Trans-Siberian Gold PLC Asacha mining and production update (4062C)
2013年4月16日 - 3:00PM
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RNS Number : 4062C
Trans-Siberian Gold PLC
16 April 2013
Trans-Siberian Gold plc
Asacha mining and production update
LONDON: 16 April 2013 - Trans-Siberian Gold plc ("TSG" or the
"Company") (TSG.L) reports that mine development activities at
Asacha in the first quarter of 2013 comprised approximately 396
metres, while ore extraction (including ore from stoping and mine
development) amounted to 45,352 metric tonnes, the highest
quarterly total to date. As reported on 23 January 2013 mining
activity is now focused on increasing the volume and quality of
stoping ore, since the 4,100 metres of mine development in 2012
included the preparation of stoping areas to be mined in 2013.
Mining and production data at Asacha in the first quarter of
2013 is shown in the following table.
January February March Total Total
2013 2013 2013 Q1-2013 Q1-2012
-------------------- -------- --------- --------- --------- ---------
Mine development
(m) 157 164 75 396 1,023
-------------------- -------- --------- --------- --------- ---------
Ore extracted (mt) 14,865 14,390 16,097 45,352 33,525
-------------------- -------- --------- --------- --------- ---------
Ore processed (mt) 11,438 12,032 12,115 35,585 28,877
-------------------- -------- --------- --------- --------- ---------
Average gold grade
(g/t) 6.72 6.16 6.22 6.36 7.03
-------------------- -------- --------- --------- --------- ---------
Average silver
grade (g/t) 9.62 10.29 9.47 9.80 16.48
-------------------- -------- --------- --------- --------- ---------
Gold recovery rate
(%) 94.30 94.52 94.74 94.52 95.14
-------------------- -------- --------- --------- --------- ---------
Silver recovery
rate (%) 81.89 76.03 78.93 78.81 48.19
-------------------- -------- --------- --------- --------- ---------
Gold in dore (oz) 2,253 2,300 2,273 6,826 6,689
-------------------- -------- --------- --------- --------- ---------
Silver in dore
(oz) 2,827 3,030 2,934 8,791 7,320
-------------------- -------- --------- --------- --------- ---------
Gold refined (oz) 1,960 1,888 2,985 6,833 6,281
-------------------- -------- --------- --------- --------- ---------
Silver refined
(oz) 2,631 2,379 3,855 8,865 6,975
-------------------- -------- --------- --------- --------- ---------
During the first three months of 2013 the underground mine
continued to implement the changes previously reported, including
changes in stoping methods, additional mobile machinery and
qualified personnel and improved control of ore blasting and
haulage, intended to reduce the volume of ore stored underground.
The positive impact of these changes was partially offset by
rockfalls in February and March, due in part to an offshore
earthquake on 1 March, which affected one of the stoping areas with
richer ore. In spite of some problems with grinding equipment which
interrupted production for a short period, the plant's throughput
and performance were close to the planned figures.
Although TSG expects that the measures already taken and further
changes now being considered, such as the use of low density
explosives, will reduce ore dilution, the more fractured rock in
the upper part of the orebody makes it likely that this problem
will take time to resolve. Therefore the Company does not expect an
immediate improvement in the average grade of ore extracted.
TSG intends to report Asacha's second quarter 2013 production in
July 2013.
Ends
Contacts TSG
+ 44 (0) 1480 811871
Simon Olsen + 44 (0) 7770 484965
+44 (0) 207 894
Cantor Fitzgerald Europe 7000
David Foreman / Stewart Dickson (Corporate
Finance)
Jeremy Stephenson (Corporate Broking)
This information is provided by RNS
The company news service from the London Stock Exchange
END
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