All notices, consents, approvals, elections and other communications (collectively “ Notices ”) under this Agreement shall be in writing and shall be deemed to have been duly given if mailed by United States registered or certified mail, with return receipt requested, postage prepaid, or by United States Express Mail or reputable overnight courier service to the parties at the addresses set forth in the Defined Terms, or in the case of Counterparty, at the address set forth below its signature (or at such other addresses as shall be given in writing by any party to the others pursuant to this Section) and shall be deemed complete upon receipt or refusal to accept delivery as indicated in the return receipt or in the receipt of such Express Mail or courier service.