CSI Closure Systems Manufacturing de Centro America, Sociedad de Responsabilidad Limitada F-4 Registration of securities (foreign)

Exhibit 23.4

CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

We consent to the use in this Registration Statement on Form F-4 of our report dated February 24, 2011 (October 19, 2011, as to Note 30, and April 6, 2012, as to Note 31), relating to the consolidated financial statements of Graham Packaging Company Inc., appearing in the Prospectus, which is part of this Registration Statement. We also consent to the reference to us under the heading “Experts” in such Prospectus.

/s/ DELOITTE & TOUCHE LLP

Philadelphia, Pennsylvania

December 5, 2012