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Developing Bomboré
A World-class Gold Deposit   Q1-2013
Forward Looking Statements
This Presentation may contain “forward-looking information” which may include, but is not limited to, statements with respect to: political conditions and
government regulations in foreign countries; timing of the receipt of governmental approvals and/or acceptances; targets, estimates and assumptions in
respect of gold future gold production and prices; amount and type of future capital expenditures and capital resources; mineral reserves and mineral
resources; anticipated grades; recovery rates; future financial or operating performance; costs and timing of the development of new deposits; costs,
timing and location of future drilling; earning of future interests in various permits; production decisions; costs and timing of construction; project
economics; operating expenditures; costs and timing and nature of future exploration; and environmental and reclamation expenses. Often, but not
always, forward-looking statements can be identified by the use of words such as “plans”, “expects”, “is expected”, “budget”, “scheduled”, “estimates”,
“forecasts”, “intends”, “anticipates”, or “believes” or variations (including negative variations) of such words and phrases, or state that certain actions,
events or results “may”, “could”, “would”, “might” or “will” be taken, occur or be achieved. Forward-looking statements involve known and unknown risks,
uncertainties and other factors which may cause the actual results, performance or achievements of the Company and/or its subsidiaries and/or its
affiliated companies to be materially different from any future results, performance or achievements expressed or implied by the forward-looking
statements. Such factors include risks related to changes in, and volatility of, the price of gold; risks associated with operating in foreign jurisdictions; the
speculative nature of gold exploration and development projects; permitting and title risks; risks relating to potential changes to governmental regulation;
risks associated with the accuracy of mineral resource and reserve estimates; risks related to the fact that the Company has a history of losses and
expects to incur losses for the foreseeable future; risks related to the reliance on the Company’s management team and outside contractors; risks
related to drill shortages; risks associated with sample backlogs at assay laboratory facilities; risks related to the Company’s ability to finance the
exploration and development of its mineral properties; risk relating to misrepresentations; uncertainties related to title to the Company’s mineral
properties; risks relating to health concerns; environmental risks; operational risks and hazards inherent in the mining industry; risks associated with the
potential inability to maintain available infrastructure; risks related to the potential unavailability of insurance to cover certain risks; risks related to
increased competition in the mining industry; risks related to currency fluctuations; risks related to the fact the Company does not intend to pay
dividends in the foreseeable future; risks that shareholders’ interest in the Company may be diluted in the future; factors that have historically made the
Company’s share price volatile; risks for United States investors associated with possible PFIC status, as well as those risk factors identified in the
Company’s publicly filed disclosure documents available at www.sedar.com. Although the Company has attempted to identify important factors that
could cause actual actions, events or results to differ materially from those described in forward-looking statements, there may be other factors that
cause actions, events or results to differ from those anticipated, estimated or intended. Forward-looking statements contained herein are made as of the
date of the applicable public record document which the information is derived from and the Company has disclaimed any obligation to update any
forward-looking statements, whether as a result of new information, future events or results or otherwise. There can be no assurance that forward-
looking statements will prove to be accurate, as actual results and future events could differ materially from those anticipated in such statements.
Accordingly, readers should not place undue reliance on forward-looking statements due to the inherent uncertainty therein.

All Dollars in US currency (except share price and market capitalization)

All Financial data is as February 19, 2013 (except as otherwise noted)



                                                                                                                                                                    2
Background
 Orezone Resources       Orezone Gold
      1995 - 2009         2009 (ORE.T )

       Essakane             Same team
      1.5  5.3 Moz        + 3 gold projects

       Progress
   Permits                  Bomboré
   Debt Facility        0.9  5.2 Moz  +6?
   Start Construction


                            Market Cap
  Buys Orezone (OZN.T)    Jan. 2009 $20 M
        $350 M            Feb. 2013 $105 M
                                               3
Highlights
 Bomboré - World-class deposit and location
 •   5.2 Moz (4.13 M&I + 1.03 Inferred) at 1.0 g/t
 •   Located 85 km from Capital City along major highway
 •   120 m avg. drill depth to date & open below
 •   60,000 m of expansion and infill drilling underway

 Solid financials
 • $13 million cash, 85.6 million shares, no warrants
 • +$7 million in shares of Amara Mining

 Strong institutional & retail investor support
 • Van Eck, Sun Valley, JP Morgan, Tocqueville...

