EX-99.1 2 exhibit99-1.htm TECHNICAL REPORT UPDATE EFFECTIVE JUNE 18, 2009 Exhibit 99.1

Exhibit 99.1



AMC Mining Consultants (Canada) Ltd

 
BC0767129
 
 
Suite 1330, 200 Granville Street
VANCOUVER, BC V6C 1S4
CANADA
T + 1 604 669 0044
F + 1 604 669 1120
E amccanada@amcconsultants.ca

NI 43-101 Technical Report Update on the
GC Ag-Zn-Pb Project in
Guangdong Province,
People’s Republic of China

Report Prepared for

SILVERCORP METALS INC

 

 Report Prepared by

Brian O’Connor P.Geo.

AMC File 709003

Effective Date: June 18, 2009

Signing Date: June 22, 2009



Silvercorp Metals Inc
NI 43-101 Technical Report Update on the GC Ag-Zn-Pb Project in
Guangdong Province, People’s Republic of China

 


 

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Silvercorp Metals Inc
NI 43-101 Technical Report Update on the GC Ag-Zn-Pb Project in
Guangdong Province, People’s Republic of China

CONTENTS

1   SUMMARY 6
2   INTRODUCTION 11
    2.1   Terms and Abbreviations 12
3   RELIANCE ON OTHER EXPERTS 14
4   PROPERTY DESCRIPTION AND LOCATION 15
    4.1   Exploration Permit 15
    4.2   Mining Permit 19
5   ACCESSIBILITY,CLIMATE,RESOURCES,INFRASTRUCTURE AND PHYSIOGRAPHY 20
6   HISTORY 21
    6.1   History of Mining 23
    6.2   History of Mineral Resources 24
7   GEOLOGICAL SETTING 26
    7.1   Regional Geology 26
    7.2   Property Geology 28
        7.2.1  Stratigraphy 29
        7.2.2  Structures 30
    7.3   Magmatic Activities 31
8   DEPOSIT TYPES 33
9   MINERALIZATION 34
    9.1   Vein Structure 34
    9.2   Mineralogy 34
    9.3   Characteristics of the Mineralized Veins 36
    9.4   Other Mineralization Features 39
10   EXPLORATION 42
    10.1    Soil Geochemical Program 42
    10.2    Topographic and Geological Mapping 44
    10.3    Trenching and Pitting 44
    10.4     Drilling 45
11   DRILLING 46
12   SAMPLING METHOD AND APPROACH 52

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Silvercorp Metals Inc
NI 43-101 Technical Report Update on the GC Ag-Zn-Pb Project in
Guangdong Province, People’s Republic of China

13   SAMPLE PREPARATION, ANALYSES, AND SECURITY 54
14   DATA VERIFICATION 56
15   ADJACENT PROPERTIES 59
16   MINERAL PROCESSING AND METALLURGICAL TESTING 61
    16.1  Mineralogy and Occurrences of the Beneficial Elements 61
    16.2  Mineral Processing and Metallurgical Testing 63
    16.3  Bulk Density 66
17   MINERAL RESOURCE AND RESERVE ESTIMATE 68
    17.1  Resource Data and Statistics 72
    17.2  Resource Estimates 73
18   OTHER RELEVANT DATA AND INFORMATION 84
    18.1  Mining Method 84
19   INTERPRETATION AND CONCLUSIONS 86
20   RECOMMENDATIONS 87
21   REFERENCES 89
22   DATE AND SIGNATURE PAGE 90
23   CERTIFICATE OF QUALIFIED PERSON 91

TABLES

Table 1.1  2008 Exploration Program 6
Table 1.2  Mineral Processing and Metallurgical tests as of April 2009 8
Table 1.3  Measured and Indicated Mineral Resources 9
Table 1.4  Inferred Mineral Resources 9
Table 2.1  Terms and Abbreviations 12
Table 4.1  Property Boundary of the GC Property 16
Table 4.2  The GC Exploration Permit owned by Anhui Yangtze 17
Table 6.1  Historical Exploration Work 2001-2007 22
Table 6.2  Record of Drilling 2001-2007 23
Table 6.3  Details of Underground Workings 24
Table 6.4  April 2008 Resources for the GC Project 25
Table 9.1  Dimensions and Occurrences of Mineralized Veins 37
Table 10.1  Main Programs Conducted on the GC Property by Silvercorp 42
Table 10.2  Trenches and Pits Completed by Silvercorp in 2008 44

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Silvercorp Metals Inc
NI 43-101 Technical Report Update on the GC Ag-Zn-Pb Project in
Guangdong Province, People’s Republic of China

Table 10.3  2008 Drilling in Metres by Core Diameter 45
Table 11.1  Meters of various drill core sizes drilled in different years 47
Table 12.1  Individual Vein Characteristics 53
Table 14.1  Independent Core Sample Verification 56
Table 16.1  Summary of Gaocheng Samples Used for Metallurgical Testing 61
Table 16.2  Summary of Mineralogy of the Samples Taken From Gaocheng Deposit 62
Table 16.3  Head Grade of the Blended Test Sample 63
Table 16.4  Results of Locked Cycle Test 64
Table 16.5  Results of the Locked Cycle Test (With Optimized Reagent Dosage) 64
Table 16.6  Results of Recovering Sn Using Gravity Test 66
Table 16.7  Results of Recovering Copper from Lead Concentrate 66
Table 16.8  Variation in Bulk Density Measurements 67
Table 17.1  Top-cuts of different veins 70
Table 17.2  Number of Samples and Assays in Resource Estimates for Different Veins  72
Table 17.3  Resources at 50g/t Recovered Silver Equivalent Cut-off Intervals 73
Table 17.4  Summary of Mineral Resources 73
Table 17.5  Measured and Indicated Resource Estimate by Vein 75
Table 17.6  Inferred Resource Estimate by Vein 76
Table 20.1  Planned 2009 Budget for the GC Project 87

FIGURES

Figure 4.1  GC Property Location Map 15
Figure 4.2   Adit at site ML5 17
Figure 4.3  A waste dump in the foreground 18
Figure 4.4  Topography of the GC Project Area 18
Figure 7.1  Tectonic Geology Map of Southern China 26
Figure 7.2  Regional Geological Map 28
Figure 7.3  Property Geology Map 29
Figure 7.4  Two sets of joints (NE- and NWW-striking) were exposed in trench TC059  30
Figure 7.5  Fault Planes 31
Figure 7.6  Multiple Ductile and Tension Movements 31
Figure 7.7  Granite Footwall Elevation Contour Map 32
Figure 9.1  Polished Core Shows Different Minerals and Alterations in Vein V2 35
Figure 9.2  Pb, Zn, and Ag grade contour of Vein V2 40
Figure 9.3  Pb, Zn, and Ag grade contour of Vein V6 41
Figure 10.1  Soil Geochemical Anomalies of Ag, Pb, And Zn on the GC Property 43

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Silvercorp Metals Inc
NI 43-101 Technical Report Update on the GC Ag-Zn-Pb Project in
Guangdong Province, People’s Republic of China

Figure 10.2  Locations of Trenches and Pits on the GC property 45
Figure 11.1  Drill-hole locations in the GC property 46
Figure 11.2  Drill Core Storage Facility 47
Figure 11.3  Cross Section on Exploration Line 24 48
Figure 11.4  Cross Section on Exploration Line 28 49
Figure 11.5  Cross Section on Exploration Line 32 50
Figure 11.6  Cross Section on Exploration Line 406 51
Figure 15.1  Zonation of Mineralization in the Daganshan Mineralization Field 60
Figure 16.1  General Locked Cycle Flowsheet 64
Figure 16.2  Complete Locked Cycle Flowsheet 65
Figure 17.1  Silver Grade Tonnage Curve 77
Figure 17.2  Lead Grade Tonnage Curve 77
Figure 17.3  Zinc Grade Tonnage Curve 78
Figure 17.4  Recovered Silver Equivalent Grade Tonnage Curve 78
Figure 17.5  Longitudinal Projection of V2-0 Vein 79
Figure 17.6  Longitudinal Projection of V2 Vein 80
Figure 17.7  Longitudinal Projection of V7-0 Vein 81
Figure 17.8  Longitudinal Projection of V7 Vein 82
Figure 17.9  Longitudinal Projection of V10-1 Vein 83

APPENDICES

Appendix I Permits
Appendix II Internal Check Assays
Appendix III External Check Assays
Appendix IV Silvercorp Check Assays
Appendix V Specific Gravities
Appendix VI Drill Hole Collar and Downhole Survey Data
Appendix VII Core Recoveries

 


 

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Silvercorp Metals Inc
NI 43-101 Technical Report Update on the GC Ag-Zn-Pb Project in
Guangdong Province, People’s Republic of China

1 SUMMARY

AMC Mining Consultants (Canada) Ltd (AMC) was commissioned by Silvercorp Metals Inc. (Silvercorp) to review a mineral resource estimate prepared by Silvercorp and to provide Silvercorp with an independent technical report compliant with Canadian National Instrument 43-101 (NI 43-101) on the GC (Gaocheng) Ag-Zn-Pb Project in Guangdong province, China.

The technical review was conducted in two phases:

  • Phase 1 – AMC Principal Geologist Brian O’Connor undertook a site visit during the period from March 27 through March 30, 2009. Inspection of the properties, laboratories and relevant data was conducted. Interviews with related technical personnel and the collection of check samples were also undertaken.
  • Phase 2 – Complete a draft of the technical report for Silvercorp’s review and comment to be followed by a finalised report.

Silvercorp is exploring the GC Ag-Zn-Pb property through its 95%-owned joint venture company, Yangtze Mining Ltd. Silvercorp acquired a 95% ownership of the property in April, 2008. The GC Ag-Zn-Pb is an advanced exploration project and the subject of an April 2008 Technical Report prepared by SRK Consulting Engineers and Scientists.

Subsequent to the 2008 Technical report, Silvercorp undertook an exploration program summarized in Table 1.1. The results from the diamond drilling have been incorporated in the updated Resource estimate. The soil sampling program resulted in the identification of three new Ag-Zn-Pb anomalies on the southern part of the property where no drilling had been previously conducted. A full list of the historical exploration programs is presented in Table 6.1.

Table 1.1 2008 Exploration Program

Program Type Unit of Measure Units

1:10,000 Soil Profiling

km

10

Diamond Drilling

m

10,083

Trenching

m3

740

Soil Samples

sample

535

Chemical Analysis

sample

2,139


The terms and conditions of the exploration permit for the GC property allowed for diamond drilling and trenching to be used as exploration tools, but the use of explosives on the property was not allowed until a mining permit had been issued. Silvercorp had recently completed the application process for the mining permit at the time of the site visit. AMC was informed by Silvercorp that approval was expected between July and December of 2009. The collection of bulk test material and exploration drifting to and on the mineralized veins would be allowed at that time. 

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Silvercorp Metals Inc
NI 43-101 Technical Report Update on the GC Ag-Zn-Pb Project in
Guangdong Province, People’s Republic of China

AMC reviewed the geology of the project, reviewed and verified a resource estimate completed by Silvercorp’s geologists, and believes that further work to advance the project is warranted.

Geologically, the project area is located in the north-eastern margin of Luoding Basin, the middle portion of uplift in the Hua’nan (South China) Fold System. The deposit occurs on the intersection of a north-easterly striking fault zone and a near east-westerly striking fault zone. North-east striking structures and arc structures form the basic geological framework of the region. Outcrop include Late Proterozoic Sinian sedimentary clastics and carbonate rocks, which host Ag-Pb-Zn polymetallic deposits in the region, Paleozoic Ordovician, Silurian, Devonian and Carboniferous sedimentary clastics and carbonate rocks which host some Cu-Pb-Zn, Mn and Au-Ag deposits, Mesozoic / Triassic coal-bearing clastics rocks, and Cretaceous red clastics rocks. Intrusive rocks occur in the central area of an arc/ring structure, include Paleozoic granite batholiths, and Mesozoic granite stocks and dykes. The stocks and dykes intrude in the inner zone of the arc/ring structure, and are closely related to the Ag-Pb-Zn polymetallic mineralization in the region.

The mineralization on the GC property is structurally controlled occurring in veins formed along fault traces which are enveloped by an alteration zone. The alteration zone may reach a few metres from the vein occurring in both the hanging and footwall. There are a total of 27 Ag-Zn-Pb veins identified on the GC property; they are divided into two groups – the NWW striking and NE striking. There are 23 of the NWW-striking group which typically dip toward SE at an angle of 60-85°. They are numbered from V2 through V9 and V13 through V15. A number of the veins have a subset designation. The four NE-striking veins (with subset designations) are numbered from V10 through V12 and typically dip to the southeast at an angle of 60-75°. The vein V12 is not included in the Resource estimate. In addition vein V15 was not included in the 150 g/t AgEq Resource estimate. The main mineralized veins are series V2, V6, V7 and V9. These vein series represent 83% of the Measured and Indicated Resource in terms of tonnes. The vein series V2 represents 53% of the measured and indicated resource in terms of tonnes.

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Silvercorp Metals Inc
NI 43-101 Technical Report Update on the GC Ag-Zn-Pb Project in
Guangdong Province, People’s Republic of China

Prior to Silvercorp’s acquisition of the GC Property, illegal mining activity produced several tunnels on the property and the extraction of mineralized material. The Guangdong Institute of Geological Survey (GIGS) developed 66m of tunnel in 2002. The tunnelling intersected the V5 and V5-1 veins with minor Ag-Zn-Pb mineralization enveloped by alteration haloes ranging from 0.6 to 1.8 m wide. The quantity and quality of the mineralization extracted has not been reconciled. Details of the underground workings are recorded in Table 6.3. Yangtze Mining mapped and sampled the tunnels where accessible. Assay results of the tunnel samples were used in resource estimation. AMC visited the tunnel adits but the entrances to the tunnels were blocked with barricades. The extracted mineralization has not been accounted for in the Resource estimate.

In order to optimise a processing flowsheet for the recovery of lead, zinc, silver, tin and sulphur from the GC mineralization, the Hunan Non-ferrous Metals Research Institute (HNMRI) was contracted to perform mineral processing and metallurgical tests in February through April of 2009. The test sample was a composite of 158 drill core sample rejects from 2008 drill program. A summary table of the results is listed below in Table 1.2.

Table 1.2 Mineral Processing and Metallurgical tests as of April 2009

Product Weight
(%)
Grades Recovery Rate (%)

Pb (%)

Zn (%) S (%) Ag (g/t) Pb(%) Zn(%) S(%) Ag(%)

Lead Con.

2.63

46.35

9.53

 

3009.23

84.57

7.75

 

62.77

Zinc Con.

5.84

0.92

48.95

 

268.4

3.73

88.42

 

12.43

Sulphur Con.

14.65

0.81

0.41

42.52

189.74

8.23

1.86

61.31

22.05

Tailing

76.88

0.065

0.083

 

4.5

3.47

1.97

 

2.74

Ore

100.00

1.44

3.23

10.16

126.07

100.00

100.00

 

100.00


To demonstrate a reasonable prospect for economic extraction a cut-off grade of 150 g/t silver equivalent (AgEq) was applied to the Resource blocks. The AgEq equation included the recovery rates for silver, lead and zinc as described in Table 1.2 with the exception of the benefit of sulphur in concentrate, was not included in the AgEq, but the saleable portion of the silver contained in a sulphur concentrate was. In addition to silver, lead and zinc mineralization the GC deposit has tin mineralization that is not insignificant. Further study is required prior to a decision on the economic recovery of tin, thus tin was not used in the AgEq equation for this report.

Silvercorp employed the polygonal method to estimate mineral resources for the GC property, the same method used at its other operations in China. Details of the methodology are discussed in detail in Section 17. The Mineral Resources at a recovered silver equivalent cut-off grade of 150 g/t are summarized below in Table 1.3 and Table 1.4. The AgEq formula and price assumptions are discussed in detail in Section 17.

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Silvercorp Metals Inc
NI 43-101 Technical Report Update on the GC Ag-Zn-Pb Project in
Guangdong Province, People’s Republic of China

Table 1.3 Measured and Indicated Mineral Resources

Resource
Classification
Tonnes GRADE
    Ag (g) Pb % Zn %

Measured

374,000

233

1.83

3.19

Indicated

6,034,000

132

1.47

3.35

Total

6,408,000

138

1.49

3.34


Table 1.4 Inferred Mineral Resources

Resource
Classification
Tonnes GRADE
    Ag (g) Pb % Zn %

                       Inferred

7,892,000

121

1.45

2.70


AMC is of the opinion that Silvercorp has sufficient drilling and sampling and has completed adequate bench scale metallurgical testing to complete a prefeasibility study or begin a feasibility study on the GC Project. The study would include a mine design based on the resource model, an investigation regarding a suitable scale of operation as well as preliminary studies completed on geotechnical, environmental, and infrastructure requirements. Cost estimates based on factored or comparative prices should be researched and applied to the Resource blocks in the Resource model for Resource to Reserve conversion parameters.

Silvercorp has a good understanding of the geology and mineralized trends on the property. AMC notes that the veins outlined to date have not been closed off by drilling and it is anticipated that ongoing exploration will continue to increase the overall resource and upgrade the classification of known resources.

Mineral Resources estimates were prepared by Silvercorp and reviewed and classified by AMC following CIM best practices. The result of the update was an increase of 250% in the sum of the Measured and Indicated Resources for the project.

As of May 2009, Silvercorp has made the following progress in applying for a mining permit and advancing the project towards production:

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Silvercorp Metals Inc
NI 43-101 Technical Report Update on the GC Ag-Zn-Pb Project in
Guangdong Province, People’s Republic of China

  • An Environmental Assessment Report was completed in March 2009 and passed a review by an expert panel appointed by the Environmental Production Bureau of Guangdong. Pending receipt of the final approval, a mining permit application can be submitted to the Ministry of Land and Resources of China in Beijing.
  • Silvercorp has engaged a Chinese engineering firm with Class A qualifications in mine and mill design to provide a full mine and mill design for the project.

Silvercorp’s mining experience includes majority ownership of four mines in the Ying Mining District of Hunan Province in central China held in two Sino-Foreign Cooperative Joint Venture companies. In addition, Silvercorp owns and operates two flotation mills in the Ying Mining District.

The company has budgeted approximately $4 million for the GC Project in 2009 (fiscal 2010) for exploration, mine and mill designs, permitting, associated reports and reporting. The exploration program will be composed of approximately 3,000m of diamond drilling. A Chinese firm has been engaged for the mine and mill design.
AMC has reviewed Silvercorp’s exploration and development plans and budget and is of the opinion that they are well conceived and appropriate to the stage of the project. AMC recommends Silvercorp conduct the program as proposed subject to funding and any other findings or events during the exploration and design phase. AMC makes the following recommendations with respect to resource estimation:

1)      AMC would recommend that Silvercorp undertake variography studies to refine the understanding of the grade distribution and utilize a kriging or inverse distance weighting approach to grade interpolation prior to future resource and reserve estimations.
2)      Continue the wax immersion bulk density measurements and continue to analyse the data on a vein by vein basis. AMC would suggest a sulphur or sulphide analysis as a basis for the bulk density assumptions.
3)      Carry out further studies into the potentially economic Sn and S components of the milling process.
4)      Carry out further metallurgical and mining studies into the oxidized zone prior to a future resource and reserve estimation.
5)      Consider the use of either electro-magnetic or induced polarization/resistivity surveys to help predict the orientation and extent of the structures bearing pyrite and/or galena.
6)      AMC recommends that the underground workings be reopened once the mining permit has been granted and that consideration be given to collecting a bulk sample and undertaking a test mining program.

 

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Silvercorp Metals Inc
NI 43-101 Technical Report Update on the GC Ag-Zn-Pb Project in
Guangdong Province, People’s Republic of China

2 INTRODUCTION

AMC Mining Consultants (Canada) Ltd (‘AMC’) was commissioned by Silvercorp Metals Inc . (‘Silvercorp’) to review and examine the latest resource data on the GC Ag-Zn-Pb Project in China prepared by Silvercorp’s geological staff.

In 2008, Silvercorp undertook a 10,082.6m diamond drill program which represents 43% of all the recorded drilling on the property. The Silvercorp geological staff updated the geological model for the property and re-estimated a Mineral Resource with the inclusion of the findings of the 2008 data. The result of the update was an increase of 250% in the sum of the Measured and Indicated Resources for the project.

The review of the GC Project was based on published material researched by AMC, as well as data, professional opinions and unpublished material submitted by the staff of Silvercorp Metals Inc. or its subsidiaries. Much of the data came from reports prepared and provided by Silvercorp. The review of the resource estimation parameters was conducted both during the site visit to the GC Project and during the audit of the resource estimate in May, 2009. A previous report on the project was completed by SRK Consulting Engineers and Scientists (‘SRK’) for Silvercorp on the GC (Gaocheng) Ag-Zn-Pb Project and the Shimentou Au-Ag-Pb-Zn project in 2008. SRK prepared a NI43-101 technical report dated April 2008 (Dr. Anson Xu et.al. 2008).

Mr. Brian O’Connor, Principal Geologist of AMC, visited the GC property in order to review and act as the Qualified Person for a NI 43-101 compliant Technical Report providing an update on the project and resource estimate. The new resource estimate includes resources newly identified after Silvercorp acquired the property. From March 27th through March 30th, 2009, Mr. O’Connor visited the GC Project. During his visit, Mr. O’Connor reviewed exploration data and drill cores, visited drill exploration sites, surface trenches, outcrops and adits. In addition, Mr O’Connor completed a site visit of the ALS Chemex assay facility. The principal focus of the site visits was to examine and audit the current resource information.

All currency amounts and commodity prices are stated in US dollars. Quantities are stated in metric (SI) units. Commodity weights of measure are in grams (g) or percent (%) unless otherwise stated. Table 2.1 contains a glossary of terms and abbreviations.

This report includes the tabulation of numerical data which involves a degree of rounding for the purpose of resource estimation. AMC does not consider any rounding of the numerical data to be material to the project.

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Silvercorp Metals Inc
NI 43-101 Technical Report Update on the GC Ag-Zn-Pb Project in
Guangdong Province, People’s Republic of China

This report has been produced in accordance with the Standards of Disclosure for Mineral Projects as contained in NI 43-101 and accompanying policies and documents. NI 43-101 utilises the definitions and categories of mineral resources and mineral reserves as set out in the Canadian Institute of Mining, Metallurgy and Petroleum (CIM) Standards on Mineral Resources and Mineral Reserves Definitions and Guidelines (CIM Code).

