Silvercorp Metals 10-Q 2009 Q3 Quarterly report

Exhibit 32.1

Certification of Chief Executive Officer Pursuant to Section 1350 of Chapter 63 of

Title 18 Of The United States Code

I, J. Patrick Spainhour, the Chief Executive Officer of The ServiceMaster Company, certify that (i) the Report on Form 10-Q for the quarter ended September 30, 2009, fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934 and (ii) the information contained in such Form 10-Q fairly presents, in all material respects, the financial condition and results of operations of The ServiceMaster Company.

/s/ J. Patrick Spainhour

J. Patrick Spainhour

November 16, 2009

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