 Near-term catalysts
 Q1 – 2013                               2H - 2013
 Met-report, Resource Update, Drilling   Full Feasibility Study

 Analyst coverage: Target Price $1.75 - $5.40
 • NB, RBC, BMO, CIBC, GMP, Desjard, Canaccord, Ray J, Casmir     4
Corporate Structure
ORE.TSX                               Shareholders
Shares Issued          85.6 M         5% Management
Shares Fully Diluted   92.4 M         + 50% Institutional
Cash + Securities      $20 M ($7M)*    Sun Valley                    AGF
Debt                   None            Van Eck                       CIBC
Market Cap             $105 M          JP Morgan                       IG
Average Daily Volume   85,000          Beutel Goodman                BMO
Share Price            $1.22           Tocqueville                    TAL
                                       First Eagle                   Sprott


                                       Included in S&P / TSX Small Cap Index


                                       •11M common shares of Amara Mining
                                        representing a 6% holding.



                                                                               5
Experienced Team
Senior Management                                                             Years Experience
Ron Little P.Eng                    Founder, CEO & President                          25

Pascal Marquis Ph.D., P.Geo         SVP Exploration                                   25

Sean Homuth CPA, CA                 CFO                                               12

Claude Poulin MBA, P.Geo            Bomboré Project Manager                           25




Board of Directors
Mike Halvorson        Orezone Chairman, also was Director for Viceroy, Nova Gold …    40

Patrick Downey        CEO Elgin, also Aura, Viceroy, Yamana, Canico…                  30

Keith Peck            Previously SVP at RBC Dominion Securities, Haywood, Yorkton…    25

Alain Krushnisky      Audit Com Chair, CFO Reunion Gold, Palmarejo, Cambior…          25

Ron Little            Previous operations Lac Minerals, St. Joe Minerals, Bond Gold   25




                                                                                                 6
Burkina Faso
                             13th   Best region worldwide for exploration
                                    (Fraser Institute, 2011)
                             7      New gold mines since 2007

                             4th    Largest African gold producer

                             2004   Modernized mining code

                             16     Million people

                             1987   Stable democracy




Re-elected   Capital: Ouagadougou     + 1 Moz / yr       Cotton Producer
  2010
                                                                            7
Gold Deposits
       Gold Mine (including past production)
       Gold Deposit (total MI&I)                                                                       Niger
                                                                   Inata                Essakane
       Orezone Deposits                                                                 6.2 Moz
                                                                     3.8 Moz

                                               Karma 2.2 Moz
0          100   200 km                                              Taparko 1.1 Moz
                                                                Ronguen                            Samira Hill
                                         Sega 0.6 Moz                                              2.5 Moz
                                                                  0.5Moz
                                      Kalsaka 0.5 Moz             Bissa
                                                                   5.0 Moz
                                                  OUAGADOUGOU
                             Mana
                            8.2 Moz                     Bomboré              Tanlouka 1.2 Moz
                                                        5.2 Moz
                                                                             Kiaka
                           Vindaloo      Yaramoko                                        Nabanga 0.7 Moz
    Mali                                                                     5.0 Moz
                           1.6 Moz       0.7 Moz

                          Bondi                                   Youga
    Banfora                0.4 Moz                                1.4 Moz                            Benin
     4.6 Moz
                                                     Markoye Fault
Tongon
 4.5 Moz                      Konkera                                                     Togo
                               3.1 Moz                         Ghana
      Cote d’Ivoire
                                                                                                                 8
Summary: Gold Resources

Category                                     Tonnes                   Grade                Gold Content
                                            (millions)               (Au g/t)               (ounces)
Bomboré (constrained to $1400 pit shell)
  Measured & Indicated                           125.0                  1.03                   4,131,000
  Inferred                                        32.1                  1.00                   1,034,000
Bondi
  Measured & Indicated                            4.1                   2.12                     282,000
  Inferred                                        2.5                   1.84                     149,700
TOTAL NI 43-101
  Measured & Indicated                           129.1                  1.06                   4,413,000
  Inferred                                        34.6                  1.06                   1,183,700
Figures rounded to the nearest 1,000 oz using 0.5 g/t lower cut-off except for Bomboré which uses a cut-off of 0.45
g/t for the oxide and semi-oxidized material and 0.50 g/t for the fresh material.




