Any notice, demand or request required hereunder shall be given in writing (at the addresses set forth in Exhibit A ) by any of the following means: (i) personal service; (ii) electronic communication, whether by telex, telegram or telecopying or other form of electronic communication; (iii) overnight courier; or (iv) registered or certified, first class U.S. mail, return receipt requested, or to such other addresses as Lender or Borrower may specify from time to time in writing.