Upload
others
View
5
Download
0
Embed Size (px)
Citation preview
Mineral Asset Valuation of
Vantage Goldfields Limited,
Mpumalanga Province,
South Africa
Effective Date: 08 May 2012
Issue Date: 11 July 2012
Minxcon Reference: M12-018
Authors:
D van Heerden (Director, Minxcon):
B.Eng. (Min. Eng.), M.Comm. (Bus. Admin.),
ECSA, FSAIMM, AMMSA
D Clemente (Chief Metallurgist, Minxcon &
Agere Project Management):
NHD (Ext. Met.), GCC, MMMMA, FSAIMM
NJ Odendaal (Director, Minxcon):
B.Sc. (Geol.), B.Sc. (Min. Econ.), M.Sc. (Min. Eng.),
Pr. Sci. Nat., FSAIMM, MGSSA, MAusIMM
Suite 5, Coldstream Office Park
Cnr. Hendrik Potgieter & van Staden Streets
Little Falls, Roodepoort, South Africa
Tel: +27 11 958 2899 │ Fax: +27 11 958 2105
www.minxcon.co.za
Directors: NJ Odendaal, D Van Heerden, C Muller
Registration No. 2004/029587/07
Mineral Asset Valuation of Vantage Goldfields Limited, Mpumalanga Province, South Africa
Prepared by Minxcon (Pty) Ltd
i
DISCLAIMER AND RISKS
TABLE OF CONTENTS
Mineral Asset Valuation of Vantage Goldfields Limited, Mpumalanga Province, South Africa
Prepared by Minxcon (Pty) Ltd
2
1 EXECUTIVE SUMMARY
Minxcon (Pty) Ltd (“Minxcon”) was commissioned by Vantage Goldfields (Proprietary) Limited (“VGL” or
“the Company”) to compile an independent Mineral Asset Valuation Report on the Company’s mineral
assets, located in the Barberton Goldfield near the town of Nelspruit, Mpumalanga Province, South Africa
(“the Project”).
Although VGL has a vast portfolio of gold mineral assets, including two producing gold mines, both in a
production build-up phase, various dormant gold mines and old workings and other prospects located in
areas of known gold mineralization, Minxcon’s valuation only considered those mineral assets which
contain defined Ore Reserves and Mineral Resources. VGL has conducted, and is continuing to conduct,
intensive exploration operations on its Prospecting Rights, where numerous targets have been identified.
Minxcon’s valuation was, therefore, based on VGL’s life-of-mine plan (“LoM”) for the Lily Mine (“Lily”) and
Taylors Mine (“Taylors”) and also took into consideration the additional, defined Mineral Resources within
the Company’s other mineral asset developments within the Project Area, including the greater Barbrook
Mines Complex (“Barbrook”) and the Worcester Mine project (“Worcester”).
In conducting our valuation, Minxcon reviewed the estimates, forecasts and assumptions made by the
Company in its LoM plan and supportive documentation in order to determine whether these are fair and
reasonable. As the Company (and its predecessors) has been mining and prospecting in the Barberton
Goldfield for two decades, Minxcon was able to gain an insight into the capability of its management team
by reviewing past production and exploration discovery performances as a measure of the level of
confidence which can be placed on management’s forward-looking statements and plans.
Project Location
Mineral Asset Valuation of Vantage Goldfields Limited, Mpumalanga Province, South Africa
Prepared by Minxcon (Pty) Ltd
3
VGL’s mineral assets are all accessible through well-developed infrastructure that comprises a
combination of tar and gravel roads, power supplies and easy access to goods and services throughout the
Project Area and its environs.
1.1 GENERAL GEOLOGY
The Barberton Greenstone Belt (“BGB”) hosts the gold mineralised ore bodies of Barbrook, Lily and
Worcester, amongst many other gold mines and prospects which include Pan African Resources plc’s
Sheba, Fairview and New Consort mines. Gold mining in the Barberton Goldfield has been continuous for
more than a century.
The gold mineralisation is typical of Archaean lode gold mineralisation located elsewhere in the world, for
example in the Western Australian and the Canadian Archaean terrains. In the Barberton Goldfield, most
of the economic ore bodies and other sites of significant gold occurrence have a strong spatial relationship
with regional faults and shear structures. VGL’s principal mineral assets are all located along prominent,
regional structural trends where these interact with second-order structures
Gold in the BGB is typically associated with chemical precipitates (chert and banded iron formations – BIF)
and local zones of second-order structural deformation. Ore bodies comprise quartz-carbonate veins as
well as auriferous shears contain varying amounts of sulphide mineralization. The major ore minerals are
pyrite, pyrrhotite and arsenopyrite. Depending upon the mineral assemblages, gold in the ore occurs
either as refractory or free-milling material.