                                                                                                                      9
Bomboré Resource Growth
             6
                         Estimate             Drilling
                           Date       RC        DD         TOTAL
             5             2006     41,757     1,080      42,837
                        2008 – Q1   44,050     1,080      45,130               1.00
                        2008 – Q4   63,003     6,794      69,797
                        2010 – Q4   105,459   14,533      119,992
             4
                        2012 – Q3   221,613   115,853     337,466
                        2013 – Q1   256,636   144,446     401,082
                                                                                        Inferred
Million oz




                        2013 – Q4   285,000   150,000     435,000
             3                                                                 1.06     Indicated

                                                                     0.96               Measured

             2                                                                           Au g/t
                                                          0.60


             1                                                                 0.99
                                     0.65                            0.81
                 0.82                                     0.59
                                     0.59
             0
                 2006               2008-02
                                    2008 Q1              2008-11
                                                         2008 Q4    2010-10
                                                                    2010 Q4   2012-08
                                                                              2012 Q3
                                                                                                    10
Bomboré Optimization Parameters
  Category              2012     2010       Category              2012     2010
  Gold Price            $1400    $1025      Mining Costs            $        $

  NSR                    $70      $41         Oxide                1.90     1.10

  Lower Cut-off          g/t       g/t        Transition           2.35     1.35

    Oxide                0.45     0.30        Fresh                2.44     1.65

    Transition           0.45     0.35      Processing Costs        $        $

    Fresh                0.50     0.50        Oxide                7.21     6.67

  Process Recovery        %        %          Transition           9.76     8.52

    Oxide                94        93         Fresh               12.66    10.36

    Transition           92        92       G&A                     $        $

    Fresh                82        78         Oxide                3.84     1.55

  Overall Pit slopes   Degrees   Degrees      Transition           3.84     1.67

    Oxide                35        37         Fresh                3.84     1.85

    Transition           40        42

    Fresh                45        50


  “Using current cost assumptions that are ~30% higher than 2010, the 2012
  resource increase to +5Moz underscores the continuity and upside potential of
  the deposit.”                                                                    11
Bomboré Whittle Pit Sensitivity
              Measured and Indicated                                      Inferred

      Gold         Ore             Au           Au            Ore             Au       Au
      Price      Tonnage         Grade         Metal        Tonnage         Grade     Metal
     US$/oz        (Mt)           (g/t)        (Moz)          (Mt)           (g/t)    (Moz)

      1100         78.5           1.05          2.65           20.2          1.01     0.66
     1200          97.3           0.98          3.05           26.0          0.95     0.79
     1300          112.0          0.91          3.49           41.5          0.88     1.17
     1400          142.0          0.85          3.88           56.5          0.82     1.50
     1500          167.9          0.80          4.31           74.6          0.78     1.86
     1600          193.6          0.75          4.70           99.3          0.74     2.36
     1700          218.7          0.72          5.05          129.9          0.71     2.95

      Resources are from Whittle runs and include 5% dilution and 5% mining losses.
      Cutoff of 0.3g/t in oxide, 0.35 g/t in semi-oxide and 0.5 g/t in sulphide.



      “Resources are highly leveraged to improvements in gold price”

                                                                                              12
Bomboré Overview




                               11 km
The Marquis Bridge




                     168 km²




                                       Current Mine Plan




                                                           13
Bomboré Drilling Cross Section
 Gold mineralization continues at depth




                                                           200 m



                                                    50 m
 Au Grades
    >0.5 g/t                              CIL Pit
    >0.2 g/t                              (2012)

                                                                   14
2012-13 Resource Growth Plan
                                       Drilling summary
  Gold in Soil                          Drilling     Total     Avg.        RC         Core
  Geochemistry
                                        Program     Drilled    Depth     Drilling    Drilling
                                                      m         m           m           m
                                       Up to 2010    120,000        60    106,000       14,000
                              ppb Au
                                 500   2011- H112    214,000      120      115,000      99,000
11 km                                  H2 2012        65,000      120       35,000      30,000
                                 100
                                       Planned        35,000      120       30,000       5,000
                                 50

