
Imerys S.A.
Brand
Imerys
Founded
1880
Workforce
12,300
Presence
40+ countries globally
Facilities
120+ mining sites and 150+ processing facilities across 40+ countries
Headquarters
France
Market
Euronext Paris: NK

Brand
Imerys
Founded
1880
Workforce
12,300
Presence
40+ countries globally
Facilities
120+ mining sites and 150+ processing facilities across 40+ countries
Headquarters
France
Market
Euronext Paris: NK

Brand
Specialty Minerals (MTI)
Founded
1992
Workforce
4,000
Presence
Operations in 34 countries
Facilities
60+ major production facilities plus satellite PCC plants at customer paper mills worldwide
Headquarters
United States
Market
NYSE: MTX
Brand
Sibelco
Founded
1872
Workforce
5,075
Presence
30+ countries across Europe, Americas, and Asia-Pacific
Facilities
200+ production sites across 30+ countries
Headquarters
Belgium
Market
Euronext Brussels: BE0944264663

Brand
Omya
Founded
1884
Workforce
9,000
Presence
50+ countries globally
Facilities
180+ production sites across 50+ countries
Headquarters
Switzerland
Market
Private (family-owned)

Brand
Lhoist
Founded
1889
Workforce
6,400+
Presence
Operations in 25+ countries; sales network reaching 80+ countries
Facilities
130+ physical plants and logistics terminals globally
Headquarters
Belgium
Market
Private (family-owned, over 130 years)
Brand
Clariant
Founded
1995
Workforce
10,465
Presence
Global, with strong presence in Europe, Americas, and Asia-Pacific
Facilities
73 production sites globally
Headquarters
Switzerland
Market
SIX: CLN.SW
Brand
U.S. Silica (incl. EP Minerals)
Founded
1900
Workforce
1,900
Presence
Production concentrated in North America; high-value filtration products exported globally
Facilities
26 highly automated operating mines and deep processing facilities in the United States
Headquarters
United States
Brand
Tolsa
Founded
1957
Workforce
900+
Presence
Products exported to 80+ countries; market leader in Southern Europe and Latin America
Facilities
Proprietary sepiolite mines in Spain; advanced nano-scale modification facilities in Madrid region
Headquarters
Spain
Market
Private (not listed)

Brand
Yuantong Diatomite
Founded
1996
Workforce
600+
Presence
Products exported to 30+ countries; dominant in Northeast Asian water filtration and absorbent markets
Facilities
Captive diatomaceous earth mines in Changbai Mountain region, Jilin Province; high-temperature calcination and fine classification facilities
Headquarters
China
Market
Private (not listed)

Brand
Fenghong
Founded
2008
Workforce
800+
Presence
Products exported to 60+ countries; serving AkzoNobel, Nippon Paint, and global water treatment markets
Facilities
8 captive mines with 10M+ tons bentonite reserves; advanced processing facilities in Anji, Zhejiang
Headquarters
China
Market
Not Listed (Private)