With regard to VGL’s mineral assets, gold mineralization at Lily occurs as a free-milling, pyrrhotite hosted
ore whereas, at Taylors and in the remainder of the ore deposits within the Barbrook Mines Complex, gold
is contained in a so-called double refractory, sulphide ore type. The latter complicates metallurgical
recoveries, requiring special processing methods. At Worcester, the ore body is free-milling.
1.2 MINERAL RESOURCE
The table below shows VGL’s latest Mineral Resource Statement.The Mineral Resources are inclusive of
Ore Reserves at appropriate cut-off grades.
Mineral Resource Statement as at December 2011
MINE & CATEGORY
31-Dec-11 31-Dec-10
Tonnes Grade Content Tonnes Grade Content
(000) g/t kg oz (000) g/t kg oz
Lily Mine
Measured 6,070 3.07 18,700 600,000 6,240 3.07 19,160 616,000
Indicated 3,160 2.95 9,300 299,700 3,160 2.95 9,300 299,700
Inferred 12,830 2.67 34,200 1,100,900 12,830 2.67 34,200 1,100,900
Total 22,060 2.82 62,200 2,000,600 22,228 2.82 62,660 2,016,600
Barbrook Mines Complex
Measured 2,769 3.51 9,710 312,100 770 4.03 3,100 99,200
Indicated 1,672 6 10,030 322,500 1,300 5.32 6,900 222,400
Inferred 7,671 5.67 43,480 1,397,800 9,140 5.72 52,300 1,681,400
Total 12,112 5.22 63,220 2,032,400 11,210 5.56 62,300 2,003,000
Worcester Project
Measured 0 0 0 0 0 0 0 0
Indicated 1,870 3.98 7,450 238,700 1,520 4.01 6,100 195,400
Inferred 1,500 3.54 5,300 172,100 1,340 3.69 4,900 158,700
Mineral Asset Valuation of Vantage Goldfields Limited, Mpumalanga Province, South Africa
Prepared by Minxcon (Pty) Ltd
4
MINE & CATEGORY
31-Dec-11 31-Dec-10
Tonnes Grade Content Tonnes Grade Content
(000) g/t kg oz (000) g/t kg oz
Total 3,370 3.78 12,750 410,800 2,860 3.86 11,000 354,100
Imperial Project
Measured 0 0 0 0 0 0 0 0
Indicated 150 4.01 1,000 20,000 150 4.01 1,000 20,000
Inferred 0 0 0 0 0 0 0 0
Total 150 4.01 1,000 20,000 150 4.01 1,000 20,000
Makonjwaan Project
Measured 0 0 0 0 0 0 0 0
Indicated 300 3.41 1,000 32,000 300 3.41 1,000 32,000
Inferred 0 0 0 0 0 0 0 0
Total 300 3.41 1,000 32,000 300 3.41 1,000 32,000
Bonanza Project
Measured 50 3.75 180 6,000 50 3.75 180 6,000
Indicated 50 4.47 210 7,000 50 4.47 210 7,000
Inferred 0 0 0 0 0 0 0 0
Total 100 4.11 390 13,000 100 4.11 390 13,000
Centurion Dump*
Measured 560 2.28 1,000 41,000 560 2.28 1,000 41,000
Indicated 0 0 0 0 0 0 0 0
Inferred 0 0 0 0 0 0 0 0
Total 560 2.28 1,000 41,000 560 2.28 1,000 41,000
Total Resources
Total 38,652 3.66 141,560 4,549,800 37,410 3.73 139,350 4,479,700
Notes:
1. Mineral Resources are inclusive of Ore Reserves.
Mineral Asset Valuation of Vantage Goldfields Limited, Mpumalanga Province, South Africa
Prepared by Minxcon (Pty) Ltd
5
1.3 LOM PLAN OVERVIEW
VGL’s Ore Reserves were stated for three underground operations, namely Lily Mine, Taylors Mine
(Barbrook Stage 1) and Worcester Mine. However, the latter has not been included in the LoM plan.