                                       Total         434,000      120     286,000      148,000
                                  0




                                       • Deposit still open at depth and along strike
                                          *85,000 m of new drilling since Aug 2012 resource
                                       • 25,000 m of additional drilling by June 2013
                                         to upgrade and expand inferred resources
           Expansion potential
                                       • Resource update expected in Q1 2013
           2012 Pit shells
           using $1400 gold
                                                                                                15
2010 vs 2012 Drilling Results
Oxide Drill Results Projected to Surface                      All Assays > 3 g/t
 Oct. 2010                     Feb. 2013




                                           +85,000 m of new
                        +215,000 m              results
   1000 m                 drilling
                                                                                   11 km




 Gold Grade
     g/t
   > 1.00
   > 0.35



                                                                                      16
Oxide Expansion Potential - North
             Maga                      KT

                                                                  INF on HW


                        CFU

                                                           Maga
                    P8P9


                  P11




           Siga                             SW Extension
                               P17N
                                                                        CFU

                                P17
                         P16



     P13

                                1 km
                                                                              17
Oxide Expansion Potential - South

             Maga                       KT
                                             Siga East


                        CFU


                   P8P9


                  P11


                                              Siga South
                                                 HW

           Siga
                                P17N


                                 P17
                          P16



     P13

                                 1 km
                                                           18
Potential 2-Phase Build Scenario
 1      Oxide Plant                        2   Sulphide Expansion

 •   Process only oxides                • Process oxides & sulphides
 •   Smaller grinding/leach circuit     • Increase crushing, grinding
 •   Capacity 150,000 oz/year              and leaching circuits
 •   Recoveries + 90%                   • Capacity 250,000 oz/year
 •   Lower strip ratio (~2:1)           • Funding to come from cash flow


            Possible Improvements to 2011 PEA

      Lower initial capex, shorter construction period
      Higher recoveries and lower operating costs
         - Lower power, mining and process costs
      Lower strip ratios                              Feasibility
                                                      in progress
                                                                           19
Bomboré Schedule
                                   2012            2013            2014            2015
                               1   2   3   4   1   2   3   4   1   2   3   4   1   2   3   4

Drilling: Infill & Expansion   ● ● ● ● ● ●
Prelim Economic Study

Detailed Metallurgy            ● ● ● ● ●
Resource Update                    ●   ●     ●
Full Feasibility Study         ● ● ● ● ● ● ●
Permitting                                 ● ●
Construction                                                   ● ● ● ● ● ● ●
Production                                                                                 ●

    Our Goal:

                           Phase 1: 150,000
                                                               up to 250,000 oz / yr
                           Phase 2: +250,000

                                                                                               20
Orezone Infrastructure
  Ouaga Office
                                          Bomboré Camp




           New Access



                        Onsite prep-lab
                                                         21
Bondi Gold Project
Near-surface, heap leachable, with potential at depth
                            •    4 km trend, open along strike
                            •    282,000 oz Ind & 150,000 oz Inf
                            •    Average Grade 2.0 g/t
                            •    Metallurgical testwork in progress
                            •    Drill Program planned H1 2013
                           • Higher Grades up to 20 g/t
                        Zone 2 Drill Hole Highlights (results over 4 g/t)
                        Hole #       from     to     m      g/t    Section
                        BRC130        8.0    16.0    8.0    4.4     2925
                        BRC100        4.0    27.0    23.0   7.5     2975
             1km        BRC104        9.0    35.0    26.0   4.4     3025
                        BRC147D      133.5   164.0   30.5   5.2     3075
                        BRC110       13.0    25.0    12.0   5.5     3125
                        BRC113       48.0    63.0    15.0   5.7     3175
                        BRC057       40.0    69.0    29.0   6.3     3200
                        BRC116       20.0    39.0    19.0   4.3     3300
                        BRC283       33.0    52.0    19.0   10.4    3375
                        BRC204        8.0    21.0    13.0   20.3    3400
                        BRC278       51.0    57.0    6.0    14.8    3500     22
Corporate Social Responsibility
                      Water for Communities
                      •   Support communities by establishing
                          water and sanitation services
                      •   Over $650,000 raised and spent to
                          date for water projects / Ryan’s Well
                          Foundation a partner




