SMZ-Jelsava a.s.

SMZ-Jelšava a.s. is the largest magnesite producer in Slovakia and one of the world’s leading manufacturers of dead-burned magnesia (DBM) and unshaped refractory materials. Our unique high-iron magnesite, containing up to 8% Fe₂O₃ and exceptionally low SiO₂ (0.5–1%), ensures outstanding sinterability, strength, and resistance to aggressive slags. These properties provide competitive advantages that are hard to overstate. SMZ-Jelšava supplies high-quality magnesite powders and unshaped refractories for refractory producers and steelmaking plants in more than 50 countries worldwide — a reliable European supplier of unique, high-quality magnesite materials.