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ANNUAL INFORMATION FORM(AIF)

of

AUGUSTA RESOURCE CORPORATION(the Company or
Augusta)Suite 400, 837 West Hastings Street Vancouver, British
Columbia V6C 3N6

Telephone: 604-687-1717
Facsimile: 604-687-1715 Website: www.augustaresource.com E-mail:
info@augustaresource.com

For the Year Ended December 31, 2010 Dated: March 29,
2011

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TABLE OF CONTENTS

Page

|ITEM
      1: PRELIMINARY NOTES                                          | 1                                              
|------------------------------------------------------------------------ | -----------------------------------------------
|                                                                         | Effective
      Date of Information            
|                                                                         | Currency                                       
|                                                                         | Note
      Regarding Forward Looking Statements
|                                                                         | National
      Instrument 43-101 Definitions   
|                                                                         |                                                
|ITEM
      2: CORPORATE STRUCTURE                                        | 3                                              
|                                                                         | Incorporation
      or Organization of Company 
|                                                                         | Subsidiaries                                   
|                                                                         |                                                
|ITEM
      3: GENERAL DEVELOPMENT OF THE BUSINESS                        | 4                                              
|                                                                         | Three
      Year History                       
|                                                                         | Augustas
    Objectives for 2011              
|                                                                         |                                                
|ITEM
      4: NARRATIVE DESCRIPTION OF THE BUSINESS                      | 7                                              
|                                                                         | Risk
      Factors                             
|                                                                         | Material
      Mineral Property                
|                                                                         |                                                
|ITEM
      5: DIVIDENDS                                                  | 31                                             
|ITEM
      6: DESCRIPTION OF CAPITAL STRUCTURE                           | 31                                             
|ITEM
      7: MARKET FOR SECURITIES                                      | 31                                             
|ITEM
      8: DIRECTORS AND OFFICERS                                     | 33                                             
|ITEM
      9: INTEREST OF MANAGEMENT AND OTHERS IN MATERIAL TRANSACTIONS | 37                                             
|ITEM
      10: TRANSFER AGENTS AND REGISTRARS                            | 38                                             
|ITEM
      11: MATERIAL CONTRACTS                                        | 38                                             
|ITEM
      12: INTEREST OF EXPERTS                                       | 38                                             
|ITEM
      13: AUDIT COMMITTEE INFORMATION                               | 39                                             
|ITEM
      14: ADDITIONAL INFORMATION                                    | 40                                             

-i-

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ITEM 1: PRELIMINARY NOTES

Effective Date of Information

This AIF is dated March 29, 2011, and unless otherwise
indicated, the information contained herein is current as of such date, other
than certain financial information which is current as of December 31, 2010
being the date of the Companys most recently audited financial year end.

All financial information in this AIF is prepared in accordance
with accounting principles generally accepted in Canada (Canadian GAAP).

Currency

All dollar amounts are expressed in United States dollars
unless otherwise indicated.

Note Regarding Forward Looking Statements

This AIF contain forward-looking statements within the meaning
of the United States Private Securities Litigation Reform Act of 1995 and
forward-looking information within the meaning of applicable Canadian securities
laws. Such forward-looking statements and forward-looking information include,
but are not limited to statements concerning:

- the Companys plans at the Rosemont Project;
- estimated production; and
- capital and operating and cash flow estimates.

Forward-looking statements or information include statements
regarding the expectations and beliefs of management. Often, but not always,
forward-looking statements and forward-looking information can be identified by
the use of words such as plans, expects, is expected, budget,
scheduled, estimates, forecasts, intends, anticipates, or believes
or the negatives thereof or variations of such words and phrases or statements
that certain actions, events or results may, could, would, might or
will be taken, occur or be achieved. Forward-looking statements or information
include, but are not limited to, statements or information with respect to known
or unknown risks, uncertainties and other factors which may cause the actual
results, performance or achievements of the Company, or industry results, to be
materially different from any future results, performance or achievements
expressed or implied by such forward-looking statements or information.

Forward-looking statements or information are subject to a
variety of risks and uncertainties which could cause actual events or results to
differ from those reflected in the forward-looking statements or information,
including, without limitation, risks and uncertainties relating to: history of
losses, requirements for additional capital, dilution, loss of material
properties, interest rate increases, global economy, no history of production,
speculative nature of exploration activities, periodic interruptions to
exploration, development and mining activities, environmental hazards and
liability, industrial accidents, failure of processing and mining equipment,
labour disputes, supply problems, commodity price fluctuations, uncertainty of
production and cost estimates, the interpretation of drill results and the
estimation of mineral resources and reserves, legal and regulatory proceedings
and community actions, title and tenure matters, regulatory restrictions,
permitting and licensing, volatility of the market price of the Companys common
shares, insurance, competition, hedging activities, currency fluctuations, loss
of key employees, as well as those factors discussed in the section entitled
Risk Factors in this AIF. Should one or more of these risks and uncertainties
materialize, or should underlying assumptions prove incorrect, actual results
may vary materially from those described in forward-looking statements or
information. Accordingly, readers are advised not to place undue reliance on
forward-looking statements or information. The Company disclaims any intent or
obligation to update forward-looking statements or information except as
required by law, and you are referred to the full discussion of the Companys
business contained in the Companys reports filed with the securities regulatory authorities in Canada and the
United States. Readers are also advised to consider such forward-looking
statements or information, which speak only as of the date the statements were
made, while considering the risks set forth below under the section Risk
Factors.

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National Instrument 43-101 Definitions

Canadian reporting requirements for disclosure of mineral
properties are governed by National Instrument 43-101 (NI 43-101). The
definitions given in NI 43-101 are adopted from those given by the Canadian
Institute of Mining Metallurgy and Petroleum.

|Mineral Reserve            | The term mineral reserve refers to the economically
      mineable part of a measured or indicated mineral resource demonstrated by
      at least a preliminary feasibility study. The study must include adequate
      information on mining, processing, metallurgical, economic, and other
      relevant factors that demonstrate, at the time of reporting, that economic
      extraction can be justified. A mineral reserve includes diluting materials
    and allowances for losses that might occur when the material is mined.                                                                                                                                                                                                                          
|-------------------------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
|                           |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         
|Mineral Resource           | The term mineral resource refers to a concentration or
      occurrence of diamonds, natural, solid, inorganic or fossilized organic
      material including base and precious metals, coal and industrial minerals
      in or on the Earths crust in such form and quantity and of such a grade
      or quality that it has reasonable prospects for economic extraction. The
      location, quantity, grade, geological characteristics and continuity of a
      mineral resource are known, estimated or interpreted from
      specific  geological evidence and knowledge.                                                                                                                                                                                 
|                          
|                           |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         
|Measured Mineral Resource  | The term measured mineral resource refers to that part
      of a mineral resource for which quantity, grade or quality, densities,
      shape and physical characteristics are so well established that they can
      be estimated with confidence sufficient to allow the appropriate
      application of technical and economic parameters, to support production
      planning and evaluation of the economic viability of the deposit. The
      estimate is based on detailed and reliable exploration, sampling and
      testing information gathered through appropriate techniques from locations
      such as outcrops, trenches, pits, workings and drill holes that are spaced
      closely enough to confirm both geological and grade continuity.
|                           |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         
|Indicated Mineral Resource | The term indicated mineral resource refers to that part
      of a mineral resource for which quantity, grade or quality, densities,
      shape and physical characteristics can be estimated with a level of
      confidence sufficient to allow the appropriate application of technical
      and economic parameters, to support mine planning and evaluation of the
      economic viability of the deposit. The estimate is based on detailed and
      reliable exploration and testing information gathered through appropriate
      techniques from locations such as outcrops, trenches, pits, workings and
      drill holes that are spaced closely enough for geological and grade
      continuity to be reasonably assumed.                         

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|Inferred Mineral Resource | The term inferred mineral resource refers to that part
      of a mineral resource for which quantity and grade or quality can be
      estimated on the basis of geological evidence and limited sampling and
      reasonably assumed, but not verified, geological and grade continuity. The
      estimate is based on limited information and sampling gathered through
      appropriate techniques from locations such as outcrops, trenches, pits,
      workings and drill holes.
|------------------------- | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
|                          |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             
|Qualified Person          | The term qualified person refers to an individual who
      is an engineer or geoscientist with at least five years of experience in
      mineral exploration, mine development, production activities and project
      assessment, or any combination thereof, including experience relevant to
      the subject matter of the project or report and is a member in good
      standing of a self-regulating organization.                                                            

|ITEM 2: CORPORATE STRUCTURE                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         
|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    
|Incorporation or Organization of Company                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    
|The Company was incorporated on January 14, 1937 by
      Articles of Incorporation Letters Patent pursuant to the Ontario
      Business Corporations Actunder the name Hol-Lac Gold Mines, Limited.
      In 1985, after a period of dormancy, the Company began actively pursuing
      interests in mining properties. On July 3, 1997, the Company changed its
      name to Augusta Resource Corporation and on June 28, 1999 the Company was
      continued under section 187 of the Canada Business Corporations
      Act.
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    
|The Companys registered office is at Suite 2900  Five
      Bentall Centre, 550 Burrard Street, Vancouver, BC, V6C 0A3. The Companys
      head office is located at Suite 400  837 West Hastings Street, Vancouver,
      BC, V6C 3N6. The Company also has an executive office located at Suite
      1040, 4500 Cherry Creek Drive South, Glendale, Colorado, 80246. In
      addition, the Companys wholly owned subsidiary, Rosemont Copper Company,
      has an office in Tucson, Arizona.                              
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    
|The Company is a reporting issuer in British Columbia,
      Alberta, Saskatchewan, Manitoba, Ontario, New Brunswick and Newfoundland
      and Labrador and as such is required to make filings on a continuous basis
      thereunder. Such material information is available for inspection on the
      SEDAR website at www.sedar.com.                                                                                                                                                                                         
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    
|The Companys fiscal year end is December 31 and its
      common shares trade in Canada on the Toronto Stock Exchange (TSX) and in
      the United States (US) on the NYSE Amex Equities (NYSE Amex) under the
      symbol AZC. The Company common shares also trade on the Frankfurt Stock
      Exchange (FWB) under the symbol A5R.                                                                                                                                                                               
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    
|The Company has an unlimited number of common shares
      without par value authorized. At the date of this AIF, there were
      141,928,493 shares issued and outstanding.                                                                                                                                                                                                                                                                                                                                                       
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    
|Subsidiaries                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    
|Effective October 1, 2008, the Company re-organized its
      ownership of Rosemont Copper Company and the Rosemont copper project (the
      Reorganization) by interjecting US and Canadian subsidiaries. The
      Rosemont Copper Company remains wholly owned by Augusta, albeit indirectly
      through such corporate chain (the Rosemont Corporate Chain).                                                                                                                                                             

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The Company currently has four material subsidiaries, being
Augusta Resource (Canada) Corporation (incorporated in British Columbia),
Augusta Resource (US) Corporation (organized under the laws of Nevada), Augusta
Resource (US) Holding Corporation (organized under the laws of Nevada) and
Rosemont Copper Company (organized under the laws of Arizona).

ITEM 3: GENERAL DEVELOPMENT OF THE BUSINESS

Three-Year History

The Company is engaged in the acquisition, exploration and
development of natural mineral resource properties. Currently the Companys only
material property is the Rosemont copper property located in Pima County,
Arizona (the Rosemont Property). Under an option agreement dated April 18,
2005 the Company secured the right to purchase a 100% working interest in the
Rosemont Property, subject to a 3% NSR. On June 1, 2005, the Company made the
first option payment of $6.7 million and on March 31, 2006 the Company completed
the remaining payments totalling $13.7 million, after a reduction for early
payment provisions and thereby acquired a 100% working interest in the property
subject to the 3% NSR.

In April 2007, the Company filed the 2007 Mineral Resource
Update for the Rosemont copper project (Rosemont Project) which reported 5.7
billion pounds (lbs) of copper (Cu) and 157 million lbs of molybdenum (Mo)
in measured and indicated resources, and 1.5 billion lbs of Cu and 23 million
lbs of Mo in inferred resources. The estimate also included a new silver (Ag)
resource for the deposit, which quantified approximately 66.5 million ounces
(oz) of Ag in measured and indicated resources and 9.3 million oz of Ag in
inferred resources. The results of this NI 43-101 compliant report were
incorporated in the Rosemont Copper Project Feasibility Study completed in
August 2007 (the 2007 Feasibility Study).

In June 2007, the Company completed a private placement of
10,719,827 common shares at Cdn$3.50 per share for total proceeds of
Cdn$37,519,394. The placement was subscribed for by Sumitomo Corporation and
Sumitomo Corporation of America (Sumitomo) as to 7,600,000 common shares and
two funds managed by US private investment firm Harbinger Capital Partners
(Harbinger) as to 3,119,827 common shares resulting in Sumitomo holding 8.7%
interest in Augusta and Harbinger holding 19.9% (from 18.6%) in Augusta.
Proceeds from the placement were used towards the advancement of the Rosemont
Project and for general working capital purposes.

In July 2007, the Company formally filed the Mine Plan of
Operations (MPO) with the United States Forest Service (US Forest Service).
The detailed plan for Augustas Rosemont Project includes progressive design,
conservation and sustainability initiatives. Once approved, the final Rosemont
MPO becomes a binding document that assures the MPOs commitments, including
reclamation and closure funding guarantees.

On August 28, 2007, the Company filed the 2007 Feasibility
Study announcing that the Board of Directors had accepted the results of the
2007 Feasibility Study for the Rosemont Project as a low cost open pit mine and
approved the development of the project.

During the latter part of 2007 as the Companys efforts became
focused on advancing the Rosemont Project (details provided below) the Company
entered into a definitive agreement with Ely Gold and Minerals Inc. (Ely) with
respect to the sale of the Companys interest in the Mount Hamilton, Shell and
Monte Cristo properties with the final closing of the agreement occurring in
late February 2008. The consideration for the sale was $6,625,000 in cash, and
warrants exercisable to purchase up to 3,000,000 shares of Ely for eighteen
months after closing at the price of Cdn$0.50 per share. These warrants expired
unexercised. The cash portion of the purchase price will be payable in
instalments over five years, with $1,625,000 payable on closing and an
additional $1,000,000 payable each 12 months thereafter. On February 25, 2009,
the Company received the first instalment payment of $1,000,000. On November 16,
2009 the Company agreed to amend and extend the terms of payment of the remaining
$4,000,000 owing for an additional two years ending in June 2015. As
consideration for the extension, Ely issued to the Company 2,000,000 warrants,
each exercisable for one common share at Cdn$0.25 per common share until May 16,
2011. The shares of the subsidiaries are pledged to the Company as its sole
recourse for non-payment of any portion of the purchase price.

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As the Company was advancing its projects through the
exploration and development process additional technical personnel were hired in
Colorado. Following the development decision by the Board of Directors, the
Company hired additional key employees in Tucson. With the increase in
activities the Company also hired additional staff in Vancouver.

During the remainder of 2007 and to mid-2008 the Company
advanced certain aspects of the project including the ordering of long lead time
equipment including a SAG mill, two ball mills, three gearless mill drives, a
gyratory crusher and three electric mining shovels.

In April 2008, the Company announced the award of a $56 million
engineering, procurement and construction management (EPCM) contract to M3 for
the development and construction of the Rosemont copper mine which can be
cancelled without penalty.

Application for the operation permits were initiated after
submittal of the MPO and in early 2008 the 20 year ground water withdrawal
permit was approved and issued by the Department of Water Resources.

On June 17, 2008, the Company announced that its wholly owned
subsidiary Rosemont Copper Company had entered into a loan agreement with
Sumitomo (the Sumitomo Loan Agreement). Pursuant to the Sumitomo Loan
Agreement, Sumitomo agreed to provide a $40,000,000 loan facility. The loan
facility plus accrued interest was retired on April 23, 2010 from proceeds of
the Red Kite Explorer Trust (Red Kite) loan (described below).

In October 2008, Augusta completed an updated mineral resource
estimate showing a total (oxide, mixed, sulfide) measured and indicated mineral
resource increase of 386 million pounds of copper equivalent representing a 5%
increase over the previous resource calculation that had been completed in the
first quarter of 2007. The associated inferred resource increased by 14% on the
basis of an additional 268 million pounds of copper equivalent.

In November 2008, Augusta completed an update of Rosemonts
proven and probable mineral reserve estimate, which totaled 616.32 million tons
of ore (including oxide and sulfide). This represented a 14% increase over the
previous reserve estimate set out in the 2007 Feasibility Study.

Results of the mineral resource and mineral reserve update
formed part of the Rosemont Copper Project Updated Feasibility Study completed
in January 2009 (the 2009 Feasibility Study). The 2009 Feasibility Study
re-confirmed Rosemont as an economically robust open pit copper/molybdenum mine
with low development risk. The 2009 Feasibility Study concluded that Rosemont is
technically and economically feasible, there are opportunities for further
optimization, and the project should press forward with development in
anticipation of receiving the necessary permits.