                      Education and Training
                      • $190,000 invested to date
                      • Collaborative research with Universities
                      • 4 PhD students supported
                      • Microscope donated to
                        University of Ouagadougou




                                                                   23
Analyst Coverage
 Institution   Analyst              Updated      Target C$

               Paolo Lostritto      Feb - 2013     5.40

               Nicholas Campbell    Feb - 2013     4.50

               Adam Melnyk          Feb - 2013     4.50

               Jeff Killeen         Feb - 2013     3.50

               Andrew Mikitchook    Feb - 2013     3.25

               Brad Humphrey        Aug - 2012     3.00

               Stuart McDougall     Feb - 2013     3.00

               Jonathan Guy         Oct - 2012     2.50

               Andrew Breichmanas   Jan - 2013     1.75

                                                             24
Orezone Gold Corporation
290 Picton Avenue, Suite 201
Ottawa, Ontario, Canada
www.orezone.com            info@orezone.com
Toll Free: 1-888-673-0663 Tel: 1-613-241-3699

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Orezone feb13presentation

  • 1. Developing Bomboré A World-class Gold Deposit Q1-2013
  • 2. Forward Looking Statements This Presentation may contain “forward-looking information” which may include, but is not limited to, statements with respect to: political conditions and government regulations in foreign countries; timing of the receipt of governmental approvals and/or acceptances; targets, estimates and assumptions in respect of gold future gold production and prices; amount and type of future capital expenditures and capital resources; mineral reserves and mineral resources; anticipated grades; recovery rates; future financial or operating performance; costs and timing of the development of new deposits; costs, timing and location of future drilling; earning of future interests in various permits; production decisions; costs and timing of construction; project economics; operating expenditures; costs and timing and nature of future exploration; and environmental and reclamation expenses. Often, but not always, forward-looking statements can be identified by the use of words such as “plans”, “expects”, “is expected”, “budget”, “scheduled”, “estimates”, “forecasts”, “intends”, “anticipates”, or “believes” or variations (including negative variations) of such words and phrases, or state that certain actions, events or results “may”, “could”, “would”, “might” or “will” be taken, occur or be achieved. Forward-looking statements involve known and unknown risks, uncertainties and other factors which may cause the actual results, performance or achievements of the Company and/or its subsidiaries and/or its affiliated companies to be materially different from any future results, performance or achievements expressed or implied by the forward-looking statements. Such factors include risks related to changes in, and volatility of, the price of gold; risks associated with operating in foreign jurisdictions; the speculative nature of gold exploration and development projects; permitting and title risks; risks relating to potential changes to governmental regulation; risks associated with the accuracy of mineral resource and reserve estimates; risks related to the fact that the Company has a history of losses and expects to incur losses for the foreseeable future; risks related to the reliance on the Company’s management team and outside contractors; risks related to drill shortages; risks associated with sample backlogs at assay laboratory facilities; risks