Please select your preferred method from the options below and feel free to call or write to the staff here at STI.

Worldwide Offices

STI USA - Head Office

555 Republic Drive No. 115
Plano, TX 75074 USA
Call using Skype +1 (214) 764-2917 phone
+1 (775) 205-1879 fax
sales@groupsti.com
engineering@groupsti.com
procurement@groupsti.com
logistics@groupsti.com
administration@groupsti.com

STI Colombia

Calle 45 #86-75
Unidad Residencial Parques del Lily
Santiago de Cali, Valle del Cauca
Colombia
Call using Skype +57 318 608 3297 phone

STI Mexico

Call using Skype +52 55 5351 1932 phone

STI UK

Call using Skype +44 (0) 207 993 2642 phone

STIES Australia

P.O. Box 423
Fortitude Valley, QLD 4006 Australia
Call using Skype +61 (0) 407 032 566 phone

STI Philippines

PDI Condominium, Unit 404
Archbishop Reyes Ave.,
cor. Panis St. Banilad
Cebu City 6000
Philippines
Call using Skype +63 32 231 9855 phone