Projects
How EPCM Scaled Antimony Production by 15× — Fast
Inside a High‑Velocity Execution Model That Delivers Under Real‑World Pressure
When market conditions shift fast, success belongs to the teams that can execute even faster. In early 2026, EPCM was brought in to support a time‑critical antimony production initiative in Bolivia — a project where speed, technical precision, and integrated execution were non‑negotiable. The client needed to move from limited monthly output to industrial‑scale production immediately, capitalizing on a narrow commercial window.
The Challenge: Industrial Scale, Zero Margin for Delay
This was not a greenfield project — far from it. EPCM had to deliver within a facility constrained by legacy electrowinning systems, non‑standard antimony operating conditions, and significant electrical and infrastructure limitations. To succeed, the team leaned not on theoretical optimization but on decisive, pragmatic engineering designed for real‑world constraints.
EPCM’s Integrated Execution Model
From the outset, EPCM treated the project as a capacity‑driven execution challenge, aiming to bring production online rapidly while ensuring operational stability and future growth potential. By mobilizing its engineering, supply, fabrication, and field‑execution teams as a single coordinated unit, EPCM accelerated every stage of delivery:
- Rapid engineering and facility reconfiguration
- Full integration of antimony electrowinning systems — cathodes, bus bars, power supplies, transformers
- Expansion of physical plant capacity for immediate throughput increases
- On‑site construction supervision enabling real‑time adjustments
- Commissioning and production readiness aligned to aggressive targets
The Results: 15× Growth, Delivered at Speed
- Production capacity increased from ~6 t/month to ~150 t/month — a 15× scale‑up
- Facility expansion and system integration were completed under a demanding schedule
- Antimony production start‑up reached the cusp of launch
- Operation positioned for future expansion phases, including potential North American initiatives
Why EPCM?
- Expertise in specialized antimony electrowinning and metallurgical execution
- Ability to transform legacy infrastructure into scalable industrial systems
- Integrated engineering, equipment, construction, and commissioning capabilities
- Alignment of technical delivery with urgent commercial imperatives
About EPCM
Established in 1980, EPCM offers integrated solutions across Engineering, Automation, Service & Supply, with more than 45 years of global experience supporting complex metallurgical operations from early design through long‑term plant operation.
Talk to our experts: info@epcm.com
