The Administrator has the right to amend, alter, suspend, discontinue or cancel the Option, prospectively or retroactively; provided, that, no such amendment shall adversely affect the Participant's material rights under this Agreement without the Participant's consent; provided, further, that, to the extent required under the rules of any securities exchange or market system on which the Company’s common stock is listed, amendments to this Agreement shall be subject to approval by the Company’s stockholders. Nothing in this Section 15 shall limit the Administrator’s authority to take any action permitted pursuant to the Plan.