Terresis,
protect what matters
An essential mineral resource, magnesia offers an unlimited field of applications.
It is through research and innovation that we can unlock its full potential, and ensure the balance necessary for a sustainable future.
Magnesium solutions for 4 key sectors
Where others see only isolated areas, we capitalize on our cross-sector expertise: as close as possible to the requirements of our customers and the reality on the ground, we design innovative and differentiating solutions that shape a sustainable future for all.
Latest News
Throughout the year, Terresis’ Business Units engage with professionals across their respective industries. Discover the events where our teams welcome you to discuss innovative, sustainable and value-creating solutions.
ExpoCAMACOL 26
- 26/08/2026
- 29/08/2026
Meet the Terresis Industrial Minerals team at ExpoCAMACOL Booth 34, Gran Salón, International Pavilion, from August 26 to 29, 2026, and discover how XPMAG™ magnesium-based technology for concrete shrinkage compensation can add value to your project.
Learn more about our magnesium-based solutions for the construction industry.
ABM WEEK 10
- 08/09/2026
- 10/09/2026
Meet the Terresis MAGNA team at ABM Week 10, Booth 61, one of the leading events for the metallurgy, materials and mining industries in Latin America. This event will be an opportunity to showcase our magnesium-based solutions, exchange with industry stakeholders and share our expertise in support of industrial process performance.
Potato Europe
- 09/09/2026
- 10/09/2026
On September 9, 2026, the Terresis Agriculture teams will be attending PotatoEurope, one of Europe’s leading events dedicated to the potato industry. On this occasion, our experts will welcome visitors at Booth ZC14 to discuss today’s agronomic challenges and innovative solutions designed to support growers.
Learn more about our magnesium-based solutions for crop production.
SPACE 2026
- 15/09/2026
- 17/09/2026
Our Terresis Agriculture commercial and technical teams will be pleased to welcome you to SPACE 2026 in Rennes, France, Hall 2 – Booth E58, from September 15 to 17, 2026, to share their expertise in animal nutrition and discuss solutions that contribute to the performance and sustainability of tomorrow’s livestock farms.
Learn more about our magnesium-based solutions for livestock animals.
BATIMAT 2026
- 28/09/2026
- 01/10/2026
Our Terresis Industrial Minerals team of experts will be present at BATIMAT 2026, Hall 1 – Booth T008, from September 28 to October 1, 2026, to highlight the potential of magnesium-based technologies in construction.
Mastery of the entire value chain
From extraction to application, we have complete control over every step: from direct access to raw material from our Brazilian and Spanish mines, to the delivery of our high value-added magnesium products, we guarantee unrivalled quality and reliability.
Terresis reveals the potential of magnesia
It all starts in our own mines
Protecting what matters most
For more than 50 years, we have been developing unparalleled expertise in magnesium extraction and the transformation of magnesium solutions. With their deep and extensive knowledge, our teams are pioneers in designing innovative solutions: they are designing a sustainable future and reinventing the way the world uses magnesia. The goal? Be one step ahead and innovate consciously.
Innovation at the service of customers
Driven by their passion and supported by the strength of the Groupe Roullier, our researchers, engineers and technicians design solutions that revolutionize the way we use magnesia.
Our CSR commitments
In the face of environmental and societal challenges, every action we take is part of an ambitious sustainability strategy: ensuring the right balance between what we extract and the preservation of our planet.
960
employees
+ 50 years
of experience
4
mines
4
production sites
8
offices
70
countries of sale
Join the Terresis adventure
Industry, logistics, commerce, support functions: we are looking for our next talents!
“I joined Terresis MAGNA in 2006 as a Traveling Technician, with the desire to invest myself in an innovative company. Quickly, I developed my technical skills and strengthened customer relations. In 2008, I evolved into the position of Market Manager for France, Benelux, Morocco, and Italy, broadening my commercial responsibilities and strategic vision. Since 2018, I have held the position of Commercial Director Europe, where I lead a team and consolidate our presence in key markets, promoting the values of proximity, technical expertise, and trust that are the strength of Terresis MAGNA. Passionate about training and supporting teams, I believe that listening, respect, and solidarity are essential for the growth of employees and the success of Terresis MAGNA. I am proud of the journey, very grateful for the trust placed in me, and motivated to continue developing our business in the future.“
Laurent LAFITTE – Commercial Director Europe Terresis MAGNA.