Silvercorp Metals Inc.
TSX : SVM

Silvercorp Metals Inc.

January 21, 2008 09:00 ET

Silvercorp Discovers High Grade Polymetalic Mineralization at the Na-Bao Project, Qinghai, China

VANCOUVER, BRITISH COLUMBIA--(Marketwire - Jan. 21, 2008) - Silvercorp Metals Inc. ("Silvercorp") (TSX:SVM) is pleased to provide an update on the establishment of Qinghai Found Mining Co. Ltd. ("Qinghai Found"), a Sino-foreign cooperative joint venture company to explore and develop the Na-Bao Polymetalic Project in the Qinghai Province, and an update on the preliminary exploration results for the Na-Bao Project.

All required government approvals and filings for the establishment of Qinghai Found have been obtained and completed, and a business license was issued to Qinghai Found in September 2007. Silvercorp will acquire an 82% interest in the Qinghai Found by funding exploration and development. Transferring of the three Na-Bao permits of about 320 square km in area (19 km by 16 km) into Qinghai Found from our Chinese partner has been approved by Chinese military, related city and provincial authorities. It is now waiting for the final approval from the Ministry of Land and Resources of China in Beijing.

The limited exploration program was carried out during July to October 2007 to test the mineralization at one of the several regional geochemical anomalies discovered by our Chinese partner, focusing on the area of about 35 square km (7 km by 5 km) at the middle and east portions of the three Na-Bao Exploration Permits. The program consisted of a total of 28 trenches for 13,380 cubic meters, geological mapping at 1:10,000 scale over an area of 30 square kilometres as well as a coincident geochemical soil survey over the 30 square kilometres. Grab samples during the geological mapping process were taken from surface gossans over 65 localities within the area of about 35 square km and their assay results demonstrate widespread lead (Pb), zinc (Zn), Copper (Cu) and Silver (Ag) polymetalic mineralization.

All 28 trenches are distributed within the area of 3 km on Northeast by 2 km on Northwest, where 21 of the 28 trenches have exposed zones of mineralization of either oxidized/weathered gossans materials or primary sulfides by channel sampling. Based on these trenches, three inter-joint mineralized structures, F3, F2 and F1, were identified. The F3 structure strikes along the near north-south orientation for over 3 kilometres. From north to south, Trenches TC9, TC8, TC7, TC5, TC4, TC1, and TC2 all intercepted the F3 structure over a 2 kilometre strike length, with intercepts at the TC5 and TC1 close to the true thickness. F2 structure is over 3 kilometre length but orientates in northeast direction. From northeast to southwest, trenches TC13, TC14, TC12, TC11, TC6, and TC17 intercepted the F2 structure, with intercept at the TC17 close to the true thickness. F1 structure extends along an east-west strike for over 2 kilometres. From east to west, trench TC21, TC18 and TC22 have intercepted the F1 structure. Some significant assays from the trenches and surface gossans grab samples include the following:

1. Trench TC1 has intercepted F3 structure with two wide mineralization zones about 15 metres apart wide, Zone I, is a 20 metre wide zone of massive galena (lead sulfide) with average grades of 16.18% Pb and 45.9 g/t Ag including 10 metres grading 30.61% Pb and 80.1 g/t Ag. Zone II is oxidized/weathered (gossanous) materials of 43.5 m wide grading 0.54% Pb, 1.53% Zn, and 20.1 g/t Ag.

2. Trench TC8 has exposed 3.0 m mineralization zone of primary sulfide along F3 structure with grades 20.99% Pb, 11.58% Zn and 45.7 g/t Ag.

3. Trench TC9 has intercepted 39 m wide mineralization zone (gossans) grading 0.34% Pb and 2.51% Zn on the F3 structure.

4. Trench 5 intercepted 114 m wide mineralization (gossans) grading 0.35% Pb and 0.62% Zn on the F3 structure.

5. Trench TC22 has intercepted 3.0 m mineralization zone of gossans grading 6.64% Cu on F1 structure.

6. Trench TC17 has intersected 40.5 m wide mineralization zone (gossans) grading 1.44% Pb and 1.71% Zn on F2 structure.

7. Grab samples outside the trenches also returned significant results: Sample D706H1 grades 1.07% Pb, 0.87% Zn, 9.05% Cu and 4,080 g/t Ag; Sample NB006 grades 0.33% Pb, 1.1% Zn, 7.03% Cu, and 1,537 g/t Ag; Sample DHPM1H1 grades 1.38% Pb, 0.76% Zn, 6.55% Cu and 3,640 g/t Ag; Sample DHPM1H2 grades 0.79% Pb, 0.78% Zn, 4.39% Cu, and 1,620 g/t Ag; Sample D718H1 grades 9.56% Pb, 36.38% Zn, and 298 g/t Ag; Sample NB002 grades 84.57% Pb 0.39% Zn and 172 g/t Ag.

Except the Zone I of the Trench TC1 and TC8, all other trenches only exposed oxidized/weathered materials (gossans) due to heavy overburden. These trench results indicate that multiple, wide mineralization zones of up to 114 m exist in this project area. The weighted average grades of assay results of selected trenches and their intervals are set out in the table below.



