Synthetic Biologics, Inc.
Investor Relations Department
T: (301) 417-4364
info@syntheticbiologics.com

Corporate Stock Transfer, Inc.
3200 Cherry Creek Drive South
#430
Denver, CO 80209
T: (303) 282-4800

BDO USA, LLP
755 West Big Beaver
Suite 1900
Troy, MI 48084
T: (248) 362-2100

Gracin & Marlow LLP
The Chrysler Building
405 Lexington Avenue, 26th Floor
New York, NY 10174
T: (212) 907-6457