On April 17, 2009, the Company closed a non-brokered private
placement of 3.35 million units at a price of Cdn$1.50 per unit for gross
proceeds of Cdn$5,025,000. Each unit comprises one common share and one
non-transferable share purchase warrant entitling the holder to purchase one
common share at a price of Cdn$2.30 per common share until April 17, 2010.

In July 2009, the Company received written notification from
the Arizona State Mine Inspector that the Rosemont Copper Project Mined Land
Reclamation Plan has been approved. Also in July 2009 the Company announced the signing of an agreement by Rosemont
Copper Company for the purchase of 23, 250-ton Caterpillar 793F haulage trucks
from Empire Southwest LLC a Caterpillar dealership headquartered in Mesa,
Arizona. Contingent with the purchase agreement signed by the parties, Augusta
and Caterpillar Financial Services Corporation, USA have agreed on a term sheet
for a capital lease of the Caterpillar trucks and other related equipment for an
amount up to $100 million.

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- 6 -

In progression with its business and development strategy, the
Company required additional funding and in August 2009, the Company closed a
Cdn$25 million bought deal financing (the 2009 Prospectus Offering), plus a
15% over-allotment option exercised in full, for gross proceeds of
Cdn$28,758,740. The offering was conducted by a syndicate of underwriters led by
Wellington West Capital Markets Inc. and including Cormark Securities Inc., CIBC
World Markets Inc. and TD Securities Inc. for the issuance of 12,380,000 common
shares plus 1,857,000 common shares pursuant to the over-allotment option at a
price of Cdn$2.02 per common share.

In October 2009, Augusta retained Endeavour Financial
International Corporation (Endeavour) as financial advisor with respect to
project financing for the Rosemont Copper Project in Arizona.

On February 11, 2010, Augusta announced it signed a definitive
agreement with Silver Wheaton Corporation (Silver Wheaton) under which the
Company agreed to sell to Silver Wheaton silver and gold ounces equal to 100% of
the payable silver and gold to be produced by the Companys Rosemont Project.
Silver Wheaton will pay Augusta upfront cash payments totalling $230 million and
payments of $3.90 per ounce of silver and $450 per ounce of gold delivered
during the mine life, or the prevailing market prices, if lower. The drawdown of
the cash payments is subject to Augusta receiving the Record of Decision (ROD)
on its Rosemont Project.

On March 12, 2010, Augusta closed Cdn$32.5 million bought deal
financing, conducted by a syndicate of underwriters led by TD Securities Inc.
and Wellington West Capital Markets Inc. for the issuance of 11,820,000 common
shares of the Company at a price of Cdn$2.75 per common share. Proceeds of this
financing have been and will be used to advance the development of the Rosemont
Property and for general working capital purposes.

On April 23, 2010, Augusta completed a $43 million senior
secured loan agreement and a copper concentrate off-take agreement with Red Kite
Explorer Trust (Red Kite). The loan bears interest at LIBOR plus 4.5% and will
mature on the earlier of: (1) two years from the closing date; or (2) the date
of closing of the Rosemont project senior debt financing facility. The Company
also has a one-time option to to declare, by October 22, 2011, an extension to
the maturity date by one year for a fee of 2%. Under the copper concentrate
off-take agreement, once Rosemont commences commercial production, Augusta will
supply Red Kite with 16.125% of Rosemonts copper concentrate production per
year until 483,750 dry tonnes of concentrate have been delivered to Red Kite. As
part of the loan agreement the Company paid an origination fee of 2% and issued
to Red Kite 1,791,700 warrants exercisable at Cdn$3.90 per share expiring on
April 22, 2013. Proceeds from the loan were used to retire the outstanding
balance payable by Rosemont Copper Company under the Sumitomo Loan
Agreement.

The Company required Red Kites consent to execute the Joint
Venture Agreement with UCM (described below) and, in exchange for the consent,
the Company agreed to pay Red Kite $0.93 million for accrued interest to October
1, 2010 and to cancel the one-time option to extend the maturity date. As at
December 31, 2010, $0.51 million of loan interest was outstanding.

On August 27, 2010, the Company completed a private placement
with HudBay Minerals Inc. (HudBay) for the sale of 10,905,590 units at
Cdn$2.75 per unit for gross proceeds of approximately Cdn$30 million. Each unit
consists of one common share and one-half of a share purchase warrant. Each full
warrant is exercisable into one common share at a price of Cdn$3.90 per share
for an eighteen month period expiring on February 27, 2012. HudBay exercised these warrants on March
18, 2011 on notice by the Company accelerating the expiry of the warrants to
March 21, 2011.

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- 7 -

On September 16, 2010, Rosemont entered into an Earn-In
Agreement with United Copper & Moly LLC (UCM), a company formed by Korea
Resources Corporation and LG International Corp to hold its interest in the
Rosemont joint venture (Rosemont JV or the Joint Venture). Pursuant to the
Earn-In Agreement, UCM can acquire up to a 20% interest in the Rosemont JV by
funding $176 million (the Investment) of project expenditures. UCM will fund a
maximum $70 million for permitting, engineering, long-lead equipment purchases
and ongoing support activities (collectively, Pre-Construction Costs) and the
remaining $106 million for construction. UCM and Rosemont have also entered into
a Joint Venture Agreement to establish their roles and responsibilities in the
Rosemont JV and agreed to enter into an off-take agreement for 30% of the copper
concentrates and 20% of copper cathode and molybdenum concentrates produced
annually by the Rosemont project. As funds for the Pre-Construction Costs are
advanced UCM will earn its proportionate interest in the Rosemont JV. In the
fourth quarter 2010 UCM contributed $36.2 million to earn a 4.1% interest in the
Rosemont JV.

On November 16, 2010 the Draft Environmental Impact Statement
(DEIS) was delivered to the US Forest Services, Coronado National Forest which
included additional plant study and groundwater modelling of development plan
alternatives for internal review. Upon completion of the various levels of
review by the Regional Forest Service Office and the cooperating agencies, the
DEIS will be printed and released to the public, which starts the 90-day
consultation period. The Company expects the DEIS will be released in the second
quarter of 2011.

For a more detailed discussion of the Rosemont Project refer to
the Material Mineral Property under Narrative Description of the Business below.

Augustas Objectives for 2011

Augustas key objective for 2011 is to work towards completing
the EIS process and receiving the ROD on its Rosemont Project. To accomplish
this, Augusta will have to secure all remaining required regulatory permits
through the federal state and local regulatory process while maintaining an
active community relations program, including support of local and regional
activities. In addition, Augusta will need to advance detailed engineering,
including earthwork, civil and structural design and advance project management
with the intention of being  ready for construction activities upon completion of the regulatory permits. The Company plans to hire additional project and
operations personnel as the Company gears up for the start of construction.
Finally, Augusta will need to follow through with its project financing strategy
that will see 55%-65% of the estimated $900 million capital cost covered by
equipment, concentrate off-take and bank debt financings. UCM will fund the
remaining $34 million of the maximum $70 million of Pre-Construction Costs and
$106 million during construction. The remaining project capital cost will come
from Silver Wheatons $230 million upfront cash payments for the sale of all of
Rosemonts silver and gold produced from Rosemont.

ITEM 4: NARRATIVE DESCRIPTION OF THE BUSINESS

The Company is engaged in the acquisition, exploration and, if
warranted, development of natural mineral resource properties. The Company does
not produce, develop or sell any products at this time. The properties that the
Company has interest in are in the exploratory or development stage and are thus
non-producing and consequently do not generate any operating income or cash
flows from operations. Currently, the Companys only material property is the
Rosemont Copper Property located in Pima County, Arizona.

The Company depends on equity capital and debt to finance its
  activities.

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- 8 -

Specialized Skill and Knowledge

Various aspects of the Companys business require specialized
skills and knowledge. Such skills and knowledge include the areas of mine
construction, permitting, geology, drilling, metallurgy, logistical planning and
implementation of exploration programs as well as finance and accounting. It may
be difficult to locate competent employees and consultants in such fields. So
far, the Company has been able to locate and retain such employees and
consultants and believes it will continue to be able to do so. It is possible,
however, that delays or increased costs may be experienced in order to proceed
with its planned business activities if the Company is unable to retain such
expertise.

Competitive Conditions

Competition in the mining industry is intense. The Company
competes with other mining companies, many of which have greater financial
resources and technical facilities for the acquisition and development of, and
production from, mineral concessions, claims, leases and other interests, as
well as for the recruitment and retention of qualified employees and
consultants.

Business Cycles

The mining business is subject to volatility of the metal
prices. The marketability of minerals and mineral concentrates is also affected
by worldwide economic cycles. The Companys operations are related and sensitive
to the market price of copper and, to a lesser degree to other metal prices such
as molybdenum, silver and gold. Metal prices fluctuate widely and are affected
by numerous factors such as global supply, demand, inflation, exchange rate,
interest rates, forward selling by producers, central bank sales and purchases,
production, global or regional political, economic or financial situations and
other factors beyond the control of the Company.

Economic Dependence

The Companys business is not substantially dependent on any
contract such as a contract to sell the major part of its products or services
or to purchase the major part of its requirements for goods, services or raw
materials. The Company has no revenue and does not expect to generate any
revenues until completion of construction at the Rosemont Project and Rosemont
reaches commercial production in the latter part of 2013. As a result, the Company relies on equity
and debt financing to finance its business activities and any adverse global
economic crisis may cause a detrimental effect on the Companys ability to raise
equity and debt financings.

Environmental

The Companys Rosemont Property is up to date and compliant
with its environmental obligations and as such there are no material
environmental liabilities. However, as the Rosemont Property reaches a stage of
commercial viability, the Company will be required to comply with federal, state
and local regulations prior to entering commercial production.

Employees

As at December 31, 2010, the Company had nine employees in the
Vancouver, British Columbia office, two employees in its Toronto, Ontario
office, eight employees in the Glendale, Colorado office and twenty three
employees in the Tucson, Arizona. As operations require, the Company also
retains geologists, engineers, geophysicists and other consultants on a fee for
service basis. The Toronto office employees and eight of the Vancouver office
employees also have responsibilities with other publicly traded companies. The
Company only pays its share of the costs of these employees. Upon finalization
of the permitting process, the Company will embark on a significant hiring program to ensure
there is adequate staffing and that the staff is fully trained in time for
commercial production.

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Risk Factors

An investment in the Companys common shares is highly
speculative and subject to a number of risks. Only those persons who can bear
the risk of the entire loss of their investment should invest in the common
shares of the Company. An investor should carefully consider the risks described
below and the other information filed with the Canadian securities regulators
before investing in Companys common shares. The risks described below are not
the only ones faced. Additional risks that the Company currently does not
foresee or believes to be immaterial may become important factors that affect
the Companys business. If any of the following risks occur, or if others occur,
the Companys business, operating results and financial condition could be
seriously harmed and investors may lose all of their investment.

The Company has a history of losses and anticipates that
it will continue to incur losses for the foreseeable future.

The Company has historically incurred losses as evidenced by
its financial statements, including the consolidated statements of operations
contained in its annual audited financial statements for the year ending
December 31, 2010.

As the Companys only material property is the Rosemont
Property, the Company continues to assess other strategic opportunities for
acquiring, exploring, advancing and developing mineral properties. The Company
does not anticipate that it will earn any significant revenue from its
operations until Rosemont reaches commercial production in the latter part of 2013.

The Company will require additional capital to fund its
business plans.

As of December 31, 2010, Augusta had working capital of $27.2
million. Augusta has minimal revenue from its operations and does not expect to
generate any significant revenue until 2013 when the Rosemont project is placed
into commercial production. Augusta will require project financing to be in
place by the fourth quarter 2011 as the Company prepares for the construction phase.
Augusta may raise additional capital through debt or equity financing, and
possibly production sharing arrangements or other means. Recent upheavals in the
financial markets worldwide could make it very difficult for Augusta to raise
funds. Such funding may not be available on commercially acceptable terms or at
all. The Companys failure to meet its ongoing obligations on a timely basis or
raise additional funds that may be required could result in delay or indefinite
postponement of further exploration and development of the Companys property or
the loss or substantial dilution of any of its property interests.

The Company has historically depended on distributions of
its securities to fund its working capital and funding requirements.

Historically, the Company has raised funds principally through
the sale of securities of Augusta. Additional equity financing would cause
dilution to Augustas existing shareholders. In addition, the unrestricted
resale of outstanding shares from the exercise of dilutive securities may have a
depressing effect on the market for the Companys common shares.

As at the date of this AIF, 141,928,493 common shares of
Augusta were issued and outstanding. In addition, Augusta had outstanding
10,253,939 convertible securities comprising of stock options, warrants, and
restricted share units, which in aggregate may result in the issuance of
10,253,939 common shares.

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The Company could lose its only material property in the
event of a default under the Red Kite Loan Agreement.

The Companys obligations under the Red Kite loan are secured
by the common shares and assets of Rosemont Copper Company, which holds the
Companys only material property. In the event of a default under the Red Kite
Loan Agreement, if the Company is unable to immediately pay all accrued and
unpaid interest and principal debt, Red Kite is entitled to take possession of
the common shares and assets of Rosemont Copper Company and sell, lease, or
dispose of such collateral including the Rosemont Property and apply the
proceeds to the Companys debt. If such an event occurs, the Company could lose
its only material property and Augustas shareholders could lose their entire
investment.

The Companys Joint Venture Agreement with UCM could
result in the possibility of deadlock

Under the Joint Venture Agreement, a number of important
project decisions (including program and budget approval, the replacement of the
operator and the terms and conditions of project financing) require unanimous
approval of the parties, which means that each party to the Joint Venture has a
right to veto any of these decisions, which could lead to a deadlock.

The Company may be subject to risks relating to the
global economy.

Market events and conditions, including disruptions in the
international credit markets and other financial systems and the deterioration
of global economic conditions, could impede Augustas access to capital or
increase the cost of capital.

The Company is also exposed to liquidity risks in meeting its
operating and capital expenditure requirements in instances where its cash
position is unable to be maintained or appropriate financing is unavailable.
These factors may impact the ability of the Company to obtain loans and other
credit facilities in the future and, if obtained, on terms favourable to the
Company. Increased market volatility may impact the Companys operations which
could adversely affect the trading price of the Companys common shares.

The Company has no history of production and may never
place any of its properties into production.

The Companys properties are not in commercial production, and
the Company has never recorded any revenues from mining operations. The Company
expects to incur losses unless and until such time as its properties enter into
commercial production and generate sufficient revenues to fund its continuing
operations. The development of mining operations on its properties will require
the commitment of substantial resources for operating expenses and capital
expenditures, which may increase in subsequent years as needed consultants,
personnel and equipment associated with advancing development and commercial
production of its properties is added. The amounts and timing of expenditures
will depend on the progress of ongoing development, the results of consultants
analysis and recommendations, the rate at which operating losses are incurred,
the execution of any joint venture agreements with strategic partners, the
acquisition of additional properties, and other factors, many of which are
beyond its control. The Company may not generate any revenues or achieve
profitability.

The Companys exploration activities may not be
commercially successful.

Mineral exploration is highly speculative in nature, involves
many risks and is frequently non-productive. Unusual or unexpected geologic
formations, and the inability to obtain suitable or adequate machinery,
equipment or labour are risks involved in the conduct of exploration programs.
The Company is currently advancing detailed engineering work in preparation for
construction and as such it is largely beyond the exploration stage for its
Rosemont Property. The success of mineral exploration and development is
determined in part by the following factors:

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- 11 -

- the identification of potential mineralization based on analysis;
- the availability of exploration permits;
- the quality of the Companys management and its geological and technical
  expertise; and
- the capital available for exploration.

Substantial expenditures and time are required to establish or
to add to existing proven and probable reserves through drilling and analysis,
to develop metallurgical processes to extract metal, and to develop the mining
and processing facilities and infrastructure at any site chosen for mining.
Whether a mineral deposit will be commercially viable depends on a number of
factors, which include, without limitation, the particular attributes of the
deposit, such as size, grade and proximity to infrastructure; metal prices,
which fluctuate widely; and government regulations, including, without
limitation, regulations relating to prices, taxes, royalties, land tenure, land
use, importing and exporting of minerals and environmental protection.

The Companys exploration and development projects have not had
any revenues from operations upon which to base estimates of future operating
costs or future revenues from operations. Particularly for development projects,
estimates of proven and probable mineral reserves and cash operating costs are,
to a large extent, based upon the interpretation of geologic data obtained from
drill holes and other sampling techniques, and feasibility studies that derive
estimates of cash operating costs based upon anticipated tonnage and grades of
ore to be mined and processed, the configuration of the ore body, expected
recovery rates of metals from the ore, estimated operating costs, anticipated
climatic conditions and other factors. As a result, it is possible that actual
cash operating costs and economic returns will differ significantly from those
currently estimated.

