Physical address:

187 Perez Coral Road
Barrigada, Guam 96913

Mailing address:

P.O. Box 8170
Tamuning, Guam 96931

Telephone: (671) 646-5500

Facsimile (fax): (671) 646-6600

Emails:

office@geoguam.com (general)

ukrit@geoguam.com (engineering)

mdi@geoguam.com (drilling)

accounting@geoguam.com (accounting)

geotesting@geoguam.com (Saipan)