All notices, requests, demands, waivers, and other communications to a party required or permitted under this Agreement shall be in writing and shall be delivered personally or sent by telecopy, or internationally recognized delivery service providing for guaranteed overnight delivery, addressed to such party, at its address first written above (or such other address as is provided by such party to the other party from time to time). Each party shall be responsible for supplying the other with any changes in the addresses or telecopy numbers for notices hereunder. All notices, requests, demands, waivers, and communications shall be deemed to have been given on the date of personal delivery or on the first business day after overnight delivery (or the second business day after international overnight delivery) was guaranteed by an internationally recognized delivery service, except that any change of address shall be effective only upon actual receipt. Written notice given by telecopy shall be deemed given when electronic or telephonic confirmation is received by the sending party.