West African Drilling Services Pty Ltd
H/No. 142 (Location)
2nd Norla Street
North Labone Cantonments
Accra, Ghana, West Africa

P.O. Box C2369 (Postal)
Cantonments
Accra, Ghana, West Africa
233 (0) 21 778 744   FAX: 233 (0) 21 772 879
stanmine@ncs.com.gh

West African Drilling Services Pty Ltd
Zone Industrielle-Route De Sotuba (Location)
Porte No 2410
Bamako, Mali, West Africa

P.O. Box E3863 (Postal)
Bamako, Mali, West Africa
223 221 4832 or 223 221 2125  FAX: 223 221 2126

West African Drilling Services
Zone Industrielle Route de Sotuba
Porte 2410, Bamako, Mali, West Africa
223 221 4832   FAX: 223 221 2126

C/- Semos Sadiola
Sadiola Mine Site
1230, Rue 376, Niarela
BP E1194, Sadiola, Mali
874 762 482 542   FAX: 874 762 482 543

Ausdrill - Burkina
Ausdrill, Burkina SARL
Immeuble OBOUF 11 - 1erETAGE
AVENUE LOUDUN
11 BP 15 CMS OUAGADOUGOU
226 300 585   FAX: 226 300 574

Guinea - Kiniero Site
0011 873 761 307540

Guinea - Lero Site
0011 873 7614 023048

Stanley Mining Services (Tanzania) Limited
Plot 126 & 128 (Location)
Bwiru Kijijini
Block "A" Pasiansi
Mwanza, Tanzania

P.O. Box 2372 (Postal)
Mwanza, Tanzania
255 (0) 78 4529634-7   FAX: 255 (0) 78 4560465
info@layne.co.tz

Stanley Mining Services Pty Ltd
Plot No. 1746 (Location)
Nakambala Road, Industrial Area
Ndola, Zambia

P.O. Box 71667 (Postal)
Ndola, Zambia
260 (0) 2 651 311   FAX: 260 (0) 2 651 323

Layne Drilling Pty Limited
26 Leviathan Street
Boulder, WA 6432 Australia
61 (0) 8 9093 3701   FAX: 61 (0) 8 9093 4301

Stanley Mining Services Pty Ltd
28-32 Irvine Drive (Location)
Malaga, WA 6090 Australia

Locked Bag 1 (Postal)
Malaga, WA 6944 Australia
61 (0) 8 9248 5022   FAX: 61 (0) 8 9248 5044
sw1@layne.com.au

Congo - Dikulushi Site

Zambia - Ndola
Plot No. 1746
Nakambala Road, Industrial Area
Ndola, Zambia
260 (0)2 651 311

International Directional Services
1072 Webbwood Drive, Unit #4
Sudbury, Ontario
Canada P3C 3B7
(705) 671-6097   FAX: (705) 671-9427

Tecniwell S.r.l.
Via I Maggio, 61
29027 Podenzano (PC)
Italy
0039 523 524086   FAX: 0039 523 524088
tw@tecniwell.com
1646@laynechristensen.com
http://www.tecniwell.com/

Layne de Mexico, S.A. de C.V.
Boulevard de Los Seris #133
Parque Industrial
C.P. 83299
Hermosillo, Sonora, Mexico
011 52 (662) 251 01 30   FAX: 011 52 (662) 251 01 31
1021@laynechristensen.com

Boytec Sondajes de Mexico S.A. de C.V.
Blvd. Kino No. 309
Piso No. 14
Edificio Torre de Hermosillo
Col. Country Club
Hermosillo, Sonora, Mexico
52 (662) 289-0176   FAX: 52 (662) 289-0149
boytec@rtn.uson.mx

Tecno Andina de Sondajes S.A.
S/No Esquina Suroeste Godoy Cruz #5501
Mendoza - Argentina
54 (261) 4521-550   FAX: 54 (261) 4523-789
tecnoandina@infovia.com.ar

Boytec Bolivia S.R.L.
Calle Jacinto Benavente #250
Sopocachi
La Paz, Bolivia
(591 2) 242-2987 Phone and FAX
boytecbo@ceibo.entelnet.bo

Boyles Bros. do Brasil Ltda.
Av.Dr Gentil de Moura, 546 Ipiranga
04278-000 - Sao Paulo - SP
Brazil
Phone PABX: (5511) 5063 3055   FAX: (55 11) 5061 5461
roder@roder.com.br

Christensen Chile S.A.
Casilla No. 1150 Correo Central (P.O. Box)
Santiago, Chile
56 (2) 620-7800   FAX: 56 (2) 620-7899
christen@christensen.cl

UHCO
Pedro Aguirre Cerda No. 7853, Sector Barrio Industrial
Antofagasta, Chile
56 (55) 232440   FAX: 56 (55) 232868
uhco@christensen.cl

Geotec Boyles Bros. S.A.
Casilla 28-D Correo Central (P.O. Box)
Lo Campino 432, Quilicura (Street Address)
Santiago, Chile
56 (2) 620-7700   FAX: 56 (2) 620-7799
geotec@geotec.cl

Geotec Boyles Bros. S.A.
Pedro Aguirre Cerda No 7853, Sector Barrio Industrial
Antofagasta, Chile
56 (55) 293888   FAX: 56 (55) 295216
jalvarez@geotec.cl

Boyles Bros. Diamantina S.A.
Casilla 1955, Lima 100 (P.O. Box)
Av. Santa Ana No 186, ATE Vitarte (Street Address)
Lima, Peru
51 (1) 326-0494   FAX: 51 (1) 326 0502
boyles+@amauta.rcp.net.pe

Geotec S.A.
Casilla 1955, Lima 100 (P.O. Box)
Av. Santa Ana No. 186, ATE Vitarte (Street Address)
Lima, Peru
51 (1) 326-0494   FAX: 51 (1) 326-0092
geotec+@amauta.rcp.net.pe