2.1 Terms and Abbreviations

Table 2.1 Terms and Abbreviations

Abbreviation Name

%

percent(age)

<

less than

>

greater than

Ag

silver

AgEq

silver equivalent

AMC

AMC Mining Consultants (Canada) Ltd

ASL

Above Sea Level

Au

gold

Bi

bismuth

CIM

Canadian Institute of Mining, Metallurgy and Petroleum

cm

centimetre

Cu

copper

g

gram

g/t

gram/tonne

GC

Gaocheng

GIGS

Guangdong Institute of Geological Survey

HQ

drillcore size

kg

kilogram

km

kilometre

KV

kilovolt

m

metre

mm

millimetre

Mo

molybdenum

NE

northeast

NI 43-101

National Instrument 43-101

NQ

drillcore size

NWW

north west west

o C

degree Celsius

oz

ounce

Pb

Lead

PQ

drill core size

QA/QC

Quality Assurance / Quality Control

SEDAR

System for Electronic Document Analysis and Retrieval

SG

Specific Gravity

SI

System International d'Unites

Sn

tin


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Silvercorp Metals Inc
NI 43-101 Technical Report Update on the GC Ag-Zn-Pb Project in
Guangdong Province, People’s Republic of China

    (Table 2.1 cont’d)
Abbreviation Name

SRK

SRK Consulting

SW

southwest

t

tonne

US$

United States Dollar

W

tungsten

WO3

tungsten oxide

Zn

zinc

 

1troy ounce = 31.1035 grams

 

1 tonne = 2204.62 pounds




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Silvercorp Metals Inc
NI 43-101 Technical Report Update on the GC Ag-Zn-Pb Project in
Guangdong Province, People’s Republic of China

3 RELIANCE ON OTHER EXPERTS

AMC in preparing this report has relied on various geological maps, reports and other technical information provided to AMC by Silvercorp. AMC has reviewed and analysed the data provided and drawn its own conclusions augmented by its direct field observations. The key and relevant information used in this report is listed in the References chapter at the end of this report.

Much of the original information was in Chinese, prepared by Mr. Qiang Wang, Chief Geologist of Anhui Yangtze, and his staff. Translations of key and relevant technical documents and data into English were done by Mr. Hongen Ma, M Sc. (Geology), and Mr. Myles Gao, P Geo. Both are fluent in Chinese and competent in English. Legends and other text on many of the maps were translated by Bei Sun, a bilingual draftsperson for Silvercorp. The author believes the translations to be credible and generally reliable but cannot attest to their absolute accuracy.

Silvercorp’s internal technical information reviewed by AMC was adequately documented, comprehensive and of good technical quality. It was gathered, prepared and compiled by competent technical persons. Silvercorp’s external technical information was prepared by reputable companies and AMC has no reason to doubt its validity.

While AMC has reviewed the documents and agreements provided by Silvercorp under which it holds title to the GC Project we do not offer an opinion in these areas. We are not experts in land, legal, environmental and related matters and therefore we have relied (and believe there is a reasonable basis for this reliance) in this report on Silvercorp who contributed the information regarding legal, land tenure, corporate structure, permitting, land tenure and environmental issues, property description and location.

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Silvercorp Metals Inc
NI 43-101 Technical Report Update on the GC Ag-Zn-Pb Project in
Guangdong Province, People’s Republic of China

4 PROPERTY DESCRIPTION AND LOCATION

The GC property is located in Yun’an County, Yunfu City, Guangdong Province, People’s Republic of China.

Figure 4.1   GC Property Location Map

    

4.1 Exploration Permit

In 2008, Silvercorp acquired 100% of the shares of Yangtze Gold Ltd. (Yangtze Gold), a private British Virgin Island (BVI) company, which in turn wholly owns Yangtze Mining Ltd. (Yangtze Mining). Yangtze Mining owns a 95% interest in a Sino-Foreign joint venture company, Anhui Yangtze Mining Co. Ltd. (Anhui Yangtze). The exploration permit for the GC Project is owned by Anhui Yangtze. A copy of original permit is attached in Appendix I.

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Silvercorp Metals Inc
NI 43-101 Technical Report Update on the GC Ag-Zn-Pb Project in
Guangdong Province, People’s Republic of China

The boundaries of the exploration permit have not been surveyed and no boundary markers have been staked in the ground. The GC Project exploration permit is under the process of conversion to a mining permit. Silvercorp has informed AMC that the significant documents required for the mining permit application have been prepared and submitted. Silvercorp expects the mining permit to be issued in late of 2009. Explosives cannot be used on the property until the mining permit has been issued.

The grid system used for the GC Project is the Beijing Geodetic Coordinate System l954. Altitude is referred to the Yellow Sea 1956 Elevation System. The project survey control points were generated from three nearby national survey control points.

The village of Gaocheng is located within the GC Project boundary.

AMC is not aware of any additional royalties, back-in rights, payments, agreements, environmental liabilities or encumbrances particular to the property to other than those stated above.

Approximate boundaries of the GC Project area are as follows.

Table 4.1  Property Boundary of the GC Property

Point Geographic Coordinates            Gauss Coordinates
Longitude E Latitude N X Y
1 111 °532453 22 °552453 2537018.36 37591895.13
2 111 °552303 22 °552453 2537036.88 37594887.25
3 111 °552303 22 °542453 2535190.97 37594898.85
4 111 °532453 22 °542453 2535172.45 37591906.37

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Silvercorp Metals Inc
NI 43-101 Technical Report Update on the GC Ag-Zn-Pb Project in
Guangdong Province, People’s Republic of China

Table 4.2 The GC Exploration Permit owned by Anhui Yangtze

Permit No. No. 4400000730248

Owner

Anhui Yangtze Mining Co. Ltd.

Location

Yun’an County, Guangdong Province

Name of the Project

General prospecting of silver multi-metallic mineral resource at

Gaocheng, Yunfu City, Guangdong Province

Map Sheet No.

F49E007016

Mine Area

5.54 Km2

Valid Period

2007-12-29 to 2009-11-24

Issued Date

Dec. 29 2007

Exploration unit

Guangdong Provincial Institute of Geological Survey


Figures 4.2 through 4.4, supplied by Silvercorp and validated by AMC, demonstrate some of the features of the GC Project area.

Figure 4.2 Adit at site ML5

  

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Silvercorp Metals Inc
NI 43-101 Technical Report Update on the GC Ag-Zn-Pb Project in
Guangdong Province, People’s Republic of China

Figure 4.3 A waste dump in the foreground

 

Figure 4.4 Topography of the GC Project Area

 

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Silvercorp Metals Inc
NI 43-101 Technical Report Update on the GC Ag-Zn-Pb Project in
Guangdong Province, People’s Republic of China

4.2 Mining Permit

In compliance with Chinese regulations for obtaining a mining license, a Chinese qualified agent, the Guangdong Geological Survey Institute (GGSI) has also prepared a Geological Report on the GC Permit dated September 30, 2007. The report summarizes the geology and exploration of the GC permit, and contains a resource estimate conducted in accordance with Chinese Resource Standards. The GGSI resource estimate was accepted by the Mineral Resources and Reserves Examination Center (MRREC) of the Ministry of Land and Resources PR China (MLR) based in Beijing which issued a "Resource Estimate Confirmation Letter" on December 24, 2007, which has, in turn, been accepted for filing by the Department of Land and Resource of Guangdong Province, thus allowing Anhui Yangtze to apply for a mining license on the GC Permit, based on the resource estimate.

Silvercorp has progressed on the mining permit application for the GC Project. The key reports required for applying for a mining permit include a Resource Utilization Plan Report, an Environmental Assessment Report, a Geological Hazards Assessment Report and a Soil Conservation Plan Report. The Company has received the notice of approval from the MLR for the start of the mining permit application on the project and compilation of the various reports are either underway or are to be commenced shortly.

Once all required reports are completed and positive reviews or approvals are received, the application for the mining permit will be filed with the MLR in Beijing. Based on the working guideline published by the MLR, it takes 45 business days for the MLR to make a decision after a completed application is submitted.

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Silvercorp Metals Inc
NI 43-101 Technical Report Update on the GC Ag-Zn-Pb Project in
Guangdong Province, People’s Republic of China

 
5 ACCESSIBILITY, CLIMATE, RESOURCES, INFRASTRUCTURE AND PHYSIOGRAPHY

The GC Project is located around Gaocheng Village of Gaochun Township, Yun’an County, Guangdong Province, China. Altitudes in the region range from 78.0m to 378.0m above sea level (ASL), usually 150-250m ASL, with relative differences of 50-150m. Vegetation is in the form of secondary forests of pine and hardwoods, bushes and grasses. Top soil covers most of the ground. Outcrops of bedrocks can only be observed in valleys.

The GC Project is located west of the metropolitan city of Guangzhou, the capital of Guangdong Province. Guangzhou is located about 120 km northwest of Hong Kong and has a population of almost 12 million registered residents and temporary migrant inhabitants in December of 2007, according to an economic report released by the Guangzhou Academy of Social Science. It is serviced by rail and daily flights from many of China’s larger population centres. Access to the GC Project from Guangzhou is via 178 km of four lane express highway to Yunfu, then 48 km of paved road to the project site. A railway connection from Guangzhou to Yunfu is also available.

The region belongs to sub-tropical monsoon climate with average annual temperature of 20-22oC. Rainfall is mainly concentrated in spring and summer from March to August. Winters feature short periods of frosting. The GC Project would be able to operate year round.

Streams are well developed in the area, the Hashui River flows in the GC Project area. There is a reservoir upstream of the GC Project area. Small hydro power stations are developed in the region that are connected to the provincial electrical grid. There is a 10KV power line across through the project area.

The topography offers a number of opportunities for waste rock and tailings storage proximal to the resource to 5 km from the resource.

The economy of Yun’an County mainly relies upon agriculture and some small township industrial enterprises. Labour is locally available, and technical personnel are available in Yunfu and nearby cities. The Gaocheng village is located within the GC project area.

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Silvercorp Metals Inc
NI 43-101 Technical Report Update on the GC Ag-Zn-Pb Project in
Guangdong Province, People’s Republic of China

6 HISTORY

Various state-sponsored Chinese Geological Brigades and companies have conducted geological and exploration work in the project area. Systematic regional geological surveys covering the area started in 1959. The following is a brief history of the exploration work in the area:

During 1959 to 1960, No. 763 Geological Brigade of Guangdong Bureau of Geology conducted a 1:200,000 regional geological survey and mapping, and regional prospecting of mineral resources in the area. A geological map and geological reports were published.

In 1964-1967, Comprehensive Study Brigade of Guangdong Bureau of Geology conducted general prospecting and 1:50,000 geological mapping in the area including the project area, and submitted a geological report.

In 1983, Geophysical Survey Brigade of Guangdong Bureau of Geology and Mineral Resources conducted a 1:200,000 airborne magnetic survey covering the project area.

In 1988, the Regional Geological Survey Brigade of Guangdong Bureau of Geology and Mineral Resources conducted a 1:200,000 stream sediment survey, which covers the project area.

In 1991, Geophysical Survey Brigade of Guangdong Bureau of Geology and Mineral Resources conducted a 1:200,000 gravity survey covering the project area.

In 1995, Ministry of Geology and Mineral Resources completed the compilation and interpretation of 1:1,000,000 geochemical, geophysical and remote sensing surveys covering the area.

During 1995 and 1996, Geophysical Survey Brigade of Guangdong Bureau of Geology and Mineral Resources conducted a 1:50,000 soil survey, and defined some large and intensive Pb, Zn, Ag, Sn, W and Bi geochemical anomalies, which covers the project area.

During 1990 and 2000, Guangdong Provincial Institute of Geological Survey conducted a 1:50,000 stream sediment survey which covers the project area, and defined several intensive comprehensive anomalies of Pb-Zn-Ag-Sn-Mn, leading to the discovery of GC deposit.

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Silvercorp Metals Inc
NI 43-101 Technical Report Update on the GC Ag-Zn-Pb Project in
Guangdong Province, People’s Republic of China

During 2001 and 2002, and again in 2004 and 2005, Guangdong Provincial Institute of Geological Survey conducted general prospecting at the GC Project area, and defined some mineralized bodies and estimated mineral resources of the GC deposit.

During 2006 and 2007, contracted by Yangtze Mining, the Guangdong Provincial Institute of Geological Survey conducted a detailed prospecting at the GC Project area, completed a 36-hole, 11,470m surface diamond drilling program and 1,964m3 of trenching and surface stripping, to update and upgrade the mineral resources of the GC deposit. A summary of the historical work between 2001 and 2007 is shown in Table 5.1. Table 5.2 contains a drill record for the same period.

Table 6.1 Historical Exploration Work 2001-2007

Program Unit Work completed
2001 - 2002 2004 - 2005 2006 - 2007  Total

1:10,000 Soil survey

km2

4.0

   

4.0

1:10,000 soil profiling

km

12.4

   

12.4

1: 5,000 Hydrogeological survey

km2

   

12.5

12.5

1:10,000 Geological survey

km2

15.0

   

15.0

1:5000 Geological survey

km2

 

5.3

 

5.3

1:2000 Geological survey

km2

   

4.5

4.5

1:2000 topographic survey

km2

   

4.5

4.5

Exploration line survey

km

3.8

2.0

6.7

12.5

Diamond drilling

m

1,010.3

983.6

11,469.8

13,463.7

Trenching (pitting)

m3

3,888.0

3,582.5

1,964.1

9,434.6

Tunnelling

m

66.0

   

66.0

Tunnel clean-up

m

197.2

 

302.6

499.8

Tunnel geological mapping and sampling

m

637.2

 

632.6

1,269.8

Control point survey

point

   

42.0

42.0

Survey of engineering points

point

 

23.0

222.0

245.0

Hydrogeological observation hole

point

   

2.0

2.0

Soil samples

sample

1,116.0

   

1,116.0

Chemical analysis samples

sample

454.0

182.0

2,849.0

3,485.0

Internal checking samples

sample

17.0

 

275.0

292.0

External checking samples

sample

   

150.0

150.0

Rock survey samples

sample

41.0

   

41.0

Thin and polishing sections

piece

34.0

8.0

27.0

69.0

Composite samples

sample

2.0

 

26.0

28.0

Spectrum analysis sample

sample

   

1.0

1.0

Small specific gravity samples

sample

   

62.0

62.0

Artificial heavy mineral sample

sample

   

1.0

1.0


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Silvercorp Metals Inc
NI 43-101 Technical Report Update on the GC Ag-Zn-Pb Project in
Guangdong Province, People’s Republic of China

(Table 6.1 cont’d)          
Program Unit Work completed
2001 - 2002 2004 - 2005 2006 - 2007  Total

Multiple element samples

sample

   

3.0

3.0

Water quality samples

sample

   

11.0

11.0

Rock and ore samples

sample

   

38.0

38.0

Sample for metallurgical test

sample

   

1.0

1.0

Metallurgical testing

test

   

1.0

1.0


Table 6.2 Record of Drilling 2001-2007

Year Drilled PQ (m)
85mm
HQ (m)
63.5mm
NQ (m)
47.6mm
Total (m)

2001-2005

 

1,993.9

 

1,993.9

2006-2007

420.3

5,179.7

5,869.9

11,469.8

Total (m)

420.3

7,173.6

5,869.9

13,463.7


6.1 History of Mining

Silvercorp informed AMC that prior to Yangtze Mining acquiring the GC Property, illegal mining activity resulted in the excavation of several tunnels and small scale mining of veins V2, V2-2, V3, V4, V5, V6 and V10.

The Guangdong Provincial Institute of Geological Survey (GIGS) reported a total of 1,398m of excavation comprised of 10 adits and tunnels had been completed on the property through the illegal activity. In 2002, GIGS developed 66m of tunnel to crosscut veins V5 and V5-1. GIGS sampled and mapped adits ML1 to ML5, ML6, ML7, ML9, and PD12.

Yangtze Mining, after their purchase of the property in 2005, mapped and sampled the accessible tunnels ML5 and ML8. Tunnel ML5 has exposure to vein V10 and tunnel ML8 has exposure to vein V2-2. Assay results of tunnel samples were used in resource estimation. Table 6.3 details the underground workings and work completed.

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Silvercorp Metals Inc
NI 43-101 Technical Report Update on the GC Ag-Zn-Pb Project in
Guangdong Province, People’s Republic of China

Table 6.3 Details of Underground Workings

Tunnel/Adit Length of
Tunnel/Adit
(m)
Vein intersected Samples
No.
Collected
Mapped and
Sampled By
ML1 156 V4 12 GIGS
ML2 70 V3 1 GIGS
ML3 2 V4 6 GIGS
ML4 41 V4 3 GIGS
ML5 324 V10 13 Yangtze
ML6 438 V2 25 GIGS
ML7 45 not named, parallel to V4   GIGS
ML8 246 V2-2 19 Yangtze
ML9 46 V4   GIGS
PD12 28 V6 3 GIGS
PD4401 66 V5 5 GIGS

AMC visited the tunnel sites but was not able to access them as most entrances were blocked for safety reasons. There is no detailed reconciliation data available for any of the mineralization extracted.

6.2 History of Mineral Resources

The Guangdong Provincial Institute of Geological Survey (GPIGS) prepared a resource estimate for nine mineralized veins for the GC Project after the 2004-2005 exploration season. The GPIGS has its own classification system of mineral resources/reserves which is different from CIM codes. AMC does not believe those resources are material to this report as they are non CIM – NI43-101 resource estimates and have been superseded by estimates that are.

Prior to this report a resource estimate for the GC Project was reported in a Technical Report by SRK dated April, 2008 and posted on SEDAR July 4, 2008. The Technical Report was entitled “Technical Report on Gaocheng Ag-Zn-Pb Project, and Shimentou Au-Ag-Zn-Pb Project, Guangdong Province, People’s Republic of China”. The SRK summary of the resource estimate at the GC Project for thirteen better-explored veins is listed as reported in Table 6.4.

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NI 43-101 Technical Report Update on the GC Ag-Zn-Pb Project in
Guangdong Province, People’s Republic of China

Table 6.4 April 2008 Resources for the GC Project

 Category Tonnage Ag
(g/t)
Pb
(%)
Zn
(%)
Sn
(%)
Ag
(kg)
Pb
(t)
Zn
(t)
Sn
(t)

Measured

499,793

206.63

1.31

3.94

0.14

103,270

6,546

19,712

709

Indicated

1,329,903

100.45

1.51

2.36

0.13

133,590

20,040

31,362

1,772

Inferred (o)

707,237

238.50

1.01

0.10

0.08

168,682

7,121

673

561

Inferred (s)

6,574,146

112.92

1.42

3.32

0.13

742,361

93,669

218,002

8,619

Measured + Indicated

1,829,695

129.45

1.45

2.79

0.14

236,860

26,587

51,075

2,481

Inferred

7,281,383

125.12

1.38

3.00

0.13

911,043

100,790

218,675

9,179


     (o) – oxidized      (s) – sulphide

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Silvercorp Metals Inc
NI 43-101 Technical Report Update on the GC Ag-Zn-Pb Project in
Guangdong Province, People’s Republic of China

7 GEOLOGICAL SETTING

7.1 Regional Geology

The factual information in this section has been primarily derived from the previous Technical Report on the property titled “Technical Report on Gaocheng Ag-Zn-Pb Project, and Shimentou Au-Ag-Zn-Pb Project, Guangdong Province, People’s Republic of China”, dated April, 2008.

The property is located at the north portion of the Yunkai uplift of the Southern China folding system, the east margin of the Luoding basin and east of the Wuchuan – Sihui major fault. Structurally, the deposit occurs at the intersection of a northeasterly striking fault zone and a near east-westerly striking fault zone. Northeast striking structures and arc structures form the basic geological framework of the region.

Figure 7.1 Tectonic Geology Map of Southern China


Regional outcrop includes Later Proterozoic Sinian sedimentary clastics and carbonate rocks, which host Ag-Pb-Zn multi-metallic deposits in the region, and Paleozoic Ordovician, Silurian, Devonian, Carboniferous sedimentary clastics and carbonate rocks which host some Cu-Pb-Zn, Mn and Au-Ag deposits, and Mesozoic Triassic coal-bearing clastics rocks, and Cretaceous red clastics rocks.

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NI 43-101 Technical Report Update on the GC Ag-Zn-Pb Project in
Guangdong Province, People’s Republic of China

There are three sets of structures in the region. The north-easterly striking structure is comprised of a series of folds and faults that host some mineralized bodies. The near east-westerly striking structure dips steeply, and contains structural breccias within the faulting zones. Alteration zones are formed along both sides of the regional structures. Typically quartz is the filling in the faults. The third structure set is the arc or ring structures including folds and faults surrounding the Daganshan granite zone. The Pb-Zn-Ag-Sn deposits and mineralization showings, as well as geochemical anomalies of Au-Ag-Pb-Zn etc. occur in the arc or ring structural zone.

Magma intruded in the centre of the arc/ring structure. The intrusives include Paleozoic granite batholiths, and Mesozoic granite stocks and dykes. The Mesozoic stocks and dykes intruded in the inner zone of the arc/ring structure, and are associated with the Pb-Zn-Ag multi-metallic mineralization in the region.

The regional geochemical surveys defined multiple anomalies of Ag, Au, Pb, Zn etc. along the arc/ring structural zone. The GC deposit occurs in one of the anomalies.

Mineral deposits are abundant in the region. The Dajiangping Pyrite deposit, the Dajinshan W-Sn multimetallic deposit, the GC Pb-Zn-Ag deposit, the Jianshan-Shimentou Pb-Zn-Ag deposit, the Jiuquling Sn deposit, as well as many mineralization sites and showings, have been discovered in the region.

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Silvercorp Metals Inc
NI 43-101 Technical Report Update on the GC Ag-Zn-Pb Project in
Guangdong Province, People’s Republic of China

Figure 7.2 Regional Geological Map


7.2 Property Geology

The GC Project is located in the northeastern margin of the Luoding basin, which is at the middle portion of the Yunkai uplift in the Hua’nan (South China) Fold System. The deposit is located at the intersection between Wuchuan-Sihui Deep Fault zone and Daganshan Arc-ring structural zone.

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NI 43-101 Technical Report Update on the GC Ag-Zn-Pb Project in
Guangdong Province, People’s Republic of China

Figure 7.3 Property Geology Map


7.2.1 Stratigraphy

Outcrop in the project area includes the Sinian Daganshan Formation which is composed of quartz sandstone, meta-carbonaceous siltstone, carbonaceous phyllite, calcareous quartzite, argillaceous limestone; the Triassic Xiaoyunwushan Formation which is made up of quartz sandstone and shale; and the Cretaceous Luoding Formation of sandy conglomerate and conglomerate.