Any of the following events, among others, could affect the
profitability or economic feasibility of a project, unanticipated changes in
grade and tonnage of ore to be mined and processed, unanticipated adverse
geotechnical conditions, incorrect data on which engineering assumptions are
made, costs of constructing and operating a mine in a specific environment,
availability and costs of processing and refining facilities, availability of
economic sources of power, adequacy of water supply, availability of surface
tenure on which to locate processing and refining facilities, adequate access to
the site, including competing land uses (such as agriculture and illegal
mining), unanticipated transportation costs, and accidents, labour actions and
force majeure events.

Exploration, development and mining involve a high degree
of risk.

The Companys operations will be subject to all the hazards and
risks normally encountered in the exploration, development and production of
copper and other base or precious metals, including, without limitation,
encountering unusual or unexpected geologic formations or other geological or
grade problems, unanticipated changes in metallurgical characteristics and metal
recovery, periodic interruptions due to inclement or hazardous weather
condition, seismic activity, rock bursts, pit-wall failures, cave-ins,
encountering unanticipated ground or water conditions, flooding, fire, and other
conditions involved in the drilling, removal of material, environmental hazards,
discharge of pollutants or hazardous chemicals, industrial accidents, failure of
processing and mining equipment, labour disputes, supply problems and delays and
changes in the regulatory environment any of which could result in damage to, or
destruction of, mineral properties, mines and other producing facilities, damage
to life or property, personal injury or death, loss of key employees,
environmental damage, delays in the Companys exploration and development
activities, monetary losses and legal liabilities. Satisfying such liabilities
may be very costly and could have a material adverse effect on the Companys
future cash flow, results of operations and financial condition.

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The Company may be adversely affected by fluctuations in
copper, molybdenum, silver, gold and other metal prices.

The value and price of the Companys common shares, financial
  results, and its exploration, development and mining, if any, activities may be
  adversely affected by declines in the price of copper, molybdenum, silver, gold and other metals. Mineral prices fluctuate widely
  and are affected by numerous factors beyond the Companys control such as
  interest rates, exchange rates, inflation or deflation, fluctuation in the value
  of the US dollar and foreign currencies, global and regional supply and demand,
  and the political and economic conditions of mineral producing countries
  throughout the world. The price for metals can fluctuate in response to many
  factors beyond anyones ability to predict. The prices used in making the
  resource estimates are disclosed and differ from daily prices quoted in the news
  media. The percentage change in the price of a metal cannot be directly related
  to the estimated resource quantities, which are affected by a number of
  additional factors. For example, a 10 percent change in price may have little
  impact on the estimated resource quantities and affect only the resultant cash
  flow, or it may result in a significant change in the amount of resources.
  Because mining occurs over a number of years, it may be prudent to continue
  mining for some periods during which cash flows are temporarily negative for a
  variety of reasons, including a belief that the low price is temporary and/or
  the greater expense incurred in closing a property permanently.

Mineralized material calculations and life-of-mine plans using
significantly lower metal prices could result in material write-downs of the
Companys investments in the Rosemont Property and increased amortization,
reclamation and closure charges.

In addition to adversely affecting the Companys mineralized
material estimates and financial condition, declining metal prices could impact
operations by requiring a reassessment of the commercial feasibility of the
Rosemont Project. Such a reassessment may be the result of a management decision
related to a particular project. Even if the project is ultimately determined to
be economically viable, the need to conduct such a reassessment may cause
substantial delays in development or may interrupt operations, if any, until the
reassessment can be completed.

Production and cost estimates may be worse than
anticipated.

The decision by the Company to proceed with the development of
the Rosemont Project was based on economic projections determined as part of the
2007 Feasibility Study process later supported by the 2009 Feasibility Study
completed in January 2009. Included in these projections were estimates for
metal production and capital and operating costs. Failure to achieve these
production, capital and operating cost estimates or material increases in costs
could have an adverse impact on the Companys future cash flows, profitability,
results of operations and financial condition.

The Companys actual production and capital and operating costs
may vary from estimates for a variety of reasons, including: actual ore mined
varying from estimates of grade, tonnage, dilution and metallurgical and other
characteristics; short-term operating factors relating to the ore reserves, such
as the need for sequential development of ore bodies and the processing of new
or different ore grades; revisions to mine plans; risks and hazards associated
with mining; natural phenomena, such as inclement weather conditions, water
availability, floods, and earthquakes; and unexpected labour shortages or
strikes. Costs of production may also be affected by a variety of factors,
including; changing waste-to-ore ratios, ore grade metallurgy, labour costs, the
cost of commodities, general inflationary pressures and currency rates.

Litigation may adversely affect the Companys
assets.

The Company may be involved in disputes with other parties in
the future, which may result in litigation. The results of litigation cannot be
predicted with certainty. If the Company is unable to resolve these disputes
favorably, it may have a material adverse impact on the Companys financial
performance, cash flow and results of operations.

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Title to the Companys properties may be subject to other
claims.

Although the Company believes it has exercised commercially
reasonable due diligence with respect to determining title to properties it
owns, controls or has the right to acquire by option, there is no guarantee that
title to such properties and other tenure will not be challenged or impugned.
The Companys mineral property interests may be subject to prior unrecorded
agreements or transfers or native land claims and title may be affected by
undetected defects. There may be valid challenges to the title of the Companys
properties which, if successful, could impair development and/or operations.
This may be exacerbated due to the large number of title transfers historically
involved with some of the properties.

The Company is subject to risks related to community
action.

All industries, including the mining industry, are subject to
community actions. In recent years, communities and non-governmental
organizations have become more vocal and active with respect to mining
activities at or near their communities. These parties may take actions such as
road blockades, applications for injunctions seeking work stoppage and lawsuits
for damages. These actions can relate not only to current activities but also in
respect of decades old mining activities by prior owners of subject mining
properties.

Estimates of mineralized materials are subject to
geologic uncertainty and inherent sample variability.

Although the estimated resources at the Rosemont Property have
been delineated with appropriately spaced drilling, there is inherent
variability between duplicate samples taken adjacent to each other and between
sampling points that cannot be reasonably eliminated. There also may be unknown
geologic details that have not been identified or correctly appreciated at the
current level of delineation. This results in uncertainties that cannot be
reasonably eliminated from the estimation process. Some of the resulting
variances can have a positive effect and others can have a negative effect on
mining and processing operations. Acceptance of these uncertainties is part of
any mining operation.

Mineral resources and proven and probable reserves are
estimates.

Although the mineralized material and proven and probable
reserve figures included in this document have been carefully prepared by
independent engineers, these amounts are estimates only, and the Company cannot
be certain that specific quantities of copper, molybdenum, silver, gold or other
minerals will in fact be realized. There are numerous uncertainties inherent in
estimating measured, indicated and inferred mineral resources and proven and
probable mineral reserves including many factors beyond the Companys control.
The estimation of mineral resources and mineral reserves is necessarily a
subjective process, and the accuracy of any such estimates are a function of the
quantity and quality of available data and of the assumptions made and judgments
used in engineering and geological interpretations, which may prove to be
unreliable and different materially from actual results. Any material change in
the quantity of mineralization, grade or stripping ratio, or mineral prices may
affect the economic viability of its properties. In addition, the Company cannot
be certain that metal recoveries in small-scale laboratory tests will be
duplicated in larger scale tests under on-site conditions or during production.
Until a deposit is actually mined and processed the quantity of mineral
resources and reserves and grades must be considered as estimates only.

Government regulation may adversely affect the Companys
business and planned operations.

The Company believes the Rosemont project complies with
existing environmental and mining laws and regulations affecting its operations.
Its mining, processing, development and mineral exploration activities, if any,
will be subject to various laws governing prospecting, mining, development,
production, taxes, labour standards and occupational health, mine safety, toxic
substances, land use, water use, land claims of local people and other matters.
The Company can provide no assurance that new rules and regulations will not be
enacted or that existing rules and regulations will not be applied in a manner
which could limit or curtail production or development.

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- 14 -

A portion of the present Rosemont Property land position is
located on unpatented mine and millsite claims located on US federal public
lands. The right to use such claims are granted under the United States General
Mining Law of 1872 (the General Mining Law). Unpatented mining claims are
unique property interests in the US, and are generally considered to be subject
to greater title risk than other real property interests because the validity of
unpatented mining claims is often uncertain. This uncertainty arises, in part,
out of the complex federal and state laws and regulations under the General
Mining Law and the interaction of the General Mining Law and other federal and
state laws, such as those enacted for the protection of the environment.
Unpatented mining claims are subject to possible challenges by third parties or
contests by the federal government. The validity of an unpatented mining claim,
in terms of both its location and maintenance, is dependent on strict compliance
with a complex body of federal and state statutory or decisional law. In
addition, there are few public records that definitively control the issues of
validity and ownership of unpatentable mining claims. In recent years, the US
Congress has considered a number of proposed amendments to the General Mining
Law. If adopted, such legislation could, among other things:

- impose a royalty on the production of metals or minerals from unpatented
  mining claims;
- reduce or prohibit the ability of a mining company to expand its
  operations; and
- require a material change in the method of exploiting the reserves located
  on unpatented mining claims.

All of the foregoing could adversely affect the economic and
financial viability of any future mining operations at the Rosemont
Property.

Amendments to current laws, regulations and permits governing
operations and activities of mining and exploration companies, or more stringent
implementation thereof, could have a material adverse impact on its business and
cause increases in exploration expenses, capital expenditures or production
costs or reduction in levels of production at producing properties or require
abandonment or delays in development of new mining properties.

The Company will require exploration and mining permits
and licences.

No guarantee can be given that the necessary exploration and
mining permits and licences will be issued to the Company or, if they are
issued, that they will be renewed, or that the Company will be in a position to
comply with all conditions that are imposed. Nearly all mining projects require
government approval. There can be no certainty that these approvals will be
granted to the Company in a timely manner, or at all.

The Companys operations are subject to environmental
risks.

All phases of the Companys operations are subject to federal,
state and local environmental regulation in the jurisdictions in which the
Company operates. These regulations mandate, among other things, the maintenance
of air and water quality standards and land reclamation. They also set forth
limitations on the generation, transportation, storage and disposal of solid and
hazardous waste. Environmental legislation is evolving in a manner which will
require stricter standards and enforcement, increased fines and penalties for
non-compliance, more stringent environmental assessments of proposed projects
and a heightened degree of responsibility for companies and their officers,
directors and employees. The Company cannot be certain that future changes in
environmental regulation, if any, will not adversely affect its operations.
Environmental hazards may exist on the properties on which the Company holds and
will hold interests which are unknown to the Company at present and which have
been caused by previous or existing owners or operators of the properties.

Failure to comply with applicable laws, regulations and
permitting requirements may result in enforcement actions thereunder, including
orders issued by regulatory or judicial authorities causing operations to cease
or be curtailed, and may include corrective measures requiring capital
expenditures, installation of additional equipment, or remedial actions. Parties
engaged in mining operations or in the exploration or development of mineral
properties may be required to compensate those suffering loss or damage by
reason of the mining activities and may have civil or criminal fines or penalties
imposed for violations of applicable laws or regulations.

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- 15 -

Production, if any, at its mines will involve the use of
hazardous materials. Should these materials leak or otherwise be discharged from
their containment systems then the Company may become subject to liability for
hazards that it may not be insured against or for clean up work that may not be
insured.

The Companys Common Shares may be subject to price and
volume fluctuations and the market price for the common shares of the Company
may drop below the price at which such common shares were purchased.

In recent years, securities markets have experienced
considerable price and volume volatility, and the market prices of securities of
many companies have been subject to wide fluctuations not necessarily related to
the operating performance, underlying asset values, exploration success or
prospects of such companies. The market price of a publicly traded stock,
especially a junior resource issuer, is affected by many variables including the
market for junior resource stocks, the strength of the economy generally,
commodity prices, the availability and attractiveness of alternative
investments, and the breadth of the public market for the stock. The effect of
these and other factors on the market price of securities on the stock exchanges
on which Augusta trades, suggest the trading price of the common shares will
continue to be volatile. There can be no assurance that such fluctuations will
not affect the price of Augustas common shares and that the price of such
common shares may decline below the purchase price paid for such common
shares.

In the past, following periods of volatility in the market
price of a companys securities, shareholders have often instituted class action
securities litigation against those companies. Such litigation, if instituted,
could result in substantial costs and diversion of management attention and
resources, which could significantly harm the Companys profitability and
reputation.

The Company does not insure against all
risks.

The Companys insurance policies do not insure the Company
against all the potential risks associated with a mining companys operations.
The Company may also be unable to maintain insurance to cover these risks at
economically feasible premiums. Insurance coverage may not continue to be
available or may not be adequate to cover any resulting liability. Moreover,
insurance against risks such as environmental pollution or other hazards as a
result of exploration and production is not generally available to the Company
or to other companies in the mining industry on acceptable terms. The Company
might also become subject to liability for pollution or other hazards which may
not be insured against or which the Company may elect not to insure against
because of premium costs or other reasons. Losses from these events may cause
the Company to incur significant costs that could have a material adverse effect
upon the Companys financial condition and results of operations.

The Company competes with larger, better capitalized
competitors in the mining industry.

The mining industry is competitive in all of its phases. The
Company faces strong competition from other mining companies in connection with
the acquisition of properties producing, or capable of producing, base and
precious metals. Many of these companies have greater financial resources,
operational experience and technical capabilities than the Company. As a result
of this competition, the Company may be unable to maintain or acquire attractive
mining properties on terms it considers acceptable or at all. Consequently, the
Companys revenues, operations and financial condition could be materially
adversely affected.

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- 16 -

Any metal price hedging activities undertaken by the
Company may also limit the price that it can realize on such metals.

Other than in respect of the silver and gold purchase
arrangement entered into with Silver Wheaton, the Company has no hedges in place
against volatility in the metal prices. The Company may engage in hedging
activities in the future. Hedging activities are intended to protect a company
from the fluctuations of the prices of metal and to minimize the effect of
declines in prices on results of operations for a period of time. Although
hedging activities may protect a company against low metal prices, they may also
limit the price that can be realized on the relevant metal that is subject to
forward sales and call options where the market price of the relevant metal
exceeds the price in a forward sale or call option contract.

The Company may incur losses associated with foreign
currency fluctuations.

The Company operates predominantly in the United States and
Canada, and incurs most of its expenses in the Companys sole material property,
which is located in the United States. Consequently, a significant portion of
the Companys operating expenses are incurred in US dollars. The fluctuation of
the exchange rate between the US dollar and the Canadian dollar may affect the
Companys stock price and its financial condition.

The Company is dependent on its key
personnel.

The Companys success depends on its key executives. The loss
of the services of one or more of such key management personnel could have a
material adverse effect on the Company. The Companys ability to manage
exploration and development activities, and hence its success, will depend in
large part on the efforts of these individuals. The Company faces intense
competition for qualified personnel, and cannot be certain that it will be able
to attract and retain such personnel.

The Companys officers and directors may have potential
conflicts of interest.

Certain of the Companys directors and officers serve as
directors and/or officers of other public and private companies and devote a
portion of their time to manage other business interests. This may result in
certain conflicts of interest. To the extent that such other companies may
participate in ventures in which the Company is also participating, such
directors and officers may have a conflict of interest in negotiating and
reaching an agreement with respect to the extent of each companys
participation. The laws of Canada require the directors and officers to act
honestly, in good faith, and in the best interests of the Company and its
shareholders. However, in conflict of interest situations, the Companys
directors and officers may owe the same duty to another company and will need to
balance the competing obligations and liabilities of their actions. There is no
assurance that the Companys needs, will receive priority in all cases. From
time to time, several companies may participate together in the acquisition,
exploration and development of natural resource properties, thereby allowing
these companies to: (i) participate in larger programs; (ii) acquire an interest
in a greater number of programs; and (iii) reduce their financial exposure with
respect to any one program. A particular company may assign, at its cost, all or
a portion of its interests in a particular program to another affiliated company
due to the financial position of the company making the assignment. In
determining whether or not the Company will participate in a particular program
and the interest therein to be acquired by it, it is expected that the Companys
directors will primarily consider the degree of risk to which the Company may be
exposed and its financial position at the time.

The Company provides indemnity and protection to its
directors and officers.

Section 7 of Augustas By-Law No.1 provides that Augusta shall
indemnify a director or officer, a former director or officer, or a person who
acts or acted at Augustas request as a director or officer of a body corporate
of which Augusta is or was a shareholder or creditor against all costs, charges
and expenses, including an amount paid to settle an action or satisfy a
judgment. Thus, Augusta may be required to pay amounts to settle any such claims that may arise. The impact of
any such possible future indemnity protection cannot be determined at this
time.

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- 17 -

The Company does not intend to pay dividends.

Augusta has never paid a dividend to its shareholders and
intends to retain its cash for the continued development of its business.
Augusta does not intend to pay cash dividends on its common stock in the
foreseeable future. As a result, an investors return on investment will be
solely determined by his or her ability to sell the Companys common shares in
the secondary market.