related to the Company’s ability to finance the exploration and development of its mineral properties; risk relating to misrepresentations; uncertainties related to title to the Company’s mineral properties; risks relating to health concerns; environmental risks; operational risks and hazards inherent in the mining industry; risks associated with the potential inability to maintain available infrastructure; risks related to the potential unavailability of insurance to cover certain risks; risks related to increased competition in the mining industry; risks related to currency fluctuations; risks related to the fact the Company does not intend to pay dividends in the foreseeable future; risks that shareholders’ interest in the Company may be diluted in the future; factors that have historically made the Company’s share price volatile; risks for United States investors associated with possible PFIC status, as well as those risk factors identified in the Company’s publicly filed disclosure documents available at www.sedar.com. Although the Company has attempted to identify important factors that could cause actual actions, events or results to differ materially from those described in forward-looking statements, there may be other factors that cause actions, events or results to differ from those anticipated, estimated or intended. Forward-looking statements contained herein are made as of the date of the applicable public record document which the information is derived from and the Company has disclaimed any obligation to update any forward-looking statements, whether as a result of new information, future events or results or otherwise. There can be no assurance that forward- looking statements will prove to be accurate, as actual results and future events could differ materially from those anticipated in such statements. Accordingly, readers should not place undue reliance on forward-looking statements due to the inherent uncertainty therein. All Dollars in US currency (except share price and market capitalization) All Financial data is as February 19, 2013 (except as otherwise noted) 2
  • 3. Background Orezone Resources Orezone Gold 1995 - 2009 2009 (ORE.T ) Essakane Same team 1.5  5.3 Moz + 3 gold projects Progress  Permits Bomboré  Debt Facility 0.9  5.2 Moz  +6?  Start Construction Market Cap Buys Orezone (OZN.T) Jan. 2009 $20 M $350 M Feb. 2013 $105 M 3
  • 4. Highlights Bomboré - World-class deposit and location • 5.2 Moz (4.13 M&I + 1.03 Inferred) at 1.0 g/t • Located 85 km from Capital City along major highway • 120 m avg. drill depth to date & open below • 60,000 m of expansion and infill drilling underway Solid financials • $13 million cash, 85.6 million shares, no warrants • +$7 million in shares of Amara Mining Strong institutional & retail investor support • Van Eck, Sun Valley, JP Morgan, Tocqueville... Near-term catalysts Q1 – 2013 2H - 2013 Met-report, Resource Update, Drilling Full Feasibility Study Analyst coverage: Target Price $1.75 - $5.40 • NB, RBC, BMO, CIBC, GMP, Desjard, Canaccord, Ray J, Casmir 4
  • 5. Corporate Structure ORE.TSX Shareholders Shares Issued 85.6 M 5% Management Shares Fully Diluted 92.4 M + 50% Institutional Cash + Securities $20 M ($7M)* Sun Valley AGF Debt None Van Eck CIBC Market Cap $105 M JP Morgan IG Average Daily Volume 85,000 Beutel Goodman BMO Share Price $1.22 Tocqueville TAL First Eagle Sprott Included in S&P / TSX Small Cap Index •11M common shares of Amara Mining representing a 6% holding. 5
