Hudbay Minerals Inc. ("Hudbay" or the "Company") ((TSX, NYSE:HBM) today announced the pricing of an offering of US$52 million in aggregate principal amount of 4.50% Arizona Industrial Development Authority Solid Waste Disposal Revenue Bonds (Copper World LLC Project) Series 2026A (the "Copper World Bonds"). The Copper World Bonds will be issued by the Arizona Industrial Development Authority (the "Issuer") and will have an initial mandatory tender date of July 2, 2036. The Issuer will lend the gross proceeds of US$52 million to Copper World LLC ("Copper World") to finance, reimburse and refinance, as applicable, certain eligible expenditures at the Copper World project in Pima County, Arizona, and to finance capitalized interest, if any, and certain other eligible costs associated with the Copper World Bonds. Pursuant to the terms of the loan agreement (the "Loan Agreement"), Copper World will be required to make payments at such times and in such amounts as will provide for the payment of principal and purchase price of, premium, if any, and interest on the Copper World Bonds as the same become due and payable. The obligations of Copper World under the Loan Agreement and with respect to the Copper World Bonds will be guaranteed by Hudbay and certain of its subsidiaries, including all of Hudbay's existing and future subsidiaries that become a guarantor, borrower or issuer in respect of Hudbay's senior notes.

The Copper World Bonds transaction is expected to close on June 24, 2026, subject to customary closing conditions.