0000950172-02-001622 8-K 2 20020723 5 7 20020726 CHEMFIRST INC 0001026601 2870 640679456 MS 1231 8-K 34 001-12547 02712038 P O BOX 1249 JACKSON MS 39202 6019487550 P O BOX 1249 JACKSON MS 39202 8-K 1 s320588.txt EX-2 3 ch320321.txt EXHIBIT 2.1 - AGREEMENT AND PLAN OF MERGER