The Company faces increased costs and compliance risks as
a result of being a public company.

Legal, accounting and other expenses associated with public
company reporting requirements have increased significantly in the past few
years. The Company anticipates that general and administrative costs associated
with regulatory compliance will continue to increase with ongoing compliance
requirements under the Sarbanes-Oxley Act of 2002,as well as any new
rules implemented by the SEC, Canadian Securities Administrators, the NYSE Amex
and the TSX in the future. These rules and regulations have significantly
increased the Companys legal and financial compliance costs and made some
activities more time-consuming and costly. There can be no assurance that the
Company will continue to effectively meet all of the requirements of these
regulations, including Sarbanes-Oxley Section 404and National
Instrument 52-109 of the Canadian Securities Administrators(NI 52-109).
Any failure to effectively implement internal controls, or to resolve
difficulties encountered in their implementation, could harm the Companys
operating results, cause the Company to fail to meet reporting obligations or
result in management being required to give a qualified assessment of the
Companys internal controls over financial reporting or the Companys
independent auditors providing an adverse opinion regarding managements
assessment. Any such result could cause investors to lose confidence in the
Companys reported financial information, which could have a material adverse
effect on the trading price of the Companys common shares. These rules and
regulations have made it more difficult and more expensive for it to obtain
director and officer liability insurance, and the Company may be required to
accept reduced policy limits and coverage or incur substantially higher costs to
obtain the same or similar coverage in the future. As a result, it may be more
difficult for the Company to attract and retain qualified individuals to serve
on its board of directors or as executive officers. If the Company fails to
maintain the adequacy of its internal control over financial reporting, the
Companys ability to provide accurate financial statements and comply with the
requirements of the Sarbanes-Oxley Act of 2002and/or NI 52-109 could be
impaired, which could cause the Companys stock price to decrease.

Material Mineral Property

The following is a narrative description of the Companys only
material property.

The Rosemont Property

On June 1, 2005, the Company announced that it had entered into
an Option Agreement to purchase 100% of the Rosemont Property in Pima County,
Arizona. After making the initial payment of $6.7 million in June 2005, the
Company completed the remaining payment of $13.7 million on March 31, 2006,
after adjusting for early payment provisions, and thereby acquired a 100%
working interest in the property subject to the 3% NSR.

The Rosemont Property, which includes patented and unpatented
claims, fee land and leased grazing ranchland, is approximately 50 kilometres
southeast of Tucson. The Rosemont Property covers most of the Rosemont Mining
District and adjacent Helvetia Mining District and contains an open-pit mineable
copper/molybdenum/silver (Cu-Mo-Ag) skarn deposit, as well as other
exploration targets, on patented mining claims. Taken together the land position
is sufficient to allow mining of the open pit, processing of ore, storage of tailings, disposal of waste rock, and operation
of milling equipment. These lands are accessible under provisions of the General
Mining Law, subject to obtaining approval from the US Forest Service after
completion of an EIS process. The EIS process includes interagency consultation
on endangered species and cultural resources. The use of the project surface
rights will require obtaining a number of federal, state, and local permits and
approvals, which are now in progress.

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- 18 -

The Rosemont deposit, the principal known area of
mineralization on the Rosemont Property, is a typical representative of the
porphyry copper class of deposits. Similar to many of other south-western US
deposits in this class, Rosemont consists of broad-scale skarn mineralization
developed in Paleozoic-aged carbonate sedimentary rocks, adjacent to their
contact with quartz-latite or quartz-monzonite porphyry intrusive rocks. The
deposit has been extensively drilled using diamond core holes.

The eastern portion of the property is easily reached from the
city of Tucson by traveling Interstate Highway I-10 approximately 25 miles (40
kilometres) east to its intersection with Arizona State Highway 83, then
continuing south for approximately 11 miles (18 kilometres) where Highway 83
crosses the Rosemont Property. From Highway 83, a number of unimproved dirt
roads access various locations on the property. The western portion of the
property is reached from Tucson by following Interstate Highway I-19 south about
20 miles (30 kilometres) to the town of Sahuarita, then east 10-15 miles (20 km)
along any of a number of unpaved roads that lead to the property.

Weather presents no significant difficulties to mining
operations in the area. The semi-arid climate, typical of the Arizona-Sonoran
Desert, produces an average of about 8 inches (20 centimetres) annual rainfall,
mostly during the late summer and winter months. Temperatures range from about
25oF to 115oF (-4oC to 45oC). The resulting vegetation ranges from mesquite and
grasses in the lower elevations to oak, pine and juniper in the mountains.

Sufficient mining personnel are available within commuting
distance of the site. Tucson, Arizona is a city in excess of 500,000 people and
has a well known history of mining in the area. The proximity of the property to
the metropolitan Tucson area allows for the convenient transportation of
workers, equipment, and supplies to the site using established road ways.

Environmental/Permitting

In July 2007 the Company formally filed the MPO with the US
Forest Service. The detailed plan for Augustas Rosemont Project includes
progressive design, conservation and sustainability initiatives. Once approved,
the final Rosemont MPO becomes a binding document that assures the MPOs
commitments, including reclamation and closure funding guarantees. Highlights of
the plan include:

- Significant Economic Benefits The Rosemont Project is expected to
  produce 221 million pounds of copper per year (for the first eight years),
  along with significant amounts of molybdenum and silver. The Rosemont Project
  alone may produce 10% of the entire US copper production. About 450
  high-paying direct jobs, as well as at least 1,000 indirect jobs will be
  created, adding over $500 million in local payroll over the mine life and $1.4
  billion in goods and services, in addition to local, state, and federal tax
  revenue.
- Water Conservation The Rosemont Project design avoids impacts to
  the Davidson Canyon and Cienega Creek watershed. The Rosemont Project water
  supply is permitted from the Tucson Aquifer, where available CAP water is
  already being purchased and stored in advance. The Rosemont Project will
  replace the water removed from the local aquifer. In addition, new water
  conservation and recycling techniques at the Rosemont Project will save 50 to
  60% of the total water used in traditional mining.

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- 19 -

- Concurrent Reclamation Reclamation will begin within the first
  year of mine operation and will feature state-of-the-art practices throughout
  the mine life. These practices include greenhouse and test plot studies for
  optimum re-vegetation, use of cattle to prepare the seedbed for replanting,
  and construction of perimeter buttresses to stabilize soil and shield visual
  impact from state highway SH 83.
- Community Endowment At the end of the estimated 20 years of
  production, the Rosemont facility will be reclaimed to open space, with
  certain lands protected with recreation and conservation easements in
  perpetuity. In addition, interest earned from the project community endowment
  will provide funds to support local projects for generations to come.

Water conservation is one of the most important components of
the Companys plan to operate the Rosemont Project. A total of 45,000 acre feet
of water delivered by the Central Arizona Project has been stored in the Tucson
active management area basin, enough for an estimated 8 -9 years operating
supply.

Using the MPO as a basis for permitting, the National
Environmental Policy Act (NEPA) process was officially launched during the
first quarter of 2008 when both the US Forest Service and the Bureau of Land
Management made determinations of completeness regarding Rosemonts MPO. The MPO
was deemed sufficient to initiate the process for preparing an EIS under federal
law.

Applications for operation permits were initiated after
submittal of the MPO. Of these, the 20-year groundwater withdrawal permit, was
approved and issued by Department Water Resources in early 2008. In July 2009
the land reclamation plan was approved by the Arizona State Mine Inspector.
Other permits to be issued include the following:

- The Aquifer Protection Permit issued by the Arizona Department of
  Environmental Quality that sets the operating standards and controls so that
  operations do not degrade groundwater;
- The Air Permit that will be issued by the Pima County Department of
  Environmental Quality which will set requirements for dust control and process
  management;
- The Certificate of Environmental Compliance Process that is managed by the
  Arizona Corporation Commission. The ultimate power route will be determined by
  the Commission and the permit will be issued to Tucson Electric Power. The
  timing for this process has been set so the Right of Way (below) will be the
  one approved for use by the Commission; and
- The State Land Department Right of Way valuation and approval process that
  will provide a route to get water and power to Rosemont.

Over the calendar year 2010, Rosemont permit applications for
air emissions, ground water protection, powerline routes, waterline routes, and
work within waters of the United States were advanced. Public review of draft
permits are anticipated to be completed during latter half of 2011, with final
permits to follow.

The EIS process is managed by the US Forest Service. The ROD
will be issued by the US Forest Service and Bureau of Land Management for mining
activities on public land and by the Army Corps of Engineers for impact of
mining activities on waters of the US. The amended Memorandum of Understanding
with Coronado National Forest (CNF) anticipates the release of Rosemonts DEIS
in the second quarter of 2011 with the public hearings scheduled for the third
quarter of 2011. This follows an April 30, 2010 statement from CNF that the DEIS
would be delayed in order to complete additional native plant studies and
groundwater modeling of development plan alternatives. CNF has completed field
surveys for native plants that live on some of the sites on the land where the
Company has proposed to put the waste rock and mine tailings. In addition, the
DEIS project teams conducting detailed groundwater hydrology studies have
completed further calculations on potential impacts and mitigation measures for
the alternative facility sites under evaluation in the DEIS. The delivery of these two
technical reports completed the submissions from Rosemont to CNF and their third
party contractors. The DEIS was delivered to the CNF by their contractor SWCA on
November 16, 2010 for internal review. Upon completion of these reviews the DEIS
will go to printing at the Government Printing Office and then be released to
the public for their review and comments.

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- 20 -

Engineering and Ongoing Support Activities

Basic engineering on the Rosemont project was completed in the
fourth quarter of 2010. Detailed engineering work has been adjusted to match the
revised construction schedule. Since the commencement of permitting activities,
the Company has maintained an active community relations program which includes
maximizing the economic benefits to the region in which the Rosemont Project
operates in, support of local and regional activities and maintain a community
outreach program.

2009 Feasibility Study

In late 2008 Augusta completed an updated mineral resource
estimate and an update of Rosemonts proven and probable mineral reserve
estimate. The updated estimates represent a 5% increase in the measured and
indicated resource and a 14% increase in the mineral reserve estimate over the
previous estimates completed as part of the 2007 Feasibility Study. Results of
the 2008 mineral resource update and the 2008 mineral reserve update were
incorporated in the 2009 Feasibility Study filed in January 2009.

Results of the 2009 Feasibility Study reconfirmed Rosemont as
an economically robust copper/molybdenum mine with low development risk. Using
long-term metal pricing of $1.85 per pound of copper, $15 per pound of
molybdenum, and $12 per ounce of silver, the project generates an NPV (5%) of
$1.2 billion, an after-tax IRR of 17.8%, and a payback of five years on an
after-tax basis. Even applying the average spot metal prices witnessed in
December 2008 of $1.36 per pound copper, $11.00 per pound of molybdenum and
$10.79 per ounce of silver, the project generates an after-tax IRR of 7.7% .

Cash costs are estimated at $0.62 per pound of copper, net of
by-product credits, while the total capital cost is estimated at $897 million.
The mine life based on current mineral reserves is 21 years.

The following is an extract of the Summary section of the
report on the 2009 Feasibility Study entitled NI 43-101 Technical Report For
the Rosemont Copper Project Updated Feasibility Study, Pima County, Arizona,
USA, dated January 14, 2009 (Volume 1) filed on SEDAR. The principal author
responsible for the overall preparation of the 2009 Feasibility Study is Dr.
Conrad Huss, P.E., Qualified Person, of M3 Engineering & Technology
Corporation and other contributors to the 2009 Feasibility Study include:
William L. Rose, P.E. a Qualified Person, of WLR Consulting, Inc., Thomas L.
Drielick, P.E., a Qualified Person, of M3 Engineering & Technology
Corporation, Robert Fong, P.E., a Qualified Person, of Moose Mountain Technical
Services and John Ajie, P.E., a Qualified Person, of URS Washington Division.
Additional details regarding the Rosemont Property may be obtained from the 2009
Feasibility Study available on SEDAR at www.sedar.com, which readers are
encouraged to review in its entirety.

SUMM ARY

Property

The Rosemont Property is primarily a copper mining project with
appreciable amounts of molybdenum and silver by-products. Rosemont is being
developed by Augusta. The property consists of 132 patented lode claims
comprising about 1969 acres (797 hectares) and a contiguous package of 949
unpatented lode mining claims comprising more than 12,000 acres (4,860 hectares)
which surround the core of patented claims. There are also 10 blocks of fee land
associated with the property, consisting of a number of individual parcels that enclose an additional 911 acres (369 hectares).
The area covered by patented claims, unpatented claims and fee land totals
approximately 15,000 acres (6,070 hectares), and is situated within the historic
Helvetia Mining District on the northwestern flank of the Santa Rita Mountain
Range and the Rosemont Mining District on the northeastern flank of the Santa
Rita Mountain Range.

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- 21 -

Mining activity in the Helvetia and Rosemont Mining Districts
dates to the mid 1800s, and by the 1880s production from mines on both sides of
the Santa Rita Mountains supported the construction and operation of the
Columbia Smelter at Helvetia, on the western side, and the Rosemont Smelter in
the Rosemont Mining District on the eastern side. Production ceased in 1951
after production of about 227,300 tons of ore containing an estimated 17.3
million pounds of copper, 1.1 million pounds of zinc and 180,760 ounces of
silver.

The copper mineralization of the Rosemont deposit is primarily
sulfide with a cap of oxide copper close to the surface. The sulfide and oxide
ore will be mined through conventional open pit mining techniques. Sulfide ore
will be processed by crushing, grinding, and flotation to produce a copper
concentrate product and a molybdenum concentrate product for market. The run of
mine (ROM) oxide ore will be leached and the resulting leach solution processed
through a solvent extraction and electrowinning facility to produce a copper
cathode product for market.

Location

The Rosemont copper-molybdenum-silver deposit is located in
Pima County, Arizona, USA on the northeastern flank of the Santa Rita Mountains
approximately 30 miles southeast of the city of Tucson Arizona. The property
occupies flat to mountainous topography at a surface elevation ranging from
4,000 feet to 6,290 feet and at geographical coordinates of approximately 31°
50 N and 110° 45 W.

Ownership

The Rosemont deposit is the principal known area of
mineralization on the Rosemont Property, a group of patented mining claims,
unpatented mining claims and fee land that in aggregate total approximately
15,000 acres (6,100 hectares). Augusta first became interested in the Rosemont
deposit in 2005 and after completing a two phase drilling program in 2005 and
2006, Augusta completed the purchase of a 100 percent interest in the property
in March 2006. The purchase is subject to a 3% Net Smelter Return (NSR).

Geology and Mineralization

The Rosemont deposit is a typical representative of the
porphyry copper class of deposits. Similar to many other southwestern USA
deposits in this class, Rosemont consists of broad-scale skarn mineralization
developed in Paleozoic-aged carbonate sedimentary rocks, adjacent to their
contact with quartz-latite or quartz-monzonite porphyry intrusive rocks. The
deposit has been extensively drilled using diamond core holes. Broadly
disseminated sulfide mineralization occurs in the Paleozoic units. Near surface
weathering has resulted in the oxidation of the sulfides in the overlying
Mesozoic units.

Exploration and Sampling

In 2008, Augusta completed a 20-hole, 17,522 foot diamond
drilling program, along with the sampling of 10 previously drilled geotechnical
holes. Previously in 2006, Augusta completed a 40-hole, 68,727 foot diamond
drilling program on the deposit, consisting of resource, geotechnical, and
metallurgical holes. In 2005, Augusta carried out a 15-hole, 27,402 foot diamond
drilling program. The results of all of these drilling programs have been
integrated with approximately 210,000 feet of previous drilling, conducted by
other companies prior to Augustas involvement, to estimate the mineral
resources presented in this report.

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- 22 -

This work was incorporated into an updated mineral resource
statement provided in a WLRC Technical Report dated December 4, 2008 herein
referred to as the 2008 Mineral Resource Update.

Mineral Resource and Mineral Reserve Estimates

A block grade model of the Rosemont deposit was constructed
using MEDSystem® software using a geologic model developed in Gemcom® by Augusta
personnel and contract geologists. Statistical studies were conducted to
identify outliers to the distribution of assays and to estimate the ranges of
influence for block grade estimation. Block grade estimations were conducted by
rock type using 50-foot composited data and ordinary kriging interpolation
methods. Blocks were also classified into measured, indicated and inferred
resources in a manner that conforms to NI 43-101 standards. The mineral resource
estimation work was performed by or under the direction of Mr. William Rose,
P.E., WLR Consulting Inc.s (WLRCs) Principal Mining Engineer and an
independent Qualified Person under the standards set forth by NI 43-101.

Updated measured and indicated mineral resource estimates for
the Rosemont deposit are summarized in Tables 1-1 and 1-2, respectively. The
combined measured and indicated mineral resource estimates are presented in
Table 1-3. Inferred mineral resource estimates are shown in Table 1-4. US units
are used in these estimations, where tons refer to short tons (2000 lbs). The
mineral resource estimates contained herein are effective as of October 22,
2008.

