Hudbay Completes Offering of Senior Unsecured Notes

HudBay Minerals Inc. (“Hudbay”) (TSX:HBM) (NYSE:HBM) completed its previously announced of-fering of US$500 million aggregate principal amount of 9.50 per cent senior unsecured notes due 2020. Hudbay plans to use the net proceeds from the offering for general cor-porate purposes and the development of its Lalor and Reed projects in Manitoba and its Constancia project in Peru. The syndicate of underwriters was led by BofA Merrill Lynch, Pierce, Fenner & Smith Incorporated and included BMO Capital Markets Corp., CIBC World Markets Corp., Cormark Securities Inc., Desjardins Securities Inc., Dundee Securities Inc., GMP Securities L.P., ING Financial Markets LLC, Paradigm Capital, Inc., Raymond James Ltd., RBC Capital Markets LLC, Scotia Capital (USA) Inc., Stifel Nicolaus Canada Inc., and TD Securities (USA) LLC.

Hudbay was represented in-house by Patrick Donnelly, Maria Virginia Anzola and Mark Haber, and in the US by Sullivan & Cromwell LLP with a team that included John Estes, Werner Ahlers, Alexandria Yestrumskas and Keerthika Subramonian (corpo-rate/securities); and in Canada by Goodmans LLP with a team that included Jona-than Lampe, Kari MacKay, Chris Sunstrum, and Victoria Petherbridge (corporate/securities); Celia Rhea (finance) and Alan Bowman and Mark Biderman (tax). Jeff Kowall of Thompson Dorfman Sweatman LLP assisted HudBay in Manitoba.

The underwriters were represented in the US by Shearman & Sterling LLP with a team that included Michael Benjamin, Thaddeus Pitney, Quentin Wiest and Yui Le; and in Canada by Stikeman Elliott LLP with a team that included Gordon Cameron, Marc-André Wolfe and Viviana Beltrametti Walker.

Lawyer(s)

Victoria Petherbridge Jeffrey A. Kowall Alan Bowman Celia K. Rhea Kari MacKay Jonathan Lampe Gordon N. Cameron Chris Sunstrum Mark Biderman

Firm(s)

Sullivan & Cromwell LLP Goodmans LLP Thompson Dorfman Sweatman LLP Shearman & Sterling LLP Stikeman Elliott LLP