Exhibit 23.1 Consent of Independent Certified Public Accountants The Board of Directors Tekni-Plex, Inc. Somerville, New Jersey We hereby consent to the incorporation by reference in the Prospectus constituting a part of this Registration Statement of our report dated August 31, 2003, relating to the consolidated financial statements and schedule of Tekni-Plex, Inc. appearing in the Company's annual report on Form 10-K for the year ended June 27, 2003. We also consent to the reference to us under the caption "Experts" in the Prospectus. BDO Seidman, LLP Woodbridge, NJ /s/ BDO Seidman, LLP January 8, 2004