During 2011 and 2012, ore was mined from Lily Mine and Taylors Mine. VGL’s February 2012 LoM plan
comprises Lily Mine, Taylors Mine (Barbrook Stage 1) and Barbrook Stage 2. Barbrook Stage 2 is included in
the LoM plan as its large Mineral Resource inventory is considered by the Company to constitute the next,
major production building block in its strategic growth plan.
The location of the different operations within the Project Area is illustrated in the figure below.
Location of Different Operations
A Pre-Feasibility study was done on Worcester Mine but the Ore Reserves were excluded from the LoM as a
strategic decision was made by the Company to first add critical mass to the Ore Reserves before any
further project development is undertaken in the short term.
Mineral Asset Valuation of Vantage Goldfields Limited, Mpumalanga Province, South Africa
Prepared by Minxcon (Pty) Ltd
6
The LoM plan for VGL as indicated in the February 2012 LoM plan is illustrated below:-
VGL LoM Production Profile and Grade
Lily Mine production is planned to double in 2012, from the approximate 16,000 tpm produced in 2011, to
reach a steady state production rate of approximately 33,000 tpm. Lily Mine will maintain steady state
production for 11 years. Taylors Mine is planned to reach steady state production in October 2012 and
maintain steady state production until the end of 2014 at 8,000 tpm.
Barbrook Stage 2 is planned to commence in 2014 and will replace the production from Taylors Mine
(Barbrook Stage 1). It will increase the production from the Barbrook complex to 45,000 tpm. Steady state
production is expected to be achieved over four years at the end of 2016. The required feasibility study
work will be conducted within 2012 on the Barbrook Stage 2 operation.
1.4 OPERATING COSTS
The operating costs for the operation consist of fixed and variable components. The split between fixed
and variable costs are illustrated in the table below.
Fixed Variable Cost Split
Fixed Cost % Variable Cost %
Stoping 12.70% 87.30%
Development 22.30% 77.70%
Plant 19.13% 80.87%
Engineering 100% 0%
Technical Services 100% 0%
Mine Administration 100% 0%
Mine Overheads 100% 0%
Overall 45% 55%
Mineral Asset Valuation of Vantage Goldfields Limited, Mpumalanga Province, South Africa
Prepared by Minxcon (Pty) Ltd
7
The total cash cost for the different operations over the LoM plan as stand-alone operations and combined
are illustrated in the table below.
VGL’s Operating Costs
Units Lily Taylors Total Barbrook
Potential Total
Net Turnover ZAR/Milled tonne 937 996 941 1,119 1,045
Mine Cost ZAR/Milled tonne 181 195 182 191 187
Plant Costs ZAR/Milled tonne 137 173 139 269 215
Cash Operating Costs ZAR/Milled tonne 318 368 321 461 403
Royalties ZAR/Milled tonne 5 5 5 10 19
Total Cash Costs ZAR/Milled tonne 323 373 326 471 422
Other Costs ZAR/Milled tonne 240 465 237 212 196
Total Production Costs ZAR/Milled tonne 563 838 563 683 618
The cost is illustrated as ZAR/t milled according to VGL’s February 2012 LoM plan. The operations each
have a higher operating cost as stand-alone operations due to the overhead fixed cost component.
1.5 CAPITAL COSTS
The capital expenditure for all three of the operations in the LoM can be seen in the table below. The
capital expenditure of the plants for the three different projects is also included, which is expected to
continue until 2014.
Total Life of Mine Capital Expenditure Including All Three Operations
ZAR
Mining
Mine Development 589,971,836
Mine Equipment 275,400,000
Infrastructure 49,000,000
Mining Total 914,371,836
Plant
Lily Processing Plant 11,000,000
Taylors Processing Plant 250,000,000
Barbrook Phase 2 Processing Plant 4,700,000
Plant Total 265,700,000
Other Infrastructure 366,000
Total 1,180,437,836
The total capital cost included for all three operations amounts to ZAR1,180.44 million for the LoM.
1.6 MINERAL RESOURCES INCLUDED IN LOM PLAN
Only Measured and Indicated Mineral Resources were included in the LoM plan. The split between
Measured, Indicated and Inferred is illustrated in the table below.
