This Agreement may be executed in two or more counterparts, each of which shall for all purposes be deemed to be an original but all of which, taken together, shall constitute one and the same Agreement. Only one such counterpart signed by the party against whom enforceability is sought needs to be produced to evidence the existence of this Agreement. This Agreement may be executed and delivered by facsimile or email transmission of a file in “ .pdf ” or similar format and upon such delivery, each signature shall be deemed to have the same effect as if the original signature had been delivered to the other party.