Goltsovoye Update
Ovoca Gold PLC
08 February 2007
Ovoca Gold Plc ('Ovoca')
Ovoca Announces Positive Initial Phase of Bankable Feasibility Study Results on
the Goltsovoye Silver Project
Ovoca Gold Plc (AIM: OVG; IEX:OVX) announces positive results of the Bankable
Feasibility Study Phase 1 Report, completed by Wardell Armstrong International
(WAI) on the Goltsovoye Silver Deposit in Russia. Ovoca also announces the
results of the Goltsovoye diamond Drilling Programme which was part of the WAI
Report.
The Report includes a resource calculation in accordance with the JORC Code
(2004), an initial mine plan and results of metallurgical testwork, process
plant design alternatives, infrastructure design and environmental studies.
Commenting on the Report, Leonid Skoptsov, CEO of Ovoca Gold said 'We are
delighted with the results of Wardell Armstrong's work, which clearly
demonstrates that Goltsovoye is a truly world class asset with over seventy
million ounces of JORC classified silver resources at excellent grades. Given
the current interest in the Russian silver mining sector and, as the Goltsovoye
deposit now moves towards the finalisation of the bankable feasibility study, it
is easy to see the opportunity for Ovoca to be re-rated in the market as a
near-term major silver producer.'
Silver Resources
In total there are six known zones of silver mineralisation at Goltsovoye. In
2005 a Russian C1+C2 classified resource was completed on two of these zones
using a 150g/t silver cut-off grade and based on diamond drilling and
underground exploration development on 3 levels.
WAI was commissioned to complete the Phase 1 of the Goltsovoye Bankable
Feasibility Study ('BFS') in June 2006, a major part of which was to calculate
resources to JORC Code (2004) sufficient for the Phase 2 BFS. A twenty five
drill hole programme to confirm and compliment the previous work has been
completed and the results from all of these holes have been included in the JORC
Resource calculation.
Goltsovoye Project - JORC (2004) Classified Resources - February 2007
Category Tonnage Silver Grade Lead Grade Silver Metal Silver Equiv
g/t % Ounces Ounces
Zone 1 Measured 334,000 1,293.4 2.55 13,891,000 15,112,000
Indicated 1,027,000 927.0 2.83 30,611,000 34,775,000
Inferred 128,000 601.6 4.69 2,476,000 3,336,000
Zone 2 Indicated 116,000 715.5 2.60 2,669,000 3,102,000
Inferred 792,000 760.1 2.24 19,357,000 21,899,000
Total 2,397,000 895.3 2.69 69,004,000 78,224,000
Source: WAI Resources
Calculated using lead price $0.65/lb and silver $10/oz
These results compare favourably with the 2005 C1+C2 resource, using the same
150 g/t cut-off grade.
Category Tonnage Silver Grade Lead Grade Silver Metal
g/t % Ounces
C1+C2 2,480,000 934 3.16 74,300,320
WAI state that an analysis of the assay data from diamond drilling and from
underground development would indicate that silver values may have been
understated in the drill holes due to silver losses in the drill core and
further, that an increase in the resource grade of 20% to 25% is possible during
mining.
In addition to the resources in Zones 1 and 2, WAI include inferred resources in
dump material from the underground exploration development and a further
unaudited Russian P1 resource in four other zones at Goltsovoye. These are
summarised below.
Goltsovoye Project - Other Inferred Resources
Category Tonnage Silver Grade (g/t) Silver Metal (ozs)
Dumps Inferred 64,500 238.0 493,700
4 other zones Russian P1 1,600,000 440.0 22,634,000
The Mine
The initial mine design is based on the measured and indicated resources in Zone
1 only. Mine access is envisaged by adits because the majority of Zone 1
resources are above the valley floor. All primary development will be trackless
using 6 main haulage levels at 60 metre intervals and all ore will exit the mine
via adits on the 900m and 810m elevations and trucked directly to the process
plant. The majority of the ore will be extracted in 8 metre wide stope panels
and ore recovery is expected to be 85% and dilution 5%.
The Process Plant
After crushing and grinding the process plant design consist of an initial
silver/lead concentrate from a gravity circuit followed by flotation and the
cyanidation of the tailings. Metallurgical testwork indicates that 73.4% of the
silver and 77% of the lead can be recovered in the concentrate with a
concentrate grade of 35% lead and 12,093 g/t silver. Leaching the flotation
tailings shows a further recovery of 17% of the silver with total silver
recovery of 90.06%. The mill site has been selected and a system of dry
tailings disposal is proposed.
Infrastructure
Power will supplied either by building a 35 kilometre power line or from on-site
generation.
A mine camp will accommodate 300 people working on 2-week rotation 7-days a
week. A single building will house the mine offices, mine change house,
maintenance workshops, warehouse and administration block. The assay office,
boiler room and power station will be located within the process plant building.
Environment
WAI has been working alongside the local Ecological Contractors in Magadan in
the preparation of the environmental impact assessment (EIA) for the BFS and for
the preparation of a similar report for State requirements known as OVOS. Once
the final engineering design is complete in Phase 2 of the BFS the EIA can be
completed and submitted for approval.
Phase 2: BFS
Ovoca is currently assessing quotations for the completion of the Phase 2 BFS
Report and will be working to make up the delay in completing the Phase 1 Report
during the course of the projects development.