Mineral Resources Included in the Ore Reserve Plan
Mineral Resources in LoM Plan Lily Mine Taylors Mine Worcester Mine
Measured 64% 83% 0%
Indicated 36% 17% 100%
Inferred 0% 0% 0%
All the Inferred Mineral Resources were excluded from the Ore Reserve plan.
Mineral Asset Valuation of Vantage Goldfields Limited, Mpumalanga Province, South Africa
Prepared by Minxcon (Pty) Ltd
8
1.7 ORE RESERVES
VGL’s Ore Reserves are illustrated in the table below as stated in the April 2012 Vantage Goldfields
Limited Annual Report. The effective date of the Ore Reserves is December 2011.
Ore Reserve Statement as at December 2011
MINE & CATEGORY
31-Dec-11 31-Dec-10
Tonnes Grade Content Tonnes Grade Content
(000) g/t kg oz (000) g/t kg oz
Lily Mine 1
Proved 370 2.83 1,045 33,600 371 2.73 1,010 32,500
Probable 4,740 3.08 14,615 470,000 4,386 3.22 14,100 453,500
Total 5,110 3.06 15,660 503,600 4,757 3.18 15,110 486,000
Barbrook Mines Complex 2
Proved 260 4.06 1,060 34,100 286 4.09 1,170 37,600
Probable 60 4.44 250 8,100 57 4.44 253 8,100
Total 320 4.13 1,310 42,200 343 4.15 1,423 45,700
Worcester Project 3
Proved 0 0 0 0 0 0 0 0
Probable 1,400 3.01 4,220 135,600 0 0 0 0
Total 1,400 3.01 4,220 135,600 0 0 0 0
Total Reserves
Total 6,830 3.1 21,190 681,400 5,100 3.24 16,533 531,700
Notes:
1. Mineral Resource and Ore Reserve Statement – December 2011.
2. The Ore Reserves at Barbrook include only Barbrook Stage 1 (Taylors Mine).
3. Worcester Mine Pre-Feasibility study September 2011.
1.8 METALLURGY
The ore from both current operations is treated at the former Barbrook plant – now called the Central
Metallurgical Complex (“CMC”). The Dorè is sent to the Rand Refinery. Taylors Mine produces a float
recovery concentrate which is then sold per off-take agreement to Mine 2 Market (M2M) at approximately
63% of the price of the metal content. The Barbrook Stage 2 ore is expected to be treated using a separate
BIOX® plant which is still to be constructed.
Plant Recovery Factors
Commodity Recovery
Lily (Overall Recovery Conventional CIL) 90%
Barbrook (Overall Recovery which includes Float and Biox and CIL) 81%
Taylors (Float Recovery) 79%
The recovery reflected for Barbrook Stage 2 includes Float, BIOX® and leach. By assuming a float recovery
of 88% and combined BIOX® and leach recoveries of 92% to 95%, respectively, an overall recovery of 82%
should be achieved. A detailed review of process alternatives as part of a Bankable Feasibility Study
(“BFS”) is currently underway, which includes pilot plant test work.
VGL purchased Barbrook Mines Limited (“BML”) primarily to use its plant to replace the smaller
Makonjwaan plant. The CMC was successfully converted to treat Lily ore and has been operating since
January 2011. Various alternatives are being pursued by VGL’s technical team to treat the more refractory
Taylors ore and this includes the BIOX® process, which is an established technology for treating refractory
ores in the Barberton area. Minxcon is in agreement with this strategy, providing that the required test
work is done to ensure that the optimum gold recovery and operating cost is well understood. This is part
of the BFS currently being done.
Mineral Asset Valuation of Vantage Goldfields Limited, Mpumalanga Province, South Africa
Prepared by Minxcon (Pty) Ltd
9
The Stage 2 BFS will initially concentrate on determining the feasibility of mining and processing the
extensions of the ore bodies currently being extracted. Minxcon recommends that the detailed design be
reviewed and evaluated following the completion of the test work - this will form part of the BFS and
independent consultants have already been appointed by VGL to monitor progress.
There was a significant gold lock-up in the CMC plant during the commissioning period from January to
April 2011. The gold lock-up negatively affected the actual gold recovery but subsequently improved to
around 90% once the plant stabilised.
Operating costs for treating Lily ore were ZAR198/t against a budgeted amount of ZAR258/t for the year.
There are opportunities to further reduce the operating unit costs. Operating costs to produce a flotation
concentrate for export by M2M from the Taylors ore were ZAR233/t between April and December 2011.
