All notices, demands, requests, consents or other communications required or permitted to be given or made under this Agreement must be in writing and signed by the party giving the same and are deemed given or made (a) two (2) days after being mailed by certified or registered mail, postage prepaid, (b) when transmitted via facsimile, graphic scanning or other telegraphic communication, (c) when hand delivered, or (d) one (1) day after being sent by overnight delivery service, in each case to the intended recipient as indicated on Exhibit A to this Agreement or to any other address of which prior written notice has been given.