  • 6. Experienced Team Senior Management Years Experience Ron Little P.Eng Founder, CEO & President 25 Pascal Marquis Ph.D., P.Geo SVP Exploration 25 Sean Homuth CPA, CA CFO 12 Claude Poulin MBA, P.Geo Bomboré Project Manager 25 Board of Directors Mike Halvorson Orezone Chairman, also was Director for Viceroy, Nova Gold … 40 Patrick Downey CEO Elgin, also Aura, Viceroy, Yamana, Canico… 30 Keith Peck Previously SVP at RBC Dominion Securities, Haywood, Yorkton… 25 Alain Krushnisky Audit Com Chair, CFO Reunion Gold, Palmarejo, Cambior… 25 Ron Little Previous operations Lac Minerals, St. Joe Minerals, Bond Gold 25 6
  • 7. Burkina Faso 13th Best region worldwide for exploration (Fraser Institute, 2011) 7 New gold mines since 2007 4th Largest African gold producer 2004 Modernized mining code 16 Million people 1987 Stable democracy Re-elected Capital: Ouagadougou + 1 Moz / yr Cotton Producer 2010 7
  • 8. Gold Deposits Gold Mine (including past production) Gold Deposit (total MI&I) Niger Inata Essakane Orezone Deposits 6.2 Moz 3.8 Moz Karma 2.2 Moz 0 100 200 km Taparko 1.1 Moz Ronguen Samira Hill Sega 0.6 Moz 2.5 Moz 0.5Moz Kalsaka 0.5 Moz Bissa 5.0 Moz OUAGADOUGOU Mana 8.2 Moz Bomboré Tanlouka 1.2 Moz 5.2 Moz Kiaka Vindaloo Yaramoko Nabanga 0.7 Moz Mali 5.0 Moz 1.6 Moz 0.7 Moz Bondi Youga Banfora 0.4 Moz 1.4 Moz Benin 4.6 Moz Markoye Fault Tongon 4.5 Moz Konkera Togo 3.1 Moz Ghana Cote d’Ivoire 8
  • 9. Summary: Gold Resources Category Tonnes Grade Gold Content (millions) (Au g/t) (ounces) Bomboré (constrained to $1400 pit shell) Measured & Indicated 125.0 1.03 4,131,000 Inferred 32.1 1.00 1,034,000 Bondi Measured & Indicated 4.1 2.12 282,000 Inferred 2.5 1.84 149,700 TOTAL NI 43-101 Measured & Indicated 129.1 1.06 4,413,000 Inferred 34.6 1.06 1,183,700 Figures rounded to the nearest 1,000 oz using 0.5 g/t lower cut-off except for Bomboré which uses a cut-off of 0.45 g/t for the oxide and semi-oxidized material and 0.50 g/t for the fresh material. 9
  • 10. Bomboré Resource Growth 6 Estimate Drilling Date RC DD TOTAL 5 2006 41,757 1,080 42,837 2008 – Q1 44,050 1,080 45,130 1.00 2008 – Q4 63,003 6,794 69,797 2010 – Q4 105,459 14,533 119,992 4 2012 – Q3 221,613 115,853 337,466 2013 – Q1 256,636 144,446 401,082 Inferred Million oz 2013 – Q4 285,000 150,000 435,000 3 1.06 Indicated 0.96 Measured 2 Au g/t 0.60 1 0.99 0.65 0.81 0.82 0.59 0.59 0 2006 2008-02 2008 Q1 2008-11 2008 Q4 2010-10 2010 Q4 2012-08 2012 Q3 10
  • 11. Bomboré Optimization Parameters Category 2012 2010 Category 2012 2010 Gold Price $1400 $1025 Mining Costs $ $ NSR $70 $41 Oxide 1.90 1.10 Lower Cut-off g/t g/t Transition 2.35 1.35 Oxide 0.45 0.30 Fresh 2.44 1.65 Transition 0.45 0.35 Processing Costs $ $ Fresh 0.50 0.50 Oxide 7.21 6.67 Process Recovery % % Transition 9.76 8.52 Oxide 94 93 Fresh 12.66 10.36 Transition 92 92 G&A $ $ Fresh 82 78 Oxide 3.84 1.55 Overall Pit slopes Degrees Degrees Transition 3.84 1.67 Oxide 35 37 Fresh 3.84 1.85 Transition 40 42 Fresh 45 50 “Using current cost assumptions that are ~30% higher than 2010, the 2012 resource increase to +5Moz underscores the continuity and upside potential of the deposit.” 11
  • 12. Bomboré Whittle Pit Sensitivity Measured and Indicated Inferred Gold Ore Au Au Ore Au Au Price Tonnage Grade Metal Tonnage Grade Metal US$/oz (Mt) (g/t) (Moz) (Mt) (g/t) (Moz) 1100 78.5 1.05 2.65 20.2 1.01 0.66 1200 97.3 0.98 3.05 26.0 0.95 0.79 1300 112.0 0.91 3.49 41.5 0.88 1.17 1400 142.0 0.85 3.88 56.5 0.82 1.50 1500 167.9 0.80 4.31 74.6 0.78 1.86 1600 193.6 0.75 4.70 99.3 0.74 2.36 1700 218.7 0.72 5.05 129.9 0.71 2.95 Resources are from Whittle runs and include 5% dilution and 5% mining losses. Cutoff of 0.3g/t in oxide, 0.35 g/t in semi-oxide and 0.5 g/t in sulphide. “Resources are highly leveraged to improvements in gold price” 12
  • 13. Bomboré Overview 11 km The Marquis Bridge 168 km² Current Mine Plan 13
  • 14. Bomboré Drilling Cross Section Gold mineralization continues at depth 200 m 50 m Au Grades >0.5 g/t CIL Pit >0.2 g/t (2012) 14