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NI 43-101 Technical Report Update on the GC Ag-Zn-Pb Project in
Guangdong Province, People’s Republic of China

7.2.2 Structures

The project area is situated in the southwest part of the Daganshan uplift. Structures developed in the area are mainly the NWW striking Gaocheng Fault zone, the NE striking Baimei Fault zone, and the Songgui Fault zone.

Figure 7.4 Two sets of joints (NE- and NWW-striking) were exposed in trench TC059

The NWW-striking fault zone is the main mineralization bearing structure in the deposit, and is also the most developed and the largest fault zone of the three. The Gaocheng Fault zone is part of the NWW structure. Most of the defined veins (V2-2, V2, V2-0, V2-1, V3, V4, V5, V5-1, V6, V6-0, V7, V7-0, V7-1, V8, V8-0, V8-1, V9, V9-0, V9-1, V13, V14, V15, and V15-1) are found in this fault zone. The fault zone is about 4.8km long and about 2000m wide with more than ten nearly parallel faults within a granite zone and the Cretaceous Luoding Formation. It strikes at 290°, dips SSW at angles of 60-80°, and is the main mineralization hosting structure in the area.

It is has been observed that the NE-striking faults cut through the NWW-striking structures with no or minor displacement. Mineralization veins such as V10, V10-1, V11 and V12 are controlled by the NE-extending fault zones.

The following two photos are of the NWW and NE striking faults. The faults demonstrate a sharp contact between the veins and the host rock.

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NI 43-101 Technical Report Update on the GC Ag-Zn-Pb Project in
Guangdong Province, People’s Republic of China

Figure 7.5 Fault Planes

  a) Vertical and smooth fault plane of V10 Vein in an open stope of Tunnel ML5.   b) Vertical and smooth fault plane of V2-2 Vein in an open stope of Tunnel ML5

As shown in Figure 7.6, the faults were formed by multiple ductile and tension movements.

Figure 7.6 Multiple Ductile and Tension Movements

  a) Rounded breccias seen in drill core of ZK3204   b) Angular breccias seen in drill core of ZK ZK3605

7.3 Magmatic Activities

A series of magmatic events occurred on the GC property. Intrusives include Paleozoic gneissic, medium-grained biotite granite, and Mesozoic fine- to medium-grained adamellite, brownish, fine-grained, biotite mylonite, granite porphyry, quartz porphyry, diabase, aplite. The Mesozoic intrusives intruded along the south and southwest contacts of the Paleozoic granites. The majority of Ag-Zn-Pb mineralization is hosted by the Mesozoic granite.

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Silvercorp Metals Inc
NI 43-101 Technical Report Update on the GC Ag-Zn-Pb Project in
Guangdong Province, People’s Republic of China

A number of drill holes have pierced the footwall of the granite. The footwall elevation contour indicates that the granite dips to south and strikes to west northwest, which is parallel to the majority of mineralized veins on the GC property. The main mineralized veins V2 and V6 occur in the fault zones that are nearer to the footwall of the intrusives.

Figure 7.7 Granite Footwall Elevation Contour Map


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NI 43-101 Technical Report Update on the GC Ag-Zn-Pb Project in
Guangdong Province, People’s Republic of China

8 DEPOSIT TYPES

The factual information in this section has been primarily derived from the previous Technical Report on the property titled “Technical Report on Gaocheng Ag-Zn-Pb Project, and Shimentou Au-Ag-Zn-Pb Project, Guangdong Province, People’s Republic of China”, dated April, 2008.

The poly-metallic mineralization of the GC deposit belongs to the mesothermal vein infill style of deposit and exhibits the following characteristics:

  • The mineralization occurs as veins which are structurally controlled within broader alteration zones. The alteration can reach more than a few meters along the faults distributing in both hanging wall and footwall.

  • The veins have a sharp contact to the host rocks and steeply dip at angles between 60-85°.

  • In general, the Ag-Zn-Pb mineralization occurs along the strike of the faults. The veins have true widths varying from just over 0.1m to over 10m.They have been traced for over about 1250m along the strike, and approximately 550m down dip.

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Silvercorp Metals Inc
NI 43-101 Technical Report Update on the GC Ag-Zn-Pb Project in
Guangdong Province, People’s Republic of China

9 MINERALIZATION

The factual information in this section has been primarily derived from the previous Technical Report on the property titled, “Technical Report on Gaocheng Ag-Zn-Pb Project, and Shimentou Au-Ag-Zn-Pb Project, Guangdong Province, People’s Republic of China”, dated April, 2008. The tables and comments have been revised where warranted.

The 5.54 km2 GC Project area is crossed by mesothermal silver-lead-zinc quartz-pyrite veins in steeply-dipping fault-fissure zones which cut Mesozoic granite.

9.1 Vein Structure

Structurally, the GC vein systems all appear to be generally similar, occupying steeply-dipping fault-breccia zones which trend most commonly northwest-southeast and less commonly northeast-southwest. The structures extend for hundreds to a few thousand meters along strike and are often filled by silicified structural breccias and cataclastic rocks of residual blasto-cataclastic texture and blastogranite texture, or are mapped as discrete zones of altered bedrock (mainly granite) with local selvages of quartz-pyrite veinlets.

The veins occur as steeply-dipping, tabular or splayed veins, commonly as sets of parallel and offset veins. Individual veins along the structures thin and thicken, from less than one meter up to tens of meters in width, in classic “pinch-and-swell” fashion. The pinching and swelling are the result of flexural irregularities from movement along the structure, with “swells” representing zones of dilation. The dilation zones (swells) are often sites of high-grade pockets or “ore shoots.”

9.2 Mineralogy

The mineralized veins in the GC area occur in relatively permeable fault-breccia zones and are extensively oxidized from the surface to depths of about 40m. Within this zone, the veins show many open spaces with conspicuous boxwork lattice textures resulting from the leaching and oxidation of sulphide minerals. Secondary minerals present in varying amounts in this zone include kaolinite, hematite, and limonite.

The dominant sulphide is pyrite, typically comprising a few percent to 13% of the vein. Other constituents are a few percent of sphalerite, galena, pyrrhotite, arsenopyrite, magnetite and less than a percentage of chalcopyrite and cassiterite. Metallic minerals in much smaller amounts include argentite, native silver, bornite, wolframite, scheelite, and antimonite. The minerals occur in narrow massive bands, veinlets or as disseminations in the gangue. Gangue minerals include chlorite, quartz, fluorite, feldspar, mica, hornblende, etc., with a small amount or trace amount of kaolinite, tremolite, actinolite, chalcedony, garnet, zoisite, apatite and tourmaline, etc.

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NI 43-101 Technical Report Update on the GC Ag-Zn-Pb Project in
Guangdong Province, People’s Republic of China

Pyrite, Pyrrhotite, Arsenopyrite. These are the main iron sulphide minerals and occur in both disseminated and veinlets forms.

Galena. Coarse grains of galena appear in subhedral-anhedral crystals. Galena occurs primarily embedded in, and in contact with, sphalerite and pyrite. It fills between grains of pyrite along with sphalerite and chalcopyrite. It may replace pyrite.

Figure 9.1 Polished Core Shows Different Minerals and Alterations in Vein V2

sp- sphalerite; gl – glena; py – pyrite; qz – quartz

Sphalerite. Sphalerite mostly appears as xenomorphic granular shape, partially in subhedral granular shape. It commonly embeds into galena and pyrite, and fills between the grains of pyrite associated with galena and chalcopyrite, replacing slightly over pyrite.

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Copper minerals. Copper-bearing minerals are mainly chalcopyrite, and a trace amount of bornite and tetrahedrite. Usually chalcopyrite appears in anhedral crystals, embedding and edging along sphalerite, galena, pyrite and arsenopyrite.

Silver minerals. Silver minerals are visible native silver and argentite, which mainly occur as embedded form in galena and anhedral pyrite, partially between the grains of pyrite, galena and sphalerite.

Cassiterite. Cassiterite mainly appears as disseminate anhedral grains, mostly between the grains of quartz, chlorite and hornblende, partially between the grains of galena and pyrite.

Mineralization Types. The Ag-Zn-Pb mineralization in the deposit can be divided into two types: primary and oxidized.

Primary mineralization. Is mainly composed of galena-sphalerite-silver ore minerals which occur sparsely, disseminate, and as veinlets and lumps. The type accounts for 95% of the entire mineral resource.

Oxidized mineralization. This occurs on and near the surface as a result of oxidization of the primary mineralization.

Alteration. Alteration minerals associated the GC vein systems include silica, sericite, pyrite and chlorite, together with clay minerals and limonite. Silicification is common near the center of the veins, chlorite and sericite occur near and slightly beyond the vein margins.

The mineralization is commonly associated with alteration distributed along the fault-breccia zone. A zonation of alterations is visible. From the centre out, the alterations change from pyritization, + fluoridization, to silicification + potassium felsparization + sericitization, to silicification + chloritization + kaolinization.

Silica, pyrite, fluorite, and chlorite are closely related to the mineralization.

9.3 Characteristics of the Mineralized Veins

Based on surface mapping, trenching, tunnelling and drilling, the characteristics of 27 veins have been identified on the GC property are described as follows. V14, V15, and V15-1 were only encountered by single drill holes and veins V12 and V9-0 only contained very low-grade mineralization. As such they are not included in the descriptions below.

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NI 43-101 Technical Report Update on the GC Ag-Zn-Pb Project in
Guangdong Province, People’s Republic of China

All of the veins strike north-westerly and dip to the southwest with a dipping angle ranging from 55o to vertical, with the exception of veins V10 and V10-1 which extends to the northeast and dips steeply to the southeast.

Table 9.1 Dimensions and Occurrences of Mineralized Veins

Vein # Length
(m)
Defined
Inclined
Depth
(m)
Elevation of
defined
Depth
(m)
Strike/Dip Average Dip
Angle
Average True
Thickness (m)

V2

948

516

-364

175-215° <60-84°

72

3.35

V2-0

596

458

-326

200° <60-84°

69

0.55

V2-1

890

446

-312

130-200° <41-84°

70

1.28

V2-2

932

569

-420

180-200° <42-84°

70

1.14

V3

158

238

-96

200° <80-85°

81

0.53

V4

291

318

-142

200° <70-88°

80

0.93

V5

706

430

-172

180-200° <70-88°

74

0.46

V5-1

464

380

-96

200° <60-88°

73

1.18

V6

1106

659

-485

165-265° <60-84°

70

2.24

V6-0

800

445

-329

200° <65-70°

67

1.45

V7

800

383

-180

128-200° <39-81°

70

0.76

V7-0

720

350

-165

200° <63-81°

72

1.31

V7-1

796

342

-172

200°<61-83°

73

0.77

V8

208

272

-28

200°<56-88°

75

1.07

V8-0

100

211

19

200°<78-88°

84

0.29

V8-1

203

87

135

200°<78-88°

85

0.56

V9

300

442

-245

200° <70-85°

76

1.36

V9-0

198

441

-239

200° <83°

83

1.99

V9-1

300

402

-232

200°<66-82°

76

0.58

V10

298

281

-94

55-200° <65-75°

70

2.58

V10-1

493

230

-56

123° <62-70°

68

0.77

V11

185

201

-229

123° <66-70°

69

1.08

V13

200

391

-179

200°<77-81°

79

1.15

V14

200

255

-80

200°<77-78°

78

0.83

V15

100

253

-68

200°<77-78°

77

3.9

V15-1

100

135

84

200° <78°

78

0.57


Resources by vein are listed in Tables 17.7 and 17.8.

V2. The vein has the highest contained metal in the resource. The vein occurs in a granite body within the NWW-striking fault, F7. The vein occurs with a defined length of 1255m and defined depth of 466m. The vein remains open at depth.

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Silvercorp Metals Inc
NI 43-101 Technical Report Update on the GC Ag-Zn-Pb Project in
Guangdong Province, People’s Republic of China

V2-0. Located 4 to 36m southwest of the V2 vein and intersected by 25 drill holes, the V2-0 vein has been exposed over 700m along strike and 495m along dip.

V2-1. Located about 30m east of and in the hanging wall of the V2 vein. It has a defined length of 815m, an inclined depth of 448m. The mineralization remains open at depth.

V2-2. The vein occurs in granite, about 30m west of and in the footwall of the V2 vein. It has a defined length of 918m, a defined depth of 548m.

V3. Located in the north part of the property. It is hosted in the mineralization-bearing fault, F3, within a granite.

V4. Located in the central part of the property. The vein outcrops on the surface with length of approximately 2000m. Currently the mineralization is defined in two sections. The northwest section occurs in the strata with a defined length of 265m which has only been explored on the surface and in shallow depth. The southeast section occurs in the granite with a defined length of 750m, a depth of 251m, downward the elevation of -92.1m ASL. It is open at depth.

V5-1. It is about 240m from the V2 vein. The vein occurs in the granite. The vein has a defined length of 608m, a defined depth of 162m,

V6. Is another of the major mineralized veins in the deposit. The vein is about 80-150m from the V2 vein and hosted in granite. The vein occurs in fault F8. The vein extends over of 1140m of strike length and a depth of 618m.

V6-0. The vein is parallel to and 25 to 30m southwest of the V6 vein and defined over 100m along strike and 450m along dip. The vein was encountered by four drill holes.

V7. A major vein in the property in resource tonnes. Average silver grades are generally lower than the other veins in the resource. The vein is about 100m from the V2 vein. This vein is hosted by the fault F8 in granite. It has a defined length of 891m, a defined depth of 315m.

V7-0. Located 15 to 50m southwest of the V7 vein. Vein V7-0 is observed to extend 933m along strike and 627m along dip. It has been intersected by 31 drill holes.

V8, V8-0 and V8-1. The V8 series of veins are parallel to each other and are over tens of meters apart. Veins V8-0 and V8-1 have higher than average silver grades. V8-0 is exposed over 300m along strike and 220m along dip while V8-1 is observed to be 206m in length and 97m in height.

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Silvercorp Metals Inc
NI 43-101 Technical Report Update on the GC Ag-Zn-Pb Project in
Guangdong Province, People’s Republic of China

V9. This vein was intersected by 12 drill holes. The vein is located between the V5-1 and V8 veins and is exposed over 915m along strike and 439m along dip.

V9-1. This vein is located between the V8 and V9 veins and is observed to extend over 550m along strike and 440m along dip. Eight drill holes encountered the vein.

V10. One of the major veins on the property. The vein occurs along the fault F19 within granite. The vein occurs as a narrow vein with local swells. The V10 vein is nearly perpendicular to the veins V6, V2-2, V2, V2-1, V7, V7-1 and V5. It has a defined length of 553m, a defined depth of 174m.

V10-1. The vein is located 50 to 90m southeast of the V10 vein and is defined by 14 drill holes. It extends approximately 490m along strike and 277m down dip.

V13. This vein is located between the V9-1 and V8 veins. The vein is exposed over 500m and 300m along strike and dip, respectively.

9.4 Other Mineralization Features

The following are additional mineralization features of the GC deposit.

  1.

The high grade Ag-Zn-Pb mineralized shoots usually occur at the intersections of the NWW and east-west striking faults, in which the shoots plunge to east.

2.

Within breccia zones of a fault, Ag-Zn-Pb mineralization is intensive, continuous, and wide.

3.

Individual metal grade contours of the mineralized veins indicates that the Zn mineralization is more common than Ag and Pb. Usually Ag and Pb are locally concentrated. Ag mineralization plunges to east southeast as seen in V2 and V6 veins.


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Silvercorp Metals Inc
NI 43-101 Technical Report Update on the GC Ag-Zn-Pb Project in
Guangdong Province, People’s Republic of China

Figure 9.2 Pb, Zn, and Ag grade contour of Vein V2


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Silvercorp Metals Inc
NI 43-101 Technical Report Update on the GC Ag-Zn-Pb Project in
Guangdong Province, People’s Republic of China

Figure 9.3 Pb, Zn, and Ag grade contour of Vein V6

 


   
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Silvercorp Metals Inc
NI 43-101 Technical Report Update on the GC Ag-Zn-Pb Project in
Guangdong Province, People’s Republic of China

10 EXPLORATION

Exploration work by Silvercorp on the GC property was carried out in 2008. The program is summarized in Table 10.1.

Table 10.1 Main Programs Conducted on the GC Property by Silvercorp

Program Unit Work Completed
 2008
     1:10,000 soil profiling km   10
     Diamond drilling m   10,083
     Trenching (pitting) m3   740
     Soil samples sample   535
     Chemical analysis samples sample   2,139
     Metallurgical testing test   1

The diamond drilling undertaken in 2008 represented 43% of all the diamond drilling on the property.

10.1 Soil Geochemical Program

A 1:10,000 scale geochemical survey was done by taking samples from C-layer of top soils and the samples were assayed for Au, Ag, Cu, Pb, Zn, Mo, Sb, and As, etc. The program resulted in outlining significant Ag, Pb, and Zn anomalies, providing targets for surface trenching and pitting. Most of the veins on the property were discovered using the soil geochemical results.

In 2008, soil geochemical survey (1:10,000 scale) was carried out by Silvercorp through the collection of 535 samples within a 2.22 km2 area in the southern part of the property where no drilling had been previously performed. Three new Ag-Zn-Pb geochemical anomalies observed to be over 500m long and up to 250m wide were identified, providing priority drill targets with the potential to host additional veins.

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Silvercorp Metals Inc
NI 43-101 Technical Report Update on the GC Ag-Zn-Pb Project in
Guangdong Province, People’s Republic of China

Figure 10.1 Soil Geochemical Anomalies of Ag, Pb, And Zn on the GC Property


Anomaly AS1 is located at the east of V4 vein along F4 fault. The anomaly is about 500m in length and 50 to 100m in width. The peak values of Ag, Pb and Zn are 2.1 ppm, 0.19% and 0.03% respectively. Trenching was carried out over the anomaly and mineralization was confirmed by the sample assay result.

AS2 anomaly is located between exploration line 1 and 12. It measures about 500m in length and 20 to 200m in width. The maximum values of Ag, Pb and Zn are 14.5ppm, 0.11% and 0.02%, respectively.

 
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Silvercorp Metals Inc
NI 43-101 Technical Report Update on the GC Ag-Zn-Pb Project in
Guangdong Province, People’s Republic of China

AS3 anomaly is between exploration lines 28 to 44. Its length is about 500m. The anomaly ranges 20 to 50m in width from exploration lines 36 to 44 and expands to 250 wide at exploration 44.

10.2 Topographic and Geological Mapping

GIGS conducted a 1:10,000, 1:5,000 and 1:2,000 geological mapping programs, and a 1: 2,000 topographic survey covering the GC Project area. The geological mapping programs established stratigraphic sequences, size, and distributions of intrusive rocks and faults.

The grid system used for the GC Project is Beijing Geodetic Coordinate System l954. Altitude is referred to Yellow Sea 1956 Elevation System. The project survey control points were generated from three nearby national survey control points. The control points were surveyed using four NGS-9600 GPS receivers. Survey machines used for topographical survey and geological points, trenches, adits, and drill hole collars were Topcon GTS-Serial Total Station Instrument – XJ0747 and one NX2350 and Sokkia SET-230PK Total Station Instrument.

10.3 Trenching and Pitting

Based on the soil geochemical and surface mapping, Silvercorp conducted trenching and pitting programs on the GC property. The program exposed the mineralized veins on the surface and at shallow depth. A total of seven pits and one trench were dug by Silvercorp and exposed three veins. Table 10.2 contains the findings in detail.

Table 10.2 Trenches and Pits Completed by Silvercorp in 2008

Trench/pit Section# Azimuth Volume Vein exposed
 (m3)
BT08-1 40 240° 224      0.80 m wide V5-1, containing 25 g/t Ag
BT08-2 44 235° 24      0.95 m wide V7-0, containing 21 g/t Ag
BT08-3 52 210° 32.4      No vein intersected
BT08-4 52 310° 24      No vein intersected
BT08-5 52 340° 52.8      0.80 m wide V7-0, containing 61 g/t Ag
BT08-6 44 230° 33.6      0.65 m wide V5-1, containing 98 g/t Ag
BT08-7 30 340° 118.8      0.75 m wide V5-1, containing 18 g/t Ag
TC5201 52 185° 230.4      1.00 m wide V4, containing 0.31% Pb and 0.13% Zn

The trenches or pits were dug perpendicular to striking direction of a soil geochemical anomaly or alteration zone. The trenching or pitting is completed by digging into bedrock approximately 0.3 to 0.5m.

 
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Silvercorp Metals Inc
NI 43-101 Technical Report Update on the GC Ag-Zn-Pb Project in
Guangdong Province, People’s Republic of China

Figure 10.2 Locations of Trenches and Pits on the GC property


10.4 Drilling

Table 10.3 2008 Drilling in Metres by Core Diameter

Year Drilled PQ (m) - 85mm HQ (m) - 63.5mm NQ (m) - 47.6mm Total(m)
2008 286.1 1,841.8 7,955.2 10,082

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Silvercorp Metals Inc
NI 43-101 Technical Report Update on the GC Ag-Zn-Pb Project in
Guangdong Province, People’s Republic of China

11 DRILLING

A total of 65 diamond drill holes have been completed on the GC property since 2001 totalling 23,546.34m. During 2008, Silvercorp completed 22 hole, 10,082.6m drilling program, which resulted in the discovery of an additional 15 mineralized veins. Drill hole locations are shown in Figure 11.1. The drill hole collar, downhole survey and core recoveries are listed in Appendix VI and VII.

Figure 11.1 Drill-hole locations in the GC property


Diamond drill holes were drilled using PQ size in overburden, then reduced to HQ size for up to 100m depth. The remainder of a hole was drilled using NQ size unless the hole was required to drill over 600m in length. Drill core recoveries vary from 85 to 100% and average 99%.

 
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Silvercorp Metals Inc
NI 43-101 Technical Report Update on the GC Ag-Zn-Pb Project in
Guangdong Province, People’s Republic of China

Down hole surveys for a drill hole were done at every 50m using a Chinese made equivalent of a Sperry-Sun downhole survey tool. Drill hole collars were cemented after completion and locations of drill holes were marked using 50x30x20cm concrete blocks.

The drill cores were stored in a clean and well-maintained core shack in the town of Gaocun (Figure 11.2). Core shack are locked when nobody works inside and two attendants are on duty around the clock to maintain good security.

Figure 11.2 Drill Core Storage Facility

  

  a) Drill core racks in core shack   b) Drill core racks in core shack

Meters of various drill core sizes are shown in Table 11.1.

Table 11.1 Meters of various drill core sizes drilled in different years

Year Drilled PQ -85mm (m) HQ-63.5mm (m) NQ-47.6mm (m) Total (m)
2001-2005

1993.91

1993.91

2006-2007

420.27

5179.68

5869.88

11469.83

2008

286.1

1841.76

7955.2

10082.6

Total (m)

706.37

7021.44

13825.08

23546.34


Figures 11.3 to 11.6 show drill-holes on various cross sections at the GC property. The widths in the figures are horizontal widths.

