All notices, requests, demands and other communications required or permitted under this Agreement shall be in writing (including email or other written electronic communication) and shall be deemed to have been duly given and made upon being delivered to the recipient party by email (with confirmation of receipt and opening), recognized courier service, fax transmission (with confirmation of receipt) for those parties having a fax number listed below or by registered or certified mail (postage prepaid, return receipt requested), and addressed to the applicable address set forth below or such other address as may be designated in writing hereafter by the recipient party in accordance with this Section 8.1 .