TRANS-SIBERIAN GOLD PLC 26 June 2013 Annual General Meeting TRANS-SIBERIAN GOLD
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TRANS-SIBERIAN GOLD PLC
26 June 2013 Annual General Meeting
TRANS-SIBERIAN GOLD
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ASACHA – Underground Mine
2011
2012
Q1
2013
April
2013
May
2013
YTD
2013
Mine
development (metres)
3,481 4,124 396 266 298 960
Ore extracted
(tonnes)
34,537 127,646 45,352 16,289 16,121 77,762
TRANS-SIBERIAN GOLD
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ASACHA Processing plant
2011
2012
Q1
2013
April
2013
May
2013
YTD
2013
Ore processed
(tonnes)
30,308 136,154 35,585
10,006 14,235 59,826
Gold grade (g/t) 9.35
6.54
6.36 6.79 6.27 6.41
Silver grade
(g/t)
15.66 11.79
9.80 12.20
10.51 10.37
Gold recovery
(%)
94.2 95.41 94.52 93.86 93.23 94.11
Silver recovery
(%)
61.8 68.49 78.81 68.74
69.21 74.69
Gold in dore
(oz)
7,833 27,920
6,826 2,025 2,621 11,472
Silver in dore
(oz)
8,596 35,924 8,791 2,412 3,168 14,371
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ASACHA Refining and sales
2011
2012
Q1
2013
April
2013
May
2013
YTD
2013
Gold refined
(oz)
6,539 27,588 6,833 1,578 2,748 11,159
Silver
refined (oz)
7,189 35,110 8,865 2,106 3,245 14,216
Gold sales
US$mill
11.7 43.9 12.6 2.5 4.1 19.2
Silver sales
US$mill
0.2 1.0 0.3 0.1 0.1 0.5
TRANS-SIBERIAN GOLD
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JORC Resource Estimate following 2012 Asacha exploration programme
• 11,000 metres drilled on Asacha’s flanks in 2012
• Asacha JORC resource update adds 321,000 oz. gold and 703,000 oz silver, net of 2011 and 2012 production (252,000 oz. of gold and 395,000 oz. of silver in Asacha’s Eastern zone identified in 2012)
TRANS-SIBERIAN GOLD
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JORC Resource as at 31 December 2012
PROPERTY
MEASURED
+
INDICATED
Oz
MEASURED,
INDICATED &
INFERRED
Oz
GRADE
g/t
(Au equiv.)
CUT-OFF
g/t
Asacha 748,100 1,070,300 20.9 4.0
Rodnikova 166,450 404,845 8.2 4.0
TOTALS 914,550 1,475,145 - -
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Asacha mine
• Daily output of 500-600 tonnes of ore
ensures continuous operation of the plant
• Processing plant throughput is close to the designed 12,500 tonnes of ore per
month
• Major issue of concern – low grades and
high dilution
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2012 major issue of concern: low grades and high dilution
– fractured and fragile enclosing rocks in blocks close to surface
– design disadvantages: • long hole blasting inappropriate for some
parts of the mine • blasting scheme unsuitable for some blocks
– shortcomings in earlier mine development: • advanced block preparation
• inadequate and timely supporting – lack of underground machines – lack of experienced personnel
TRANS-SIBERIAN GOLD
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Measures taken following 2012 technical audit
• New technical and managing staff – Technical director and Chief mine geologist, each with around 30 year practical experience
• Measures to keep mining blocks’ integrity
– minimise time lag between preparation of mining blocks and subsequent stoping – use rock drifts when preparing blocks for stoping
• Measures to reduce dilution - short blocks stoping, recoverable protective pillars and supporting concrete pillars/ceilings, where
appropriate - changes in blasting scheme, including drilling blasting holes parallel to the ore body, shallow blast -
hole blasting where appropriate, less brisant explosives and drilling blasting holes with smaller diameters
- smaller machines (scrapers and LHD) - stricter control on ore blasting and haulage to reduce volume of ore stored underground • Optimisation of work shifts
• More attention to ore sampling, stockpiling and blending • VNIPI design institute to revisit Asacha in near future
The aim – to achieve 8 g/t gold grade by the end of 2013 and 9 g/t by mid 2014
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New underground machines
• BU-80 rig with smaller diameter (65-75 mm instead of 105 mm)
• Two underground LHD : Fambition FAML-3 and Atlas Copco ST2D
• Underground truck Fambition FAMT-12T
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Asacha mine in operation (1)
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Asacha mine in operation (2)
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Construction continued at site
Post start-up major activities
Mine site: Main fan is constructed, testing with participation of the manufacturer is planned.
Plant: Ready for commissioning. Documentation in progress.
Tailings storage facility: In operation. Documentation for commissioning in progress.
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Key facilities already
commissioned: •Cyanide storage
•Explosives storage •Power unit and power supply system •The camp
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Rodnikova Deposit
• Federal authorities prescribed the implementation by April 2014 of two provisions of the Licensing Agreement:
– Finalisation of the design documentation
– Commencement of work at the deposit
• The pre-feasibility study will be finalised in 2013
TRANS-SIBERIAN GOLD
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