Baymag Inc.

Calgary, Canada

Carl Spaeter GmbH

Duisburg, Germany

Fanglin Minerals

Dalian, China

Frank & Schulte GmbH

Essen, Germany

Grecian Magnesite S.A.

Athen, Greece

Harbison-Walker

Refractories Company

Pittsburgh, United States

Kuemas Kuetahya Magnyezit

Isletmeleri AS

Kuetaya, Turkey

M.A.F. Magnesite B.V.

BP Den Haag, Netherlands

Magnesita S.A.

Contagem MG, Brazil

Magnesitas Navarras S.A.

Zubiri / Navarra, Spain

Mineralmahlwerk Hamm

Voss GmbH & Co. KG

Hamm, Germany

Mineralmühle Leun

Rau GmbH & Co. KG

Leun, Germany

Naturstein- u. Mineralwerke

Thüringen GmbH

Steinach, Germany

NedMag Industries

Mining & Manufacturing B.V.

AE Veendam, Netherlands

NUOVA CIVES SRL

Vidracco, Torino, Italy

R. Hostombe Ltd.

Sheffield, United Kingdom

RAVENNA MILL SPA

Ravenna, Italy

Sogemet

Societe Generale des

Metaux Sogemet

Neuilly-sur-Seine Cedex, France

Young Mining Co. Pty. Ltd.

Young, Australia

Zaklady Magnezytowe

Ropczyce S.A.

Ropczyce, Poland