Augusta Provides New DEIS Timeline for Rosemont Copper Project
Vancouver, B.C, June 1, 2010 – Augusta Resource Corporation (TSX/NYSE Amex: AZC ) (“Augusta”
or “the Company”) announces that its wholly owned subsidiary, Rosemont Copper Company, has signed an
amendment to the Memorandum of Understanding with the Coronado National Forest which anticipates the
Draft Environmental Impact Statement (DEIS) for the Rosemont Copper project will be released and public
comment will commence in the fourth quarter of 2010. Public hearings are anticipated to occur in the first quarter
This follows an April 30, 2010 statement from the Coronado National Forest that the DEIS would be delayed in
order to complete an additional plant study and additional groundwater modeling of development plan
This adjustment to the DEIS schedule is necessary to allow the Forest Interdisciplinary Team and its third party
contractors to produce a complete and comprehensive evaluation.
Augusta is a base metals company focused on advancing the Rosemont copper deposit near Tucson, Arizona.
Rosemont hosts a large copper/molybdenum reserve that may account for about 10% of US copper output once
in production in 2012 (for details refer to www.augustaresource.com ). The exceptional experience and strength
of Augusta’s management team, combined with the developed infrastructure and robust economics of the
Rosemont project, will propel Augusta to become a solid mid-tier copper producer. The Company is traded on
the Toronto Stock Exchange and the NYSE Amex under the symbol AZC, and on the Frankfurt Stock
Exchange under the symbol A5R.
For additional information please visit www.augustaresource.com or contact: Meghan Brown, Investor Relations
Manager Tel: (604) 638 2002 Email: firstname.lastname@example.org
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