Carl Spaeter GmbH

Duisburg, Germany

Europe Commerce Sarl

Steinsel, Luxembourg

H.C. Starck GmbH & Co. KG

Laufenburg, Germany

Hacke Maschinenbau

Vallendar, Germany

Lonza AG

Basel, Switzerland

Mineralmühle Leun

Rau GmbH & Co. KG

Leun, Germany

Motim Electrocorundum Ltd.

Mosonmagyaróvár,

Netzsch-Condux

Mahltechnik GmbH

Hanau, Germany

Possehl Erzkontor GmbH & Co. KG

Lübeck, Germany

Rave, Ortwin

Diplom-Mineraloge

Produkte + Dienstleistungen

Koblenz, Germany

Samrec (Pty) Ltd.

Head Office

Olifantsfontein, South Africa

SGIK GmbH

Saint-Gobain Industriekeramik

Köln, Germany

Shanyang Subwhite Fused

Corundum Factory

Jiaozuo / Henan, China

Warwick Adriss SA

Cergy-Pontoise, France

Washington Mills

Electro Minerals Corporation

Niagara Falls, United States

Wester Mineralien GmbH

Alfter-Witterschlick, Germany

Zhengzhou Yufa (Group) Ltd.

Xingyang, China