Table 1-1 Rosemont Deposit Measured Mineral
Resources

|Material / |         |      |       |        |        |            |            |            | lbs       
|---------- | ------- | ---- | ----- | ------ | ------ | ---------- | ---------- | ---------- | ----------
|Cutoff     |         |      |       | Ag     | %      | lbs Cu     | lbs Mo     | oz Ag      | CuEqv*    
|(% Cu)     | Ktons   | % Cu | % Mo  | Oz/ton | CuEqv* | (millions) | (millions) | (millions) | (millions)
|Oxides:    |         |      |       |        |        |            |            |            |           
|0.10       | 21,600  | 0.20 | -     | -      | 0.20   | 85         | -          | -          | 85        
|0.15       | 14,600  | 0.23 | -     | -      | 0.23   | 68         | -          | -          | 68        
|0.20       | 7,500   | 0.30 | -     | -      | 0.30   | 45         | -          | -          | 45        
|Mixed:     |         |      |       |        |        |            |            |            |           
|0.15       | 4,900   | 0.65 | 0.007 | 0.08   | 0.78   | 64         | 0.7        | 0.4        | 76        
|0.20       | 4,800   | 0.66 | 0.007 | 0.08   | 0.79   | 64         | 0.7        | 0.4        | 76        
|0.25       | 4,700   | 0.67 | 0.007 | 0.08   | 0.80   | 63         | 0.7        | 0.4        | 75        
|0.30       | 4,500   | 0.69 | 0.007 | 0.08   | 0.82   | 62         | 0.6        | 0.4        | 73        
|Sulfides:  |         |      |       |        |        |            |            |            |           
|0.15       | 132,300 | 0.50 | 0.016 | 0.14   | 0.78   | 1,330      | 42.3       | 18.4       | 2,060     
|0.20       | 119,100 | 0.54 | 0.016 | 0.15   | 0.82   | 1,280      | 38.1       | 17.6       | 1,950     
|0.25       | 106,900 | 0.58 | 0.017 | 0.16   | 0.87   | 1,230      | 36.4       | 16.6       | 1,870     
|0.30       | 96,100  | 0.61 | 0.017 | 0.16   | 0.91   | 1,170      | 32.7       | 15.6       | 1,750     

* Equivalency based on prices of $1.25/lb Cu, $18.00/lb Mo and
$8.50/oz Ag, with no applied recovery factors.

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- 23 -

Table 1-2 Rosemont Deposit Indicated Mineral
Resources

|Material / |         |      |       |        |        |            |            |            | lbs       
|---------- | ------- | ---- | ----- | ------ | ------ | ---------- | ---------- | ---------- | ----------
|Cutoff     |         |      |       | Ag     | %      | lbs Cu     | lbs Mo     | oz Ag      | CuEqv*    
|(% Cu)     | Ktons   | % Cu | % Mo  | Oz/ton | CuEqv* | (millions) | (millions) | (millions) | (millions)
|Oxides:    |         |      |       |        |        |            |            |            |           
|0.10       | 81,700  | 0.20 | -     | -      | 0.20   | 332        | -          | -          | 332       
|0.15       | 51,400  | 0.25 | -     | -      | 0.25   | 260        | -          | -          | 260       
|0.20       | 27,400  | 0.33 | -     | -      | 0.33   | 180        | -          | -          | 180       
|Mixed:     |         |      |       |        |        |            |            |            |           
|0.15       | 34,300  | 0.49 | 0.005 | 0.05   | 0.58   | 334        | 3.4        | 1.5        | 394       
|0.20       | 33,500  | 0.50 | 0.005 | 0.05   | 0.58   | 332        | 3.3        | 1.5        | 391       
|0.25       | 32,200  | 0.51 | 0.005 | 0.05   | 0.59   | 326        | 3.2        | 1.5        | 383       
|0.30       | 29,400  | 0.53 | 0.005 | 0.05   | 0.62   | 311        | 2.9        | 1.4        | 363       
|Sulfides:  |         |      |       |        |        |            |            |            |           
|0.15       | 464,500 | 0.44 | 0.014 | 0.11   | 0.68   | 4,120      | 130.1      | 52.0       | 6,340     
|0.20       | 404,700 | 0.48 | 0.015 | 0.12   | 0.74   | 3,910      | 121.4      | 49.0       | 5,990     
|0.25       | 351,200 | 0.52 | 0.016 | 0.13   | 0.80   | 3,680      | 112.4      | 45.7       | 5,610     
|0.30       | 305,200 | 0.56 | 0.016 | 0.14   | 0.84   | 3,430      | 97.7       | 42.1       | 5,120     

* Equivalency based on prices of $1.25/lb Cu, $18.00/lb Mo and
$8.50/oz Ag, with no applied recovery factors.

Table 1-3 Rosemont Deposit Combined Measured and Indicated
Mineral Resources

|Material / |         |      |       |        |        |            |            |            | lbs       
|---------- | ------- | ---- | ----- | ------ | ------ | ---------- | ---------- | ---------- | ----------
|Cutoff     |         |      |       | Ag     | %      | lbs Cu     | lbs Mo     | oz Ag      | CuEqv*    
|(% Cu)     | Ktons   | % Cu | % Mo  | Oz/ton | CuEqv* | (millions) | (millions) | (millions) | (millions)
|Oxides:    |         |      |       |        |        |            |            |            |           
|0.10       | 103,400 | 0.20 | -     | -      | 0.20   | 417        | -          | -          | 417       
|0.15       | 66,000  | 0.25 | -     | -      | 0.25   | 328        | -          | -          | 328       
|0.20       | 35,000  | 0.32 | -     | -      | 0.32   | 224        | -          | -          | 224       
|Mixed:     |         |      |       |        |        |            |            |            |           
|0.15       | 39,100  | 0.51 | 0.005 | 0.05   | 0.60   | 398        | 4.1        | 1.9        | 471       
|0.20       | 38,300  | 0.52 | 0.005 | 0.05   | 0.61   | 396        | 4.0        | 1.9        | 467       
|0.25       | 36,900  | 0.53 | 0.005 | 0.05   | 0.62   | 389        | 3.9        | 1.9        | 458       
|0.30       | 33,900  | 0.55 | 0.005 | 0.05   | 0.64   | 373        | 3.5        | 1.8        | 436       
|Sulfides:  |         |      |       |        |        |            |            |            |           
|0.15       | 596,800 | 0.46 | 0.014 | 0.12   | 0.70   | 5,440      | 172.4      | 70.4       | 8,410     
|0.20       | 523,800 | 0.50 | 0.015 | 0.13   | 0.76   | 5,190      | 159.5      | 66.6       | 7,940     
|0.25       | 458,100 | 0.54 | 0.016 | 0.14   | 0.82   | 4,910      | 148.8      | 62.3       | 7,480     
|0.30       | 401,300 | 0.57 | 0.016 | 0.14   | 0.86   | 4,600      | 130.4      | 57.7       | 6,870     

* Equivalency based on prices of $1.25/lb Cu, $18.00/lb Mo and
$8.50/oz Ag, with no applied recovery factors.

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- 24 -

Table 1-4 Rosemont Deposit Inferred Mineral Resources
(Excludes Measured & Indicated)

|Material / |         |      |       |        |        |            |            |            | lbs       
|---------- | ------- | ---- | ----- | ------ | ------ | ---------- | ---------- | ---------- | ----------
|Cutoff     |         |      |       | Ag     | %      | lbs Cu     | lbs Mo     | oz Ag      | CuEqv*    
|(% Cu)     | Ktons   | % Cu | % Mo  | Oz/ton | CuEqv* | (millions) | (millions) | (millions) | (millions)
|Oxides:    |         |      |       |        |        |            |            |            |           
|0.10       | 30,400  | 0.24 | -     | -      | 0.24   | 147        | -          | -          | 147       
|0.15       | 17,800  | 0.33 | -     | -      | 0.33   | 117        | -          | -          | 117       
|0.20       | 12,700  | 0.39 | -     | -      | 0.39   | 100        | -          | -          | 100       
|Mixed:     |         |      |       |        |        |            |            |            |           
|0.15       | 21,100  | 0.35 | 0.004 | 0.02   | 0.41   | 148        | 1.7        | 0.3        | 175       
|0.20       | 19,100  | 0.37 | 0.004 | 0.01   | 0.43   | 141        | 1.5        | 0.3        | 164       
|0.25       | 14,500  | 0.42 | 0.004 | 0.02   | 0.48   | 121        | 1.2        | 0.2        | 139       
|0.30       | 12,200  | 0.45 | 0.003 | 0.02   | 0.49   | 109        | 0.7        | 0.2        | 121       
|Sulfides:  |         |      |       |        |        |            |            |            |           
|0.15       | 208,800 | 0.38 | 0.007 | 0.06   | 0.50   | 1,600      | 29.2       | 12.1       | 2,110     
|0.20       | 160,600 | 0.45 | 0.008 | 0.07   | 0.59   | 1,440      | 25.7       | 10.9       | 1,880     
|0.25       | 133,800 | 0.49 | 0.008 | 0.08   | 0.63   | 1,320      | 21.4       | 10.0       | 1,700     
|0.30       | 105,000 | 0.56 | 0.008 | 0.09   | 0.70   | 1,170      | 16.8       | 8.9        | 1,470     

* Equivalency based on prices of $1.25/lb Cu, $18.00/lb Mo and
$8.50/oz Ag, with no applied recovery factors.

Augustas 2008 drilling campaign at the Rosemont deposit has
increased both the quantity and confidence level of the estimated mineral
resources, which presently totals about 562 million tons of measured and
indicated combined-mixed-plus sulfide mineral resources grading 0.50% Cu, 0.015%
Mo, and 0.12 ounces per ton Ag, at a 0.20% Cu cutoff. An additional 180 million
tons of inferred sulfide mineral resources are estimated at a grade of 0.44% Cu
using the same cutoff. Augustas recent drilling program was successful in
converting significant tonnages of inferred material into measured and indicated
classifications. Mineral resources that are not mineral reserves do not have
demonstrated economic viability.

In addition, geologic and metallurgical studies conducted by
Augusta have shown the potential for considering the oxide copper mineralization
that overlies the sulfide deposit. Estimated measured and indicated oxide
mineral resources total nearly 103 million tons grading 0.20% Cu, at a 0.10% Cu
cutoff. An additional 30 million tons of inferred oxide mineral resource are
estimated at a grade of 0.24% Cu, using the same cutoff.

The classification of currently inferred sulfide and oxide
mineral resources can potentially be improved with further drilling. Additional
mineral resources may be found in extensions to the north and east of the
Rosemont deposit. Mineralization also is known to occur in the Broadtop Butte,
Copper World and Peach-Elgin deposits on the Rosemont Property, which could
potentially add to the total mineral resource base of the Rosemont area.

The Rosemont deposits proximity to the topographic surface
makes it amenable to open pit mining methods. Lerchs-Grossman analyses of
economic pit limits were conducted using a variety of metal prices and operating
costs. A base case mining pit shell generated at metal prices of $1.75/lb Cu,
$15.00/lb Mo and $10.00/oz Ag and anticipated operating costs was used to design
an ultimate pit for mineral reserve estimation and subsequent mine planning. The
mineral reserve estimation work was performed by or under the direction of Mr.
Robert Fong, P. Eng., Moose Mountain Technical Services (MMTS) Principal Mining
Engineer and an independent Qualified Person under the standards set forth by NI
43-101.

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- 25 -

Rosemont mineral reserves have been estimated from only
measured and indicated mineral resources; all inferred resources have been
treated as waste. Net Smelter Returns (NSRs) were computed as a means of
aggregating the net recoverable value of the three primary metals in sulfide
rock types; only copper was used in calculating oxide NSRs. No recovery of
molybdenum and silver is projected from oxide ore leaching and only quartz
monzonite porphyry (QMP), andesite and arkose rock types were considered as
potential oxide leach ore (no NSRs were computed for other oxide rock types). An
internal NSR cutoff of $3.56/ton was used for sulfide mill ore and $2.19/ton was
used for oxide leach ore. Table 1-5 summarizes the estimated mineral reserves
for the Rosemont deposit as of the date of this report.

Table 1-5 Rosemont Mineral Reserves

|Classification  | Sulfides >= 3.56 $/ton NSR
      Cutoff | Oxides >= 2.19 $/ton NSR
|--------------- | --------------------------------------- | ------------------------
|Ktons           | NSR $/t                                 | TCu %                   
|Proven Probable | 141,999 404,339                         | 14.19 13.12             
|Total           | 546,338                                 | 13.40                   

At prices of $1.75/lb Cu, $15.00/lb Mo and $10.00/oz Ag,
combined proven and probable sulfide mineral reserves within the designed
Rosemont ultimate pit total nearly 546 million tons grading 0.45% Cu, 0.015% Mo
and 0.12 oz/ton Ag. Proven and probable oxide mineral reserves total about 70
million tons grading 0.17% Cu. The pit contains a total of about 1.85 billion
tons of material, of which 616 million tons are mineral reserves and 1.23
billion tons are waste rock, resulting in a stripping ratio of 2.0:1 (tons waste
per ton of ore). Contained metal in the sulfide (proven and probable) mineral
reserves is estimated at 4.93 billion pounds of copper, 161 million pounds of
molybdenum and 65 million ounces of silver. Contained metal in proven and
probable oxide mineral reserves is estimated at 241 million pounds of copper.
All of the mineral reserve estimates reported above are contained in the
mineral resource estimates presented in Tables 1-1 through 1-3.

The Rosemont ultimate pit contains approximately 54 million
tons of inferred sulfide mineral resources and nearly 8 million tons of inferred
oxide mineral resources that are above respective sulfide and oxide NSR cutoffs
of $3.56/ton and $2.19/ton. These resources are included in the waste estimates
presented in the previous paragraph. Inferred mineral resources are
considered too speculative geologically to have the economic considerations
applied to them that would enable them to be categorized as mineral reserves.
Inferred mineral resources have a great amount of uncertainty as to their
existence and as to whether they can be mined legally or economically. It cannot
be assumed that all or any part of inferred mineral resources will ever be
upgraded.

Mining

Six internal mining phase designs were also developed, bringing
the total number of phases to seven. A production scheduling analysis was
conducted to determine preproduction and long-term waste rock stripping rates.
This scheduling was based on a milling rate of 75,000 tons per day (tpd),
operating 365 days per year, for a total sulfide ore feed of 27.375 million tpy.
Oxide ore will be delivered to the leach pad as it is encountered during the
course of mining. Mine and plant operations will be scheduled for continuous
coverage, using two 12-hour shifts per day, seven days per week. Ramp-up
schedules were developed for preproduction stripping and sulfide ore milling
during the first year of plant operations.

---

- 26 -

Mining sequence plans were developed on a quarterly basis
through the end of Year 2 and on an annual basis through Year 7. Additional
plans include mining progress through the end of Year 10, Year 15 and Year 21
(end of mining). A production schedule was then generated from these mining
plans, indicating a project operating life of 20.1 years using only proven and
probable mineral reserves. Peak mining rates of 318,000 tpd of total material
(ore and waste) will be realized in Year 1. Typical mining rates during Years
3-6 will be 224,000 tpd of waste rock and oxide ore, or 299,000 tpd of total
material (including 75,000 tpd of sulfide ore). Minimum oxide ore will be
recovered after Year 6, and typical mining rates during Years 7 to 10 will be
299,000 tpd of ore and waste. A 15-month preproduction stripping program will be
required to open the deposit up for initial ore deliveries to the mill.

Overburden and other waste rock encountered in the course of
mining will be placed into a waste rock storage (WRS) area located to the
southeast and south of the planned open pit and into the dry stack tailings
area, where dewatered mill tailings will be placed behind waste rock containment
buttresses. The dry stack tailings area is north of the WRS area and
east-northeast of the pit. The oxide ore heap leach pad will be located between
the dry stack tailings area and the initial WRS area.

The proposed pit operations will be conducted from 50-foot-high
benches using large-scale equipment, including up to: three 12.25 -inch-diameter
rotary blasthole drills, three 70-cu-yd electric mining shovels, two 36-cu-yd
front-end loaders, twenty four 320-ton off-highway haul trucks, five 580- to
850-hp crawler dozers, three 500-hp rubber-tired dozers, three 270- to 500-hp
motor graders and three 30,000-gallon off-highway water trucks. Four rotating
crews will be used for continuous operator and maintenance coverage. Peak
manpower (and equipment) levels will occur in Years 11-15, with 45 supervisory
and technical personnel, 150 workers in mine operations and 79 in mine
maintenance, totaling 274 people.

Metallurgical Testing

The earliest existing records of metallurgical testing are from
the period 1974 - 1975, at which time grinding and flotation tests were
performed. In the first half of 2006, Augusta initiated test work to provide a
better understanding of the metallurgy of the Rosemont deposit and establish the
design criteria for the design of a process facility.

