All notices required or permitted hereunder shall be in writing and deemed effectively given upon personal delivery or five calendar days after deposit in the United States Post Office, by registered or certified mail, postage prepaid, addressed to the other party hereto at, for the Company, its primary business address (attention Director of Human Resources) and, for the Participant, at the Participant’s home address as reflected in the records of the Company, or at such other address or addresses as either party shall designate to the other in accordance with this Section 10(f).