RHI Magnesita(RHIM)
HQ AT35% share
World's largest refractory materials producer, supplying ~35% of global steel industry refractory needs; controls key magnesite mines in Austria and Brazil; steel accounts for ~70% of global refractory consumption.
manufactured · input
Refractory materials (magnesia-carbon bricks)
High-temperature ceramic linings for BOF converters, EAF vessels, and ladle furnaces; replaced every 50–300 heats; primarily magnesia-based
5
Source countries
3
Companies
1
Goods affected
0
Claims on record
What depends on it
Goods that need this input
1 essential American goods rely on refractory materials (magnesia-carbon bricks) somewhere upstream in their supply chain.
Who makes it
Supplier companies
3 companies produce refractory materials (magnesia-carbon bricks).
Vesuvius plc
HQ GB8% share
UK-listed global refractory and molten metal flow control company; ~£1.8B revenue; produces continuous casting refractories (slide gates, nozzles, stopper rods) and steel plant ceramics. Flow control is Vesuvius's specialty — the nozzles that control molten steel flow from ladle to tundish to mold in continuous casting.
Krosaki Harima Corporation
HQ JP7% share
Japan's largest refractory company; Nippon Steel subsidiary; produces magnesia-carbon bricks, high-alumina refractories, and monolithics for steel, glass, and cement industries. Kita-Kyushu Japan is primary production site; strong position in Japanese domestic market and export to Asian steel mills.