5. Ahafo Growth
30
25
Year-End 2005
20
Au Moz
16.4 Moz Reserves(1) + NRM(2)
15
12.2 Moz Reserves(1)
10
5
Production
0
1995 1997 1999 2001 2003 2005 2007 2009
(1)At $400/oz Au
(2)At $425/oz Au
6. Ghanaโs Contribution To
Reserve Growth
16
Reserve Additions by Region* (Moz)
โข 32% of Reserve Additions
14
Are From Ghana
12
10
8
6
4
2
0
-2
2002 2003 2004 2005
North America South America Indonesia
Australia Ghana
*Excludes acquired ounces
7. World Quality Assets
All Known Gold Deposits
100 10
5M 50
Mo M
oz oz
z
1M
oz
Grade (g/t)
10
Ahafo - 2005
Ahafo - 2002
Akyem - 2002 Akyem - 2005
1
1 10 100 1,000
Reserve and Non-Reserve Mineralized Material Tons (Mt)
Source: Minerals Economics Group
11. Regional Framework Studies โ
Focus On Prospectivity
Data Compilation & Interpretation Prospectivity Analysis
Lansat
Geophysics
Geochemistry
Geology
Topography
โข Goal : 85% Of Prospectivity In 10% Of The Terrain
12. Exploration Tool Box
Proprietary BLEG Technology
Akyem BLEG Orientation Survey
Bill Griffin: BLEG
โข Rapid reliable reconnaissance tool
โข Ultra-low gold detection and precision
โข Noteable discoveries: Batu Hijau, Minihasa, Ovacik, Perama Hill, Martabe
13. Exploration Toolbox
Airborne EM And Magnetics
Aeromagnetic Interpretation
โข Detailed Lithologic and Structural model
Cees Swager:
Structural
Geology
Resistivity Depth Slice At 50m:
<6 ohm meters,
>60 ohm meters
Depth of Investigation: 75m-200m
โข Proprietary NEWTEM EM System
โข Resistivity/conductivity depth slice mapping
โข District reconnaissance tool
14. Exploration Toolbox
IP And Gravity
Jeremy Cook: Geophysics Gravity Survey
โข Growing database
โข Integrated with district data portfolio
Gradient Array Interpretation
15. Exploration Toolbox
Regolith Mapping & Geochemistry
Simon Bolster: Regolith
Nigel Radford: Geochemistry
โข Understanding regolith
distribution + profile
โข Knowing which data to
trust
โข Improved geochemical
interpretation
17. In Conclusionโฆ.
โข Back in Africa, and glad to be here
โข Built and operating Ahafo
โข Optimizing Akyem
โข Pleased with Africaโs contribution to global reserve growth
โข Proprietary tools, specialists, and training for integrated
exploration
โข ~7 Moz annual equity reserve depletion โ seeking business
opportunities to help address this goal