Subject to the terms of this Escrow Agreement, (a) the Shareholders Escrow Share shall remain held in escrow by the Escrow Agent for a period of twelve (12) months following the date hereof (the “ Indemnification Escrow Period ”) and (b) the Milestone Escrow Shares shall remain held in escrow by the Escrow Agent until the earlier of (i) the completion of the Milestone Achievement as contemplated by Exhibit C hereof, or (ii) 90 days after the expiration date of for the Milestone Achievement, as set forth on Exhibit C hereof (the “ Milestone Escrow Period ”, together with the Indemnification Escrow Period, collectively, the “ Escrow Period ”); provided that part or all of the Escrowed Consideration may be released to ISS, from time to time, prior to such time in connection with the final adjudication or resolution of a claim pursuant to Section 3 herein or as provided further in Exhibit C on achievement of Milestone Achievement. Notwithstanding the foregoing and subject to the provisions for an interim release set forth in Section 4.3(a), prior to the Final Release (as defined below), the Escrowed Consideration shall be held by the Escrow Agent and the Escrow Agent shall continue to perform its duties under this Escrow Agreement until (i) the final adjudication or resolution of all the pending claims, and (ii) the balance, if any, of the Escrowed Consideration is released.