  • 15. 2012-13 Resource Growth Plan Drilling summary Gold in Soil Drilling Total Avg. RC Core Geochemistry Program Drilled Depth Drilling Drilling m m m m Up to 2010 120,000 60 106,000 14,000 ppb Au 500 2011- H112 214,000 120 115,000 99,000 11 km H2 2012 65,000 120 35,000 30,000 100 Planned 35,000 120 30,000 5,000 50 Total 434,000 120 286,000 148,000 0 • Deposit still open at depth and along strike *85,000 m of new drilling since Aug 2012 resource • 25,000 m of additional drilling by June 2013 to upgrade and expand inferred resources Expansion potential • Resource update expected in Q1 2013 2012 Pit shells using $1400 gold 15
  • 16. 2010 vs 2012 Drilling Results Oxide Drill Results Projected to Surface All Assays > 3 g/t Oct. 2010 Feb. 2013 +85,000 m of new +215,000 m results 1000 m drilling 11 km Gold Grade g/t > 1.00 > 0.35 16
  • 17. Oxide Expansion Potential - North Maga KT INF on HW CFU Maga P8P9 P11 Siga SW Extension P17N CFU P17 P16 P13 1 km 17
  • 18. Oxide Expansion Potential - South Maga KT Siga East CFU P8P9 P11 Siga South HW Siga P17N P17 P16 P13 1 km 18
  • 19. Potential 2-Phase Build Scenario 1 Oxide Plant 2 Sulphide Expansion • Process only oxides • Process oxides & sulphides • Smaller grinding/leach circuit • Increase crushing, grinding • Capacity 150,000 oz/year and leaching circuits • Recoveries + 90% • Capacity 250,000 oz/year • Lower strip ratio (~2:1) • Funding to come from cash flow Possible Improvements to 2011 PEA  Lower initial capex, shorter construction period  Higher recoveries and lower operating costs - Lower power, mining and process costs  Lower strip ratios Feasibility in progress 19
  • 20. Bomboré Schedule 2012 2013 2014 2015 1 2 3 4 1 2 3 4 1 2 3 4 1 2 3 4 Drilling: Infill & Expansion ● ● ● ● ● ● Prelim Economic Study Detailed Metallurgy ● ● ● ● ● Resource Update ● ● ● Full Feasibility Study ● ● ● ● ● ● ● Permitting ● ● Construction ● ● ● ● ● ● ● Production ● Our Goal: Phase 1: 150,000 up to 250,000 oz / yr Phase 2: +250,000 20
  • 21. Orezone Infrastructure Ouaga Office Bomboré Camp New Access Onsite prep-lab 21
  • 22. Bondi Gold Project Near-surface, heap leachable, with potential at depth • 4 km trend, open along strike • 282,000 oz Ind & 150,000 oz Inf • Average Grade 2.0 g/t • Metallurgical testwork in progress • Drill Program planned H1 2013 • Higher Grades up to 20 g/t Zone 2 Drill Hole Highlights (results over 4 g/t) Hole # from to m g/t Section BRC130 8.0 16.0 8.0 4.4 2925 BRC100 4.0 27.0 23.0 7.5 2975 1km BRC104 9.0 35.0 26.0 4.4 3025 BRC147D 133.5 164.0 30.5 5.2 3075 BRC110 13.0 25.0 12.0 5.5 3125 BRC113 48.0 63.0 15.0 5.7 3175 BRC057 40.0 69.0 29.0 6.3 3200 BRC116 20.0 39.0 19.0 4.3 3300 BRC283 33.0 52.0 19.0 10.4 3375 BRC204 8.0 21.0 13.0 20.3 3400 BRC278 51.0 57.0 6.0 14.8 3500 22
  • 23. Corporate Social Responsibility Water for Communities • Support communities by establishing water and sanitation services • Over $650,000 raised and spent to date for water projects / Ryan’s Well Foundation a partner Education and Training • $190,000 invested to date • Collaborative research with Universities • 4 PhD students supported • Microscope donated to University of Ouagadougou 23
  • 24. Analyst Coverage Institution Analyst Updated Target C$ Paolo Lostritto Feb - 2013 5.40 Nicholas Campbell Feb - 2013 4.50 Adam Melnyk Feb - 2013 4.50 Jeff Killeen Feb - 2013 3.50 Andrew Mikitchook Feb - 2013 3.25 Brad Humphrey Aug - 2012 3.00 Stuart McDougall Feb - 2013 3.00 Jonathan Guy Oct - 2012 2.50 Andrew Breichmanas Jan - 2013 1.75 24
  • 25. Orezone Gold Corporation 290 Picton Avenue, Suite 201 Ottawa, Ontario, Canada www.orezone.com info@orezone.com Toll Free: 1-888-673-0663 Tel: 1-613-241-3699