring challenges that limited performance and value creation, such as:

• Major capital and operational projects that were consistently delivered over budget and behind schedule.
• Operations teams were overstretched and unable to support high-urgency improvement initiatives.
• Production losses were driven by equipment downtime, commissioning issues, and poor coordination between teams.
• Workplace organization, inventory management, and maintenance processes lacked standardization, leading to inefficiencies and safety risks.
• Limited real-time visibility of production performance led to delayed decision-making and corrective actions.

To address these challenges, the Kaizen Institute was engaged across several strategic and operational initiatives.

Transforming mining operations through structured improvement

To address its operational and strategic challenges, the client partnered with the Kaizen Institute in a structured improvement journey spanning six targeted projects. Rather than isolated interventions, each project was designed as part of a coherent approach that applied Lean and Kaizen principles to address critical constraints, stabilize operations, and achieve sustainable performance improvements.

Project 1: Lean Project Management: Mine mill debottlenecking

The client needed to execute a critical debottlenecking project within a 3.5-month timeframe, starting from an initial scope “wish list” while design, fabrication, and construction progressed in parallel.

The root causes identified included a history of poor project performance and limited availability of operations personnel for urgent initiatives.

The path to performance transformation

To ensure disciplined execution and accelerate delivery under a compressed timeline, a structured project management approach was implemented, including:

• Enforcing the use of standard project management tools.
• Fostering professionalism, mutual respect, and engaging communication across all stakeholders to build a highly effective team capable of breaking down barriers quickly.
• Conducting face-to-face alignment meetings and implementing commitment-based planning with all parties.

Delivering results that matter

• Project completed 4 days ahead of schedule.
• Delivery 20% under budget, generating $6 million in savings.
• 100% compliance with quality requirements.

These results demonstrate that disciplined project execution, combined with strong cross-team alignment, can deliver predictable, high-quality outcomes in complex mining environments.

Project 2: Reduction of mining face downtime

The client sought to reduce downtime at the mining face while improving safety and efficiency.

Because crews frequently used inappropriate tools, safety risks and equipment damage increased.

Structured improvement approach

To reduce downtime at the mining face and improve safety and efficiency, a structured improvement approach was applied, focusing on workplace organization, availability of tools, and standardization of work practices:

• Application of 5S, Kanban, TPM, and other Kaizen methodologies.
• Create fit-for-purpose skids by defining the requirements and designing them to fit the requirements.
• Definition of required supplies at the mining face.
• Implement a replenishment process using a Mizusumashi.
• Standardization of document methods across similar work areas.

Results that redefined performance

The implementation of these improvements delivered measurable reductions in downtime and generated tangible operational and financial benefits:

• Belt extension time reduced by 25% (from 8 to 6 hours).
• Savings of $30,000 per extension.

These results indicate that increasing tool availability and standardization at the mining face can significantly reduce downtime and improve safety.

Project 3: Underground warehouse revitalization

The underground warehouse suffered from poor inventory accuracy, missing parts, duplicate orders, and frequent equipment downtime. This issue was causing inefficiency in the workplace and directly impacting equipment downtime.

The root causes were traced to ineffective warehouse management practices. Parts were stored without a structured approach to workplace organization, inventory control, or internal material flow. The revitalization of the warehouse had not been prioritized, as other maintenance activities were considered a higher priority. In addition, employee training on the benefits of using Kaizen methods was required.

Structured implementation approach

To address the identified warehouse management issues and establish a more organized and reliable operation, a structured implementation approach was adopted, focusing on workplace organization, inventory control, and standardization:

• Training client employees in 5S principles.
• Full 5S implementation across the warehouse.
• Introduction of a Kanban inventory system.
• Definition and implementation of standard operating procedures.
• Installation and repositioning of shelving using Total Flow Management.

Figure 1 – Example of better inventory management

Turning improvements into lasting value

• Safer working conditions and improved employee morale.
• 40% increase in daily warehouse productivity.
• 65% reduction in warehouse floor space usage.
• $1.35 million in savings from efficiency gains and elimination of duplicate orders.
• Replication of the initiative across other locations.

These results demonstrate that structured workplace organization and disciplined inventory management can deliver sustainable operational and financial benefits in mining support functions.

Project 4: Maintenance shop expansion review

The client planned to expand maintenance shops to meet growing demand and centralize support functions. The Kaizen Institute was engaged to review the expansion to verify that the layout was fit for purpose from a Lean perspective and to identify opportunities for significant improvement.

The identified root causes were related to space allocation and the functional layout of the maintenance area. Each maintenance department was requesting additional shop floor space to meet its operational demands. At the same time, separating welding and fabrication activities from equipment disassembly, machining, rebuilding, and reassembly was deemed essential to improving overall equipment reliability. Additionally, co-locating engineering and maintenance teams was recognized as a way to enhance technical support for both project execution and ongoing maintenance operations.

Approach taken

To evaluate the proposed expansion and verify that the layout was fit for purpose from a Lean perspective, a structured assessment of space utilization and material flow was conducted, with a focus on maximizing the use of existing facilities:

• Lean assessment of existing space utilization.
• Optimization of work areas and offices by role and function.
• Application of Total Flow Management to equipment layout and material flow through the shop.
• Implementation of 5S to optimize and free up additional space.

Figure 2 – Example of 5S implementation

Tangible results achieved

This structured approach delivered significant operational and financial benefits while improving collaboration, safety, and overall working conditions:

• Analysis revealed low utilization of existing space, eliminating the need for new facilities.
• Capital expenditure avoided, generating $20 million in cost savings.
• Increased capacity within existing facilities to accommodate additional maintenance workers and larger materials/equipment to be worked on.
• Improved collaboration between engineering and maintenance, as well as the quality and efficiency of maintenance.
• Enhanced EH&S compliance and employee morale.

These results highlight that a disciplined, Lean-based assessment of space and flow can unlock substantial value without additional capital investment.

Project 5: Optimization of mining operations

The mine owner aimed to maximize production to increase revenues and secure a larger allocation within the local potash marketing consortium (Canpotex).

The root causes revealed a lack of real-time visibility of production KPIs, a long ramp-up time at the start of each shift, and limited communication and coordination between mine areas.

Improvement strategies implemented

• Definition of KPIs and abnormality management processes.
• Development of Operational Standard Work.
• Standardized communication and coordination routines.
• Early-shift course correction through abnormality management.
• Elimination of zero-production periods via crew and equipment coordination.
• Implementation of visual management systems.

Figure 3 – Example of visual management systems

Benefits and impact         

The implementation of these strategies delivered significant and sustained improvements in production performance, with a direct impact on long-term business value:

• Annual production exceeded nameplate capacity by 10%.
• Hundreds of millions of dollars in future revenue secured through increased Canpotex allocation.

Conclusion: Building a foundation for sustainable performance

Across multiple projects and operational areas, the structured application of Lean and Kaizen principles enabled the client to dramatically improve project delivery, operational stability, safety, and financial performance.

By combining rigorous methodologies with strong people engagement and visual management, the organization built a foundation for sustained operational excellence in a highly demanding mining environment.

We respect our clients’ confidentiality agreements. While names have been altered or omitted, the results are real.