This Agreement and the Subscription Agreement contain the entire understanding of the parties hereto with respect to the subject matter hereof and thereof and supersedes all previous and contemporaneous verbal and written agreements, representations and warrantees with respect to such subject matter. This Agreement (or any provision or term hereof) may be released, waived, changed or supplemented only by a written agreement signed by an officer or other authorized representative of the party against whom enforcement of any release, waiver, change or supplement is sought.