0000950136-04-001810 8-K 6 20040601 5 7 20040601 BHA GROUP INC 0000801128 3564 431416730 DE 0930 8-K 34 000-15045 04842175 8800 E 63RD ST KANSAS CITY MO 64133 8163568400 8800 E 63RD STREET KANSAS CITY MO 64133 8-K 1 file001.txt FORM 8-K EX-99.1 2 file002.txt AGREEMENT AND PLAN OF MERGER EX-99.2 3 file003.txt VOTING AGREEMENT EX-99.3 4 file004.txt PRESS RELEASE ISSUED JUNE 1, 2004 EX-99.4 5 file005.txt AMEND. NO.1 TO RIGHTS AGREEMENT EX-99.5 6 file006.txt AMEND. NO.2 TO RIGHTS AGREEMENT