From water treatment and soil stabilization to emission control and demanding industrial processes, our products support operations that must perform consistently - because when they don’t, the consequences are immediate. Founded in 1889 and privately held, we combine technical expertise, local proximity and global scale to support customers as their needs evolve - building relationships designed to last. Our experienced teams stay close to the field - focused not just on supply, but on making things work when it matters most
Much of what keeps modern life running happens behind the scenes: water treated to the highest standards, steel performing under pressure, soils remaining productive, industrial sites operating safely day after day.
Our customers make this possible. They manage complex environments where reliability isn’t optional and even small variations can have serious consequences. We work alongside them at the core - helping their operations perform consistently, safely and without interruption, even in demanding conditions.
Customers count on us time and again - and we take that responsibility seriously. We ensure consistency and continuity in critical processes, even in demanding conditions. Our reliability is built on disciplined operations, seasoned teams and a long-term mindset.
That’s how we build trust: steadily, deliberately and over time.
Supply alone is never enough. We work side by side with customers - close to where performance is measured and decisions matter. We question, test and share practical insight to fine-tune performance and anticipate change. As conditions evolve, we adapt specifications and provide on-site support when it matters.
This is how we turn technical expertise into measurable operational value.
As a privately owned Group, we think beyond short-term cycles. Our independence enables ongoing investment in people, assets and relationships - ensuring continuity across regions and market conditions. For customers, this means stability, resilience and a partner committed for the long run.
Behind every delivery and improvement are teams who understand what is at stake. We stay close to the field and to our customers’ challenges. Supported by Group-wide expertise, our people combine local knowledge with global technical strength - available when needed, and accountable for results. With more than 6,400+ colleagues across 75+ nationalities, we bring diverse perspectives to complex industrial environments - guided by respect, integrity and courage.
This is how we build partnerships that last.
130+
sites and terminals
2
R&D centers
>80
country sales reach
6,400+
employees around the world

Lhoist operates one of the world’s largest networks for lime, dolime and process minerals. With operations in more than 20 countries, 135+ sites and 80+ country sales reach across Europe, North America, Latin America and Asia-Pacific, we combine strong local presence with global coordination. This scale helps customers secure supply, manage risk and operate with confidence.