Any notice, request, demand or other communication required or permitted herein will be deemed to be properly given when personally served in writing or when deposited in the United States mail, postage prepaid, addressed to Executive at the address appearing at the end of this Agreement and to the Company with attention to the Chair of the Board of Directors of Orion (or the Lead Independent Director if Executive is then serving as the Chair) and the General Counsel of Orion. Either party may change its address by written notice in accordance with this paragraph.