Release of Development Security. The Development Security shall remain in force and effect initially for a period of 27 (twenty seven) months as from the date of issue, and shall be extended from time to time, at least 15 (fifteen) days prior to the expiry, to be valid up to 3 (three) months after the Commercial Operation Date. Upon expiry of 3 (three) months from the Commercial Operation Date, CEB shall release the Development Security forthwith, provided, however, that the Development Security shall not be released if Seller is in breach of this Agreement.