 
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Silvercorp Metals Inc
NI 43-101 Technical Report Update on the GC Ag-Zn-Pb Project in
Guangdong Province, People’s Republic of China

Figure 11.3 Cross Section on Exploration Line 24


 
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Silvercorp Metals Inc
NI 43-101 Technical Report Update on the GC Ag-Zn-Pb Project in
Guangdong Province, People’s Republic of China

Figure 11.4 Cross Section on Exploration Line 28


 
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Silvercorp Metals Inc
NI 43-101 Technical Report Update on the GC Ag-Zn-Pb Project in
Guangdong Province, People’s Republic of China

Figure 11.5 Cross Section on Exploration Line 32


 
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Silvercorp Metals Inc
NI 43-101 Technical Report Update on the GC Ag-Zn-Pb Project in
Guangdong Province, People’s Republic of China

Figure 11.6 Cross Section on Exploration Line 406


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Silvercorp Metals Inc
NI 43-101 Technical Report Update on the GC Ag-Zn-Pb Project in
Guangdong Province, People’s Republic of China

12 SAMPLING METHOD AND APPROACH

The drill core is logged initially at the drill site and the mineralized or favourably altered intervals are moved to the surface core shack where they are logged, photographed and sampled in detail. Samples are taken prepared by cutting the core in half with a diamond saw. One half of the core is returned to the core box for archival storage, the other half is placed in a labelled cotton bag with the sample number written on the bag. The bagged core sample is then shipped to the laboratory for assaying.

Individual samples from the drill core are from veins that range in width from 0.05m to 12.03m. The veins consist of either massive sulphides or sulphide-bearing materials and can be easily identified and separately sampled from non-mineralized wall rock. Mineralized veins intercepted by drill cores were sampled in 1.5m maximum intervals and the distances cut where warranted by apparent wallrock.

Core recoveries are determined by measuring the actual amount of core recovered versus the length of the drilled interval from which the core was obtained. Core recoveries (calculated as percentage) are documented in the log. In general, the recoveries range from acceptable to excellent; although the recoveries vary somewhat from vein to vein.

Samples appear to have no apparent sampling or recovery difficulties that would affect the reliability of results. The samples appear to be representative and results of check samples show no apparent evidence of sample bias. Rocks sampled trenches, tunnels or in drill core are sulphide-rich veins that follow structures (faults). These veins are easily identified because of their bright metallic sulphides and they can be sampled with little difficulty.

The angle of the vein to core is determined by using the vein to core angles and cross-sectional correlations to determine the dip of the veins. The apparent thickness is then corrected to true thickness using simple trigonometry.

In AMC’s opinion, the sampling procedures and controls meet accepted industry standards. In general, the trench, chip and core samples appear to be representative of the areas examined and suitable for use in resource estimation.

 
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Silvercorp Metals Inc
NI 43-101 Technical Report Update on the GC Ag-Zn-Pb Project in
Guangdong Province, People’s Republic of China

Table 12.1 Individual Vein Characteristics

Vein #          Thickness Ag Pb Zn
Min (m) Max (m) Min (g/t) Max (g/t) Min (%) Max (%) Min (%) Max (%)

V2

0.24

12.03

3

1110

0.01

13.2

0.01

17.4

V2-0

0.20

2.18

5

550

0.01

11.4

0.05

9.85

V2-1

0.17

4.28

6

780

0.04

2.24

0.2

8.73

V2-2

0.13

6.74

4

968

0.03

3.83

0.01

10.75

V3

0.29

2.55

34

1626

0.04

13.74

0.01

10.74

V4

0.47

3.46

41

584

0.06

1.62

0.04

6.01

V5

0.16

3.38

17

836

0.03

7.15

0.11

12.05

V5-1

0.12

2.58

5

409

0.01

2.62

0.03

21.96

V6

0.16

11.22

11

863

0.03

3.73

0.05

24.31

V6-0

0.16

4.84

6

461

0.02

8.25

0.58

9.14

V7

0.18

5.6

5

261

0.02

6.94

0.18

15.3

V7-0

0.21

2.12

13

670

0.02

8.37

0.02

13.84

V7-1

0.07

5.84

17

1200

0.02

4.62

0.41

10.65

V8

0.55

2.34

35

293

0.02

4.48

0.02

2.63

V8-0

0.20

0.69

265

742

0.09

0.14

0.22

0.3

V8-1

0.46

0.64

95

396

0.07

2.22

0.18

1.14

V9

0.29

3.66

17

285

0.03

4.88

0.23

15.35

V9-0

0.25

3.47

24

207

0.05

5.55

0.88

6.58

V9-1

0.28

0.75

71

273

0.07

3.24

0.84

7.92

V10

1.12

9.86

4

690

0.03

9.23

0.01

11.47

V10-1

0.16

1.53

11

505

0.01

17.51

0.4

23.3

V11

0.80

3.06

21

300

0.48

1.4

0.05

4.96

V13

0.05

1.02

3

489

0.04

1.6

0.05

5.2

V14

0.42

1.08

31

149

0.37

10.45

0.7

2.79

V15

3.81

4.34

29

194

0.16

1.64

0.18

4.42

V15-1

0.59

0.59

301

301

1.76

1.76

1.84

1.84


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Silvercorp Metals Inc
NI 43-101 Technical Report Update on the GC Ag-Zn-Pb Project in
Guangdong Province, People’s Republic of China

13 SAMPLE PREPARATION, ANALYSES, AND SECURITY

Drill core samples were taken from sawn half core for every 1.5m or limited by apparent wall rock and mineralization contact. Half of the core was sent to the laboratory for analysis and the other half retained for archive. The samples are individually secured in sample bags and then collectively secured in rice bags for shipment to the laboratory. Employees of Yangtze Mining, the subsidiary of Silvercorp, collect and split the core for sampling. No officer or director of either Silvercorp or Yangtze Mining has contact with any of these samples prior to shipment to the laboratory.

The samples are shipped directly in security sealed bags to ALS Chemex in Guangzhou, China (Certification ISO 9001:2000), located approximately 180 km southeast of the GC property site.

The sample preparation consists of drying, crushing and splitting of the sample with a riffle splitter to 150g then pulverizing the sample to 200 mesh. Ag, Pb and Zn in drill core samples were analyzed by aqua regia digestion and AAS. The prepared sample is digested in aqua regia (HNO3-HCl). After cooling, the resulting solution is diluted with de-ionized water, mixed and then analysed by inductively coupled plasma-atomic emission spectrometry (ICP-AES).

Detection ranges for this method are:

Element Symbol Units Lower Limit Upper Limit
Silver Ag g/t 1 1500
Lead Pb % 0.01 20
Zinc Zn % 0.01 60

Soil samples were analysed by aqua regia digestion and ME-ICP.

Tin was analysed by fusing with peroxide, then leaching the melt and acidifying to precipitate out the tin for AAS finish.

Check samples including field duplicates and samples rejects are routinely sent to Laboratory of the Henan Institute of Geological Survey, located in Zhengzhou, Henan Province, Central China. In Henan Lab, lead, zinc, tin, and silver are all analysed with an Atomic Absorption Spectrometer after a three-hour hot aqua regia digestion on a 30 g split of the pulverized portion. A gravimetric finish is done on samples with silver values in excess of 1,500g/t. On samples containing more than 30% lead, an acid dissolution and titration is used to complete the analysis. Henan’s lower detection limits are 3 g/t for silver, 0.03% for lead and zinc.

 
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Silvercorp Metals Inc
NI 43-101 Technical Report Update on the GC Ag-Zn-Pb Project in
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Silvercorp’s check procedures include (a) inserting standards that were purchased by Langfang Lab and blanks that were prepared by Yangtze Mining in the every 40-sample batches submitted to the ALS Chemex lab on a regular basis, (b) submitting duplicate pulps to the ALS Chemex lab on a regular basis, (c) submitting 1/4 core samples as sample duplicates to the ALS Chemex for every 40-sample batches, and (d) submitting duplicate pulps to an independent external lab on an intermittent basis.

Details of these check procedures are offered in the previous Technical Report on the Ying Project (Broili, et.al., 2006). In general:

  • Standards included in samples sent to Langfang have been within 3% for the lead, zinc and silver values.

  • Duplicate pulps sent to the Langfang lab (restricted to samples containing more than 50 g/t Ag, 0.5% Pb and 0.5% Zn) show average differences of less than 1% for the silver and zinc values and 1.2% for the lead values.

  • Duplicate pulps selected at random, rather than from regular intervals, and sent for check analyzes to ALS Chemex in Guangzhou, China, an ISO 9001:2000 accredited lab. The average differences between the Lanfang analyzes and the check analyzes are near or below 5% for silver, lead and zinc.

In AMC’s opinion, the procedures used by Silvercorp for the preparation, security, and analytical procedures appear to be adequate and conform to standard industry practices.

 
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Silvercorp Metals Inc
NI 43-101 Technical Report Update on the GC Ag-Zn-Pb Project in
Guangdong Province, People’s Republic of China

14 DATA VERIFICATION

AMC Canada’s site visit was conducted by Brian O’Connor, P.Geo. from March 27 to March 30, 2009. During the site visit the following validation tasks were completed.

  • Review of the state of geological and mineralization knowledge.

  • Tour ALS Chemex facility in Guangzhou. Review of methodology and process flow.

  • Visit surface expressions of mineralized veins V4 (ML3), V2 (BT-3), adit to V10 and site ML8 (V2-2).

  • Review core logging and processing procedures, chain of custody for samples.

  • Data set and compilation review.

  • Review of the resource model block estimations.

  • AMC could not verify the underground workings and sample data at the time of the site visit as the access to the underground workings was barricaded for safety reasons.

AMC requested 34 diamond drill samples from the 2008 drill campaign be quarter split. The quarter split samples were delivered to Eco Tech Laboratory in Kamloops, British Columbia, Canada for analysis. Eco Tech is a fully accredited to ISO 9001:2000 and is currently working toward 17025 accreditation. The results are listed in Table 14.1.

Table 14.1 Independent Core Sample Verification

      Eco Tech (1/4 Core) Original (1/2 Core)
Vein Hole ID Sample # Ag (g/t) Pb % Zn % Ag (g/t) Pb % Zn %

V7-1

ZK2804 71730

160

0.13

2.03

222

0.17

2.61

V2

ZK2804 71772

92.3

1.08

4.60

76.0

1.07

4.10

V15-1

ZK2805 71231

196

1.00

1.31

301

1.76

1.84

V15

ZK2805 71235

204

0.48

0.63

178

0.55

0.64

V14

ZK2805 71246

72.0

1.15

1.95

91.0

1.39

2.79

V13

ZK2805 71305

7.1

0.05

0.06

3.0

0.04

0.05

V9

ZK2805 71389

39.3

0.35

0.46

39.0

0.38

0.65

V8

ZK2806 71864

150

0.68

2.48

143

1.03

2.63

V8-1

ZK3206 71208

346

1.78

1.16

396

2.22

1.14

V8-0

ZK3206 71213

723

0.15

0.32

742

0.14

0.22

V2-2

ZK3206 71636

66.0

0.05

0.14

82.0

0.04

0.14

V6

ZK3206 71673

40.0

0.83

6.22

58.0

1.79

9.69


 
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Silvercorp Metals Inc
NI 43-101 Technical Report Update on the GC Ag-Zn-Pb Project in
Guangdong Province, People’s Republic of China

(Table 14.1 cont’d)
      Eco Tech (1/4 Core) Original (1/2 Core)
   Vein Hole ID Sample # Ag (g/t) Pb % Zn % Ag (g/t) Pb % Zn %

V8

ZK3207 71945

14.1

0.95

0.20

35.0

1.23

0.46

V9-1

ZK3207 72055

68.7

1.65

2.38

71.0

1.92

2.16

V9-0

ZK3207 72072

44.0

1.10

4.85

59.0

1.79

6.58

V9

ZK3207 72075

144

0.83

10.9

205

0.72

11.8

V2-1

ZK3606 70649

126

0.10

1.15

140

0.18

2.15

V2

ZK3606 70681

24.2

0.53

3.83

26.0

0.55

3.98

V2-2

ZK3606 70710

63.8

0.88

2.10

55.0

0.35

1.88

V5-1

ZK3607 70520

56.6

1.28

2.98

50.0

1.11

3.82

V7-1

ZK3607 70550

25.7

0.59

0.87

57.0

0.83

1.10

V2-1

ZK3607 70588

144

1.60

2.48

113

1.57

2.80

V2

ZK4001 70034

21.3

0.98

2.15

42.0

2.02

4.43

V5-1

ZK4003 70404

62.0

0.60

0.49

47.0

0.85

0.33

V5

ZK4003 70420

183

0.91

2.38

193

1.27

3.51

V10-1

ZK4004 71171

58.3

0.01

4.03

52.0

0.02

6.85

V10

ZK4004 71202

16.4

0.80

0.95

17.0

0.89

0.91

V7-0

ZK4004 71352

14.9

0.23

3.40

18.0

0.26

4.32

V2-0

ZK4004 71476

37.4

1.60

4.25

32.0

1.78

2.17

V5

ZK4402 70789

965

7.54

9.28

836

7.15

12.05

V7-0

ZK4402 71059

52.0

0.70

4.98

54.0

0.67

5.16

V6

ZK4403 70947

116

2.23

1.05

144

3.73

1.04

V7

ZK4805 71654

64.7

1.03

1.73

47.0

0.70

1.41

V2-0

ZK4805 71660

59.2

0.03

5.03

46.0

0.04

4.18

 
 

Minimum Value

7

0.01

0.06

3

0.02

0.05

 

Average Value

131

1.00

2.73

137

1.18

3.22

 

1st Quartile

39

0.38

0.98

46

0.36

1.06

 

Median Value

64

0.83

2.13

59

0.87

2.39

 

3rd Quartile

144

1.10

3.98

144

1.71

4.16

 

Maximum Value

965

7.54

10.90

836

7.15

12.05

 

Standard Deviation

197

1.28

2.50

187

1.33

3.09

 

Correlation Coefficient

0.98

0.95

0.95

     

In general, the silver values returned from the quartered core analysis are in agreement with the original half core assay results. The lead and zinc values returned from the quarter core analysis are on average elevated with respect to the original half core assays. It is AMC’s opinion that there is not a systemic bias in the data for lead and zinc assays, but that the variations seen are a reflection of the distribution of the lead and zinc mineralization within the vein. AMC notes that the quartile analysis for lead is anomalously elevated only in the third quartile and zinc is elevated anomalously in the median (2nd) quartile and the maximum (4th) quartile. The other quartile results are within a +/- 5 to 10% error range.

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Silvercorp Metals Inc
NI 43-101 Technical Report Update on the GC Ag-Zn-Pb Project in
Guangdong Province, People’s Republic of China

AMC’s review of the QA/QC data did not reveal any major deficiencies that are likely to have a material impact on the assay results used in the resource database.

Silvercorp’s data is stored in digital format, for both internal and external audit purposes, hardcopy output of the raw and interpreted data in the form of tables, plans and sections was readily available.

AMC compared 40% of the original assay certificates with the assays used in the block grade estimates and noted only minor discrepancies. AMC’s check of 15% of the grade, area, volume and tonnage calculations did not reveal any major deficiencies that are likely to have a material impact on the resource estimates. AMC would recommend that Silvercorp undertake variography studies to refine the understanding of the grade distribution and utilize a kriging or inverse distance weighting approach to grade interpolation prior to future resource and reserve estimations.

AMC did note some discrepancies in the tabled assays on some sections where the lead and zinc assays were inverted. AMC investigated this finding and found that these typographic errors were not incorporated into the resource calculation.

AMC did not take samples from the trenches during the site visit. In AMC’s opinion the trench data influence is less than 2% of the Measured and Indicated Resource, thus not material to the viability of the project.

 
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Silvercorp Metals Inc
NI 43-101 Technical Report Update on the GC Ag-Zn-Pb Project in
Guangdong Province, People’s Republic of China

15 ADJACENT PROPERTIES

The GC Project is located within the Daganshan mineralization field featuring tungsten (W), tin (Sn), gold (Au), silver (Ag), lead (Pb), zinc (Zn) mineralization, Figure 15.1. The field is characterized by five rounded zonations. From the centre outward, the mineralization zones are W, Sn, Sn-Pb-Zn, Ag-Pb-Zn, and Au. The following are a list of deposits that have been discovered and mined within the field.

Dajinshan Tungsten Deposit. The deposit is located in the centre of the Daganshan field. GIGS reported that the deposit contained 31,000t of WO3 and Sn and associated Ag, Cu, Mo and Bi.

Jiuquling Tin Deposit. The deposit is a quartz vein type and surrounds the tungsten mineralization zone. It is reported that the Jiuquling deposit has been developed and is production, however detailed information such as grade, deposit size, tonnage; metal recovery, etc. are not available at this time.

Jianshan Tin-Lead-Zinc-Silver Deposit. The deposit is located in the tin-lead-zinc mineralization zone. It is sedimentary type of deposit.

Yunfu Pyrite Deposit. The Yunfu pyrite mine is an open pit mine located 4.5km northwest of the city of Yunfu. Mine production began in 1988.

Figure 15.1 illustrates the general geological understanding of adjacent properties to the GC Project. AMC is not aware of any immediate adjacent properties which would directly affect the interpretation or evaluation of the mineralization and anomalies found on the GC Project property.

 
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Silvercorp Metals Inc
NI 43-101 Technical Report Update on the GC Ag-Zn-Pb Project in
Guangdong Province, People’s Republic of China

Figure 15.1 Zonation of Mineralization in the Daganshan Mineralization Field

 


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Silvercorp Metals Inc
NI 43-101 Technical Report Update on the GC Ag-Zn-Pb Project in
Guangdong Province, People’s Republic of China

16 MINERAL PROCESSING AND METALLURGICAL TESTING

Yangtze Mining retained Hunan Institute of Non-ferrous Metallurgical Studies (Hunan Institute) for a metallurgical test on the mineralization from the GC deposit. In March 2007, the Hunan Institute took three bulk samples from the stockpiles of mineralized material of local village miners, old tunnels and drilling cores. Table 16.1 summarizes the information about the samples. All of the samples were taken from mineralized vein V2.

Table 16.1 Summary of Gaocheng Samples Used for Metallurgical Testing

Sample No.  Weight (kg)  Ore Type  Pb (%) Zn (%) Ag (g/t) 
GC1  120.0  Massive  4.68 6.01 96.56 
GC2  147.5  Disseminated  1.86 4.28 61.20 
GC3  393.5  Mineralized rocks  0.52 0.92 19.72 

The samples were analysed for mineralogy and occurrences of the main beneficial elements, i.e., silver, lead, zinc, tin, and sulphur. The mixture of the samples at ratios of 1:1:2.9 for samples GC1:GC2:GC3 and grades of 40-60g/t Ag, 1.2-1.5% Pb and 2.3-2.5% Zn was used to conduct an ore processing experiment to produce a lead concentrate, a zinc concentrate, and a sulphur concentrate. Silver is mainly concentrated in the lead concentrate and the zinc concentrate. Below is a brief summary of the study.

16.1 Mineralogy and Occurrences of the Beneficial Elements

The mineralogy of the composite samples is summarized below and given in Table 16.3. The percentages where presented have been rounded.

Occurrence of Silver. Silver grades in the samples range from 20g/t to 100g/t, averaging 46g/t. It is distributed in several minerals. It mainly occurs in silver sulphides, such as argentite, accounting for 35% of all silver, in other sulphides, such as pyrite, galena, and sphalerite etc., accounting for 25%, and in native silver, accounting for 20%, as well as in gangue minerals. Silver sulphide minerals occur closely with galena as inclusions within galena, or distributed in between galena grains. In general, the distribution of silver is 43% in galena, 25% in sphalerite, 21% in pyrite and other sulphides, and 12% in gangue minerals.

Occurrence of Zinc. Zinc grade in the samples range from 0.9 to 6.0%, averaging 2.4%. Zinc mainly occurs in sphalerite, accounting for 94% of total zinc, and secondarily in zinc carbonate minerals, 2%, zinc silicate minerals, 2%, and other minerals. Sphalerite usually occurs intergrown with galena and pyrite. Sometimes, it, together with galena and chalcopyrite, may occur in between the grains of pyrite. 94% of sphalerite crystals are greater than 0.037mm (-320mesh), with 12% greater than 1mm.

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Silvercorp Metals Inc
NI 43-101 Technical Report Update on the GC Ag-Zn-Pb Project in
Guangdong Province, People’s Republic of China

Occurrence of Lead. Lead grade in the samples range from 0.5 to 4.7%, averaging 1.4%. Lead mainly occurs in galena, accounting for 93% of total lead, and secondarily in lead carbonate minerals, 4%, and other minerals. Galena usually inter-grows with sphalerite and pyrite. Sometimes, it, together with sphalerite and chalcopyrite, may occur in between the grains of pyrite. 97% of galena crystals are greater than 0.037 mm (-320 mesh), with 15% greater than 1 mm.

Occurrence of Tin. Tin mainly occurs in cassiterite, accounting for 95% of total, and secondarily as colloid tin, 3%, and in other minerals.

Occurrence of Sulphur. Sulphur grades in the samples average about 10%. Sulphur mainly occurs in pyrite and pyrrhotite, accounting for 83.5% of total, and secondarily in sphalerite and galena, 14%, and other sulphide minerals. There are two types of iron sulphide minerals, one type occurs as subhedral crystals with grain sizes of 0.4-5 mm, and the other type occurs as fine grained (0.03-0.5 mm) anhedral crystals. Pyrite is relatively coarse with 97% greater than 0.037 mm (-320mesh), and 30% greater than 1mm.

Table 16.2 Summary of Mineralogy of the Samples Taken From Gaocheng Deposit

Mineral  Content  Mineral  Content 
Sphalerite  3.5  Quartz  30 
Galena  1.5  Feldspar  8 
Pyrite  13  Chlorite  12 
Pyrrhotite  5  Kaolinite  6 
Arsenopyrite  1.1  Sericite and Mica  6 
Magnetite and hematite  2  Hornblende  2 
Chalcopyrite and bomite  .14  Other silicate minerals  1 
Cassiterite  .2  Calcite  2.2 
Fluorite  7.86  others  .5 

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Silvercorp Metals Inc
NI 43-101 Technical Report Update on the GC Ag-Zn-Pb Project in
Guangdong Province, People’s Republic of China

16.2 Mineral Processing and Metallurgical Testing

Test Sample

In order to optimize a processing flowsheet for recovering lead, zinc, silver, tin and sulphur of the GC mineralization, Hunan Non-ferrous Metals Research Institute (HNMRI) was contracted to perform mineral process and metallurgical tests between February and April, 2009. Test sample was a composite of 158 drill core sample rejects from the 2008 drill program, which were originally collected for assaying. Grain size of the rejects was less than 2mm. Head grades are listed in Table 16.3.

