Exhibit 15.1 Letter re: Unaudited Interim Financial Information FMC Corporation Chicago, Illinois Ladies and Gentlemen: With respect to the accompanying registration statement on Form S-8 filed by FMC Corporation, we acknowledge our awareness of the incorporation by reference of our report dated April 17, 2001 related to our review of interim financial information. Pursuant to rule 436(c) under the Securities Act of 1933, such report is not considered a part of a registration statement prepared or certified by an accountant or a report prepared or certified by an accountant within the meaning of Sections 7 and 11 of the Act. Very truly yours, /s/ KPMG LLP Chicago, Illinois July 6, 2001