Filed Pursuant to Rule 433 Registration No. 333-105400 Province of Ontario 4.75% Bonds due January 19, 2016 ---------------------------------------------------- Underwriting Agreement dated as of January 10, 2006 Issuer: Province of Ontario Underwriters: <Table> <Caption> PRINCIPAL AMOUNT UNDERWRITER OF SECURITIES TO BE PURCHASE ----------- ---------------- The Toronto-Dominion Bank................ US$260,000,000 Barclays Capital Inc..................... 260,000,000 Merrill Lynch, Pierce, Fenner & Smith Incorporated................. 260,000,000 CIBC World Markets Corp.................. 50,000,000 RBC Capital Markets Corporation.......... 50,000,000 ABN AMRO Bank N.V........................ 15,000,000 BNP PARIBAS Securities Corp.............. 15,000,000 Citigroup Global Markets Inc............. 15,000,000 Credit Suisse First Boston LLC........... 15,000,000 Deutsche Bank Securities Inc............. 15,000,000 HSBC Securities (USA) Inc................ 15,000,000 National Bank Financial Inc.............. 15,000,000 Scotia Capital (USA) Inc................. 15,000,000 </Table> Fiscal Agency Agreement: Fiscal Agency Agreement dated as of January 18, 2006 between the Province of Ontario and The Bank of New York, as Fiscal Agent Ratings of the Province of Ontario: Moody's Aa2; S&P: AA; Composite: AA Title, Purchase Price and Description of Securities Title: 4.75% Bonds due January 19, 2016 Aggregate principal amount: U.S.$1,000,000,000 Denomination: U.S.$5,000 and integral multiples of U.S.$1,000 for amounts in excess of U.S.$5,000 Price to public: 99.371% plus accrued interest from January 18, 2006 if settlement occurs after that date Purchase price (include accrued interest or amortization, if any): 99.171% plus accrued interest from January 18, 2006 if settlement occurs after that date Proceeds $991,576,400 after deducting the underwriting discount and our estimated expenses Underwriting discount: 0.20% Maturity: January 19, 2016 Interest rate: 4.75% Yield 4.83% III-1 Interest payment dates: Interest for the initial interest period from and including January 18, 2006 to, but excluding, July 19, 2006 will be payable on July 19, 2006. Thereafter, interest will be payable in two equal semi-annual installments in arrears on January 19 and July 19. Redemption provisions: The Securities will not be redeemable prior to maturity unless specified events occur involving Canadian taxation Withholding Taxes: Principal of and interest on the Securities will be payable without withholding or deduction for Canadian withholding taxes to the extent described in the Preliminary Final Prospectus and Final Prospectus Business Days: London, New York, Toronto Sinking fund provisions: None Other provisions: None The Issuer has filed a registration statement (including a prospectus) with the SEC for the offering to which this communication relates. Before you invest, you should read the prospectus in that registration statement and other documents the Issuer has filed with the SEC for more complete information about the Issuer and this offering. You may get these documents for free by visiting EDGAR on the SEC Web site at www.sec.gov. Alternatively, the Issuer, any underwriter or any dealer participating in the offering will arrange to send you the prospectus if you request it by calling TD Securities toll-free at 1-800-263-5292, Barclays Capital toll-free at 1-888-227-2275 (ext. 2663), or Merrill Lynch & Co. toll-free at 1-800-248-3580. III-2