TREXCO International Ltd.

22 Achilles Close, Rolls Road

London, UK

SE1 5HE

Contact: Omar Holguin, Nidia Gonzalez

Tel: +44 207 237 7649

Fax: +44 870 836 2127

Email: info@trexco.net

TREXCO International (Chile)

Avenida Arturo Pratt No 430

Oficina 7

Arica, Chile

Contact: Pablo Zepeda

Tel/Fax: +56 58 316 995

Mob: +56 9 9414 3102

Email: pablo@trexco.net

TREXCO International (Bolivia)

Calle Villamontes No 29

Zona Braniff

Santa Cruz, Bolivia

Contact: Dorys Padilla

Tel: +591 33 203686

Tel: +591 7501 7340, +591 79061993

Email: dorys@trexco.net