Amendment No. 006 to Technical Services Agreement between IBM and CDI Corporation

Exhibit 10.1

Dear Supplier,

This letter serves as Amendment No. 006 to the above subject Agreement which the parties thereto do mutually agree to amend as follows:

The parties agree to extend the Expiration Date of the SOW through the end of the year. The current language in Section 4.1 “Term” of the SOW will be replaced with the following:

The term of this SOW shall begin on the Effective Date and shall remain in effect until the later of December 30, 2011 (“Expiration Date”) or until Deliverables and Services are completed (“Term”).

Except as amended herein, all other terms and conditions of the subject Agreement shall remain in full force and effect.

The parties acknowledge that they have read this Amendment, understand it, and agree to be bound by its terms and conditions. Further, they agree that this Amendment and the subject Agreement are the complete and exclusive statement of the agreement between the parties, superseding all proposals or other prior agreements, oral or written, and all other communications between the parties relating to this subject.

Please have your authorized representative indicate acceptance thereof by signing both copies of the Amendment and returning both copies (via overnight air) by September 23, 2011 to the attention of Shyra Laws-Daniels at the address above.

Very truly yours,

Daniel Schaefer

US Sourcing Manager, Technical Services