Section 9.1 Subordination. Company and Customer agree that this Lease, automatically and without the necessity of any further documentation, is and shall be subject and subordinate at all times to all mortgages (in any amounts and all advances thereon) which may now or hereafter affect the real property of which the Premises form a part, and to all renewals, modifications, consolidations, participations, replacements and extensions thereof. Customer agrees to attorn to any mortgagee who shall succeed to Company's interest in this Lease upon request of such mortgagee. In confirmation of the foregoing, Customer shall promptly upon request therefor by Company, and without charge therefor, execute such certifications and/or other documents as Company may require.