Fortis Inc. and UNS Energy Corporation announced today the issuance of the final written approval by the Arizona Corporation Commission of the Corporation's agreement to acquire UNS Energy. As a result, all conditions precedent to completing the Acquisition have been fulfilled other than those which by their nature cannot be satisfied until the closing date, which is expected to occur upon completion of the required documentation. Fortis will issue shortly a final instalment notice notifying holders of its 4% convertible unsecured subordinated debentures represented by instalment receipts of the date on which payment of the final instalment is due, which date shall be not less than 15 days nor more than 90 days thereafter.