Notice, requests, demands, and other communications relating to this Agreement and the transactions contemplated herein shall be in writing and shall be deemed to have been duly given if and when: (a) delivered personally, on the date of such delivery; (b) delivered by electronic transmission, on the date of such delivery; or (c) mailed by registered or certified mail, postage prepaid, return receipt requested, on the third day after the posting thereof, to the address set forth in the signature pages to this Agreement (as such address may be updated by written notices to the other Parties to this Agreement) .