The gold recovery is low (±50%) due to the constraints of having to produce a high-grade concentrate of 50
g/t in terms of the off-take agreement with M2M.
1.9 FINANCIAL VALUATION
Minxcon considered the Market Approach (Comparative Valuation) and Cash Flow Approach (“DCF”) as
suitable methods to determine a range of values for VGL.
1.9.1 Comparative Valuation
Applying the comparative valuation, a value of ZAR613.244 million was placed on the Mineral Resources
not included in the LoM plans for Lily and Taylors.
Mineral Asset Valuation for VGL Based on Comparative Analysis
Project Mineral Resource
Category Gold (oz)
Value/oz (USD)
Value (ZAR)
Lily (Residual Resources not in Reserve)
Measured 109,365 91.56 78,388,787
Indicated 75,258 34.31 20,212,722
Inferred 1,101,360 8.16 70,382,123
Total M, Ind and Inf 1,285,982 16.79 168,983,632
Barbrook(Residual Resources not in Reserve)
Measured 312,479 84.06 205,615,844
Indicated 322,536 30.88 77,964,131
Inferred 1,398,383 7.06 77,246,294
Total M, Ind and Inf 1,802,686 22.67 360,826,628
Makonjwaan Indicated 32,890 23.45 6,036,331
Imperial Indicated 19,339 24.59 3,722,354
Worcester
Indicated 239,285 21.16 39,631,450
Inferred 170,721 5.12 6,841,773
Total Ind and Inf 410,006 14.48 46,473,223
Bonanza
Measured 6,028 66.05 3,116,682
Indicated 7,186 25.16 1,415,285
Total M and Ind 13,214 43.81 4,531,966
Centurion Measured 41,050 70.55 22,670,401
Total Resource NIR All M, Ind, Inf 3,835,880 20.42 613,244,175 Note: Converted at ZAR/USD7.83.
1.9.2 DCF
In generating the discounted cash flow model, the following were considered:
This report details the optimised cash flow model with consensus economic input parameters.
A hurdle rate of 13.44% (in nominal terms) was assumed for the discount factor.
The impact of the Mineral Royalties Act using the formula for refined metals.
Mineral Asset Valuation of Vantage Goldfields Limited, Mpumalanga Province, South Africa
Prepared by Minxcon (Pty) Ltd
10
Sensitivity analyses were performed to ascertain the impact of discount factors, commodity
prices, grade, total working costs and capital expenditures.
Valuation of the respective tax entities was performed according to the “gold mining tax
formula”.
The full value of the respective operations is reported – no attributable values were calculated.
The study was done on three different gold deposits. Lily and Taylors are currently being mined
and Barbrook Stage 2 is to start up during 2014. Lily is being mined with mechanised long-hole
open stoping and Taylors by means of shrinkage stoping.
The Taylors concentrate after flotation is sold to M2M, while the Lily processed gold is sent to the
Rand Refinery. The respective payout percentages received by VGL have been factored into the
DCF calculations.
The Taylors and Lily Mines are the only two operating mines included in the DCF. The remainder of
the Barbrook Mining Complex (i.e. Barbrook Stage 2) currently has no Ore Reserves and mine plan,
and its value is based on the assumption that the BFS is positive and that the production schedule
reflected in the LoM is achievable. The economic potential of Barbrook’s current Mineral
Resources will only be quantifiable once the BFS is completed.
Minxcon’s opinion on VGL’s Mineral Resources and Ore Reserves is that they are fully compliant
with the SAMREC Code as well as the JORC Code.
The Company’s declared Ore Reserves at the Worcester Project have not been included in the
Cash Flow Approach. A Pre-feasibility Study undertaken by VGL on Worchester showed a potential
real value of between NPV20 ZAR 58.941 million and NPV15 of ZAR112.150 million, but due its
size, Worcester was not included in the LoM, The Worcester Project was, therefore, valued on the
basis of its Mineral Resources.
A long-term rand exchange rate of ZAR/USD8.25 and a gold price of USD1083/oz were used in the cash
flow models.
