Headquarters
24 Waterway Avenue
Suite 1200
The Woodlands, TX 77380
888.55.AMSTY (26789) toll free

Gales Ferry, Connecticut (Allyn’s Point)
1761 Rte 12
Gales Ferry, CT 06335
Phone:  860-447-7290
Fax:  860-447-7330

Ironton, Ohio (Hanging Rock)
925 County Road 1-A
Ironton, OH 45638
Phone:  740-533-4000
Fax:  740-533-4158

Joliet, Illinois
26332 South Frontage Road
Channahon, IL 60410
Phone:  815-423-5921
Fax:  815-423-5431

Marietta, Ohio    
17401 State Route 7
Marietta, OH 45750
Phone:  (740) 374-2500
Fax:  (740) 374-0347
Emergency Hotline: (866) 291-2354

Marietta, Ohio Technology & Research Center (MTC)
Route 7 South
Marietta, OH 45750
Phone: (740) 374-0211
Fax: (740) 374-0285
Emergency Hotline: (866) 291-2354

St. James, Louisiana 
9901 Highway 18
P. O. Box 78
St. James, LA  70086
Phone:  (225) 746-5500
Fax:  (225) 746-5711

Torrance, California
305 Crenshaw Blvd.
Torrance, CA 90503
Phone:  310-224-5405
Fax:  310-533-5226

Cartagena, Colombia
Mamonal km 14
Cartagena
Apartado aéreo 2888
Columbia
Phone:  57-5-6688102
Fax:  57-6688116

Guarujá, Brazil
Av. Santos Dumont, 4.444
Conceiçãozinha – Guarujá - SP
CEP 11460 – 902
Phone:  55 13 3358 8437
Fax: 55 13 3358 8476