Table 16.3 Head Grade of the Blended Test Sample

Cu (%)  Pb (%)  Zn (%)  S (%)  Sn (%)  Au(g/t)  Ag(g/t) 
0.16  1.45  3.25  10.16  0.20  0.20  128.32 

Average grades of composite sample are very close to the deposit grades.

Metallurgical Test

First Stage. After performing a number of tests at different conditions based on 2007 test results, optimized test parameters and processing techniques were finalized. Locked cycle tests were conducted. Lead and zinc flotations include one rougher, three cleaners, and two scavengers while pyrite (sulphur) was tested using one stage rougher, cleaner, and scavenger flotation. General locked cycle flowsheet and test results are shown in Figure 16.1 and Table 16.4.

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Silvercorp Metals Inc
NI 43-101 Technical Report Update on the GC Ag-Zn-Pb Project in
Guangdong Province, People’s Republic of China

Figure 16.1 General Locked Cycle Flowsheet

Table 16.4 Results of Locked Cycle Test

Product
Name 
Weight
(%) 
Grades Recovery Rate (%)
Pb (%)  Zn (%)  S (%)  Ag (g/t)  Pb  Zn  S  Ag 
Lead Con.  2.35  51.12  8.13  -  2986.42  85.02  5.94  -  57.96 
Zinc Con.  5.89  0.89  49.24  -  300.26  3.71  90.37  -  14.60 
Sulphur Con.  14.32  0.75  0.36  43.59  207.7  7.60  1.61  61.44  24.56 
Tails  77.44  0.067  0.086  -  4.5  3.67  2.08  -  2.88 
Ore  100.00  1.41  3.21  10.16  121.09  100.00  100.00  -  100.00 

Second Stage. In order to increase silver grade in the lead concentrate, HNMRI had optimized reagent dosages based on the flowsheet of the Figure 16.1. Silver recovery in lead concentrate increased from 57.96% to 62.77%, however lead concentrate grade reduced from 51.12% to 46.35%. The test results are presented in Table 16.5.

Table 16.5 Results of the Locked Cycle Test (With Optimized Reagent Dosage)

Product
Name 
Weight
(%) 
Grades Recovery Rate (%)
Pb (%)  Zn (%)  S (%)  Ag (g/t)  Pb  Zn  S  Ag 
Lead Con.  2.63  46.35  9.53  -  3009.23  84.57  7.75  -  62.77 
Zinc Con.  5.84  0.92  48.95  -  268.4  3.73  88.42  -  12.43 
Sulphur Con.  14.65  0.81  0.41  42.52  189.74  8.23  1.86  61.31  22.05 
Tailing  76.88  0.065  0.083  -  4.5  3.47  1.97  -  2.74 
Ore  100.00  1.44  3.23  10.16  126.07  100.00  100.00  -  100.00 

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Silvercorp Metals Inc
NI 43-101 Technical Report Update on the GC Ag-Zn-Pb Project in
Guangdong Province, People’s Republic of China

To recover tin (Sn) from the flotation tails, HNMRI had sequentially examined the spiral chute – vibrating screen, the pure flotation and the centrifugal separator - vibrating screen, etc., and then selected the spiral chute – vibrating screen as a final gravity processing technique, which could clean tin using a vibrating screen after tailing was separated using the spiral chute. A complete locked cycle flowsheet for the test is exhibited in Figure 16.2. The test results are presented in Table 16.6.

Figure 16.2 Complete Locked Cycle Flowsheet

  

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Silvercorp Metals Inc
NI 43-101 Technical Report Update on the GC Ag-Zn-Pb Project in
Guangdong Province, People’s Republic of China

Table 16.6 Results of Recovering Sn Using Gravity Test

Product Weight (%)  Grades (%)  Sn Recovery Rates (%) 
Processing  Ore  S Sn Processing  Ore 
Tin Con.  0.13  0.10  0.53  56.73  28.94  28.37 
Tin Intermediate Con.  2.19  1.68  -  2.69  23.05  22.60 
Sulphur Con.  0.07  0.05  6.86  8.11  2.07  2.03 
Tailing  97.62  75.05  -  0.12  45.94  45.03 
Feed  100  -  -  0.25  100.00  - 
Ore             -  76.88  -  0.20  -  98.02 

Copper head grade in ore was 0.16%. After flotation, lead concentrate contained 3% copper. A test also conducted to float copper from lead concentrate. The test was carried out using one rougher and one cleaner. Test results are shown in Table 16.7.

Table 16.7 Results of Recovering Copper from Lead Concentrate

Product
Name 
Weight
(%) 
Grades (%) Recovery Rate (%) 
Cu  Pb  Zn  Cu  Pb  Zn 
Copper Con.  11.32  18.44  7.18  16.72  69.12  1.73  20.20 
Copper intermediate Con.  15.07  4.38  26.27  23.03  21.86  8.45  37.05 
Lead Con. (Separated)  73.61  0.37  57.16  5.44  9.02  89.81  42.75 
Lead Con.  100.00  3.02  46.85  9.37  100.00  100.00  100.00 

16.3 Bulk Density

A total of 62 samples were taken for bulk density measurement. The tests were done using the wax-immersion method by Guangdong Material Test Centre, a Chinese government certified lab located in Guangzhou, Guangdong, China. Samples ranged in size from 470 to 2,690g. Based on a cutoff grade of 100g/t AgEq (no recoveries included), the results of 56 samples were used to calculate the average bulk density for each vein on the GC property. The average bulk density is determined to be 3.57t/m3. Note that one extreme high grade sample, returning a value of 5.51 t/m3 and containing 2,793 g/t Ag, 53.04% Pb, 6.44% Zn was excluded from the overall bulk density calculation. Detailed bulk density sample data is listed in Appendix VI.

The average grades for these 56 samples are 176 g/t Ag, 1.99% Pb, and 4.47% Zn. In theory, bulk density is related positively to metal contents, especially lead and zinc. However, bulk density is sometimes high in low grade material if the pyrite content is high and it is noted that the GC deposit is rich in pyrite.

Bulk density values were assigned to three different grade groups as shown in Table 16.8.

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Silvercorp Metals Inc
NI 43-101 Technical Report Update on the GC Ag-Zn-Pb Project in
Guangdong Province, People’s Republic of China

AMC is satisfied with the procedures and approach taken by Silvercorp to determining bulk density values for resource estimation purposes. Nevertheless, AMC recommends that additional bulk density determinations be done on a regular basis with checks from different independent laboratories.

Table 16.8 Variation in Bulk Density Measurements

Grade (Pb+Zn)  10%  4-10%  4% 
No. of Samples  12  17  27 
% of samples  21.4%  30.4%  48.2% 
SG  3.79  3.73  3.37 
Average based on % of samples in different grade group  3.57

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Silvercorp Metals Inc
NI 43-101 Technical Report Update on the GC Ag-Zn-Pb Project in
Guangdong Province, People’s Republic of China

17 MINERAL RESOURCE AND RESERVE ESTIMATE

The mineral resource categories used in this report are those established by the Canadian Institute of Mining, Metallurgy and Petroleum (CIM) in the CIM Standards on Mineral Resources and Reserves, Definitions and Guidelines as adopted by the CIM Council dated December 2005. These resource definitions are summarized as follows:

A Mineral Resource is a concentration or occurrence of diamonds, natural solid inorganic material, or natural solid fossilized organic material including base and precious metals, coal, and industrial minerals in or on the Earth’s crust in such form and quantity and of such a grade or quality that it has reasonable prospects for economic extraction. The location, quantity, grade, geological characteristics and continuity of a Mineral Resource are known, estimated or interpreted from specific geological evidence and knowledge.


A Measured Mineral Resource is that part of a Mineral Resource for which quantity, grade or quality, densities, shape, physical characteristics are so well established that they can be estimated with confidence sufficient to allow the appropriate application of technical and economic parameters, to support production planning and evaluation of the economic viability of the deposit. The estimate is based on detailed and reliable exploration, sampling and testing information gathered through appropriate techniques from locations such as outcrops, trenches, pits, workings and drill holes that are spaced closely enough to confirm both geological and grade continuity.

An Indicated Mineral Resource is that part of a Mineral Resource for which quantity, grade or quality, densities, shape and physical characteristics can be estimated with a level of confidence sufficient to allow the appropriate application of technical and economic parameters, to support mine planning and evaluation of the economic viability of the deposit. The estimate is based on detailed and reliable exploration and testing information gathered through appropriate techniques from locations such as outcrops, trenches, pits, workings and drill holes that are spaced closely enough for geological and grade continuity to be reasonably assumed.

An Inferred Mineral Resource is that part of a Mineral Resource, for which quantity and grade or quality can be estimated on the basis of geological evidence and limited sampling and reasonably assumed, but not verified, geological and grade continuity. The estimate is based on limited information and sampling gathered through appropriate techniques from locations such as outcrops, trenches, pits, workings and drill holes.”

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Silvercorp Metals Inc
NI 43-101 Technical Report Update on the GC Ag-Zn-Pb Project in
Guangdong Province, People’s Republic of China

Mineralization in the GC Project consists of narrow vein type deposits which occur as discrete planes of variable grade and variable thickness. The resources were outlined using polygonal methods on longitudinal sections constructed for each vein. The resource estimates reported herein were prepared using such methods by Mr. Wang Qiang, Chief Geologist of Yangtze, and Mr. Myles J. Gao, P.Geo, President of Silvercorp, who is a Qualified Person, as defined by NI 43-101. AMC has reviewed Silvercorp’s methodologies and data used to prepare the resource estimates and is satisfied that they comply with reasonable industry practice, subject to a qualification with respect to use of the polygonal method. Although this is a common estimation method in China and its use by Silvercorp therefore accords with common industry practice in that country, the technique tends to produce estimates that are higher in grade and lower in tonnage than methods in common use in Canada, such as kriging or inverse distance weighting.

Following is an explanation with comments regarding the parameters and assumptions used to prepare the resource estimations reported in this Technical Report:

  • A polygonal block model was used in this resource estimation.

  • The polygonal block model utilizes detailed long-sections constructed for each of the veins. The topographic control for these sections is taken from 1:2,000 topographic map.

  • Polygonal resource blocks drawn on long-sections of the vein were constructed, and their areas measured, using MapGIS, a MapInfo-like GIS software application widely used in China.

  • Sulphide resources are estimated using only the assays obtained from drilling and historical tunnelling. A small portion of samples (41 assays) from 17 surface trenches were used for the oxide block resource estimates. Channel samples from tunnels were taken by GIGS from 2003 to 2005. Yangtze Mining performed a check by re-sampling the channels and found the GIGS results were reliable.

  • The minimum cut-off thickness used for mineralization is 0.20m.

  • The veins are polymetallic containing several payable metals. Although contents of each of the payable metals are separately reported in the resource estimations, Silvercorp uses an “equivalent-silver” value to assess and compare the vein resources. The “equivalent-silver” value, which are reported in the resource estimate tables, are calculated as follows:

     
    AgEq(g) = ((Ag g/t * $Ag/g * Ag Recovery) / $Ag/g) 
                    + ((Pb% * $Pb/lb * Pb Recovery * 22.0462) / $Ag/g) 
                    + ((Zn% * $Zn/lb * Zn Recovery * 22.0462) / $Ag/g) 

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    Silvercorp Metals Inc
    NI 43-101 Technical Report Update on the GC Ag-Zn-Pb Project in
    Guangdong Province, People’s Republic of China

    Metal prices used: 
                         Ag: US$12.00/troy ounce = US$0.39/g 
                         Pb: US$0.75/pound 
                         Zn: US$0.75/pound 
    Recoveries used: 
                         Ag: 84.82% 
                         Pb: 84.57% 
                         Zn: 88.42% 
    Conversions 
                         1 troy ounce = 31.1035 grams
                         1 tonne = 2204.62 pounds 

  • Potentially payable tin and sulphur concentrates have not been included in the silver equivalent calculation.

  • Refinery costs have not been included in the silver equivalent calculation.

  • Metal prices used in this report are the median prices from selected technical reports on similar deposit types filed on SEDAR between November 2008 and April 2009.

    A top-cut has been applied to silver, zinc, and lead. Values of the top-cuts for each of the veins and commodities are listed in Table 17.1.

    Table 17.1 Top-cuts of different veins

    Vein # Top cuts

    No. of Assays Exceeding 
    Top-cuts 

    Ag (g/t)  Pb (%)  Zn (%)  Ag  Pb  Zn 
    V2  968  10.94  22.30  1  2  0 
    V2-0  660  9.96  18.89  0  1  0 
    V2-1  697  3.59  9.93  1  0  0 
    V2-2  421  5.92  18.03  1  0  0 
    V3  1318  40.30  36.56  1  0  0 
    V4  1444  6.49  14.43  0  0  0 
    V5  1453  8.28  21.53  0  0  0 
    V5-1  472  3.49  14.03  0  0  1 
    V6  840  5.32  19.17  1  0  1 
    V6-0  1123  11.80  15.33  0  0  0 
    V7  419  6.71  20.88  0  1  0 
    V7-0  678  5.56  21.93  0  1  0 
    V7-1  483  5.42  16.75  1  0  0 
    V8  669  14.88  4.25  0  0  0 
    V8-0  3329  0.78  1.85  0  0  0 
    V8-1  1314  5.13  3.33  0  0  0 

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    Silvercorp Metals Inc
    NI 43-101 Technical Report Update on the GC Ag-Zn-Pb Project in
    Guangdong Province, People’s Republic of China

    (Table 17.1 cont’d)
    Vein # Top cuts No. of Assays Exceeding
    Top-cuts
    Ag (g/t)  Pb (%)  Zn (%)  Ag  Pb  Zn 
    V9  675  7.54  23.91  0  0  0 
    V9-0  353  12.89  17.50  0  0  0 
    V9-1  927  14.30  25.74  0  0  0 
    V10  1116  10.77  8.34  0  0  1 
    V10-1  475  7.29  44.44  1  2  0 
    V11  790  5.66  20.17  0  0  0 
    V13  781  5.84  13.83  0  0  0 
    V14  472  19.51  9.37  0  0  0 
    V15  396  3.53  4.69  0  0  0 
    V15-1  2107  12.32  12.88  0  0  0 
    Total        7  7  3 

  • No dilution has been applied with the exception of the 11 individual Resource block occurrences below 0.20m in horizontal width in the dataset used for the resource estimate. Those 11 occurrences were diluted at zero grade to 0.20m in horizontal width.

  • Any interpolations are based upon vein thickness and grade.

  • The wall rock surrounding the veins is in sharp contact with the veins and commonly silicified.

  • The data and methods employed are adequate to allow resources to be categorized as Measured, Indicated and Inferred.

  • Resource blocks categorized as “Measured” are defined by assays from tunnel samples on vein and drill holes samples. These blocks are projected up to 25m above and below a given tunnel where warranted, and along strike from a given tunnel intersection or projected from a drill hole intercept within 50m of a tunnel sample.

  • Resource blocks categorized as “Indicated” begin either above or below a Measured Resource block or are projected from a drill intercept. For blocks projected from the Measured resource blocks, the distances are not greater than 50m. For blocks projected from drill holes, the distances are not greater than 50 to 60m. Block boundaries are defined as the midpoint between drill holes.

  • Resource blocks categorized as “Inferred” use grades and thicknesses derived from the average of all the Measured and Indicated blocks along the vein. For veins intersected by deep holes, the Inferred Resource blocks are projected 100m down-dip from the Indicated blocks.

     

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    Silvercorp Metals Inc
    NI 43-101 Technical Report Update on the GC Ag-Zn-Pb Project in
    Guangdong Province, People’s Republic of China

    17.1 Resource Data and Statistics

    The information used to estimate project resources is maintained in a series of linked Excel worksheets maintained for all exploration areas. The worksheets contain individual sample information such as sampling dates, locations, sample number, elevation, width, and assay results, and additionally, for drill holes, collar information, down hole survey data, sample intervals, and assay results. The data are organized in a manner such that information plotted on the vein long-sections and used to constrain boundaries of the resource block polygons can be readily retrieved and verified, samples on a vein-by-vein basis, and within each vein on a pocket-by-pocket basis, such that widths, grades and tonnages can be calculated if warranted down to very small blocks or areas within each vein.

    There are 5,280 samples in the database. 740 of these samples are used to define 26 veins in which 492 samples are used for resource estimates (Table 17.2).

    Table 17.2 Number of Samples and Assays in Resource Estimates for Different Veins


    Vein #

    No. of
    channel
    samples 
    No. of drill
    hole
    Samples 
    No. of
    channel and
    drill holes
    samples 
    No. of assays for each metal

    Ag 

    Pb  Zn  Sn 

    V2 

    25  120  145  145  145  145  132 

    V2-0 

    0  17  17  17  17  17  15 

    V2-1 

    1  33  34  34  34  34  34 

    V2-2 

    5  33  38  38  38  38  36 

    V3 

    4  1  5  5  5  5  4 

    V4 

    9  3  12  12  12  12  12 

    V5 

    2  12  14  14  14  14  13 

    V5-1 

    3  11  14  14  14  14  12 

    V6 

    4  25  29  29  29  29  27 

    V6-0 

    0  12  12  12  12  12  12 

    V7 

    1  39  40  40  40  40  40 

    V7-0 

    0  20  20  20  20  20  20 

    V7-1 

    0  21  21  21  21  21  21 

    V8 

    2  3  5  5  5  5  5 

    V8-0 

    0  2  2  2  2  2  2 

    V8-1 

    0  2  2  2  2  2  2 

    V9 

    0  11  11  11  11  11  11 

    V9-0 

    0  5  5  5  5  5  5 

    V9-1 

    0  4  4  4  4  4  4 

    V10 

    11  13  24  24  24  24  14 

    V10-1 

    0  14  14  14  14  14  14 

    V11 

    2  1  3  3  3  3  2 

    V13 

    0  7  7  7  7  7  7 

    V14 

    0  3  3  3  3  3  3 

    V15 

    0  10  10  10  10  10  10 

    Total 

    69  422  491  491  491  491  457 

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    Silvercorp Metals Inc
    NI 43-101 Technical Report Update on the GC Ag-Zn-Pb Project in
    Guangdong Province, People’s Republic of China

    17.2 Resource Estimates

    The Ag-Zn-Pb metals are reported separately in the resource estimates. A range of recovered cut-off values is presented in Table 17.5 to demonstrate sensitivity. AMC is not aware of any environmental, permitting, legal, title, taxation, socio-economic, marketing or political issues that would materially affect the mineral resource estimate in Table 17.6. The GC Project contains two additional commodities that have not been incorporated into the silver equivalent calculation. The first is sulphur which would take the form after processing of a sulphur concentrate containing silver. The silver in the sulphur concentrate has been accounted for in the silver equivalent equation. The second commodity that has not been accounted for in the silver equivalent equation is tin. Silvercorp is researching the potential to produce tin as a saleable product but at the time of the production of the resource estimate the issue remained undetermined.

    Mineral resources that are not mineral reserves do not have demonstrated economic viability.

    Table 17.3 Resources at 50g/t Recovered Silver Equivalent Cut-off Intervals

    Measured and Indicated Resources  Tonnes  Ag (g)  Pb %  Zn %  AgEq (g) 
    50g/t Recovered AgEq Cut-off  10,165,000  104  1.13  2.67  230 
    100g/t Recovered AgEq Cut-off  9,123,000  111  1.21  2.87  246 
    150g/t Recovered AgEq Cut-off  6,408,000  138  1.49  3.34  298 
    200g/t Recovered AgEq Cut-off  5,079,000  155  1.63  3.64  328 
    250g/t Recovered AgEq Cut-off  3,632,000  181  1.88  3.95  371 
    300g/t Recovered AgEq Cut-off  2,970,000  197  1.97  4.08  393 

    The estimated mineral resources for the 26 veins of the GC project are summarized in the following table using the 150g/t recovered AgEq cut-off. The result of the update was an increase of 250% in the sum of the Measured and Indicated Resources for the project. Note the subtotals have been rounded and may not sum to the totals due to the rounding.

    Table 17.4 Summary of Mineral Resources

    Resource
    Classification 
    Tonnes  GRADE Contained Metal
        Ag (g)  Pb %  Zn %  Ag (kg)  Pb (t)  Zn (t) 
    Measured  374,000  233  1.83  3.19  87,000  6,850  11,920 
    Indicated  6,034,000  132  1.47  3.35  799,100  88,710  202,230 
    Total  6,408,000  138  1.49  3.34  886,100  95,570  214,160 

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    Silvercorp Metals Inc
    NI 43-101 Technical Report Update on the GC Ag-Zn-Pb Project in
    Guangdong Province, People’s Republic of China

    Resource
    Classification 
    Tonnes  GRADE Contained Metal
        Ag (g)  Pb %  Zn %  Ag (kg)  Pb (t)  Zn (t) 
    Inferred  7,892,000  121  1.45  2.70  957,200  114,570  213,380 

    A detailed vein-by-vein breakdown of the estimated mineral resources is provided in the Table 17.5 and 17.6.

