Any notice to be given to the Company pursuant to the provisions of the Plan or this Agreement shall be given by personal delivery, by telecopier or similar facsimile means, by registered or certified first-class U.S. mail, return receipt requested and postage prepaid, or by express courier or recognized overnight delivery service, charges prepaid. If directed to the Company, any such notice shall be addressed to the Company’s principal executive office, to the Company’s Secretary, or to such other address, person or telecopier number as the Company may designate from time to time. If directed to the Optionee, any such notice or communication shall be addressed to him or her at the address given beneath his or her signature on this Agreement, or at such other most recent address of the Optionee on file with the Company. Any such notice shall be deemed given: (a) when delivered personally to the recipient; (b) when received, if sent by telecopy or similar facsimile means (confirmation of such receipt by confirmed facsimile transmission being deemed receipt of communications sent by telecopy or other facsimile means); (c) on the date five days after the date mailed, if sent by registered or certified first-class U.S. mail, return receipt requested and postage prepaid; and (d) when delivered (or upon the date of attempted delivery where delivery is refused), if sent by express courier or recognized overnight delivery service, charges prepaid. Whenever the giving of notice is required pursuant to the provisions of the Plan or this Agreement, the giving of such notice may be waived by the party entitled to receive such notice.