Main Office                         Cra. 43 A # 1 sur 188 Of. 701
                                           Medellín
                                           Colombia
Telephone:                         (57)(4) 316 6300
Fax:                                    (57)(4) 321 1417

Bogotá Agency                   Cra. 15 # 92 - 36 Of. 301
                                           Bogotá
                                           Colombia
Telephone:                         (57)(1) 256 9455
Fax:                                    (57)(4) 257 0328

Mail:                               serviciocliente@choucairtesting.com