For Additional Information Contact :

Susumu Okabe

The Mining and Materials Processing Institute of Japan(MMIJ)
9-6-41 Akasaka, Minatoku, Tokyo 107-0052, Japan
Fax: 81-3-3403-1776
E-Mail: lead-zinc2005@mmij.or.jp

John E. Dutrizac

CANMET
555 Booth Street, Ottawa, Ontario, K1A 0G1, Canada
Phone: 1-613-995-4823
Fax: 1-613-996-9041
E-Mail: jdutriza@nrcan.gc.ca

Andreas Siegmund

RSR Technologies, Inc.
2777 Stemmons Freeway, Suite 1800, Dallas, Texas, 75207, USA
Phone: 1-214-583-0359
Fax: 1-214-631-6092
E-Mail: asiegmund@rsrtechnologies.com

Norbert L. Piret

Piret & Stolberg Partners
Im Licht 12, D-47279, Duisburg, Germany
Phone: 49-203-72-2396
Fax: 49-203-72-3947
E-Mail: nlp.p-sp.dbg@T-Online.de