Long-term Prices Used in Cash Flow (Constant Money Terms)
2012 2013 2014 2015 2016 Long Term
Years 1 2 3 4 5 6
Exchange Rate ZAR/USD 7.9 8.01 8.09 8.17 8.25 8.25
ZAR Inflation Rate % 5.40% 5.40% 6.00% 6.10% 6.10% 6.00%
US Inflation Rate % 2.00% 2.11% 2.40% 2.40% 2.40% 2.50%
Gold USD/oz. 1,750 1,761 1,516 1,345 1,218 1,083
The following table illustrates the value of the mining projects in the LoM at various discount rates:
NPVs at Various Discount Rates (Nominal Terms)
Change Nominal
Discount Rate Lily NPV
(ZAR’million) Taylors NPV (ZAR’million)
Total Barbrook NPV (ZAR’million)
Potential Total
-14.00% -0.60% 1,711 66.79 1,777 3,089 4,866
-12.00% 1.40% 1,569 67.22 1,636 2,477 4,112
-10.00% 3.40% 1,446 67.27 1,513 1,997 3,510
-8.00% 5.40% 1,340 67.05 1,407 1,619 3,025
-6.00% 7.40% 1,247 66.61 1,313 1,318 2,631
-4.00% 9.40% 1,165 66.02 1,232 1,076 2,308
-2.00% 11.40% 1,094 65.3 1,159 882 2,041
13.40% 1,030 64.51 1,095 723 1,818
2.00% 15.40% 974 63.65 1,037 593 1,631
4.00% 17.40% 923 62.76 986 487 1,473
6.00% 19.40% 878 61.83 940 398 1,338
8.00% 21.40% 837 60.9 898 324 1,222
10.00% 23.40% 801 59.96 861 262 1,123
12.00% 25.40% 767 59.03 826 210 1,036
14.00% 27.40% 737 58.1 795 165 960
Mineral Asset Valuation of Vantage Goldfields Limited, Mpumalanga Province, South Africa
Prepared by Minxcon (Pty) Ltd
11
Minxcon performed a single-parameter sensitivity analyses to ascertain the impact of the NPV. The gold
prices, exchange rates, grades and production have the biggest impact.
NPV Sensitivities (Combined)
Profitability of Different Mining Projects
Mine Lily Taylors Total Barbrook Potential Total
Item Profitability
Ratios Profitability
Ratios Profitability
Ratios Profitability
Ratios Profitability
Ratios
Total Oz in Mine Plan 435,422 43,019 478,440 973,252 1,451,692
ZAR/Oz 2,366.23 1,499.53 2,288.30 743.01 1,252.30
US$/Oz 289.22 182.98 279.7 91 152.81
LOM 12 3 12 15 15
PV of Income flow 1,280 1,768 1,396 1,563 3,091
PV of Investment 238 231 283 658 941
Benefit-Cost Ratio 5.39 7.64 4.93 2.38 3.28
Capital Gain 439% 664% 393% 138% 228%
Average Payback 0 0 0 3.65 0
The full values of the different projects were derived after applying the Comparative Valuation method to
the Mineral Resources and the Discounted Cash Flow method to the Ore Reserves (with the exception of
Worcester). Although the Taylors and Lily Mines are the only two mines included in the DCF, the defined
ore bodies in the greater Barbrook Mines Complex have economic potential once the Ore Reserves and
mine plan for these are finalised in the BFS.
Financial Valuation Summary (Full Value - ZARm)
Mine Market Approach Value Cash Flow Approach
(DCF) Value Total Value
Lily 168,984# 1,030.31 1,199.29
Taylors 0 64.51 64.51
Barbrook 360.826# 0 360.826
Barbrook Complex 360.826 64.51 425.336
Worcester 46.473 0 46.47
Makonjwaan 6.036 0 6.04
Imperial 3.722 0 3.72
Bonanza 4.531 0 4.53
Centurion 22.670 0 22.67
Others 83.432 0 83.43
Mineral Asset Valuation of Vantage Goldfields Limited, Mpumalanga Province, South Africa
Prepared by Minxcon (Pty) Ltd
12
Mine Market Approach Value Cash Flow Approach
(DCF) Value Total Value
Current Full Value 613,244 1,094.82 1,708.06
Notes:
1. # Comparatives for Lily and Barbrook are based on residual Resources (Resources not included in DCF LOM plan).
2. *Total value excludes the Barbrook DCF value of ZAR723 million. Should this be included, above adjustment to the
Barbrook comparative value needs to be made.
The following graph illustrates the effective value of VGL’s mineral assets. The values exclude balance
sheet items (net debt).
