Exhibit 32.4
CERTIFICATION PURSUANT TO 18 U.S.C. SECTION 1350,
AS ADOPTED PURSUANT TO
SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002
In connection with Amendment No. 1 on Form 10-K/A to the Annual Report on Form 10-K of Emergent BioSolutions Inc. (the “Company”) for the period ended December 31, 2006 as filed with the Securities and Exchange Commission on the date hereof (the “Report”), the undersigned, R. Don Elsey, Vice President Finance, Chief Financial Officer and Treasurer of the Company, hereby certifies, pursuant to 18 U.S.C. Section 1350, that:
| (1) | The Report fully complies with the requirements of Section 13(a) or 15(d) 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. |
Date: March 28, 2007 | /s/R. Don Elsey |
R. Don Elsey
Vice President Finance, Chief Financial Officer and Treasurer
(Principal Financial Officer)
