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

A -- EXERCISE OPTION CLINS 0004, 0005 AND 0006 POC Bill Melanson, Negotiator, (703) 325-0495, Billy G. Burks, Contracting Officer, (703) 325-5021 CNT DSWA01-98-M-0174-P00001 AMT $708,525 DTD 063098 TO Horizon Trading Company, Inc., 1510 H. Street NW, Washington, DC 20005 Posted 07/01/98. (0182)

Loren Data Corp. http://www.ld.com (SYN# 0473 19980706\A-0009.AWD)