---------------------------------------------------------------------------
Inter-
val Ag
Trench Mineralization Zone (m) Pb% Zn% Cu% g/t
---------------------------------------------------------------------------
Zone I: Weighted average grade 20.0 16.18 0.54 0.011 45.9
---------------------------------
TC1 Including 10.0 30.61 0.15 0.008 80.1
-------------------------------------------------------------------
Zone II: Weighted average grade 43.5 0.54 1.53 0.01 20.1
---------------------------------------------------------------------------
TC2 Weighted average grade 15 0.65 1.46 0.126 60.7
---------------------------------------------------------------------------
TC4 Weighted average grade 10.0 0.44 7.90 0.034 6.2
---------------------------------------------------------------------------
Zone I: Weighted average grade 38 0.17 0.47 0.003 1.0
TC5 -------------------------------------------------------------------
Zone II: Weighted average grade 114 0.35 0.62 0.004 4.9
---------------------------------------------------------------------------
TC6 Weighted average grade 1.5 1.13 0.11 0.017 46.8
---------------------------------------------------------------------------
TC7 Weighted average grade 3.0 0.06 4.65 0.002 0.05
---------------------------------------------------------------------------
TC8 Weighted average grade 3.0 20.99 11.58 0.009 45.7
---------------------------------------------------------------------------
Zone I: Weighted average grade 28.5 0.38 3.23 0.014 3.7
-------------------------------------------------------------------
Zone II: Weighted average grade 12.0 0.18 0.43 0.027 1.7
TC9 -------------------------------------------------------------------
Zone III: Weighted average grade 12.0 0.15 0.27 0.064 5.2
-------------------------------------------------------------------
Zone IV: Weighted average grade 3.0 0.13 4.37 5.20 10.7
---------------------------------------------------------------------------
TC4 Weighted aaverage grade 10.0 0.44 7.90 0.034 6.2
---------------------------------------------------------------------------
Zone I: Weighted average grade 4.0 0.06 0.08 0.338 126.1
TC11 -------------------------------------------------------------------
Zone II: Weighted average grade 2.0 0.01 0.01 0.12 45.1
---------------------------------------------------------------------------
Zone I: Weighted average grade 3.0 0.58 1.36 0.008 13.5
-------------------------------------------------------------------
TC12 Zone II: 1.5 0.01 0.02 0.14 66.45
-------------------------------------------------------------------
Zone III: 1.0 0.09 0.04 0.12 80.3
---------------------------------------------------------------------------
TC13 Weighted average grade 7.0 0.02 0.017 0.081 25.8
---------------------------------------------------------------------------
Zone I: Weighted average grade 2.0 4.29 0.013 0.142 167.8
-------------------------------------------------------------------
TC14 Zone II Weighted average grade 1.5 5.75 4.6 0.034 90.5
-------------------------------------------------------------------
Zone III: Weighted average grade 7.5 0.79 0.78 0.004 10.8
---------------------------------------------------------------------------
TC17 Weighted average grade 40.5 1.44 1.71 0.009 5.4
---------------------------------------------------------------------------
TC18 Weighted average grade 18.0 0.01 1.79 0.003 0.9
---------------------------------------------------------------------------
TC20 Weighted average grade 3.0 0.73 1.36 0.016 19.1
---------------------------------------------------------------------------
TC21 Weighted average grade 3.0 4.28 0.35 0.006 27.1
---------------------------------------------------------------------------
TC22 Weighted average grade 3.0 0.21 0.22 6.635 2.4
---------------------------------------------------------------------------


The assay results for Grab samples listed below.
--------------------------------------------------
Location Sample Pb% Zn% Cu% Ag g/t
--------------------------------------------------
Current D706H1 1.07 0.87 9.050 4080.0
trench area D718H2 0.37 0.73 1.200 345.0
D1009H1 0.84 0.80 0.100 37.1
D1183H1 0.19 0.08 0.580 202.0
D1184H1 1.69 0.71 0.026 72.8
D1185H1 4.90 1.28 0.029 144.0
D1186H1 0.21 0.22 1.250 508.0
D1198H1 0.52 2.17 0.026 6.8
D1205H1 2.85 0.43 0.001 12.6
D1208H1 0.95 0.31 0.001 6.2
D1210H1 0.19 0.62 0.009 3.0
D1658H1 10.46 1.50 0.730 43.2
D1665H1 13.46 29.98 0.068 44.0
D1668H1 0.51 1.46 24.830 8.0
D1668H2 0.48 0.54 1.170 12.0
D1681H1 0.45 1.60 0.078 2.8
NB001 12.18 13.62 0.010 31.9
NB002 84.57 0.39 0.008 172.0
NB003 1.68 1.72 0.008 4.5
NB004 0.69 0.68 4.030 998.0
NB005 0.96 6.93 0.066 35.6
NB006 0.33 1.10 7.030 1537.0
NB007 0.45 0.06 0.035 19.6
NB008 0.79 1.15 0.460 8.3
NB009 0.36 1.94 18.250 14.4
NB010 2.27 3.85 0.059 32.4
--------------------------------------------------
Out of DHPM1H1 1.38 0.76 6.550 3640.0
current DHPM1H2 0.79 0.78 4.390 1620.0
trench area D114H1 0.02 0.04 6.370 21.6
D511H1 0.36 0.38 0.081 10.1
D550H1 8.65 2.70 0.017 26.9
D608H1 1.08 0.73 0.015 14.6
D695H1 0.02 0.02 1.350 10.3
D718H1 9.56 36.38 0.110 298.0
D724H1 0.74 0.34 1.270 289.0
D1110H1 2.89 0.63 0.014 26.6
D1203H1 0.62 0.26 0.004 20.4
D1203H2 12.21 0.08 0.450 273.0
D691H1 0.04 0.08 0.170 63.1
DHPM2H1 0.03 0.05 0.094 29.6
DHPM2H2 1.57 2.85 5.600 400.0
D1570H1 0.65 0.24 0.110 3.9
D1579H1 0.37 0.15 0.001 1.8
D1633H1 4.18 0.75 0.290 11.2
D1636H1 0.38 0.41 0.026 26.6
D1638H1 0.12 0.85 0.160 3.3
D1641H1 0.19 0.30 1.700 384.0
D1654H1 0.58 1.30 0.052 9.5
--------------------------------------------------
D163 means No 163 grab site


