This Agreement may be executed in one or more counterparts (delivery of which may be by facsimile or via e-mail as a portable document format (.pdf) or other electronic format), each of which will be deemed to be an original, and it will not be necessary in making proof of this Agreement or the terms of this Agreement to produce or account for more than one such counterpart. One such counterpart signed by the party against whom enforceability is sought shall be sufficient to evidence the existence of this Agreement.