     

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    Silvercorp Metals Inc
    NI 43-101 Technical Report Update on the GC Ag-Zn-Pb Project in
    Guangdong Province, People’s Republic of China

    Table 17.5 Measured and Indicated Resource Estimate by Vein

    Vein  Classification 

    Tonnes
    (000)

    Grade Recovered
    Silver
    (Equiv)
    Sn
    (%)
    Ag
    (kg)
    Pb
    (t)
    Zn
    (t)
    Sn
    (t)
          Ag (g)  Pb (%)  Zn (%)             
    V2  Measured  228 239  1.42  3.78  397  0.23  54,444  3,234  8,598  533 
      Indicated  2,586 149  1.43  3.40  307  0.25  384,808  36,943  88,000  6,392 
    V2-0  Measured                     
      Indicated  116 114  2.34  3.74  323  0.10  13,190  2,721  4,342  117 
    V2-1  Measured  2 10  0.04  6.06  239  0.02  20  1  121  0 
      Indicated  295 120  0.78  2.44  223  0.36  35,465  2,302  7,203  1,066 
    V2-2  Measured  6 45  1.40  3.16  208  0.18  254  80  180  10 
      Indicated  222 75  1.53  4.57  292  0.20  16,633  3,404  10,130  444 
    V3  Measured  6 137  13.74  10.74  1,022  0.05  825  825  645  3 
      Indicated  29 100  9.22  7.90  718  0.03  2,887  2,651  2,271  9 
    V4  Measured  39 213  0.87  0.17  218  0.09  8,247  338  67  36 
      Indicated  140 209  0.78  1.32  255  0.10  29,207  1,091  1,846  144 
    V5  Measured                     
      Indicated  103 205  1.24  3.24  341  0.11  21,030  1,268  3,319  117 
    V5-1  Measured                     
      Indicated  90 154  1.07  4.15  326  0.23  13,861  965  3,739  210 
    V6  Measured                     
      Indicated  286 126  1.07  4.83  329  0.17  36,102  3,069  13,787  489 
    V6-0  Measured                     
      Indicated  202 192  2.49  2.73  357  0.18  38,937  5,033  5,515  365 
    V7  Measured                     
      Indicated  427 57  1.20  3.71  232  0.16  24,187  5,114  15,845  697 
    V7-1  Measured                     
      Indicated  140 162  1.06  3.55  310  0.21  22,679  1,489  4,971  300 
    V7-0  Measured                     
      Indicated  219 99  0.70  3.42  235  0.20  21,631  1,531  7,486  447 
    V8  Measured                     
      Indicated  122 95  3.83  0.90  254  0.08  11,609  4,684  1,097  99 
    V8-0  Measured                     
      Indicated  26 582  0.12  0.25  508  0.02  15,006  32  64  6 
    V8-1  Measured                     
      Indicated  8 396  2.22  1.14  460  0.27  3,347  188  96  23 
    V9  Measured                     
      Indicated  327 92  1.31  2.97  238  0.12  30,071  4,275  9,727  389 
    V9-0  Measured                     
      Indicated  162 65  2.14  2.61  232  0.24  10,564  3,484  4,243  385 
    V9-1  Measured                     
      Indicated  86 127  1.82  3.94  323  0.20  10,937  1,568  3,394  171 
    V10  Measured  94 247  2.52  2.46  394  0.03  23,215  2,372  2,314  33 
      Indicated  107 238  2.37  2.37  378  0.03  25,390  2,530  2,526  31 
    V10-1  Measured                     
      Indicated  133 68  1.15  6.02  328  0.25  9,063  1,523  8,006  330 
    V11  Measured                     
      Indicated  38 85  0.71  3.51  231  0.01  3,254  271  1,340  6 
    V13  Measured                     
      Indicated  100 103  0.88  2.16  201  0.08  10,331  885  2,162  78 
    V14  Measured                     
      Indicated  53 71  2.61  1.53  212  0.14  3,773  1,394  817  77 
    V15  Measured                     
      Indicated                     
    V15-1  Measured                     
      Indicated  17 301  1.76  1.84  389  0.09  5,158  302  315  15 
    Measured and Indicated  6,408 138  1.49  3.34  298  0.20  886,100  95,570  214,160  13,020 

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    NI 43-101 Technical Report Update on the GC Ag-Zn-Pb Project in
    Guangdong Province, People’s Republic of China

    Table 17.6 Inferred Resource Estimate by Vein

    Vein Classification Tonnes
    (000)
    GRADE Recovered
    Silver
    (Equiv)
    Sn
    (%)
    Ag
    (kg)
    Pb
    (t)
    Zn
    (t)
    Sn
    (t)
          Ag  Pb  Zn             
    V2  Inferred 

    1,338

    135  1.79  3.44  310  0.31  179,994  23,941  46,075  4,150 
    V2-0  Inferred 

    75

    176  3.66  4.71  460  0.14  13,157  2,743  3,532  108 
    V2-1  Inferred 

    132

    140  0.44  0.45  152  0.12  18,393  586  595  156 
    V2-2  Inferred 

    136

    73  0.47  3.31  205  0.27  9,965  640  4,509  366 
    V3  Inferred 

    118

    139  4.50  4.29  444  0.03  16,417  5,304  5,049  31 
    V4  Inferred 

    182

    210  1.10  3.23  341  0.18  38,243  2,007  5,882  332 
    V5  Inferred 

    166

    219  1.20  2.96  342  0.13  36,376  1,992  4,907  211 
    V5-1  Inferred 

    44

    115  0.69  2.02  199  0.14  5,020  301  886  62 
    V6  Inferred 

    1,103

    59  0.85  2.78  186  0.14  64,627  9,420  30,621  1,559 
    V6-0  Inferred 

    897

    183  1.84  2.16  304  0.19  163,740  16,532  19,363  1,727 
    V7  Inferred 

    70

    71  0.70  4.44  254  0.23  5,000  488  3,110  161 
    V7-1  Inferred 

    477

    60  0.79  2.38  169  0.15  28,418  3,779  11,335  703 
    V7-0  Inferred 

    224

    114  0.72  3.65  261  0.29  25,584  1,607  8,158  658 
    V8  Inferred 

    162

    142  3.03  0.69  256  0.07  23,072  4,900  1,112  115 
    V8-0  Inferred 

    50

    420  0.11  0.27  371  0.02  20,878  53  136  8 
    V8-1  Inferred 

    32

    396  2.22  1.14  460  0.27  12,528  702  361  85 
    V9  Inferred 

    526

    99  0.93  3.69  258  0.14  52,151  4,908  19,400  758 
    V9-0  Inferred 

    591

    47  1.76  2.47  197  0.20  27,489  10,391  14,599  1,170 
    V9-1  Inferred 

    230

    134  2.12  3.58  327  0.18  30,910  4,885  8,225  422 
    V10  Inferred 

    286

    213  1.65  0.23  249  0.05  60,852  4,710  662  131 
    V10-1  Inferred 

    79

    68  0.88  6.96  353  0.29  5,366  697  5,506  231 
    V11  Inferred 

    251

    117  0.82  2.79  235  0.02  29,330  2,065  6,984  56 
    V13  Inferred 

    379

    115  0.84  1.94  202  0.07  43,787  3,169  7,352  254 
    V14  Inferred 

    249

    67  2.83  1.30  208  0.12  16,670  7,048  3,239  299 
    V15  Inferred                     
    V15-1  Inferred 

    97

    301  1.76  1.84  389  0.09  29,219  1,709  1,786  87 
     
    Inferred 

    7,892

    121  1.45  2.70  258  0.18  957,200  114,570  213,380  13,840 

    The following figures are grade tonnage curves for each of the three primary metals for the GC Project followed by a figure for the silver equivalent as per Table 17.5.

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    Silvercorp Metals Inc
    NI 43-101 Technical Report Update on the GC Ag-Zn-Pb Project in
    Guangdong Province, People’s Republic of China

    Figure 17.1 Silver Grade Tonnage Curve


    Figure 17.2 Lead Grade Tonnage Curve


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    Silvercorp Metals Inc
    NI 43-101 Technical Report Update on the GC Ag-Zn-Pb Project in
    Guangdong Province, People’s Republic of China

    Figure 17.3 Zinc Grade Tonnage Curve

     


    Figure 17.4 Recovered Silver Equivalent Grade Tonnage Curve


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    Silvercorp Metals Inc
    NI 43-101 Technical Report Update on the GC Ag-Zn-Pb Project in
    Guangdong Province, People’s Republic of China

    Figure 17.5 Longitudinal Projection of V2-0 Vein

     


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    Silvercorp Metals Inc
    NI 43-101 Technical Report Update on the GC Ag-Zn-Pb Project in
    Guangdong Province, People’s Republic of China

    Figure 17.6 Longitudinal Projection of V2 Vein


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    Silvercorp Metals Inc
    NI 43-101 Technical Report Update on the GC Ag-Zn-Pb Project in
    Guangdong Province, People’s Republic of China

    Figure 17.7 Longitudinal Projection of V7-0 Vein


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    Silvercorp Metals Inc
    NI 43-101 Technical Report Update on the GC Ag-Zn-Pb Project in
    Guangdong Province, People’s Republic of China

    Figure 17.8 Longitudinal Projection of V7 Vein


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    Silvercorp Metals Inc
    NI 43-101 Technical Report Update on the GC Ag-Zn-Pb Project in
    Guangdong Province, People’s Republic of China

    Figure 17.9 Longitudinal Projection of V10-1 Vein


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    Silvercorp Metals Inc
    NI 43-101 Technical Report Update on the GC Ag-Zn-Pb Project in
    Guangdong Province, People’s Republic of China

    18 OTHER RELEVANT DATA AND INFORMATION

    Sulphur and tin are potentially economic commodities that have not been fully explored in this report.

    18.1 Mining Method

    Two mining methods which have been applied at the company’s Ying, TLP and LM mines to extract very narrow vein mineralization are described in the Silvercorp 2009 Annual Information Form and presented below. AMC understands that these methods are being considered for the GC Project with the potential to mechanize parts of the mining methods.

    1) Short-Hole Shrinkage Stoping:

    This has been employed worldwide as a successful mining method for narrow veins. The system begins with undercut drifting exposing the vein in the back of the drift. A bypass drift is then driven from where crosscuts at approximately 8m spacing are driven. The crosscuts which intersect the vein act as draw points for the loading out of ore. Two raises are driven at each end of the stoping block.

    The typical size of a stope is 50m along strike of the vein and approximately 40m in height. Two access raises approximately 1.8m by 1.8m are driven providing access to the stope and services air, water and ventilation. The average width of all veins in the TLP mine is 1.57m and 0.8m is the minimal width that can be mined using short-hole shrinkage with very little dilution. Veins which are less than 0.8m must be diluted to 0.8m with the assumption that the waste contains no grade. It is expected that 80- 85% mining recovery of in situ resources is possible.

    The mining crew normally consists of two Jack Leg miners. A 1.8m round is blasted filling the void below as the mining proceeds upwards. While the crew is mining upwards only approximately 30% of the ore may be extracted from the stope until the entire stope is mined at which point all ore may be extracted. During the initial phase of mining, expected production is 50-75 tons per day per stope. The mine plan is a combination of completed and developing stopes. The crew drills and charges the holes with cartridge explosives and ignite the blast with tape fuse. A second crew will return to the stope after the smoke has cleared from the previous round. Ventilation air and water are carried up the raises to the stopping level. Loading of the ore from the draw points is by hand to diesel tricycle carts or hand carts.

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    Guangdong Province, People’s Republic of China

    2) Re-suing

    The re-suing methods involve first blasting narrow ore veins between 0.l and 0.40m in width. After the ore is blasted and loaded from steel mill holes which are constructed as the stope is mined upwards, the waste on the footwall and hanging wall is blasted to maintain a minimum mining width of 0.8m. The stope will contain no ore when mining is complete in contrast to the method above. The stope is left filled with waste from the slashing of the footwall and hanging wall waste necessary to maintain a minimum mining thickness. For the re-suing method, the dilution factor is 15% and mining recovery is 90%.

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    Guangdong Province, People’s Republic of China

    19 INTERPRETATION AND CONCLUSIONS

    Silvercorp has a good understanding of the geology and mineralized trends on the property. AMC notes that the veins outlined to date have not been closed off by drilling and it is anticipated that ongoing exploration will continue to increase the overall resource and upgrade the classification of known resources.

    A metallurgical test program was completed in May 2009 on the GC Project mineralization. The test work indicates, on a rounded percentage basis, an 85%, 88% and 85% recovery in concentrate for Ag, Pb and Zn respectively.

    Mineral Resources estimates were prepared by Silvercorp and reviewed and classified by AMC following CIM best practices. Using a 150g/t (recoveries included) AgEq cut-off Measured and Indicated Resources are estimated to total 6,408,000 tonnes grading 138g/t Ag, 1.49% Pb and 3.34% Zn. Inferred Mineral Resources are estimated to total 7,892,000 tonnes grading 121g/t Ag, 1.45% Pb and 2.70% Zn.

    As of May 2009, Silvercorp has made the following progress in applying for a mining permit and advancing the project towards production:

          
  •   
  • An Environmental Assessment Report was completed in March 2009 and passed a review by an expert panel appointed by the Environmental Production Bureau of  Guangdong. Pending receipt of the final approval, a mining permit application can  be submitted to the Ministry of Land and Resources of China in Beijing.

  • Silvercorp has engaged a Chinese engineering firm with Class A qualifications in mine  and mill design to provide a full mine and mill design for the project.

    Silvercorp’s mining experience includes majority ownership of four mines in the Ying Mining District of Hunan Province in central China held in two Sino-Foreign Cooperative Joint Venture companies. In addition, Silvercorp owns and operates two flotation mills in the Ying Mining District.

     
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    NI 43-101 Technical Report Update on the GC Ag-Zn-Pb Project in
    Guangdong Province, People’s Republic of China

    20 RECOMMENDATIONS

    Given the success of Silvercorp’s 2008 (fiscal 2009) exploration program, The Company’s primary focus in 2009 (fiscal 2010) at the GC Project is the mining permit application. The long-term goal is to put the GC Project into production.

    The company has budgeted approximately $4 million for the GC Project in 2009 (fiscal 2010) for exploration, mine and mill designs, permitting, associated reports and reporting. The exploration program will be composed of approximately 3,000m of diamond drilling. A Chinese firm has been engaged for the mine and mill design.

    Table 20.1 Planned 2009 Budget for the GC Project

    Work Type US$'000

    Office General and Administration

     

    253

    GC Exploration

       

    Drill Contractor

    704

     

    Reports, Mine and Mill Designs

    435

     

    Project Exploration Overhead

    253

     

                                                                           Subtotal

     

    1,391

    Development Expenditures

       

    Land Purchase

    1,176

     

    Road Construction

    294

     

    Mine Equipment

    118

     

    Office Building Construction

    176

     

    Tunnelling

    441

     

    Power Equipment and Construction

    88

     

                                                                           Subtotal

     

    2,293

    Other

     

    47

                                                                                     Total

     

    3,984


    AMC has reviewed Silvercorp’s exploration and development plans and budget and is of the opinion that they are well conceived and appropriate to the stage of the project. AMC recommends Silvercorp conduct the program as proposed subject to funding and any other findings or events during the exploration and design phase.

    AMC makes the following recommendations with respect to resource estimation:

      1) 

    AMC would recommend that Silvercorp undertake variography studies to refine the understanding of the grade distribution and utilize a kriging or inverse distance weighting approach to grade interpolation prior to future resource and reserve estimations.

      2) 

    Continue the wax immersion bulk density measurements and continue to analyse the data on a vein by vein basis. AMC would suggest a sulphur or sulphide analysis as a basis for the bulk density assumptions.


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    Guangdong Province, People’s Republic of China

      3)     

    Carry out further studies into the potentially economic Sn and S components of the milling process.

    4)     

    Carry out further metallurgical and mining studies into the oxidized zone prior to a future resource and reserve estimation.

    5)     

    Consider the use of either electro-magnetic or induced polarization/resistivity surveys to help predict the orientation and extent of the structures bearing pyrite and/or galena.

    6)     

    AMC recommends that the underground workings be reopened once the mining permit has been granted and that consideration be given to collecting a bulk sample and undertaking a test mining program.


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    Silvercorp Metals Inc
    NI 43-101 Technical Report Update on the GC Ag-Zn-Pb Project in
    Guangdong Province, People’s Republic of China

    21 REFERENCES

    Anhui Yangzi Mining Co. Ltd., November 2007. The summary of the work at Shimentou project area.

    Guangdong Provincial Institute of Geological Survey, April 2005. Geological report about general prospecting on Jianshan-Shimentou Pb-Zn multi-metallic deposit, Yunfu city, Guangdong province Guangdong Provincial Institute of Geological Survey, September 2007. Geological report about detailed prospecting on GC Pb-Zn-Ag deposit, Yunfu city, Guangdong province Jia, Shouyi and Songqing, Ye, 2003. Mineral Resource Exploration. Geological Publishing Liu, Jinhui, Niu, Lanliang, Xu, Anson, and Wang, Zhaojun (SRK Consulting China Ltd.), April 2008: Technical Report On Gaocheng Ag-Zn-Pb Project and Shimentou Au-Ag-Zn-Pb Project, Guangdong Province, People’s Republic of China Silvercorp Metals Inc. (April 28, 2008). Silvercorp Acquires Significant Silver-Lead-Zinc Resources in Guangdong Province, Southern China. Press Release. http://www.silvercorpmetals.com/news/2008/index.php?&content_id=106

    Silvercorp Metals Inc. (June 6, 2008). Silvercorp Completes Acquisition of Significant Silver-Lead-Zinc Resources in Guangdong Province, Southern China. Press Release. http://www.silvercorpmetals.com/news/2008/index.php?&content_id=110

    Silvercorp Metals Inc. (January 8, 2009). Drilling Intersects High-Grade Silver Mineralization in V2 and V6 Veins at the GC Silver-Lead-Zinc Project in Guangdong Province, Southern China. Press Release. http://www.silvercorpmetals.com/news/index.php ?&content_id=180

    Silvercorp Metals Inc. (June 5, 2009). Annual Information Form. Annual Report. http://www.silvercorpmetals.com/_resources/Silvercorp_AIF_rev_SEDAR_opt.pdf

    Silvercorp Metals Inc. (June 3, 2009). Consolidated Financial Statements. Annual Report. http://www.silvercorpmetals.com/_resources/fin/annual/2009_SVM_FS_final.pdf

    Silvercorp Metals Inc. (June 3, 2009). Management’s Discussion and Analysis (“MD&A”). Annual Report. http://www.silvercorpmetals.com/_resources/fin/annual/2009_SVM _MDA _final.pdf

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    Silvercorp Metals Inc
    NI 43-101 Technical Report Update on the GC Ag-Zn-Pb Project in
    Guangdong Province, People’s Republic of China

    22 DATE AND SIGNATURE PAGE

    This report titled “NI 43-101 Technical Report Update on the GC Ag-Zn-Pb Project in Guangdong Province, People’s Republic of China” with an effective date of June 18, 2009 and dated June 22, 2009, was prepared and signed by the following author:


    Dated this 22nd day of June, 2009

    Signed and Sealed, Brian F J O’Connor

    Brian F J O’Connor P. Geo.
    Principal Geologist

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    NI 43-101 Technical Report Update on the GC Ag-Zn-Pb Project in
    Guangdong Province, People’s Republic of China

    23 CERTIFICATE OF QUALIFIED PERSON

    CERTIFICATE OF QUALIFIED PERSON

    NI 43-101 Technical Report Update on the GC Ag-Zn-Pb Project in Guangdong Province,
    People’s Republic of China for Silvercorp Metals Inc.
    Date June 22, 2009
    Brian F. J. O’Connor, P.Geo.

    I, Brian F J O’Connor, P.Geo. as an author of this report entitled “NI 43-101 Technical Report Update on the GC Ag-Zn-Pb Project in Guangdong Province, People’s Republic of China”, prepared for Silvercorp Metals Inc., dated June 22, 2009, do hereby certify that:

    1.     I am a Consulting Geologist with AMC Mining Consultants (Canada) Ltd. My office address is Suite 1330, 200 Granville Street, Vancouver, British Columbia, Canada V6C 1S4.

    2.     I am a graduate of the University of New Brunswick in 1985 with a Bachelor of Science degree in Geology.

    3.     I am a registered member of the Association of Professional Engineers and Geoscientists of BC. I have continually worked as a geologist for a total of 24 years. My relevant experience for the purpose of the Technical Report is:

    • Twenty-three years of experience as a geologist in mining and exploration environments.

    • Preparation of numerous reviews and reports on exploration and mining projects in Canada and around the world.

    • Chief Geologist with two mining companies in the province of British Columbia.

    • Senior Geologist with mining and exploration companies in New Brunswick, Quebec, Ontario and British Columbia.

    • Over 6 years experience specific to the exploration, evaluation and the mining of narrow vein deposits.

    4.     I have read the definition of "qualified person" set out in National Instrument 43-101 ("NI43-101") and certify that by reason of my education, affiliation with a professional association (as defined in NI43-101) and past relevant work experience, I fulfill the requirements to be a "qualified person" for the purposes of NI43-101.

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    NI 43-101 Technical Report Update on the GC Ag-Zn-Pb Project in
    Guangdong Province, People’s Republic of China

    5.     I visited the GC (Gaocheng) Property March 27 through March 30, 2009.

    6.     I am responsible for the preparation of this report, dated June 22, 2009.

    7.     I am independent of the Issuer applying the test set out in Section 1.4 of National Instrument 43-101.

    8.     I have had no prior involvement with the property that is the subject of the Technical Report.

    9.     I have read National Instrument 43-101, and the Technical Report has been prepared in compliance with National Instrument 43-101 and Form 43-101F1.

    10.   To the best of my knowledge, information and belief, the Technical Report contains all scientific and technical information that is required to be disclosed to make the technical report not misleading.


    Dated this 22nd day of June, 2009

    Signed and Sealed, Brian F J O’Connor

    Brian F J O’Connor P. Geo.
    Principal Geologist

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    Silvercorp Metals Inc
    NI 43-101 Technical Report Update on the GC Ag-Zn-Pb Project in
    Guangdong Province, People’s Republic of China

     

     


     

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    Appendix I

    Permits

     

     

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    Appendix II

    Internal Check Assays

     

     

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    Laboratories control accuracy of analytical results and sample handling by repetitious analysis, inserting standards and blanks.

    ALS Chemex analysed 54 duplicated sample pulps for 2,139 samples assayed in 2008. The assay results show that difference between originals and duplicates are minimum for all three metals (Ag, Pb, Zn). The correlation coefficients for Ag, Pb, and Zn are 0.9996, 0.9999, and 0.9998, respectively.

