SA-ALC/Contracting Directorate/sfk; 485 Quentin Roosevelt Road, Suite 12; Kelly AFB, TX 78241-6419

91 -- LIQUID NITROGEN, GRADE B, TYPE II, IAW MIL-PRF-27401D -- RE:F41608-98-R-91017 POC Mr.Robert L. Mayfield/SFK/210-925-1177 CNT F41608-99-D-0534 AMT EST. $1,030,000.00 LINE 0001 thru 0007, w/appl. sublines DTD 090199 TO MATHESON TRI-GAS INC. 161 CORPORATE CENTER SUITE 200, 6225 N. STATE HWY 161 IRVING, TX 75038-6509 E-MAIL: Send E-Mail to the POC, robert.mayfield@kelly.af.mil. Posted 08/31/99 (D-SN374677). (0243)

Loren Data Corp. http://www.ld.com (SYN# 0598 19990902\91-0001.AWD)