本协议中的任何一方如果把关于第十一条的通知书以挂号信形式，或以其他方式寄交给附件B中所列明的另一方的办公地，并取得对方回执或认可时，则该通知书被视为有效送达。以挂号信方式寄送时，该项通知应在收到之日起被认为已提交对方。

11.4 This Main Agreement shall continue in force until terminated by either Party giving sixty days prior notice to the other Party.

本协议生效后，任何一方要求终止本协议，在对方收到其通知后的第六十天起本协议即行失效。

11.5 Termination by either Party of all or any part of the services to be furnished at a specific location requires sixty days prior notice to the other Party.  In the event of part termination of services, consideration shall be given to an adjustment of charges.

任何一方要求终止在某一特别地点提供的全部或部分服务，应提前六十天提出终止通知。部分代理服务项目终止后，应同时考虑收费标准。

11.6 Any Annex(es)B to this Agreement exceeding a defined period of validity, shall continue in effect until terminated by either party providing sixty days prior notice to the other Party.