    Table II.1 ALS Chemex Duplicate Assay Results

    SAMPLE Originals Duplicates
    Ag (g/t) Pb (%) Zn (%) Ag (g/t) Pb (%) Zn (%)
    70088-DUP

    0.1

    0.01

    0.01

    0.1

    0.01

    0.01

    70128-DUP

    0.1

    0.01

    0.01

    0.1

    0.01

    0.01

    70168-DUP

    0.1

    0.01

    0.01

    1

    0.01

    0.01

    70198-DUP

    0.1

    0.01

    0.01

    0.1

    0.01

    0.01

    70208-DUP

    0.1

    0.01

    0.01

    1

    0.01

    0.01

    70244-DUP

    1

    0.01

    0.69

    1

    0.01

    0.68

    70272-DUP

    5

    0.07

    0.34

    5

    0.07

    0.33

    70275-DUP

    1

    0.03

    0.17

    1

    0.04

    0.18

    70311-DUP

    125

    0.11

    0.01

    133

    0.11

    0.01

    70347-DUP

    0.1

    0.01

    0.03

    0.1

    0.01

    0.03

    70383-DUP

    5

    0.01

    1.43

    7

    0.01

    1.38

    BT08-1-H8-DUP

    0.1

    0.01

    0.01

    1

    0.01

    0.01

    70415-DUP

    13

    0.09

    0.45

    14

    0.10

    0.46

    70459-DUP

    20

    0.14

    0.11

    19

    0.14

    0.1

    70565-DUP

    30

    0.18

    1.16

    29

    0.17

    1.14

    70601-DUP

    1

    0.06

    0.13

    1

    0.06

    0.14

    70637-DUP

    0.1

    0.005

    0.005

    0.1

    0.005

    0.005

    70673-DUP

    3

    0.02

    0.14

    3

    0.02

    0.14

    70698-DUP

    0.1

    0.005

    0.01

    1

    0.005

    0.01

    70734-DUP

    1

    0.005

    0.2

    0.1

    0.005

    0.19

    70773-DUP

    236

    2.13

    4.42

    234

    2.13

    4.38

    70791-DUP

    20

    0.16

    0.3

    17

    0.16

    0.3

    70828-DUP

    2

    0.03

    0.05

    1

    0.03

    0.05

    70864-DUP

    12

    0.22

    0.31

    12

    0.22

    0.31

    70900-DUP

    2

    0.02

    0.14

    2

    0.02

    0.14

    70936-DUP

    232

    2.15

    4.34

    232

    2.15

    4.35

    70972-DUP

    0.1

    0.06

    0.07

    0.1

    0.06

    0.07

    71008-DUP

    2

    0.01

    0.02

    2

    0.01

    0.02

    71044-DUP

    2

    0.03

    0.15

    2

    0.03

    0.15

    71080-DUP

    3

    0.04

    0.47

    3

    0.04

    0.45

    71116-DUP

    10

    0.1

    1.2

    11

    0.1

    1.23


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    71154-DUP

    4

    0.01

    0.18

    4

    0.01

    0.19

    71187-DUP

    1

    0.02

    0.08

    0.1

    0.02

    0.08

    71290-DUP

    1

    0.01

    0.34

    2

    0.01

    0.33

    71326-DUP

    9

    0.44

    0.77

    10

    0.44

    0.76

    71413-DUP

    1

    0.02

    0.22

    1

    0.02

    0.21

    71449-DUP

    0.1

    0.01

    0.02

    0.1

    0.01

    0.02

    71485-DUP

    16

    0.19

    1.47

    17

    0.18

    1.45

    71522-DUP

    0.1

    0.005

    0.01

    0.1

    0.005

    0.01

    71594-DUP

    240

    0.92

    2.15

    234

    0.93

    2.14

    71537-DUP

    2

    0.02

    0.05

    1

    0.02

    0.05

    71623-DUP

    0.1

    0.005

    0.02

    0.1

    0.005

    0.02

    71659-DUP

    1

    0.01

    0.64

    2

    0.01

    0.64

    71697-DUP

    5

    0.02

    0.04

    5

    0.02

    0.04

    71733-DUP

    1

    0.02

    0.09

    1

    0.02

    0.09

    71768-DUP

    0.1

    0.01

    0.1

    2

    0.01

    0.1

    71782-DUP

    0.1

    0.01

    0.01

    0.1

    0.01

    0.02

    71818-DUP

    299

    9

    6.31

    307

    9.08

    6.47

    71854-DUP

    5

    0.18

    0.29

    6

    0.19

    0.3

    71882-DUP

    7

    0.03

    0.64

    7

    0.03

    0.63

    71892-DUP

    11

    0.02

    1.43

    11

    0.02

    1.43

    71928-DUP

    1

    0.17

    0.23

    1

    0.17

    0.24

    71964-DUP

    1

    0.04

    0.14

    2

    0.04

    0.13

    72000-DUP

    3

    0.13

    0.2

    2

    0.12

    0.2

    Average

    25

    0.31

    0.59

    25

    0.32

    0.59


    ALS Chemex insert 2 standards (low and high Ag, Pb, and Zn values) for every 40 samples, resulting 122 standard analytical results for over 2,139 samples as shown in Table II-2. The results show that actual assays were in the normal range of standards for all three metals, indicating also the ALS Chemex’s assay results are accurate.

    Table II.2 Comparison of ALS Chemex Standard Values with Actual Assays

    Standard Name Metals Standards Assays
    Average Value  Range SD (Ã) Average Value  Range SD (Ã)
    GBM399-5 Ag (g/t) 24.20 22.35-26.05 1.424 24.95 23-26 1.13
    Pb (%) 2.12 2.033-2.201 0.047 2.12 2.05-2.20 0.04
    Zn (%) 0.95 0.906-0.993 0.027 0.93 0.91-0.97 0.02
    GBM306-12 Ag (g/t) 5.00 3.8-6.2 1.088 4.33 3-7 1.25
    Pb (%) 2.68 2.577-2.785 0.057 2.66 2.58-2.76 0.05
    Zn (%) 2.05 1.968-2.132 0.046 2.06 1.98-2.13 0.05
    GBM997-6c Ag (g/t) 462.70 445.51-479.89 9.097 455.24 446-476 10
    GBM398-4c Ag (g/t) 48.70 46.00-51.40 1.852 50.11 47-53 1.63

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    Guangdong Province, People’s Republic of China

    Sixty-two assay results of blanks inserted for every 40 GC samples by ALS Chemex are below detection limits for all three metals.



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    Appendix III

    External Check Assays

     

     

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    Silvercorp randomly selected 130 sample pulps from a total of 2,139 samples collected for 2008 drill program for external checks. Check analyzes were performed by Laboratory of the Henan Institute of Geological Survey in Zhengzhou, Henan Province. These external checks were selected based upon different cutoffs of silver equivalent grade of original assay results.

    Table III.1 Number of checks selected for each silver equivalent cutoffs

    Ag Equivalent
    (g/t)
    Totals
    Samples
    Checks
    Selected
    Checks out of
    total samples
    >=50 199 76 38%
    <50 1,940 54 3%
    Total 2,139 130 6%

    Analytical check result comparisons with the original analyzes are listed in Table IV-2. As shown in Table V-2 and V-3 and on scatter plots, for assays close to detect limits and magnitude of absolute differences between originals and checks are small.

    Table III.2 Summary of External Check Assay

    Metals ALS Chemex vs Henan Lab Difference in %
    Range Average
    Ag (g/t) -25~49 2.52 -11.5~23.08
    Pb (%) -0.22~0.20 0.01 -8.11~9.09
    Zn (%) -0.30~0.74 0.03 -4.9~9.09

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    Guangdong Province, People’s Republic of China

    Figure III.1 Scatter plot of silver external check assays


    Figure III.2 Scatter plot of lead check assays


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    Guangdong Province, People’s Republic of China

    Figure III.3 Scatter plot of Zn check assays


    Table III.3 Original and External Check Assay Results

         

    ALS Chemex

    Henan Lab

    Drill
    Hole

    Vein
    No.

    Sample

    Ag
    (g/t)

    Pb
    (%)

    Zn
    (%)

    Sn
    (%)

    Ag
    (g/t)

    Pb
    (%)

    Zn
    (%)

    Sn
    (%)

    ZK4001

    V2

    70034

    42

    2.02

    4.43

    0.14

    43

    1.97

    4.43

    0.14

    ZK4002   70139

    3

    0.04

    0.28

     

    3

    0.04

    0.29

    0.09

    ZK4002   70154

    2

    0.02

    0.17

     

    3

    0.02

    0.17

    0.06

    ZK4002

    V7

    70220

    63

    0.96

    3.78

    0.42

    62

    0.91

    3.60

    0.41

    ZK4002

    V2

    70273

    19

    0.45

    4.98

    0.46

    22

    0.46

    4.87

    0.49

    ZK4804

    V7-0

    70312

    218

    0.36

    0.02

    0.07

    223

    0.38

    0.02

    0.03

    ZK4804   70322

    36

    0.03

    0.24

     

    36

    0.03

    0.24

    0.02

    ZK4002

    V5

    70160

    76

    1.19

    5.71

    0.07

    79

    1.21

    5.56

    0.07

    ZK4804   70371

    7

    0.06

    0.11

    0.06

    9

    0.06

    0.10

    <0.01

    ZK4002   70388

    4

    0.01

    0.75

    0.14

    4

    0.01

    0.73

    0.12

    ZK4002   70166

    70

    0.30

    1.24

    0.04

    72

    0.30

    1.22

    0.04

    ZK4003   70450

    15

    0.37

    1.31

    0.28

    16

    0.37

    1.30

    0.27

    ZK4003   70477

    1

    0.01

    0.01

     

    1

    0.01

    0.01

    0.01

    ZK4003   70484

    1

    0.01

    0.01

     

    1

    0.01

    0.01

    0.01

    ZK4003   70495

    1

    0.01

    0.01

     

    1

    0.01

    0.01

    0.01

    ZK3607   70505

    2

    0.01

    0.01

     

    2

    0.01

    0.01

    0.01

    ZK3607   70519

    24

    0.81

    1.25

    0.15

    26

    0.83

    1.25

    0.14

    ZK3607   70521

    8

    0.23

    0.52

    0.04

    7

    0.23

    0.50

    0.04

    ZK3607

    V7-1

    70550

    57

    0.83

    1.10

    0.05

    56

    0.81

    1.06

    0.05


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    ZK3607   70559

    11

    0.01

    0.08

     

    10

    0.01

    0.08

    0.02

    ZK3607

    V2-1

    70588

    113

    1.57

    2.80

    0.37

    108

    1.49

    2.71

    0.40

    ZK3607   70624

    10

    0.01

    0.01

    0.03

    10

    0.01

    0.01

    0.03

    ZK3606   70639

    8

    0.03

    0.41

     

    11

    0.03

    0.39

    0.01

    ZK3606

    V2-1

    70650

    83

    2.03

    1.65

    0.14

    82

    1.97

    1.59

    0.15

    ZK3606   70671

    8

    0.01

    1.05

    0.04

    8

    0.01

    1.03

    0.04

    ZK3606

    V2

    70681

    26

    0.55

    3.98

    0.14

    27

    0.53

    3.92

    0.13

    ZK3606   70742

    8

    0.02

    0.45

    0.04

    9

    0.02

    0.44

    0.04

    ZK4402

    V5-1

    70780

    246

    0.27

    0.88

    0.03

    240

    0.26

    0.86

    0.03

             

    12.0

             
    ZK4402

    V5

    70789

    836

    7.15

     

    0.40

    800

    7.07

    11.62

    0.44

             

    5

             
    ZK4403   70801

    3

    0.08

    0.08

     

    4

    0.08

    0.08

    0.01

             

    23.3

             
    ZK4403

    V10-1

    70830

    131

    0.76

     

    0.62

    129

    0.77

    23.19

    0.66

             

    0

             
    ZK4403

    V10-1

    70834

    41

    1.11

    2.46

    0.09

    47

    1.05

    2.35

    0.09

    ZK4403

    V2

    70845

    99

    0.48

    0.58

    0.19

    96

    0.46

    0.55

    0.18

    ZK44103

    V10-1

    70861

    45

    0.44

    2.04

    0.04

    47

    0.42

    1.94

    0.04

    ZK44103   70908

    3

    0.06

    0.70

    0.01

    3

    0.06

    0.66

    0.01

    ZK4403

    V2-2

    70916

    44

    1.12

    1.17

    0.09

    44

    1.08

    1.13

    0.06

    ZK4403   70925

    16

    0.11

    1.11

    0.10

    18

    0.11

    1.05

    0.09

    ZK801

    V6

    71001

    139

    0.16

    1.63

    0.05

    140

    0.15

    1.60

    0.04

    ZK4004

    V13

    71023

    319

    0.13

    0.09

    0.06

    339

    0.13

    0.09

    0.02

    ZK4004   71037

    23

    0.18

    1.02

    0.07

    23

    0.19

    1.01

    0.06

    ZK4402

    V7-1

    71050

    44

    0.93

    1.84

    0.19

    41

    0.86

    1.77

    0.18

             

    18.0

             
    ZK10501

    V10-1

    71085

    72

    0.13

     

    0.22

    71

    0.12

    18.35

    0.23

             

    5

             
    ZK4402

    V2-1

    71103

    15

    0.53

    2.24

    0.06

    18

    0.49

    2.12

    0.03

    ZK4402   71116

    10

    0.10

    1.20

    0.15

    9

    0.09

    1.13

    0.14

    ZK4402   71128

    1

    0.01

    0.05

     

    1

    0.01

    0.05

    0.02

    ZK4004

    V10-1

    71170

    16

    0.01

    2.72

    0.10

    17

    0.01

    2.77

    0.10

             

    11.9

             
    ZK4004

    V10-1

    71172

    51

    0.06

     

    0.82

    53

    0.06

    11.82

    0.86

             

    0

             
    ZK4004   71192

    11

    0.09

    0.64

    0.06

    12

    0.08

    0.63

    0.06

    ZK4004

    V10

    71203

    33

    0.71

    1.39

    0.04

    35

    0.68

    1.35

    0.04

    ZK3206

    V8-0

    71213

    742

    0.14

    0.22

    0.03

    730

    0.13

    0.21

    0.01

    ZK2805

    V15-1

    71231

    301

    1.76

    1.84

    0.09

    266

    1.69

    1.74

    0.08

    ZK2805

    V15

    71235

    178

    0.55

    0.64

    0.05

    166

    0.56

    0.64

    0.05

    ZK2805

    V14

    71246

    91

    1.39

    2.79

    0.27

    85

    1.32

    2.53

    0.26

    ZK10901

    V5-1

    71288

    5

    0.01

    2.21

    0.05

    7

    0.01

    2.03

    0.04

    ZK2805

    V13

    71304

    77

    1.19

    3.52

    0.28

    76

    1.14

    3.34

    0.28

    ZK2805

    V13

    71306

    489

    1.60

    5.20

    0.08

    443

    1.51

    5.00

    0.08

    ZK2805   71310

    4

    0.01

    0.18

    0.04

    4

    0.01

    0.17

    0.04

    ZK2805

    V9-1

    71312

    122

    0.07

    7.92

    0.11

    114

    0.07

    7.18

    0.10

    ZK3206

    V13

    71317

    52

    0.15

    1.26

    0.04

    52

    0.16

    1.20

    0.04

    ZK3206   71319

    55

    0.11

    0.14

    0.03

    54

    0.12

    0.13

    0.03

    ZK4004

    V7-1

    71322

    26

    0.76

    1.95

    0.08

    28

    0.74

    1.90

    0.08

    ZK4004

    V7-1

    71324

    114

    1.76

    7.50

    0.23

    115

    1.77

    7.80

    0.23

    ZK4004

    V7-1

    71342

    18

    1.25

    1.07

    0.07

    18

    1.22

    1.01

    0.04

    ZK4004

    V7-0

    71352

    18

    0.26

    4.32

    0.12

    19

    0.25

    4.10

    0.11

    ZK3206   71374

    24

    0.19

    1.03

    0.08

    28

    0.19

    1.01

    0.07


    NI 43-101 Report GC Ag-Zn-Pb Project 106 | P a g e
    22 June 2008


    Silvercorp Metals Inc
    NI 43-101 Technical Report Update on the GC Ag-Zn-Pb Project in
    Guangdong Province, People’s Republic of China

    ZK2805

    V9

    71388

    133

    3.79

    2.36

    0.06

    132

    3.82

    2.45

    0.08

    ZK4004   71395

    14

    0.67

    1.51

    0.09

    15

    0.66

    1.52

    0.10

    ZK3206

    V9-0

    71399

    40

    0.05

    5.05

    1.62

    41

    0.05

    5.06

    1.60

    ZK3206

    V9

    71403

    120

    1.34

    3.97

    0.07

    128

    1.35

    4.21

    0.08

    ZK3206   71427

    24

    0.10

    0.56

    0.07

    25

    0.10

    0.56

    0.07

    ZK4805   71443

    5

    0.02

    0.13

    0.05

    6

    0.02

    0.13

    0.01

    ZK3206

    V7-1

    71456

    48

    0.10

    1.67

    0.12

    48

    0.09

    1.67

    0.13

    ZK2805   71462

    1

    0.01

    0.09

    0.01

    1

    0.01

    0.10

    0.01

    ZK4004   71480

    1

    0.01

    1.41

    0.12

    2

    0.01

    1.47

    0.11

    ZK4004   71482

    8

    0.63

    1.51

    0.39

    9

    0.60

    1.50

    0.42

    ZK2805

    V2

    71491

    143

    3.29

    2.67

    0.18

    137

    3.35

    2.75

    0.19

    ZK3206   71501

    11

    0.04

    0.19

    0.07

    11

    0.04

    0.21

    0.07

    ZK4404   71529

    24

    0.03

    0.24

    0.01

    23

    0.03

    0.23

    0.01

             

    15.3

             
    ZK4404

    V9

    71556

    285

    0.07

     

    0.18

    285

    0.07

    15.02

    0.19

             

    5

             
    ZK4404

    V5-1

    71584

    25

    0.07

    1.52

    0.10

    27

    0.07

    1.60

    0.09

    ZK4002   70270

    5

    0.02

    0.71

    0.06

    5

    0.02

    0.72

    0.06

    ZK3206

    V2

    71594

    240

    0.92

    2.15

    0.11

    220

    0.93

    2.03

    0.13

    ZK4404

    V5

    71604

    832

    3.60

    4.46

    0.34

    783

    3.40

    4.20

    0.37

    ZK3206   71632

    2

    0.06

    0.17

    0.01

    3

    0.06

    0.17

    0.04

    ZK4805   71639

    4

    0.03

    0.30

    0.04

    4

    0.03

    0.31

    0.04

    ZK4805

    V7

    71654

    47

    0.70

    1.41

    0.12

    52

    0.66

    1.46

    0.12

    ZK4805   71665

    1

    0.01

    0.01

     

    1

    0.01

    0.01

    <0.01

    ZK2804   71675

    1

    0.01

    0.10

     

    1

    0.01

    0.11

    0.06

    ZK2404   71687

    4

    0.02

    1.10

    0.12

    6

    0.02

    1.12

    0.11

    ZK4002   70274

    2

    0.01

    0.40

    0.03

    3

    0.01

    0.41

    0.03

    ZK2804

    V5

    71726

    126

    0.39

    7.41

    0.26

    122

    0.40

    7.30

    0.27

    ZK2806

    V8-1

    71743

    95

    0.07

    0.18

    0.01

    100

    0.07

    0.18

    <0.01

    ZK2804   71747

    19

    0.93

    0.88

    0.03

    19

    0.95

    0.89

    0.03

    ZK2804

    V2-1

    71765

    66

    1.50

    3.13

    0.21

    61

    1.38

    3.17

    0.22

    ZK2804

    V2

    71772

    76

    1.07

    4.10

    0.51

    67

    1.00

    4.15

    0.53

    ZK2404   71782

    1

    0.01

    0.01

     

    1

    0.01

    0.01

    <0.01

    ZK2404

    V7-1

    71794

    186

    4.25

    2.66

    0.38

    177

    4.11

    2.75

    0.41

    ZK2404

    V2

    71819

    321

    6.75

    7.82

    1.12

    281

    6.97

    7.79

    1.26

    ZK2404

    V2

    71821

    129

    0.28

    1.01

    0.25

    118

    0.29

    1.01

    0.22

    ZK2404

    V2

    71823

    183

    0.86

    8.37

    0.50

    165

    0.89

    8.43

    0.53

    ZK2404

    V2

    71825

    321

    0.81

    4.14

    0.75

    323

    0.74

    3.90

    0.80

    ZK2404

    V2-1

    71828

    103

    0.57

    0.22

    0.13

    93

    0.53

    0.22

    0.14

    ZK2404   71841

    4

    0.01

    0.13

    0.04

    4

    0.01

    0.13

    0.04

    ZK4002   70296

    2

    0.01

    1.25

    0.07

    3

    0.01

    1.32

    0.02

    ZK2806

    V15

    71872

    67

    1.15

    4.42

    0.13

    57

    1.16

    4.24

    0.14

    ZK2806

    V14

    71878

    149

    10.45

    1.97

    0.16

    131

    10.39

    1.98

    0.17

    ZK2404

    V2-2

    71900

    20

    0.90

    0.98

    0.03

    19

    0.87

    1.03

    0.03

    ZK2404

    V2-2

    71902

    14

    0.29

    0.86

    0.11

    14

    0.30

    0.88

    0.10

    ZK3207   71910

    10

    0.06

    0.30

    0.02

    10

    0.06

    0.31

    0.02

    ZK3207

    V8-0

    71912

    265

    0.09

    0.30

    0.01

    244

    0.09

    0.31

    0.01

    ZK2806

    V9-1

    71942

    131

    2.82

    3.10

    0.15

    118

    2.72

    3.18

    0.16


    NI 43-101 Report GC Ag-Zn-Pb Project 107 | P a g e
    22 June 2008


    Silvercorp Metals Inc
    NI 43-101 Technical Report Update on the GC Ag-Zn-Pb Project in
    Guangdong Province, People’s Republic of China

    ZK2805   71959

    21

    0.06

    0.05

    0.03

    21

    0.06

    0.06

    0.03

    ZK2805

    V2-1

    71973

    197

    0.25

    0.41

    0.39

    182

    0.26

    0.42

    0.42

    ZK2805

    V2-1

    71975

    266

    0.30

    0.20

    0.05

    257

    0.29

    0.22

    0.05

    ZK2404

    V6

    71995

    35

    0.26

    1.16

    0.10

    30

    0.27

    1.20

    0.10

    ZK2404

    V6

    71997

    16

    0.34

    0.37

    0.11

    13

    0.32

    0.39

    0.11

    ZK2806   72014

    1

    0.02

    0.07

    0.03

    1

    0.02

    0.08

    0.01

    ZK3207   71911

    12

    0.07

    0.63

    0.03

    12

    0.08

    0.68

    0.03

    ZK2806   71922

    8

    0.05

    1.07

    0.15

    9

    0.05

    1.13

    0.14

    ZK2404

    V6-0

    71986

    461

    4.48

    3.42

    0.23

    486

    4.62

    3.56

    0.26

    ZK2404

    V6

    71998

    30

    1.55

    1.16

    0.15

    34

    1.66

    1.19

    0.16

    ZK4001

    V2-2

    70055

    4

    0.32

    0.79

    0.04

    4

    0.33

    0.81

    0.04

    ZK4002

    V10-1

    70137

    275

    7.40

    7.26

    0.13

    274

    7.62

    7.19

    0.14

    ZK4002

    V2-0

    70261

    66

    1.24

    3.77

    0.25

    70

    1.25

    3.62

    0.26

    ZK4003

    V2

    70486

    45

    0.19

    5.99

    0.31

    47

    0.20

    5.94

    0.33

    ZK3607

    V7-1

    70551

    190

    0.95

    4.54

    0.36

    181

    0.90

    4.35

    0.35

    ZK3606

    V2-1

    70651

    780

    0.65

    1.90

    1.49

    791

    0.59

    1.88

    1.63

    ZK10501

    V10-1

    71086

    32

    0.06

    2.51

    0.16

    38

    0.06

    2.43

    0.17

    BT08-1   BT08-1-
    H2(1)

    25

    0.03

    0.02

     

    28

    0.04

    0.02

     <0.01

    BT08-6   BT08-6-
    H1

    98

    0.05

    0.03

     

    102

    0.06

    0.03

     <0.01


    NI 43-101 Report GC Ag-Zn-Pb Project 108 | P a g e
    22 June 2008


     

    NI 43-101 Report GC Ag-Zn-Pb Project 109 | P a g e
    22 June 2008


    Silvercorp Metals Inc
    NI 43-101 Technical Report Update on the GC Ag-Zn-Pb Project in
    Guangdong Province, People’s Republic of China

     

     

    Appendix IV

    Silvercorp Check Assays

     

     

    NI 43-101 Report GC Ag-Zn-Pb Project 110 | P a g e
    22 June 2008


    Silvercorp Metals Inc
    NI 43-101 Technical Report Update on the GC Ag-Zn-Pb Project in
    Guangdong Province, People’s Republic of China

    In order to test the accuracy, precision, and lab contamination, Silvercorp purchased two types of standards GBW07173 and GBW07163 (GSO-2). For core samples from four holes that were first drilled in 2008, the standards were inserted for every 20 samples, and then were inserted for every 40 samples for the rest of drill core samples. A total of 20 standards were inserted for assaying and the summarized assay results are listed in Table IV.1. Overall the standard sample results were assayed were within the variation ranges; one standard sample was above the allowed range for Zn and another sample was above the allowed range for Ag.

