Defense Special Weapons Agency, 6801 Telegraph Road, Alexandria, VA 22310-3398

A -- EXERCISE OF OPTION IV POC David Nemerow, Negotiator, (703) 325-6627, Billy G. Burks, Contracting Officer, (703) 325-5021 CNT DNA001-93-C-0192-P00017 AMT $447,212 DTD 102197 TO PRIME: USSBA, Washington Districe, P.O. Box 34500, Washington, DC 20043; SUB: Usatrex International, Inc., 1953 Gallows Road, Vienna, VA 22182 (0295)

Loren Data Corp. http://www.ld.com (SYN# 0233 19971024\A-0005.AWD)