1 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES AND EXCHANGE ACT OF 1934 December 29, 1998 (Date of Report) AQUA-CHEM, INC. (Exact name of registrant as specified in its charter) Delaware 333-60759 39-1900496 (State or other (Commission File (IRS Employer jurisdiction of Number) ID Number) incorporation) 7800 North 113th Street P.O. Box 421 Milwaukee, Wisconsin 53201 (Address of principal executive offices) (414) 359-0600 (Registrant's telephone number, including area code) 2 ITEM 5. OTHER EVENTS On December 30, 1998, Aqua-Chem, Inc. (the "Registrant") issued a press release announcing its change in fiscal year and anticipated financial and operating results for the quarter ended December 31, 1998. A copy of said press release is filed as Exhibit 99.1 to this report and is incorporated herein by reference. ITEM 7. FINANCIAL STATEMENTS AND EXHIBITS (c) Exhibits: 99.1 Press release announcing change in fiscal year and anticipated financial and operating results for the quarter ended December 31, 1998. ITEM 8. CHANGE IN FISCAL YEAR On December 29, 1998, the Registrant's Board of Directors resolved to change its fiscal year from a twelve month calendar year of January 1 through December 31 of each year to the twelve month period of April 1 through March 31 of each year, effective immediately. The Registrant will file a Quarterly Report on Form 10-Q for the quarter ended December 31, 1998. 3 SIGNATURES Pursuant to the requirements of the Securities Exchange Act of 1934, as amended, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized. AQUA-CHEM, INC. (Registrant) By: /s/ Jeffrey A. Miller -------------------------- Name: Jeffrey A. Miller Title: Chairman of the Board, President, Chief Financial Officer and Duly Authorized Officer Date: January 12, 1999 4 AQUA-CHEM, INC. EXHIBIT INDEX TO CURRENT REPORT ON FORM 8-K Incorporated Exhibit Herein By Filed Number Description Reference Herewith - ------ ----------- --------- -------- 99.1 Press release announcing change in X fiscal year and anticipated financial and operating results for the quarter ended December 31, 1998.