This Agreement may be executed in one or more counterparts, all of which shall be considered one and the same agreement and shall become effective when one or more counterparts have been signed by each of the Parties and delivered to the other Parties, it being understood that all Parties need not sign the same counterpart. Delivery of an executed signature page to this Agreement by facsimile transmission or electronic mail shall be as effective as delivery of a manually signed counterpart of this Agreement.