Drilling Results
The following table contains the final results from the previously announced
drilling programme at Goltsovoye, which was completed in December 2006.
Borehole Interval Length Silver
Zone 1 From (metres) To Grammes Ounces per
(metres) (metres) per tonne tonne
GDA-12 56.8 61.1 4.3 284 9.13
Including ** 56.8 58.8 2 493 15.85
GDA-12 143.4 149 5.6 219 7.04
GDA-11 200.7 202.8 2.1 149 4.79
GDA-10 ** 81.5 83.3 1.8 874 28.10
Including ** 82.6 83.3 0.7 1,891 60.79
GDA-10 90 94.6 4.6 946 30.41
Including ** 91.5 92.5 1 3,942 126.74
GDA-10 ** 139.3 140.5 1.2 731 23.50
GDA-9 26.6 35.6 9 741 23.82
Including ** 26.6 27.6 1 1,609 51.73
Including ** 29.6 30.6 1 2,152 69.19
Including ** 31.8 32.6 0.8 1,201 38.61
GDA-9 ** 39.6 43.6 4 2,857 91.85
Including ** 39.6 40.6 1 10,031 322.50
GDA-9 55.8 56.8 1 847 27.23
GDA-9 ** 65.5 66.5 1 1,335 42.92
GDA-9 73.6 74.6 1 194 6.24
GDA-8 ** 102.5 105.35 2.85 2,972 95.55
Including ** 102.5 104 1.5 1,622 52.15
Including ** 104.95 105.35 0.4 15,057 484.09
GDA-13 ** 78 79 1 851 27.36
GDA-13 ** 120 122 2 1,684 54.12
GDA-13 ** 125 129.5 4.5 1,408 45.26
Including ** 126.3 127.3 1 3,710 119.28
Including ** 128.5 129.5 1 1,230 39.54
GDA-1 71.5 72.6 1.1 374 12.02
GDA-1 88 90 2 300 9.63
GDA-1 ** 100 100.5 0.5 1,022 32.86
GDA-6A 51.5 52.6 1.1 889 28.58
GDA-6A 102.6 103.1 0.5 1,096 35.24
GDA-7 14 14.5 0.5 653 20.99
GDA-7 22.2 22.8 0.6 715 22.99
GDA-7 36.5 39 2.5 355 11.41
Including 38.5 39 0.5 1,063 34.18
GDA-7 40.8 41.5 0.7 916 29.45
GDA-4 64 65 1 639 20.54
GDA-3 38.3 38.8 0.5 1,804 58.00
GDA-3 120 121 1 1,442 46.36
GDA-3 137.4 139 1.6 831 26.72
Including 137.4 138 0.6 1,990 63.98
GDA-2 71.4 73.7 2.3 306 9.84
GDA-2 107 108 1 194 6.24
Total Zone 1* 62.85 948 30.48
Borehole Interval Length Silver
Zone 2 From (metres) To Grammes Ounces per
(metres) (metres) per tonne tonne
GDB-5 111.5 113.5 2 1,601 51.48
Including 113 113.5 0.5 5,364 172.45
GDB-4 150 153.5 3.5 568 18.25
Including 152 152.8 0.8 1,710 54.98
GDB-6 213 213.6 0.6 231 7.43
GDB-7 145 145.5 0.5 673 21.64
GDB-8 75.4 76 0.6 160 5.14
GDB-11 57.1 57.6 0.5 275 8.84
GDB-9 45.4 46 0.6 315 10.13
GDB-9 220.4 221 0.6 4,520 145.32
GDB-12 48.7 52.5 3.8 312 10.02
Including 50 50.5 0.5 937 30.12
Total Zone 2* 12.7 786 25.27
Total Deposit* 75.55 921 29.61
* Silver grade - weighted average
** Result previously reported
The above information has been reviewed and verified by Roger Turner, Director and Chairman of Ovoca, for the purposes
of the Guidance Note for Mining, Oil and Gas Companies issued by the London Stock Exchange in March 2006. Mr. Turner,
with 40 years of mining engineering, management and consulting experience, graduated as a mining engineer from the
Camborne School of Mines, has an MSc degree in Economic Geology from Leicester University and is a member in good
standing with the Institute of Materials, Mining and Metallurgy and a UK Chartered Engineer.
Glossary:
Adit A tunnel usually close to horizontal and driven into a hillside from
surface for the purpose of access to an ore body.
Stope The area of an ore body that is actively being mined or has been mined
and the ore removed.
Interval Measured length of core from top of hole along the length of the hole
Ovoca Gold Plc is an international exploration company quoted in London (OVG.L)
and Dublin (OVX.IR), exploring for precious and base metals in Russia, Sweden
and Ireland
For further information please visit www.ovocagold.com or contact:
Simon Beardsmore, Commercial Manager - Nick Bias / Alex Buck - Buck Bias (UK PR)
Ovoca Gold Plc
Tel: +44 (0)7887 920 530 / +44 (0)7932 740 452
Tel: +44 (0)207 397 8159
Email: nick@buckbias.com / alex@buckbias.com
Email: simon.beardsmore@ovocagold.com
John Frain - Davy Richard Chase- Ambrian (AIM Broker)
Tel: +353 (0)1 679 6363 +44 (0)207 776 6461
Email: john.frain@davy.ie Email: richard.chase@ambrian.com
This information is provided by RNS
The company news service from the London Stock Exchange