The Rosemont sulfide ore was tested to determine grinding and
flotation criteria. The test work indicates a process of crushing and grinding
the ore to 80% passing 105 micron size distribution followed by bulk flotation
to recover copper and molybdenite minerals. A molybdenite concentration circuit
to treat the bulk flotation concentrate will be able to produce a molybdenite
concentrate.

The Rosemont oxide ore was tested to determine heap leaching
design criteria. The test work indicates that a heap leach process on run of
mine ore can recover the copper into a pregnant leach solution (PLS) that can be
subsequently processed in a solvent extraction  electrowinning (SX-EW)
circuit.

Process Flowsheet

Both sulfide and oxide copper ore will be processed. Sulfide
ore will be transported from the mine to the primary crusher by off-highway
haulage trucks then conveyed to the concentrator facilities. Oxide ore will be
transported from the mine to a run of mine heap leaching facility by the
off-highway haulage trucks. Copper concentrate produced at the concentrator
facility will be loaded into highway haul trucks and transported to a
concentrate smelter and metal refinery. Molybdenum concentrate produced at the
concentrator facility will be bagged and loaded onto trucks for shipment to
market. Oxide ore will be leached with acidic solution and the leach solution
will be processed using solvent extraction electrowinning (SX-EW) technology to
produce high purity cathode copper plates (cathodes). The copper cathodes will
be loaded onto trucks for shipment to market.

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- 27 -

The process selected for recovering the copper and molybdenite
minerals can be classified as conventional. The sulfide ore will be crushed
and ground to a fine size and processed through mineral flotation circuits.

The process selected for the recovery of copper from the oxide
ore can be classified as conventional. The oxide ore will be heap leached and
the copper recovered from the leach solution using solvent extraction
electrowinning technology.

Extraction Rates

Sulfide ore metal recoveries for operating years 1 through 3
are indicated by the test work to be for copper (85%), gold (73%), and silver
(77%) in a copper concentrate, and molybdenum (72%) in a molybdenite
concentrate.

Sulfide ore metal recoveries for operating years 4 through 7
are indicated by the test work to be for copper (83%), gold (73%), and silver
(76%) in a copper concentrate, and molybdenum (65%) in a molybdenite
concentrate.

Sulfide ore metal recoveries for subsequent years are indicated
by the test work to be for copper (84%), gold (73%), and silver (78%) in a
copper concentrate, and molybdenum (56%) in a molybdenite concentrate.

Oxide ore copper recovery is indicated by the test work to be
65%.

Process Reagents

Reagent consumption rates for the full scale plant operation
have been estimated from the test results. The reagents that will be used in the
sulfide circuit are considered to be conventional. Consumption rates for
collectors is estimated to be about 0.164 lbs/ton of sulfide ore, lime about
1.797 lbs/ton, and modifiers, frothers and other about 0.166 lbs/ton. The
molybdenite recovery circuit will consume about 0.2125 lbs/ton of sulfide ore in
modifiers, collectors, and frothers.

In the oxide ore leaching circuit, sulfuric acid consumption is
estimated to be 30.0 lbs/ton ore. In the SX-EW circuit, extractant consumption
is estimated to be 0.0002 lbs/lb cathode copper, diluent at 0.001 lbs/lb, all
other electrowinning additives 0.0107 lbs/lb, and solution filtering additives
at 0.08 lbs/lb.

Power

The power supply for the Rosemont mine and process facilities
will be administered by Tucson Electric Power (TEP) under a shared service
agreement with TRICO, a local cooperative. The estimated connected load for the
project is 139 MW, and will be supplied by a minimum of a 138 kV line to site.
The estimated operating load for the project is approximately 106 MW.

The Option D proposed by Rosemont, accesses initial
construction power from an existing 46 kV line at the Greaterville substation
(4.5 miles new line).

For the higher power load required to operate the mine, new
construction of 16 miles of 138 kV line is required. The first 4 miles upgrade
the TEP transmission system to a new Rosemont substation at or near Wilmot
Junction (Section 25). These 4 miles provide a system upgrade to allow a cross
tie between the Vail and South Substations. Either South or Vail could provide
source to the new Rosemont Substation. From Rosemont substation, a new 12 mile
long radial 138 kV line would be built. This radial line is assumed retained by
Rosemont. This Option D was developed by KR Saline engineers of Arizona to
efficiently utilize planned and scheduled system upgrades as included in long
term planning documents on file with the Arizona Corporation Commission.

---

- 28 -

The Arizona State Line-Siting-Committee has established the
process to review new power line routes for Rosemont, and the preferred routing
and permit application is underway.

Water

The fresh water requirements for the Rosemont facilities are
about 5,000 acre-feet per year with a peak demand of 5,000 gallons per minute
(gpm) and an average demand of 3,370 gpm. All gallons in this report are United
States gallons. Water will come from wells located west of the Santa Rita
Mountains and will be pumped to the fresh water and fire water storage tank
located at the Rosemont site.

The daily usage for potable water is about 17,000 gallons per
day, fresh water makeup is 4.8 million gallons per day, and the recycle process
water is 37 million gallons per day. There is also a fire water distribution
system throughout the mine site.

Augusta has committed to recharging the Santa Cruz aquifer with
available Central Arizona Project (CAP) water.

A summary description of the fresh water system is included in
Section 1.25.7 of the 2009 Feasibility Study.

Permits

Permitting for the Rosemont Project involves federal approvals
and requires compliance with the NEPA. This in turn requires an EIS and
compliance with the Endangered Species Act (ESA) and the National Historic
Preservation Act (NHPA). A MPO was submitted to the US Forest Service on July
11, 2007 to initiate the EIS and start the permitting process. Major federal
permits required to construct and begin operation of the Rosemont Project
includes a Clean Water Act (CWA) Section 404 permit for discharge of fill
material to onsite washes. Major state permits include an aquifer protection
permit, a 401 Certification, and an Arizona Pollution Discharge Elimination
System (AZPDES) general storm water permit. The only major local permit required
is a Pima County Clean Air Act (CAA) Title V air quality permit. Other permits
which do not affect the timeline for project permitting and subsequent start up
include explosives permits, nuclear instrumentation licenses, hazardous waste
identification, tracking numbers and spill control plans. A list of permits is
provided in Section 1.25.8 of the 2009 Feasibility Study.

Operating Costs

The mine operating costs were derived from equipment hours and
cycle times developed by Moose Mountain from their Mine Plan. Rebuild costs for
major equipment were generated from vendor supplied component replacement
schedules and URS Washington Mining Divisions data base for similar projects
and equipment. Mining costs supplied by others were checked by URS Washington
Division who built the estimate and was the QP. The average life of mine
operating costs for the mining operation is $0.83 per ton mined. These costs
include: clearing of vegetation, removal of topsoil, drilling, blasting,
loading, hauling, road and dump maintenance, regrading, mine operations
supervision, craft labor and subcontractor costs.

Mill process operating costs in Year 2 average $3.34/ton of
mill ore which includes crushing and conveying, grinding and classification,
flotation and regrind, concentrate thickening, filtration and dewatering,
tailings disposal and mill ancillary services. In addition, these operating
costs are broken into the major categories of labor, power, reagents,
maintenance, supplies and services.

Operating costs for the SX-EW process in Year 2 average $0.92/
lb. of cathode copper which includes heap leach pad, solvent extraction, tank
farm, electrowinning and SX-EW ancillary services. In addition, these operating costs are broken into the major categories of labor,
power, reagents, maintenance, supplies and services.

---

- 29 -

The average operating cost for the supporting facilities and
general administrative expenses in Year 2 is $0.27/ton of sulfide ore. The
supporting facilities include laboratory, safety and environmental, accounting,
human resources, security and the general managers office.

The overall site direct operating cost estimate by cost center
in Year 2 is shown in Table 1-6 below. All costs are based on estimates in the
fourth quarter 2008 with an accuracy of ± 10%.

Table 1-6 Summary of Operating Costs

Based on Year 2 of Operations

|                                 | Annual Cost ($000)
|-------------------------------- | ------------------
|Mining                           | 70,141            
|Mill Operations                  | 91,452            
|SX-EW Operations                 | 18,398            
|Support Facilities and
      G&A | 8,974             
|                                 |                   
|Total                            | 188,965           

Capital Cost Estimate

The total capital cost estimate to design, construct and
commission the Rosemont facilities is estimated to be $897 million for the
combined sulfide and oxide plant. The estimate includes the direct field cost
for constructing the project at $713 million as well as $185 million for the
indirect costs associated with the design engineering, procurement and
construction, commissioning, spare parts, contingency and Owners cost. An
incremental cost for the oxide plant was estimated to be $65 million with $54
million for the direct costs and $11 million for indirect costs and are based on
fourth quarter 2008 cost estimates with an accuracy of ± 15% with no allowance
provided for escalation, interest, foreign currency, hedging, or financing
during construction.

Financial Analysis

The Rosemont Project economics were done using a discounted
cash flow model. The study evaluated a sulfide concentrate plant with a heap
leach SX-EW plant for the treatment of the oxide copper reserves. Costs are in
constant fourth quarter 2008 US dollars with no provisions for cost escalation.
The financial indicators examined for the project included the Net Present Value
(NPV), Internal Rate of Return (IRR) and payback period (time in years to
recapture the initial capital investment). Annual cash flow projections were
estimated over the life of the mine based on capital expenditures, production
costs, transportation and treatment charges and sales revenue. The life of the
mine is 21 years.

The sales revenue is based on the production of three
commodities: copper, molybdenum and silver. Gold is also present in the copper
concentrates in the form of a saleable by-product credit. The estimates of
capital expenditures and site production costs have been developed specifically
for this project.

---

- 30 -

Metal prices used in the evaluation are listed in Table
1-7.

Table 1-7 Base Case and Historical Metals Prices

|           | 60/40 WEIGHTEDAVERAGE * | 3 YEAR HISTORICALAVERAGE
|---------- | ----------------------- | ------------------------
|COPPER     | $ 2.47 / POUND          | $ 3.14 / POUND          
|MOLYBDENUM | $22.70 / POUND          | $29.05 / POUND          
|SILVER     | $12.40 / OUNCE          | $13.32 / OUNCE          
|GOLD       | $784.65 / OUNCE         | $723.48 / OUNCE         

*60/40 weighted average of the 36 month historic price and
the 24 month futures price forecast

In addition to the above metal sales price cases, a case of
long term metal prices was also evaluated. Long term metal prices were assumed
at $1.85/lb Cu, $15.00/lb Mo, $12.00/oz Ag and $750.00/oz Au.

Table 1-8 Long Term Metals Prices

|Copper     | $
      1.85/lb 
|---------- | ----------------
|Molybdenum | $
      15.00/lb
|Silver     | $
      12.00/oz
|Gold       | $750.00/oz      

The after tax financial results for the three metal pricing
scenarios are shown in Table 1-9.

Table 1-9 Financial Indicators (After Tax)

|              | Base Case (60/40 split) | Historical 36 Months | Long Term Metal Prices
|------------- | ----------------------- | -------------------- | ----------------------
|NPV 0%        | 4,850.0                 | 6,999.9              | 2,715.0               
|NPV 5%        | 2,417.6                 | 3,628.9              | 1,200.3               
|NPV 10%       | 1,254.2                 | 2,006.2              | 488.4                 
|IRR           | 28.5%                   | 37.5%                | 17.8%                 
|Payback Years | 3.1                     | 2.3                  | 5.0                   

Authors Conclusions

The after-tax IRR is above the Owners project criteria of 15%,
therefore the project should continue to advance with basic engineering and
permitting. In the meantime, the copper price should stabilize somewhat, as it
is presently below the $1.85/lb price used in this study, although it is not
below either the last three (3) years historical plus two (2) years futures
average or the three (3) year historical average. Using the spot prices of end
of month December 2008 of $1.36/lb Cu, $11.00/lb Mo, $10.79/oz Ag, $869.75/oz Au
yields a after-tax IRR of 7.7% .

The downward trend in capital equipment and commodity cost that
started in October 2008 is not reflected herein. It may result in even more
favorable economics.

---

- 31 -

Authors Recommendation

The project should proceed with basic engineering and
permitting. While that is ongoing, the copper price trend should become more
evident following the financial market turmoil of 2008.

ITEM 5: DIVIDENDS

The Company has not paid any cash dividends on its common
shares and has no present intention of doing so, as it anticipates that all
available funds will be utilized to finance exploration, development and future
investment opportunities. There are no restrictions that could prevent the
Company from paying dividends.

ITEM 6: DESCRIPTION OF CAPITAL STRUCTURE

The Companys authorized share capital consists of an unlimited
number of common shares without par value of which as at December 31, 2010 there
were 141,928,493 common shares issued and outstanding. Each common share of the
Company has the following rights, privileges, restrictions and conditions
attached thereto:

| | (i)   | to vote at meetings of shareholders, except meetings at
      which only holders of a specified class of shares are entitled to
    vote:                                                                                                                                     
| | ----- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
| |       |                                                                                                                                                                                                                                                                               
| | (ii)  | to share equally, share for share, in any dividends
      declared by the Company; and                                                                                                                                                                                        
| |       |                                                                                                                                                                                                                                                                               
| | (iii) | subject to the rights, privileges, restrictions and
      conditions attaching to any other class of shares of the Company, to share
      equally, share for share in the remaining property of the company upon
      liquidation, dissolution or winding-up of the
Company.

The Articles and By-laws of the Company contain no restrictions
on the right to hold or vote the Companys common shares.

ITEM 7: MARKET FOR SECURITIES

Trading Price and Volume

The common shares of the Company currently trade on the TSX and
NYSE Amex. The table below presents the high and low sale prices for the common
shares of the Company and the volume on a monthly basis for the TSX and NYSE
Amex.

|High and Low Prices and Volume on a monthly
      basis for Fiscal 2010
|-----------------------------------------------------------------------
|                                                                       
|Period                                                                 
|December 2010                                                          
|November 2010                                                          
|October 2010                                                           

---

- 32 -

|High and Low Prices and Volume on a monthly
      basis for Fiscal 2010
|-----------------------------------------------------------------------
|                                                                       
|Period                                                                 
|September 2010                                                         
|August 2010                                                            
|July 2010                                                              
|June 2010                                                              
|May 2010                                                               
|April 2010                                                             
|March 2010                                                             
|February 2010                                                          
|January 2010                                                           

Prior Sales

At the date of this AIF Augusta had outstanding 8,166,237 stock
options, 1,791,700 warrants, and 295,002 restricted share units, which in
aggregate may result in the issuance of 10,252,939 common shares. In respect of
the stock options, 4,423,550 are vested. The outstanding stock options are
exercisable at between Cdn$0.68 and Cdn$4.97 and expire between April 11, 2011
and December 3, 2018. The 1,791,700 warrants were issued in connection with the
Red Kite transaction and are exercisable until April 22, 2013 at an exercise
price of Cdn$3.90.