A soil sampling survey with a grid 200 m by 20 m was completed, demonstrating very high geochemical background of Pb, Zn, Ag, Cd and Cu. A total of 8,723 soil samples were taken with average values of Pb 254.9 ppm and maximum 24,526.0 ppm; Zn 284.1 ppm and maximum 82,108.4 ppm; Ag 0.416 ppm and maximum 44.5 ppm; Cd 1.44 ppm and maximum 231 ppm and Cu 25.1 ppm and maximum 1,198.6 ppm.

Based on these encouraging preliminary exploration results, Qinghai Found has planned a significant exploration program for 2008, including 30,000 meters drilling, tunneling and metallurgical study with an intention to define a resource base that satisfies the Chinese government's minimum requirement to apply for a mining permit for silver/lead/zinc mine, that is, 1,000 tonne per day mining/milling capacity with a mine life of 10 years.

Quality Control of Assay results

The samples were collected by QGS, a Qinghai Provincial government agency in charge of exploration of mineral resource in the Province, supervised by Qinghai Found. The samples were assayed in Qinghai Assay Center of Nonferrous Metals (ISO9001 certified), Qinghai Chaidamu Lab of Geological Exploration Team (ISO9001 certified) and Langfang Lab, Institute of Geophysical and Geochemical (IGGE-LAB, ISO9001 certified).

The sample preparation consists of drying, crushing, splitting of samples to 150 grams, then the samples are pulverized to 200 mesh. Silver, lead, zinc, and copper were analyzed by a 3-hour hot aqua regia digestion on 10-gram samples with an AA/ICP finish.

Mike Hibbitts P.Geo., is the Qualified Person on the project under NI 43-101.

Announcement of Release Date for Third Quarter Results

Silvercorp will release its financial results for the 3rd quarter ended December 31, 2007 on Thursday, February 14, 2008 after market close.

About Silvercorp Metals Inc.

Silvercorp Metals Inc. is engaged in the acquisition, exploration, and development of silver related mineral properties focusing in the People's Republic of China ("China"). Currently, the Company is operating and developing four Silver-Lead-Zinc mines at the Ying Mining District, Henan Province, owned through its 77.5% and 70% Chinese subsidiary companies, respectively and is also exploring the Nao-Bao Polymetalic Project in Qinghai Province, China.

The Company is on the S&P/TSX Composite Index, the S&P/TSX Global Gold Index, and S&P/TSX Global Mining Index.

CAUTIONARY DISCLAIMER -- FORWARD LOOKING STATEMENTS

Statements in this press release other than purely historical information, including statements relating to the Company's future plans and objectives or expected results, constitute forward-looking statements. Forward-looking statements are based on numerous assumptions and are subject to all of the risks and uncertainties inherent in the Company's business, including risks inherent in mineral exploration, development, and mining. Production and revenue projections are based not on mineral reserves but on mineral resources which do not have demonstrated economic viability. As a result, actual results may vary materially from those described in the forward-looking statements. There can be no assurance that such forward-looking statements will prove to be accurate, as actual results and future events could differ materially from those anticipated in such statements. Accordingly, readers should not place undue reliance on such statements. The Company does not undertake any obligation to update any forward-looking statements that are incorporated by reference herein, except in accordance with applicable securities laws. The Company expressly disclaims any obligation to update any forward-looking statements. We seek safe harbour.

Contact Information

  • Silvercorp Metals Inc.
    Rui Feng
    Chairman & CEO
    (604) 669-9397
    or
    Silvercorp Metals Inc.
    Lorne Waldman
    Corporate Secretary
    (604) 669-9397
    (604) 669-9387 (FAX)
    Email: info@silvercorp.ca
    Website: www.silvercorp.ca