All notices, requests, demands and other communications hereunder shall be in writing and shall be deemed to have been duly given: (a) upon delivery if delivered by hand to the Party to whom said notice or other communication shall have been directed; (b) one (1) business day after delivery to a commercial overnight courier for next business day delivery; or (c) if mailed by certified or registered U.S. mail with postage prepaid, on the third (3rd) business day after the date on which it is so mailed at the address set forth on the signature page hereto or to such other address(es) as may have been furnished to/by Indemnitee to/by Angelus.