Any notice required or permitted to be given under this Agreement will, to be effective hereunder, be given to the Corporation, in the case of notices given by the Executive, and will, to be effective hereunder, be given by the Corporation, in the case of notices given to the Executive. Any such notice will be deemed properly given if in writing and if mailed by registered or certified mail, postage prepaid with return receipt requested, to the last known residence address of the Executive, in the case of notices to the Executive, and to the principal office of the Corporation, in the case of notice to the Corporation.