5, ch. de Rovéréaz 1012 Lausanne Switzerland Phone: +41 21 654 5352 Fax: +41 21 654 5300 info@interacid.com Mailing adress: P.O. Box 164 1000 Lausanne 12 Switzerland Interacid group contacts:

Sulphuric Acid Trading Company, Inc. (SATCO)
5802 Breckenridge Parkway – Suite 200
Tampa, Florida 33610, USA

Tel. +1 813 225 2000
Fax +1 813 225 1001

email: info@satcoinc.net

Interacid Chile Ltda. (ICL)
Interacid Trading SA (ITC)
Isidora Goyenechea Nr. 3600 - Office 602
Las Condes - Casilla 13476 - Santiago 21 – CHILE

Tel. +56 2 334 71 41
Fax +56 2 334 72 60

email: info@interacid.cl

Interacid Australia Pty Ltd. (IAPL)
Suite 915, 1 Queens Road,
Melbourne - Victoria 3004 – Australia

Tel. +61 3 9863 9777
Fax +61 3 9863 9776

email: info@interacid.com.au