PART IV  EXHIBIT 32.1 CEO Certification of Annual Report EXHIBIT 32.2 CFO Certification of Annual Report I, Pierre R. Brondeau, President and Chief Executive Offi cer of FMC (“the Company”), certify, pursuant to Section 906 of the Sarbanes-Oxley  Act of 2002, 18 U.S.C. Section 1350, based on my knowledge that: Dated: February 22, 2011 /s/ Pierre R. Brondeau Pierre R. Brondeau President and Chief Executive Officer I, W. Kim Foster, Executive Vice President and Chief Financial Offi cer of FMC (the “Company”), certify, pursuant to Section 906 of the Sarbanes- Oxley Act of 2002, 18 U.S.C. Section 1350, based on my knowledge that: Dated: February 22, 2011 /s/ W. Kim Foster Executive Vice President and Chief Financial Officer W. Kim Foster (2)  the information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company. (1)  the Annual Report on Form 10-K of the Company for the year ended December 31, 2010 (the “Report”) fully complies with the requirements  of Section 13(a) of the Securities Exchange Act of 1934 and (1)  the Annual Report on Form 10-K of the Company for the year ended December 31, 2010 (the “Report”) fully complies with the requirements  of Section 13(a) of the Securities Exchange Act of 1934 and (2)  the information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company. 86 FMC CORPORATION    2010 Form 10K