AmSty Headquarters 24 Waterway Avenue, Suite 1200 The Woodlands, TX 77380 Phone (toll free): 844.512.1212 Phone (local): 832.616.7800 Email: This email address is being protected from spambots. You need JavaScript enabled to view it. Product Stewardship Questions: This email address is being protected from spambots. You need JavaScript enabled to view it. Our Facilities Gales Ferry, Connecticut (Allyn’s Point) 1761 Rte 12 Gales Ferry, CT 06335 Phone: 860-440-7850 Fax: 860-440-7838 Ironton, Ohio (Hanging Rock) 925 County Road 1-A Ironton, OH 45638 Phone: 740-302-8667 Fax: 740-302-8706 Channahon, Illinois (Joliet) 26332 South Frontage Road - W Channahon, IL 60410 Phone: 815-418-6430 Fax: 815-418-6424

Marietta, Ohio 17401 State Route 7 Marietta, OH 45750 Phone: 740-760-0740 Fax: 740-760-0724 Marietta, Ohio Technology & Research Center (MTC) Route 7 South Marietta, OH 45750 Phone: 740-760-0649 Fax: 740-760-0712 St. James, Louisiana 9901 Highway 18 P. O. Box 78 St. James, LA 70086 Phone: 225-331-3200 Fax: 225-331-3269 Torrance, California 305 Crenshaw Blvd. Torrance, CA 90503 Phone: 424-488-3757 Fax: 424-488-3751 Cartagena, Colombia Mamonal Km 14 Arpatado Aereo 2888 Cartagena, Colombia 130013 Phone: +(57) 5 6700500