Optional Purchases by the Corporation Subject to compliance with applicable securities legislation and approval of applicable regulatory authorities, if any, the Corporation may from time to time purchase by private contract or otherwise any of the Warrants. Any such purchase shall be made at the lowest price or prices at which, in the opinion of the directors of the Corporation, such Warrants are then obtainable, plus reasonable costs of purchase, and may be made in such manner, from such persons and on such other terms as the Corporation, in its sole discretion, may determine. In the case of Warrant Certificates, Warrant Certificates representing the Warrants purchased pursuant to this Section 5.1 shall forthwith be delivered to and cancelled by the Warrant Agent and reflected accordingly on the register of Warrants. In the case of Uncertificated Warrants, the Warrants purchased pursuant to this Section 5.1 shall be reflected accordingly on the register of Warrants and in accordance with procedures prescribed by the Depository under the book entry registration system. No Warrants shall be issued in replacement thereof.
Execution of Debentures The Debentures shall be signed in the name and on behalf of the Company by the manual or facsimile signature of its Chairman of the Board of Directors, Chief Executive Officer, Vice Chairman, President, one of its Managing Directors or one of its Executive Vice Presidents, Senior Vice Presidents or Vice Presidents. Only such Debentures as shall bear thereon a certificate of authentication substantially in the form herein before recited, executed by the Trustee or the Authenticating Agent by the manual signature of an authorized signer, shall be entitled to the benefits of this Indenture or be valid or obligatory for any purpose. Such certificate by the Trustee or the Authenticating Agent upon any Debenture executed by the Company shall be conclusive evidence that the Debenture so authenticated has been duly authenticated and delivered hereunder and that the holder is entitled to the benefits of this Indenture. In case any officer of the Company who shall have signed any of the Debentures shall cease to be such officer before the Debentures so signed shall have been authenticated and delivered by the Trustee or the Authenticating Agent, or disposed of by the Company, such Debentures nevertheless may be authenticated and delivered or disposed of as though the Person who signed such Debentures had not ceased to be such officer of the Company; and any Debenture may be signed on behalf of the Company by such Persons as, at the actual date of the execution of such Debenture, shall be the proper officers of the Company, although at the date of the execution of this Indenture any such person was not such an officer. Every Debenture shall be dated the date of its authentication.