---

- 33 -

ITEM 8: DIRECTORS AND OFFICERS

|Name, Municipality ofResidence                                   | Position with the Company;Present and Principal Occupation Duringthe Last
      Five Years                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             | Date FirstAppointed asOfficer | DateAppointed asDirector
|---------------------------------------------------------------- | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | ----------------------------- | ------------------------
|Timothy C. Baker(2)(3) Toronto, ON,
      Canada                 | Directorof the Company;
      Executive VP and  Chief Operating Officer of Kinross Gold Corporation
      between June 2006 and December 2010. Executive General Manager of Placer
      Dome Chile between January 2005 and June 2006. Between July 2003 and
      December 2004 he was Managing Director, Placer Dome Tanzania. Kinross is a
      gold mining company with mines and projects in the US, Brazil, Chile,
      Ecuador and Russia.                                                                                                                                                                                   | Not Applicable                | September 11, 2008      
|Donald B. ClarkRichmond, BC, Canada                              | Directorof the Company;
      VP 
      Administration between May 2006 and January 2010. CFO of the
      Company between June 2004 and July 2006; Director of Sargold Resource
      Corporation between May 1998 to October 2007; CFO of Sargold between May
      2004 and July 2006; President and CEO of Wildcat Silver Corporation
      between February 2006 and July 2008 and Director since February, 2006;
      President of Ventana Gold Corp. between March 2006 and July 2008 and
      Director between March 2006 and October 2009. Wildcat and Ventana are all
      mineral exploration and development companies. | June 21, 1996                 | February 1, 1996        
|Gil ClausenDenver, CO, USA                                       | President, CEO and Directorof the Company;                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             | April 18, 2005                | March 28, 2005          
|W. Durand Eppler(1)(2) (3)Denver, CO, USA                        | Lead Directorof the
      Company; Founding partner of New World Advisors, LLC (since August 2004)
      and Sierra Partners, LLC (since May 2005), CEO and Director of Coal
      International, Plc. between July 2005 and August 2008. Both Sierra
      Partners and New World Advisors provide strategic and business advisory
      services to global resource companies.                                                                                                                                                                                                                                                       | Not Applicable                | June 15, 2005           
|Christopher M.H. Jennings(2)(3)Grand Cayman, Cayman Islands, BWI | Directorof the Company;
      Non-executive Chairman of SouthernEra Diamonds Inc., a company engaged in
      diamond exploration in Canada, South Africa, Gabon, Australia and the
      Democratic Republic of Congo between 1992  2007; Director of Southern
      Platinum Corp., a mineral exploration and development company, between
      September 2004  June 2005;                                                                                                                                                                                                                                                        | Not Applicable                | April 2002              

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- 34 -

|Name, Municipality of Residence                     | Position with the Company;
      Present and Principal Occupation During the Last Five
      Years                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              | Date First Appointed as
      Officer | Date Appointed as
      Director
|--------------------------------------------------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | ------------------------------------- | --------------------------------
|Michael A. Steeves(1)(2) Richmond,
      BC, Canada | Directorof the Company; Director of
      Zazu Metals Corporation since since November 2007 and President and Chief
      Operating Officer between November 2007 and August 2009. Consultant to the
      base metal industry between August 2005 to November 2007.                                                                                                                                                                                                                                                                                                                                                                                                            | Not Applicable                        | June 8, 1999                    
|Robert P. Wares(1)(3) Montreal, QC,
      Canada    | Directorof the Company; Executive VP
      and Chief Operating Officer of Osisko Exploration Ltd. (Osisko) since
      early 2006. He was President of Osisko from September 1998 to early 2006.
      Osisko is a Canadian mining development company holding interests in
      several properties located in Quebec, Canada and Brazil, South America.                                                                                                                                                                                                                                                                                                                     | Not Applicable                        | April 26, 1999                  
|Richard W. Warke West Vancouver, BC, Canada         | Executive Chairmanof the Company;
      Chairman of the Company between April 2005 and July 2008; VP Corporate
      Development of the Company between May 2006 and July 2008; President of
      the Company between April 1999 to April 2005; Chairman of Wildcat Silver
      Corporation since July 2008; Chairman of Ventana Gold Corp. since July
      2008 and CEO between July 2008 and August 2009; CEO and Chairman of
      Sargold Resource Corporation between May 1998 to October 2007 and
      President between May 1998 and December 2006 and May 2007 and October
      2007. Wildcat and Ventana are mineral exploration and development
      companies. | February 1, 1996                      | February 1, 1996                
|Raghunath N. Reddy Denver, CO, USA                  | Senior VP and CFOfor the Company; VP
      Finance for the Company between November 2007 and November 2008; Director
      of Finance, URS Washington Division (formerly Washington Group
      International, Inc.), between July 1998 and November 2007.                                                                                                                                                                                                                                                                                                                                                                                                                      | November 26, 2007                     | Not Applicable                  
|James A. Sturgess Centennial, CO, USA               | Senior VP Corporate Development and
        Government Affairsfor the Company; VP Projects and Environment for
      the Company between September 2005 and February 2008; Senior Associate for
      Stantec Consulting Inc., an environmental consulting firm, between
      December 2000 and October 2005.                                                                                                                                                                                                                                                                                                                                                                  | October 1, 2005                       | Not Applicable                  

---

- 35 -

|Name, Municipality of Residence             | Position with the Company;
      Present and Principal Occupation During the Last Five
      Years                                                                                                                                                                                                                                                                                                                                                                                            | Date First Appointed as
      Officer | Date Appointed as
      Director
|------------------------------------------- | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | ------------------------------------- | --------------------------------
|Rodney O. Pace Tucson, AZ, USA              | Executive VP and Chief
      Operating Officer of the Company and President and CEO of Rosemont
      Copper Company. VP Operations and General Manager of Rosemont Copper
      Company between January 2008 and May 2009; Consultant to the Mining
      Industry between September 2006 and December 2007; VP North American
      Operations, URS Washington Division (formerly Washington Group
      International, Inc.)  Mining Division between January 2002 and August
      2006. | January 1, 2008                       | Not Applicable                  
|Letitia Cornacchia 
    Toronto, ON, Canada | VP, Investor Relations and
      Corporate Communicationssince September 2010; Director of
      Investor Relations at Yamana Gold. between December 2007 and September
      2010. Finance and Investor Relations TELUS between May 2002 and December
      2007                                                                                                                                                                                                                             | September 27, 2010                    | Not Applicable                  
|Gordon Jang Vancouver, BC, Canada           | VP, Corporate Controllerof the Company; Corporate Controller for EuroZinc/Lundin Mining
      Corporation between March 2005 and February 2009; Corporate Controller for
      Pan American Silver Corp. between March 1994 and March 2005.                                                                                                                                                                                                                                                   | March 1, 2009                         | Not Applicable                  
|Charles Magolske Chicago, Ill, USA          | VP, Corporate Development
      and Marketingof the Company since November 
      2010. Vice
      President of Business Development and Strategy for FreightCar America
      between 2007 through all of 2009 (employed at FreightCar America between
      2002 to 2009, initially as Managing Director  International from 2002 to
      2006 until promoted to VP Business Development);                                                                                                | September 15, 2010                    | Not Applicable                  
|Lance C. Newman Highlands Ranch, CO, USA    | VP, Project Developmentof
      the Company; VP Metallurgical Operations for the Company between August
      2006 and November 2007; Refinery Manager for Stillwater Mining Company
      between March 1997 and August 2006.                                                                                                                                                                                                                                                                | August 2, 2006                        | Not Applicable                  
|Purni Parikh Burnaby, BC, Canada            | VP, Corporate Secretaryfor the Company; Corporate Secretary for Wildcat Silver Corporation
      since February 2010 and previously between November 2006 and February 2009
      and for Ventana Gold Corporation between February 2010 and March 2011 and
      between April 2007 and February 2009 and for Sargold Resource Corp.
      between June 2000 and October 2007. Wildcat, Ventana and Sargold are or
      were mineral exploration companies.                                 | July 1999                             | Not Applicable                  

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- 36 -

|Name, Municipality of Residence | Position with the Company;
      Present and Principal Occupation During the Last Five
      Years                                                                                                    | Date First Appointed as
      Officer | Date Appointed as
      Director
|------------------------------- | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | ------------------------------------- | --------------------------------
|Mark G. Stevens Denver, CO, USA | VP Explorationof the
      Company; Chief Geologist for the Company between August 2006 and November
      2008; Chief Geologist with Pincock, Allen & Hold between March 1988
      and August 2006. | December 1, 2008                      | Not Applicable                  

|(1) | Member of the Audit Committee                                    
|--- | -----------------------------------------------------------------
|(2) | Member of the Compensation Committee                             
|(3) | Member of the Nominating and Corporate Governance
      Committee

Directors are elected at each annual meeting of shareholders
and serve until the next annual meeting or until their successors are elected or
appointed.

As at the date of this AIF, the directors and officers of the
Company, as a group owned, directly or indirectly, or exercised control or
direction over 18,190,769 common shares representing 12.82% of the total number
of common shares outstanding.

Cease Trade Orders and Bankruptcies

Except for as provided below, no director or executive officer
of the Company is, as at the date of the AIF, or was within 10 years before the
date of the AIF, a director, chief executive officer or chief financial officer
of any company (including the Company), that (a) was subject to an order that
was issued while the director or executive officer was acting in the capacity as
director, chief executive officer or chief financial officer, or (b) was subject
to an order that was issued after the director or executive officer ceased to be
a director, chief executive officer or chief financial officer and which
resulted from an event that occurred while that person was acting in the
capacity as director, chief executive officer or chief financial officer:

Cybercom Systems Inc. (Cybercom) was issued a cease trade
order on October 23, 2002 due to failure to file comparative annual financial
statements and quarterly report for the period ended January 31, 2002.
Cybercoms failure to file the above resulted from its inability to pay filing
fees associated with such filing due to a lack of funding. Cybercom is currently
inactive and remains under cease trade order. Richard Warke, Executive Chairman
of the Company and Donald Clark, directors of the Company,  were at the
time the order was issued directors of Cybercom.

Wildcat Silver Corporation (Wildcat) requested and received
notice from the British Columbia Securities Commission of the issuance of a
management cease trade order (the MCTO) on October 30, 2007 in connection with
the late filing of its annual audited consolidated financial statements for the
fiscal year ending June 30, 2007. Wildcats failure to make the filing within
the required time frame was due to the need to clarify potential foreign tax
obligations relating to an acquisition it made. The required filing was made on
January 7, 2008 and the MCTO was revoked on January 8, 2008. Donald Clark,
Michael Steeves, and Robert Wares, directors of the Company,  were at the
time the order was issued directors of Wildcat.

Personal Bankruptcies

No director or executive officer of the Company, or a
shareholder holding a sufficient number of securities of the Company to affect
materially the control of the Company, (a)is, at the date of this AIF, or has
been within the 10 years before the date of this AIF, a director or executive
officer of any company (including the Company) that while that person was acting
in that capacity or within a year of that person ceasing to act in that capacity
became bankrupt, made a proposal under any legislation relating to bankruptcy or
insolvency, or was subject to or instituted any proceedings, arrangement or
compromise with creditors, or had a receiver, receiver manager or trustee
appointed to hold the assets of the director or officer; or (b) has, within the
10 years before the date of the AIF, become bankrupt, made a proposal under any
legislation relating to bankruptcy or insolvency, or become subject to or
instituted any proceedings, arrangement or compromise with creditors, or had a
receiver, receiver manager or trustee appointed to hold the assets of the
director, executive officer or shareholder.

---

- 37 -

Penalties or Sanctions

No director or executive officer of the Company, or a
shareholder holding a sufficient number of securities of the Company to affect
materially the control of the Company, has (a) been subject to any penalties or
sanctions imposed by a court relating to securities legislation or by a
securities regulatory authority or has entered into a settlement agreement, with
a securities regulatory authority; or (b) been subject to any other penalties or
sanctions imposed by a court or regulatory body that would likely be considered
important to a reasonable investor in making an investment decision.

Conflicts of Interest

Directors and/or officers of the Company serve as directors
and/or officers of other public and private companies and devote a portion of
their time to manage other business interests. This may result in certain
conflicts of interest. The laws of Canada require the directors and officers to
act honestly, in good faith, and in the best interests of the Company and its
shareholders. Please refer to the subheading entitled Risk Factors  Augustas
officers and directors may have potential conflicts of interest under Item 4 of
this AIF for further details.

ITEM 9:INTEREST OF MANAGEMENT AND OTHERS IN MATERIAL
TRANSACTIONS

Within the three most recently completed financial years ended
December 31, 2010 and up to the date of this AIF, none of the following (a) a
director or executive officer of the Company; (b) a person or company that is
direct or indirect beneficial owner of, or who exercises control or direction
over, more than 10% of any class or series of outstanding voting securities of
the Company; and (c) an associate or affiliate of any of the persons or
companies referred to in the above paragraphs (a) or (b), has any material
interest, direct or indirect, in any transaction that has materially affected or
will materially affect the Company other than as stated in the Companys annual
audited financial statements for the year ending December 31, 2010 which is
incorporated here by reference and available on SEDAR at www.sedar.com.

Legal Proceedings and Regulatory Actions

In January 2009 Augusta reached an agreement with ASARCO that
fully and finally resolved the lawsuit ASARCO filed against Augusta and other
defendants on August 8, 2007 in the ASARCO Chapter 11 bankruptcy proceeding
pending in the Southern District of Texas, Corpus Christi Division. The
proceeding sought the return of the Rosemont Property, which Augusta acquired in
2006 from a real-estate development company that had purchased the property from
ASARCO in 2004. On March 26, 2009, the US Bankruptcy Court for the Southern
District of Texas Corpus Christi Division issued an Order of Dismissal pursuant
to which all claims pending between ASARCO and the Company were dismissed with
prejudice with each party to bear its own fees, costs and expenses.

Pursuant to the settlement agreement, Augusta paid ASARCO the
sum of $250,000 cash, in addition to sums the other defendants paid. Once
commercial mine operations commence at the Rosemont Property, Augusta will pay
ASARCO certain specified annual production payments, without interest, over the
course of eight years. These payments will come solely out of the net profits of
mine operations and will not, in any year, exceed 25% of net profits. In the
settlement, Augusta has the right of a pre-production, pre-payment option for
these annual payments at the net present value of the aggregate annual payments,
using an agreed 18% discount rate. It may elect to exercise this option at any time
up to and during mine production. On September 24, 2010 the Company exercised
its pre-production, pre-payment option to settle the Companys obligation from
the ASARCO settlement agreement with a one-time payment of $2.68 million.

---

- 38 -

ITEM 10: TRANSFER AGENTS AND REGISTRARS

The registrar and transfer agent for the Company is
Computershare Investor Services Inc. located at 510 Burrard Street - 3rd Floor,
Vancouver, B.C. V6C 3B9, Canada with co-agent offices in Toronto, Ontario and
Glendale, Colorado.

ITEM 11: MATERIAL CONTRACTS

The only material contracts entered into by the Company during
the year ended December 31, 2010 or since such time or before such time that are
still in effect, other than in the ordinary course of business, are as
follows:

|(a) | Precious Metals Purchase Agreement between the Company,
      Augusta Resource (Barbados) SRL, Silver Wheaton (Cayman) Ltd. and Silver
      Wheaton Corp. dated as of February 10, 2010 described under the heading
      General Development of the Business;
|--- | -----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
|    |                                                                                                                                                                                                                                                                  
|(b) | Joint Venture Agreement made between Rosemont Copper
      Company and United Copper & Moly LLC dated September 16, 2010
      described under the heading General Development of the Business;
    and                                                        
|    |                                                                                                                                                                                                                                                                  
|(c) | Earn-In Agreement made between Rosemont Copper Company
      and United Copper & Moly LLC in respect of the Rosemont Project, Pima
      County Arizona made as of September 16, 2010 described under the heading
      General Development of the Business;   

Each of these contracts is available under the Companys
profile on SEDAR at www.sedar.com.

ITEM 12: INTEREST OF EXPERTS

Name of Experts

The following are names of persons or companies (a) that have
prepared or certified a statement, report or valuation described or included in
a filing, or referred to in a filing made under National Instrument 51-102 by
the Company during, or relating to, the Companys most recently completed
financial year; and (b) whose profession or business gives authority to the
statement, report or valuation made by the person or company:

| | (i)   | Ernst & Young of 23rd Floor, 700 West Georgia Street,
      Vancouver BC, V7Y 1C7, the Companys independent auditors provided an
      auditors report dated March 29, 2011, in respect of the Companys
      financial statements for the years ended December 31, 2009 and
  2008.                   
| | ----- | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
| |       |                                                                                                                                                                                                                                                                                                           
| | (ii)  | Dr. Conrad Huss, P.E., of M3 Engineering & Technology
      Corporation was the principal author responsible for the overall
      preparation of the NI 43-101 Technical Report for the Rosemont Copper
      Project Updated Feasibility Study, Pima County, Arizona, USA, dated
      January 14, 2009;
| |       |                                                                                                                                                                                                                                                                                                           
| | (iii) | Mr. William L. Rose, P.E. of WLR Consulting Inc., was a
      co- author of the NI 43-101 Technical Report for the Rosemont Copper
      Project Updated Feasibility Study, Pima County, Arizona, USA, dated
      January 14, 2008;                                                                      

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- 39 -

| | (iv) | Mr John Ajie, P.E. of URS Washington Division, was a co-
      author of the NI 43-101 Technical Report for the Rosemont Copper Project
      Updated Feasibility Study, Pima County, Arizona, USA, dated January 14,
      2008;                         
| | ---- | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
| |      |                                                                                                                                                                                                                                                           
| | (v)  | Mr. Thomas L. Drielick, P.E. of M3 Engineering &
      Technology Corporation was a co- author of the NI 43-101 Technical Report
      for the Rosemont Copper Project Updated Feasibility Study, Pima County,
      Arizona, USA, dated January 14, 2008;
| |      |                                                                                                                                                                                                                                                           
| | (vi) | Mr. Robert Fong, P.E. of Moose Mountain Technical
      Services was a co- author of the NI 43-101 Technical Report for the
      Rosemont Copper Project Updated Feasibility Study, Pima County, Arizona,
      USA, dated January 14, 2008.             

Interests of Experts

To the best of the Companys knowledge, the experts named under
this Item 12 did not have any registered or beneficial interest, direct or
indirect, in any securities or other property of the Company or one of its
associates or affiliates, when the experts prepared their respective reports,
and no securities or other property of the Company or one of its associates or
affiliates were subsequently received or to be received by such experts.

No person or director, officer or employee of a company named
under this Item 12 is expected to be elected, appointed or employed as a
director, officer or employee of Augusta or any associate or affiliate of
Augusta.

ITEM 13: AUDIT COMMITTEE INFORMATION

Audit Committee Information

Under MI 52-110 companies are required to provide disclosure
with respect to their audit committee including the text of the audit
committees charter, the composition of the audit committee and the fees paid to
the external auditor. The text of the Companys audit committees charter is
attached as Appendix 1 to this AIF.

