Issuance of Warrants and Execution and Delivery of Warrant Certificates (a) All Warrant Certificates shall be in registered form, shall contain such appropriate insertions, omissions, substitutions and other variations as are required or permitted by this Agreement and may have such letters, numbers or other marks of identification or designation and such legends or endorsements placed thereon as may, consistently herewith, be determined by a duly authorized representative of the Company (each, an "Authorized Person"), as evidenced conclusively by the execution of such Warrant Certificates and as are not inconsistent with the provisions of this Agreement, or as may be required to comply with any law or with any rule or regulation. (b) The Warrant Agent shall, upon receipt of the Warrant Certificates duly executed on behalf of the Company, countersign one or more global warrant certificates (the "Global Warrant Certificates") evidencing the Warrants and shall, subject to paragraph (a) above, deliver such Global Warrant Certificates to or upon the written order of the Company. Subsequent to such original issuance of the Warrant Certificates, the Warrant Agent shall countersign Warrant Certificates only if such Warrant Certificates are issued in exchange or substitution for one or more previously countersigned Warrant Certificates, as the case may be, or, in connection with their transfer, as hereinafter provided or as provided in Section 6(a) or Section 18, but subject to the provisions of Section 7. A Global Warrant Certificate shall be, and shall remain, subject to the provisions of this Agreement until such time as all of the Warrants evidenced thereby shall have been duly exercised or shall have expired or been canceled in accordance with the terms thereof. No Warrant Certificate shall be valid for any purpose, and no Warrant evidenced thereby shall be exercisable, until such Warrant Certificate has been countersigned by the manual signature of the Warrant Agent. Such signature by the Warrant Agent upon any Warrant Certificate executed by the Company shall be conclusive evidence that such Warrant Certificate so countersigned has been duly issued hereunder. (c) Each Warrant Certificate shall be signed on behalf of the Company by an Authorized Person. Such signature may be the manual or facsimile signature of such persons and may be imprinted or otherwise reproduced on the Warrant Certificates. In case any Authorized Person who shall have signed any of the Warrant Certificates either manually or by facsimile signature shall cease to be an Authorized Person, before the Warrant Certificates shall have been countersigned and delivered by the Warrant Agent, such Warrant Certificates may be countersigned and delivered notwithstanding that a person who signed such Warrant Certificate ceased to be such an Authorized Person, and any Warrant Certificate may be signed on behalf of the Company by such persons as, at the actual date of the execution of such Warrant Certificate, shall be Authorized Persons, although at the date of the execution of this Agreement any such person was not such an Authorized Person.