Corporate Structure and Values
1.10 CONCLUSIONS
Minxcon concludes the following for VGL:
Mineral Resources
The data used in the estimation are reliable.
The estimation parameters used to calculate Mineral Resources are very conservative and the
classifications of Measured and Indicated (used to calculate Ore Reserves) are accurate.
The methodology used for the estimation was appropriate according to the size of the deposits
and the continuity of the mineralization.
Ore Reserves
The actual production figures for the different mines indicate a constant increase and in March
2012 the mine achieved the planned production from the Ore Reserves for both underground
operations.
All the required mine design work was done within the Ore Reserves and Measured and Indicated
Mineral Resource categories.
The actual operating costs indicate a constant improvement over the last year for both the
underground operations.
The stated Ore Reserves for Lily Mine were calculated by applying a 2.25 g/t cut-off grade to the
Measured and Indicated Mineral Resource grade tonnage curves. Depletions of tonnages mined
during 2011 were included in the calculations. The modifying factors used for Lily Mine were
obtained from the Lily Mine feasibility study. Annual reconciliations are done to update the
modifying factors.
Current Corporate Structure and Values Date: May 2012
Vantage Goldfields Limited
Vantage Goldfields SA (Pty) Limited ZAR1,395.991 million
Vantage Goldfields (Pty) Limited (Worcester Mine Project) ZAR1,200.258 million
Lomshiyo Investments (Pty) Limited (BEE) ZAR312.067 million
MIMCO (Pty) Limited (Lily Mine) ZAR1,209.048million
Centurion Mining Company (Pty) Limited (Bonanza) ZAR27.201million
Barbrook Mines Limited (Barbrook Mine) ZAR425.336 million
Makonjwaan Properties Value: ZAR6.036 million
Eastern Goldfields Exploration (Pty) Limited (Sheba Hills)
58% 100% 100% 100%
26%
74%
42%
100%- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - --
Australia
South Africa
Lily MineValue: ZAR1,199.29million
ImperialValue: ZAR3.722million
Taylors MineValue: ZAR64.51 million
100%
100%100%
Barbrook MineValue: ZAR360.826 million
Worcester MineValue: ZAR46.47 million
100%
100%
Mineral Asset Valuation of Vantage Goldfields Limited, Mpumalanga Province, South Africa
Prepared by Minxcon (Pty) Ltd
13
The stated Ore Reserves for the Taylors Mine were revised from the original Ore Reserves reported
in the Bankable Feasibility Study completed by Turgis. This included depletion during the year and
other modifying factors.
Plant
The decision taken to purchase Barbrook in order to use its plant to replace the Makonjwaan plant
was a strategically and financially sound decision. The CMC plant was successfully converted to
treat Lily ore and has been operating since January 2011.
After conducting a comprehensive Scoping Study during 2011 of various processing routes for
treating refractory ores, VGL determined that BIOX® is the best process to be pursued for
Barbrook. Minxcon is in agreement with this and VGL has already commenced a Stage 2 BFS for the
implementation of BIOX®.
The Stage 2 BFS will initially concentrate on determining the feasibility of mining and processing
the extensions of the ore bodies currently being extracted.
There was a significant gold lockup in the CMC plant during the commissioning from January to
April 2011. The gold lock-up negatively affected the gold recovery, but this improved to around
90% once the plant stabilised.
Operating costs for treating Lily ore were ZAR198/t against a budgeted cost of ZAR258/t for the
year. There are opportunities to reduce the operating unit costs. Since inception of the Taylors
ore circuit, the operating costs were ZAR233/t. Minxcon feels that, once tonnages are increased
and stable operations are reached, the total operating costs will diminish. The gold flotation
recovery at Taylors is low at around 50% due to the constraints of producing a high grade
concentrate of 50 g/t as per the off-take agreement with M2M.
Financial Valuation
Minxcon considered the Market Approach (Comparative Valuation) and Cash Flow Approach
(“DCF”) as suitable methods to determine a range of values for VGL.
Applying the Comparative Valuation method, a value of ZAR613.244 million was placed on the
Company’s total Mineral Resources not included in the LoM plans for Lily and Taylors.
Applying the Cash Flow Approach, a value of ZAR1,094.82 million was placed on the Ore Reserves
included in the LoM plan.
The Barbrook Stage 2 will reflect its full economic potential once the BFS is successfully
completed on the existing Mineral Resources.
The full value of the Project is ZAR1,708.06 million.