The Companys current audit committee is comprised of the
following directors, Robert P. Wares, Michael A. Steeves (Chair), and W. Durand
Eppler. All are independent and financially literate as defined in Multilateral
Instrument 52-110 (MI 52-110).

The education and experience of each Audit Committee member
that is relevant to the performance of his responsibilities as a member of the
Audit Committee are as follows:

Mr. Steeves, the Chairman of the Audit Committee, is a
Chartered Financial Analyst, earned at the University of Virginia, and also
earned a MSC from the University of Manitoba. He has had a long career in the
mining industry as Senior Mining Analyst for Loewen Ondaatje McCutcheon and
Scotia McLeod for six years and latterly as VP / Director Investor Relations for
various mining/resource companies for fifteen years, including Glamis Gold Ltd.
from 2002 to 2005. From November 2007 to August 2009, Mr. Steeves was President
and Chief Operating Officer and Director of Zazu Metals Corporation a TSX listed
company. Mr. Steeves remains as a director of Zazu Metals. Mr. Steeves also
serves on the board and audit committee of Ventana Gold Corp.

Mr. Wares earned a BSc at McGill University and a P. Geo from
the Quebec Order of Geologists. He has been Executive VP and Chief Operating
Officer of Osisko Exploration Ltd. (Osisko) since early 2006 prior to which he
was President of Osisko since September 1998. Osisko is listed on the TSX. Mr.
Wares also serves on the board and audit committee of Wildcat.

---

- 40 -

Mr. Eppler is currently CEO of Sierra Partners, LLC and
president of New World Advisors, both of which provide strategic and business
advisory services to global resource companies. Previously, he was a VP of
Newmont Mining Corp. from 1995 to 2004. He was VP Corporate Planning from 1995
to 1998; President of Newmont Indonesia from 1998 to 2001; VP Corporate
Development from 2001 to 2002; and VP Newmont Capital, Ltd. from 2002 to 2004.
 He earned
a BA from Middlebury College and a MS from the Colorado School of Mines. He
serves as a director of Vista Gold Corporation and Golden Minerals Company.

Pre-approval Policy

The Audit Committee nominates and engages the independent
auditors to audit the financial statements and approves all audit, audit-related
services, tax services and other services provided by the Companys external
auditors. Any services provided by the Companys external auditors that are not
specifically included within the scope of the audit must be pre-approved by the
audit committee prior to any engagement. The Chairman of the audit committee is
permitted to pre-approve work undertaken by the Companys external auditors
between audit committee meetings of up to C$25,000 per engagement.

External Auditor Service Fees

The aggregate fees billed in Canadian dollars by the Companys
external auditors in each of the last two fiscal years are as follows:

|Financial Year Ending | Audit Fees(1) | Audit related Fees(2) | Tax Fees(3) | All Other Fees(4)
|--------------------- | ------------- | --------------------- | ----------- | -----------------
|2009                  | $259,500      | $60,000               | $3,330      | $125,827         
|2010                  | $262,910      | $93,500               | $69,120     | $57,850          

|(1) | The aggregate audit fees billed and accrued.                                                                                                                                                                                              
|--- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
|(2) | The aggregate fees billed for audit related services that
      are reasonably related to the performance of the audit or review of the
      Companys financial statements, which are not included under the heading
      Audit Fees.
|(3) | Corporate income tax returns, tax advisory and planning fees.                                                                                                                                                                             
|(4) | Prospectus and IFRS related work.                                                                                                                                                                                                         

ITEM 14: ADDITIONAL INFORMATION

Additional information, including directors' and officers'
remuneration and indebtedness, principal holders of the Company's securities,
options to purchase securities and interests of insiders in material
transactions, where applicable, is contained in the Company's Information
Circular for its most recent annual meeting of shareholders that involved the
election of directors, and additional financial information is provided in the
Company's comparative financial statements and MD&A for its most recently
completed financial year is available on SEDAR at www.sedar.com.

In addition, copies of documents, may be obtained from the
Company by contacting the Company at Suite 400  837 West Hastings Street,
Vancouver, BC, V6C 3N6, telephone (604) 687-1717, fax (604) 687-1715.

---

APPENDIX 1

Augusta Resource Corporation(the Corporation)

Audit Committee Charter

ARTICLE 1OVERALL PURPOSE/OBJECTIVES

|1.1 | The Audit Committee (the committee) will provide
      independent review and oversight of the Corporations financial reporting
      process, the system of internal control and management of financial risks,
      and the audit process, including the selection, recommendation, oversight
      and compensation of the Corporations external auditors. The committee
      will also assist the board of directors of the Corporation (the Board)
      in fulfilling its responsibilities in reviewing the Corporation's process
      for monitoring compliance with laws and regulations and its own code of
      business conduct. In performing its duties, the committee will maintain
      effective working relationships with the Board, management, and the
      external auditors and monitor the independence of the external auditors.
      The committee will also be responsible for reviewing the Corporations
      financial strategies, its financing plans and its use of the equity and
      debt markets.
|--- | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
|    |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    
|1.2 | To perform his or her role effectively, each committee
      member will obtain an understanding of the responsibilities of committee
      membership as well as the Corporations business, operations and
    risks.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            

ARTICLE 2AUTHORITY

|2.1 | The Board authorizes the committee, within the scope of
      its responsibilities, to seek any information it requires from any
      employee and from external parties, to retain outside legal or
      professional counsel and other experts and to ensure the attendance of
      company officers at meetings as appropriate. The committee will have the
      authority to engage such independent counsel and other advisers as it
      deems necessary to carry out its duties. The committee will also have
      authority to obtain advice and assistance from any officer or employee of
      the Corporation.
|--- | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

ARTICLE 3FUNDING

|3.1 | The Corporation will provide appropriate funding, as
      determined by the committee, for payment of:
|--- | -------------------------------------------------------------------------------------------------------

| | (a) | compensation to the Corporation's external auditors, as
      well as any other accounting firm engaged to perform audit, review,
      financial and accounting advisory services for the Corporation;
| | --- | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
| |     |                                                                                                                                                                                                        
| | (b) | any independent counsel or other adviser retained by the
      committee; and                                                                                                                          
| |     |                                                                                                                                                                                                        
| | (c) | ordinary administrative expenses of the committee that
      are necessary or appropriate in carrying out its
duties.                                                                                  

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- 2 -

The committee will promptly report to the Board its engagement
of any advisor, including the scope and terms of such engagement.

ARTICLE 4ORGANIZATION

|4.1 | Membership.
|--- | -----------

| | (a) | The Committee will be comprised of not less than three
      members of the Board.                                                                                                                                                                                                                                                                                                                                                                                                                                     
| | --- | -----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
| |     |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        
| | (b) | All of the members of the committee will meet the
      applicable independence and experience requirements of the law, including
      MI 52-110 of the Canadian Securities Administrators (MI 52-110),
      Sarbanes-Oxley, the rules promulgated by the Securities and Exchange
      Commission (the SEC), and rules promulgated by the NYSE Amex Equities
      (the NYSE Amex) (except in the circumstances, and only to the extent,
      permitted by all applicable legal and regulatory requirements).
| |     |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        
| | (c) | One of the members of the committee will be an audit
      committee financial expert pursuant to the requirements of the SEC and
      NYSE Amex (except in the circumstances, and only to the extent, permitted
      by all applicable legal and regulatory requirements).                                                                                                                                                                                                                                        
| |     |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        
| | (d) | No director who serves on the audit committees of more
      than three public corporations other than the Corporation will be eligible
      to serve as a member of the committee.                                                                                                                                                                                                                                                                                                                                   
| |     |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        
| | (e) | Each member of the committee will be appointed by the
      Board on an annual basis immediately following each annual general meeting
      of the shareholders of the Corporation, and will serve at the pleasure of
      the Board or until the earlier of:                                                                                                                                                                                                                                                        
| |     |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        
| |     | (i)                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    
| |     |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        
| |     | (ii)                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   
| |     |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        
| |     | (iii)                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  
| |     |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        
| |     | The Board may fill any vacancy in the membership of the
    committee.                                                                                                                                                                                                                                                                                                                                                                                                                                                 
| |     |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        
| | (f) | If not appointed by the Board, the chairman of the
      committee will be elected by the committee from among their members from
      time to time.                                                                                                                                                                                                                                                                                                                                                                  
| |     |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        
| | (g) | A quorum for any meeting will be a majority of the
      members of the committee, present in person or by telephone or other
      telecommunication device that permits all persons participating in the
      meeting to speak and to hear each other. Decisions by the committee will
      be by the affirmative vote of a majority of the members of the committee,
      or by consent resolutions in writing signed by each member of the
      committee.                                                     
| |     |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        
| | (h) | The secretary of the committee will be such person as may
      be appointed by the committee.                                                                                                                                                                                                                                                                                                                                                                                                                         

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- 3 -

|4.2 | Attendance at Meetings.
|--- | -----------------------

| | (a) | The committee may invite such other persons (e.g. the CEO
      and/or the CFO) to its meetings, as it deems appropriate.                                                                                                                                                                      
| | --- | -----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
| |     |                                                                                                                                                                                                                                                                                                
| | (b) | The external auditor is entitled to receive notice of,
      and to be present and participate at, all meetings of the committee, and
      may be expected to comment on the financial statements in accordance with
      best practices.                                                    
| |     |                                                                                                                                                                                                                                                                                                
| | (c) | Meetings of the committee will be held at least on a
      quarterly basis. Special meetings may be convened by any member of the
      committee, by either the Chief Executive Officer or the Chief Financial
      Officer of the Corporation, or by the external auditors, as
    required.
| |     |                                                                                                                                                                                                                                                                                                
| | (d) | The proceedings of all meetings of the committee will be
      minuted.                                                                                                                                                                                                                        

ARTICLE 5ROLES AND RESPONSIBILITIES

|5.1 | The committee will:
|--- | -------------------

| | (a) | be directly responsible for:
| | --- | ----------------------------
| |     |                             
| |     | (i)                         
| |     |                             
| |     | (ii)                        
| |     |                             
| |     | (iii)                       
| |     |                             
| |     | (iv)                        

| | (b) | consider and oversee the independence of the external
      auditors, including:
| | --- | --------------------------------------------------------------------------------
| |     |                                                                                 
| |     | (i)                                                                             
| |     |                                                                                 
| |     | (ii)                                                                            
| |     |                                                                                 
| |     | (iii)                                                                           
| |     |                                                                                 
| |     | (iv)                                                                            

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- 4 -

| | (c) | assure the regular rotation of the lead audit partner and
      the concurring partner every five years (with a five year time-out period
      after rotation), and the regular rotation of other audit partners engaged
      in the annual audit of the Corporation every seven years (with a two year
      time-out period after rotation), or as otherwise required by law or the
      rules of the NYSE Amex;                                                                                                                                                                                                                                                                                                          
| | --- | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
| |     |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                
| | (d) | be responsible for the pre-approval of all audit services
      and permissible non-audit services to be provided to the Corporation (or
      any of its subsidiaries) by the external auditors, subject to any
      exceptions provided by applicable laws, including the Securities
      Exchange Act of 1934, as amended (the 1934 Act), and the rules of
      the SEC promulgated thereunder, provided that such pre-approval authority
      may be delegated by the committee to any member of the committee who is
      both independent and unrelated on the condition that any such
      pre-approval must be presented to the committee at its first scheduled
      meeting following any such approval;
| |     |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                
| | (e) | consult with the external auditors, senior management,
      internal auditing staff (if any) of the Corporation and such other
      advisers as the committee may deem necessary regarding their evaluation of
      the adequacy of the Corporation's internal controls over financial
      reporting and disclosure controls and procedures (as such terms are
      defined by the SEC), and make specific recommendations to the Board in
      connection therewith;                                                                                                                                                                                                                                               
| |     |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                
| | (f) | be responsible for the review and oversight of all
      related-party transactions, as such term is defined by the rules of the
      NYSE Amex;                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              
| |     |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                
| | (g) | establish procedures for:                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      
| |     |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                
| |     | (i)                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            
| |     |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                
| |     | (ii)                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           
| |     |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                
| |     |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                
| |     |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                
| | (h) | set clear hiring policies for employees or former
      employees of the Corporations external auditors;                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      
| |     |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                
| | (i) | gain an understanding of whether internal control
      recommendations made by the external auditors have been implemented by
      management;                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               
| |     |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                
| | (j) | gain an understanding of the current areas of greatest
      financial risk and whether management is managing these
  effectively;                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            
| |     |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                
| | (k) | review the Corporations strategic and financing plans to
      assist the Boards understanding of the underlying financial risks and the
      financing alternatives;                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       
| |     |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                
| | (l) | review managements plans to access the equity and debt
      markets and to provide the Board with advice and commentary
  thereon;                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           

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- 5 -

| | (m) | review significant accounting and reporting issues,
      including recent professional and regulatory pronouncements, and
      understand their impact on the Corporations financial
  statements;                                                                                                                                                                                                                                                                                                                                                                                                                                      
| | --- | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
| |     |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            
| | (n) | review any legal matters which could significantly impact
      the financial statements as reported on by the general counsel or
      management and meet with outside counsel whenever deemed
    appropriate;                                                                                                                                                                                                                                                                                                                                                                                                                          
| |     |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            
| | (o) | review the annual and quarterly financial statements, the
      related management discussion and analysis and any related news releases
      and determine whether they are complete and consistent with the
      information known to committee members; determine that the auditors are
      satisfied that the financial statements have been prepared in accordance
      with generally accepted accounting principles, and, if appropriate,
      recommend to the Board that the annual and quarterly financial statements,
      the related management discussion and analysis and news releases be
      approved and issued;
| |     |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            
| | (p) | pay particular attention to complex and/or unusual
      transactions such as those involving derivative instruments and consider
      the adequacy of disclosure thereof;                                                                                                                                                                                                                                                                                                                                                                                                                                                                
| |     |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            
| | (q) | focus on judgmental areas, for example those involving
      valuation of assets and liabilities and other commitments and
      contingencies;                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            
| |     |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            
| | (r) | review audit issues related to the Corporation's material
      associated and affiliated companies that may have a significant impact on
      the Corporation's equity investment;                                                                                                                                                                                                                                                                                                                                                                                                                                                       
| |     |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            
| | (s) | meet with management and the external auditors to review
      the annual financial statements, the results of the annual audit and any
      recommendations by the auditors in connection therewith;                                                                                                                                                                                                                                                                                                                                                                                                                                     
| |     |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            
| | (t) | assess the fairness of the interim financial statements
      and disclosures, and obtain explanations from management on
  whether:                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       
| |     |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            
| |     | (i)                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        
| |     |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            
| |     | (ii)                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       
| |     |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            
| |     | (iii)                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      
| |     |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            
| |     | (iv)                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       
| |     |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            
| | (u) | review, prior to the commencement of each annual
      audit:                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              
| |     |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            
| |     | (i)                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        

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| | (ii) | the appropriateness and reasonableness of the proposed
      audit fee;
| | ---- | -----------------------------------------------------------------------

| | (v)  | meet separately with the external auditors to discuss any
      matters that the committee or auditors believe should be discussed
      privately, including the results of the external auditors review of the
      adequacy and effectiveness of the Corporations accounting and financial
      controls;                          
| | ---- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
| |      |                                                                                                                                                                                                                                                                                                                                           
| | (w)  | endeavour to cause the receipt and discussion, on a
      timely basis, of any significant findings and recommendations made by the
      external auditors;                                                                                                                                                                              
| |      |                                                                                                                                                                                                                                                                                                                                           
| | (x)  | obtain regular updates from management and the company's
      legal counsel regarding compliance matters, as well as certificates from
      the Chief Financial Officer as to required statutory payments and bank
      covenant compliance and from senior operating personnel as to permit
      compliance to the extent applicable;
| |      |                                                                                                                                                                                                                                                                                                                                           
| | (y)  | ensure that the Board is aware of matters which may
      significantly impact the financial condition or affairs of the business of
      the Corporation;                                                                                                                                                                               
| |      |                                                                                                                                                                                                                                                                                                                                           
| | (z)  | if necessary, institute special investigations and, if
      appropriate, hire special counsel or experts to assist in any such
      investigations;                                                                                                                                                                                     
| |      |                                                                                                                                                                                                                                                                                                                                           
| | (aa) | review and assess the adequacy of this charter, on an
      annual basis, and provide any suggested amendments or updates to the Board
      for review and approval;                                                                                                                                                                     
| |      |                                                                                                                                                                                                                                                                                                                                           
| | (bb) | work with the Board to determine an appropriate annual
      budget for the committee and its required activities, including but not
      limited to the compensation of the external auditors and any outside
      counsel or other experts retained by the committee; and                                                             
| |      |                                                                                                                                                                                                                                                                                                                                           
| | (cc) | generally, perform other functions as may be requested
      from time to time by the Board.                                                                                                                                                                                                                                              

Adopted November 13, 2009

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