    Table IV.1 Summary of Assay Results of Silvercorp’s Standards

    Standard Metals Value of Standard Assay Value
    Average
    Value
     Range Average
    Value
    Range SD
    (σ)
    GBW07173 Ag (g/t 92 92 ± 11 97.5 94-100 1.9
    Pb (% 2.14 1.97-2.17 2.09 2.04-2.16 0.04
    Zn (% 6.06 6.06 ± 0.29 6.24 5.99-6.48 0.15
    GBW07163(GSO-2) Ag (g/t 220 220 ± 10 231.5 226-236 3.31
    Pb (% 2.17 2.17 ± 0.07 2.13 2.09-2.20 0.04
    Zn (% 4.26 4.26 ± 0.15 4.36 4.19-4.45 0.09

    Silvercorp also utilized 1/4 core samples to compare assay results with 1/2 core samples on the same interval of a drill hole. Thirty quarter-core samples were collected and assayed. Eighteen of 30 samples containing above 50 g/t Ag equivalent are used to perform analysis and are shown in Table IV.2 and Figures IV.1 to IV.3. The comparison shows that the average difference between half core and quarter core assays at +/-10%, indicate the ALS Chemex assay results are generally reliable. However, 9 Ag, 11 Pb, and 10 Zn assays have over 10% difference between half and quarter samples and usually 1/2 core sample assays are higher than 1/4 core.

    NI 43-101 Report GC Ag-Zn-Pb Project 111 | P a g e
    22 June 2008


    Silvercorp Metals Inc
    NI 43-101 Technical Report Update on the GC Ag-Zn-Pb Project in
    Guangdong Province, People’s Republic of China

    Figure IV.1 Scatter plot of Ag assays of 1/2 core vs. 1/4 core


    Figure IV.2 Scatter plot of Pb assays of 1/2 core vs. 1/4 core


    NI 43-101 Report GC Ag-Zn-Pb Project 112 | P a g e
    22 June 2008


    Silvercorp Metals Inc
    NI 43-101 Technical Report Update on the GC Ag-Zn-Pb Project in
    Guangdong Province, People’s Republic of China

    Figure IV.3 Scatter plot of Zn assays of 1/2 core vs. 1/4 core


    NI 43-101 Report GC Ag-Zn-Pb Project 113 | P a g e
    22 June 2008


     

    NI 43-101 Report GC Ag-Zn-Pb Project 114 | P a g e
    22 June 2008


    Table IV.2 Comparison of Half Core and Quarter Core Sample Assays

      Half Core Quarter Core Difference Difference in %
    Sample Ag
    (g/t)
    Pb(%) Zn
    (%)
    Sn
    (%)
    Ag
    (g/t)
    Pb(%)  Zn (%) Sn
    (%)
    Ag
    (g/t)
    Pb
    (%)
    Zn
    (%)
    Sn
    (%)
     Ag  Pb  Zn  Sn
     
    1 50 0.16 0.21 0.04 49 0.17 0.22 0.04 -1 0.01 0.01 0 -2 6 5 0
    2 780 0.65 1.9 1.49 816 0.62 2.53 1.56 36 -0.03 0.63 0.07 4 -5 25 4
    3 46 0.85 2.79 0.59 47 1.11 3.98 0.48 1 0.26 1.19 -0.11 2 23 30 -23
    4 190 0.95 4.54 0.36 158 0.85 4.39 0.33 -32 -0.1 -0.15 -0.03  -20 -12 -3 -9
    5 86 0.58 0.53 0.15 70 0.42 0.61 0.14 -16 -0.16 0.08 -0.01  -23 -38 13 -7
    6 34 1.41 3.06 0.27 32 1.13 2.76 0.32 -2 -0.28 -0.3 0.05 -6 -25 -11 16
    7 25 0.3 10.75   26 0.46 9.96   1 0.16 -0.79   4 35 -8  
    8 38 0.26 0.73   26 0.25 0.48   -12 -0.01 -0.25   -46 -4 -52  
    9 275 7.4 7.26   195 6.45 7.44   -80 -0.95 0.18   -41 -15 2  
    10 76 1.19 5.71   84 2.23 3.38   8 1.04 -2.33   10 47 -69  
    11 70 0.3 1.24   66 0.3 1.26   -4 0 0.02   -6 0 2  
    12 12 0.24 1.71   10 0.23 1.6   -2 -0.01 -0.11   -20 -4 -7  
    13 66 1.24 3.77   53 1.21 2.9   -13 -0.03 -0.87   -25 -2 -30  
    14 258 0.16 21.8 0.27 406 0.2 20 0.23 148 0.04 -1.8 -0.04 36 20 -9 -
    15 45 0.19 5.99 0.31 40 0.34 6.43 0.35 -5 0.15 0.44 0.04  -13 44 7 11
    16 261 3.59 15.3 1.06 133 1.62 10.95 0.96 -128 -1.97 -4.35 -0.1  -96 -122 -40  
    17 30 1.01 4.03 0.1 28 1.08 4.96 0.14 -2 0.07 0.93 0.04 -7 6 19 29
    18 32 0.06 2.51 0.16 20 0.03 1.46 0.11 -12 -0.03 -1.05 -0.05  -60 -100 -72  
    Average 132 1.14 5.21 0.44 126 1.04 4.74 0.42 -6 -0.10 -0.47 -0.01 -5 -10 -10 -3

    NI 43-101 Report GC Ag-Zn-Pb Project 115 | P a g e
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    NI 43-101 Report GC Ag-Zn-Pb Project 116 | P a g e
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    NI 43-101 Report GC Ag-Zn-Pb Project 117 | P a g e
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    Appendix V

    Bulk Density

     

     

    NI 43-101 Report GC Ag-Zn-Pb Project 118 | P a g e
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    Sample Drill
    Hole
    from to Vein # BD
    (g/cm3)
    Ag
    (g/t)
    Pb
    (%)
    Zn
    (%)
    Comments
    DT01 ZK3603 273.90 273.98 V2-1 3.64 169 12.46 2.22  
    DT02 276.18 276.28 V2-1 2.87 10 0.25 0.19 not used in average SG
    calculation
    DT03 147.34 147.44 V7-0 4.01 62.4 0.19 5.7  
    DT04 149.83 149.89 V7-0 2.89 10 0.13 0.89  
    DT05 ZK3604 190.35 190.42 V7-0 4.40 58.1 0.03 2.24  
    DT06 190.98 191.03 V7-0 3.59 33 0.03 0.29 not used in average SG
    calculation
    DT07 390.71 390.79 V2 3.40 8.6 0.29 1.34  
    DT08 391.53 391.60 V2 3.91 30.1 0.74 3.17  
    DT09 431.71 431.81 V2-2 3.23 12.9 0.7 1.36  
    DT10 ZK44101 37.52 37.58 V10 4.90 221 6.53 0.16  
    DT11 41.42 41.50 V10 5.51 2793 53.04 6.44 not used in average SG
    calculation
    DT12 ZK3602 118.64 118.72 V7-0 4.06 190 9.51 3.22  
    DT13 ZK2002 239.80 239.87 V7-0 4.26 480 17.98 4.6  
    DT14 243.22 243.30 V7-0 3.16 117 0.15 2.15  
    DT15 411.83 411.92 V2-1 3.78 278 9.59 6.78  
    DT16 414.17 414.24 not
    named
    3.12 24.4 0.27 0.86  
    DT17 ZK2001 102.46 102.56 V5 3.55 256 0.5 4.32  
    DT18 390.02 390.10 V2 2.94 8.1 0.11 0.22 not used in average SG
    calculation
    DT19 394.39 394.48 not
    named
    3.42 73.2 2.69 1.49  
    DT20 455.15 455.25 not
    named
    2.71 2.7 0.18 0.36 not used in average SG
    calculation
    DT21 463.44 463.53 V2-2 3.23 0 0.49 0.16 not used in average SG
    calculation
    DT22 470.38 470.47 not
    named
    3.50 73.2 7.45 5.38  
    DT23 ZK1401 257.83 257.90 V2 4.31 1953 0.08 5.52  
    DT24 259.22 259.30 V2 4.13 466 0.09 23.41  
    DT25 266.95 267.03 V2 3.10 480 0.27 15.81  
    DT26 ZK1201 164.15 164.23 V6 3.82 141 0.06 20.88  
    DT27 165.40 165.47   2.75 5.4 0.01 0.82  
    DT28 ZK2802 133.75 133.85 V7 3.05 84.2 0.33 2.5  
    DT29 137.45 137.51 V7 2.85 29.8 1.03 2.48  
    DT30 139.15 139.24 V7 2.86 21.8 0.25 2.15  
    DT31 202.73 202.79 V2-1 4.43 242 0.09 8.34  
    DT32 203.58 203.65 V2-1 3.21 40.6 1.12 2.67  
    DT33 ZK44102 34.14 34.21 not
    named
    3.25 234 4.92 14.24  
    DT34 78.92 79.00 not
    named
    3.75 440 4.24 15.67  
    DT35 ZK2801 207.94 208.01 V2 3.18 13.6 0.08 2.72  
    DT36 203.86 203.94 V2 3.93 21.8 0.07 1.22  
    DT37 ZK3605 87.96 88.05 V2 3.28 40.6 0.03 7.14  
    DT38 ZK20101 313.34 313.43 not
    named
    4.06 292 6.22 12.69  
    DT39 ZK3203 360.78 360.87 V2 4.31 358 1.12 1.32  
    DT40 363.02 363.12 V2 3.64 109 2.22 3.28  

    NI 43-101 Report GC Ag-Zn-Pb Project 119 | P a g e
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    DT41 ZK3604 208.56 208.64 V7 3.16 92.2 3.32 5.27
    DT42 209.65 209.73 V7 3.85 73.2 0.83 3.25
    DT43 211.77 211.85 V7 2.83 35.2 0.24 1.28
    DT44 ZK1801 388.30 388.40 V2 4.47 75.9 0.02 0.118
    DT45 396.59 396.66 not
    named
    4.05 504 0.33 1.77
    DT46 ZK48001 78.82 78.90  not
    named
    3.52 296 0.1 3.69
    DT47 ZK3604 345.86 345.96  not
    named
    3.42 24.4 0.47 4.52
    DT48 351.66 351.76  not
    named
    3.38 21.7 0.22 5.7
    DT49 ZK3203 318.79 318.87 V2-0 3.30 29.9 0.18 2.27
    DT50 ZK2402 269.86 269.93 V2 4.33 170.8 0.03 0.08
    DT51 271.06 271.16 V2 3.15 81.4 1.15 3.75
    DT52 273.77 273.86 V2 4.50 100 0.15 0.42
    DT53 274.91 274.98 V2 4.41 182 2.3 3.17
    DT54 277.83 277.91 V2 3.08 336 0.57 0.18
    DT55 ZK3204 291.63 291.69 V7-0 4.10 73.2 2.3 10.11
    DT56 322.58 322.66 V7 4.37 75.9 0.23 1.2
    DT57 324.01 324.11 V7 3.12 43.4 0.06 1.79
    DT58 520.86 520.95 V2 3.73 125 4.1 4.05
    DT59 524.17 524.25 V2 3.20 57 0.44 0.44
    DT60 576.56 576.64 V2-2 3.17 62.4 0.1 5.27
    DT61 577.28 577.36 V2-2 3.61 130 0.09 0.75
    DT62 641.88 641.96 V6 3.59 252 2.61 2.56
    Average 176.40 1.99 4.47
     
    Grade (Pb+Zn) e10 4-10 d4
    No. of Samples 12 17 27
    % of samples 0.21 0.30 0.48
    SG 3.79 3.73 3.37
    Average based on % of samples in different grade group   3.57  

    NI 43-101 Report GC Ag-Zn-Pb Project 120 | P a g e
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    NI 43-101 Report GC Ag-Zn-Pb Project 121 | P a g e
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    Appendix VI

    Drill Hole Collar and Downhole Survey Data

     

     

     

     

       
    NI 43-101 Report GC Ag-Zn-Pb Project 122 | P a g e
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    Drill
    Hole
    Northing (m)  Easting (m)  Elevation
    (m) 
    From
    (m) 
    To
    (m)
    Azimuth Dip Veins
    Intercepted 
    Year
    Drilled 
    ZK801 2536112.863  37593367.801  95.976  0  25.03  20  65    2008 
          25.03  75.395  20  65.5    2008 
          75.395  125.365  20  65  V6  2008 
          125.365  158.2  20  64.5    2008 
          158.2  166.4  20  65    2008 
    ZK1001 2535841.116  37593327.089  182.976  0  25  20  47    2007 
          25  75  20  49    2007 
          75  125  20  49.5  V5-1  2007 
          125  175  19.5  50  V5  2007 
          175  225  20  49.5  V7-0,V7  2007 
          225  275  22.5  50  V2-1  2007 
          275  325  22.5  47.5  V2,V2-2  2007 
          325  375  22  46.5    2007 
          375  424.66  24  46.5  V6  2007 
          424.66  449.32  23  47    2007 
    ZK1201 2536086.450  37593476.661  129.340  0  25  20  71    2007 
          25  75  20  72    2007 
          75  125  22.5  71.5    2007 
          125  165.41  24  71  V6  2007 
          165.41  180.82  24  71    2007 
    ZK1401 2535830.265  37593446.040  217.772  0  25  12  54    2007 
          25  75  12  55  V5-1  2007 
          75  125  13  55  V5  2007 
          125  175  14  55  V7-1,V7-0  2007 
          175  225  15  55  V7,V2-1  2007 
          225  280.6  15  55  V2  2007 
          280.6  311.2  15  54.5    2007 
    ZK1402 2535829.768  37593445.940  217.722  0  25  9  67    2007 
          25  75  10  69    2007 
          75  125  10  69  V5-1,V5  2007 
          125  175  14  69  V7-1  2007 
          175  225  16  69  V7-0  2007 
          225  275  16  69  V7  2007 
          275  325  16  69  V2-1  2007 
          325  366.3  16.5  69  V2  2007 
          366.3  382.6  16.5  69    2007 
    ZK1601 2535912.436  37593503.552  208.790  0  35  20  75  V7-1  2005 
          35  110  20  73  V7-0,V7  2005 
          110  175  21  72  V2-1  2005 
          175  225  20  73.5  V2  2005 

       
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          225  275  18  73  V2-2  2005 
          275  322.5  15  73    2005 
          322.5  347.86  16  72    2005 
    ZK1602 2535820.005  37593475.958  224.302  0  25  20  75    2005 
          25  75  20  75    2005 
          75  125  21  75  V5-1  2005 
          125  175  22  75  V5  2005 
          175  225  23  75  V7-1  2005 
          225  275  23  75  V7-0  2005 
          275  325  22  74  V7  2005 
          325  375  22  74  V2-1  2005 
          375  419  22  74  V2  2005 
          419  439.65  23  74    2005 
    ZK1801 2535852.089  37593502.615  236.253  0  25  39  71  V5-1  2007 
          25  75  41  72.5  V5  2007 
          75  125  42  72.5  V7-1  2007 
          125  175  42  72.5    2007 
          175  225  42  72  V7-0  2007 
          225  275  42  72  V7  2007 
          275  325  40  72  V2-1  2007 
          325  375  41  72    2007 
          375  408.445  40  71.5  V2  2007 
          408.445  416.89  41.5  72.5    2007 
    ZK2001 2535819.224  37593557.675  252.028  0  25  28  64    2007 
          25  75  31  65  V5-1  2007 
          75  125  31  65  V5  2007 
          125  175  30  66  V7-1  2007 
          175  225  29  66  V7-0  2007 
          225  275  29  66  V7  2007 
          275  325  29  66  V2-1  2007 
          325  375  29  66    2007 
          375  425  29  66  V2  2007 
          425  476.345  28  66  V2-2  2007 
          476.345  502.69  28  66    2007 
    ZK2002 2535819.224  37593557.675  252.028  0  25  28  74    2007 
          25  75  30  74    2007 
          75  125  30  74  V5-1  2007 
          125  175  30  74  V5  2007 
          175  225  30  74  V7-1  2007 
          225  275  29  74  V7-0  2007 
          275  325  29  74  V7  2007 
          325  375  29  74    2007 

       
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          375  425  29  74  V2-1  2007 
          425  475  29  73    2007 
          475  525  29  73  V2  2007 
          525  579.57  28  73    2007 
          579.57  609.14  28  73  V2-2  2007 
    ZK2401 2535830.617  37593707.693  188.687  0  25  11  49    2007 
          25  75  11  50  V7-0  2007 
          75  125  12  50  V7  2007 
          125  175  12  50  V2-1  2007 
          175  225  14  49  V2  2007 
          225  275  14.5  49  V2-2  2007 
          275  325  15  49  V6-0  2007 
          325  368.53  15  48.5  V6  2007 
          368.53  387.06  15  48.5    2007 
    ZK2402 2535829.830  37593707.559  188.682  0  25  11  71  V7-1  2007 
          25  75  12.5  71.5    2007 
          75  125  12.5  70  V7-0  2007 
          125  175  14  70.5    2007 
          175  225  14  70  V7  2007 
          225  275  15  70.5  V2-1  2007 
          275  318.105  15.5  70  V2,V2-2  2007 
          318.105  336.21  16  69.5    2007 
    ZK2404 2535651.302  37593623.553  236.819  0  25.315  20  58    2008 
          25.315  74.77  20  58  V9-1  2008 
          74.77  124.205  20  58    2008 
          124.205  175.215  20  57  V9  2008 
          175.215  226.35  20  57  V5-1,V5  2008 
          226.35  275.76  21  57    2008 
          275.76  324.94  21  57  V7-1  2008 
          324.94  375.255  21  57  V7-0  2008 
          375.255  427.38  20  57  V7  2008 
          427.38  477.76  20  57  V2-1,V2  2008 
          477.76  525.89  20  57  V2-2  2008 
          525.89  574.845  20  57    2008 
          574.845  623.015  20  57  V6-0,V6  2008 
          623.015  646.98  20  57    2008 
    ZK2801 2535810.250  37593782.617  176.433  0  25  20  46    2007 
          25  75  22  46  V7-0  2007 
          75  125  22.5  46  V7  2007 
          125  175  23  45.5  V2-1,V2-0  2007 
          175  225  22.5  44.5  V2  2007 
          225  275  23  44  V2-2  2007 

       
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          275  319.33  23  43  V6  2007 
          319.33  338.66  23  43    2007 
    ZK2802 2535809.350  37593782.250  176.362  0  25  20  70  V7-1  2007 
          25  75  24  70.5    2007 
          75  125  24  71  V7-0  2007 
          125  175  24  71  V7  2007 
          175  225  25  70.5  V2-1  2007 
          225  277.425  24.5  70  V2-0  2007 
          277.425  304.85  25  70  V2  2007 
    ZK2804 2535608.335  37593714.116  184.785  0  25  20  55    2008 
          25  74.35  20.2  55.2  V9-1  2008 
          74.35  125.05  20.4  55.1  V9-0,V9  2008 
          125.05  175.8  20.7  54.8    2008 
          175.8  225  21  54.5  V5-1  2008 
          225  274.6  21.4  54.2  V5,V7-1  2008 
          274.6  324.8  21.9  53.8  V7-0  2008 
          324.8  373.5  22.2  53.5  V7  2008 
          373.5  423.55  22.5  53.1  V2-1  2008 
          423.55  475.3  22.9  52.9  V2-0,V2  2008 
          475.3  524.95  24.6  52.5  V2-2  2008 
          524.95  575.3  25  52.2    2008 
          575.3  614.65  25.5  51.6  V6  2008 
          614.65  628.3  25.7  51.6    2008 
    ZK2805 2535475.408  37593668.493  193.717  0  24.985  20  53    2008 
          24.985  75.365  20  53  V8,V15-1  2008 
          75.365  125.92  20  53   V15-0
    V15,V14
    2008 
          125.92  175.31  20  53  V13  2008 
          175.31  224.935  21  52    2008 
          224.935  275.305  20  53  V9-1  2008 
          275.305  325.305  20  53  V9-0,V9  2008 
          325.305  375.34  20  52    2008 
          375.34  425.275  20  53  V5-1,V5  2008 
          425.275  475.17  20  53  V7-1,V7-0  2008 
          475.17  526.16  20  53  V7  2008 
          526.16  576.75  21  53  V2-1  2008 
          576.75  625.54  20  52  V2-0,V2  2008 
          625.54  658.75  20  54  V2-2  2008 
          658.75  667.74  20  53    2008 
    ZK2806 2535387.161  37593632.457  223.903  0  26.175  20  63    2008 
          26.175  76.4  20  63  V8-1,V8-0  2008 
          76.4  125.725  20  63    2008 

       
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          125.725  176.375  20  64    2008 
          176.375  225.925  20  63  V8  2008 
          225.925  275.375  20  63  V15  2008 
          275.375  326.475  22  63  V14,V13  2008 
          326.475  376.15  21  63    2008 
          376.15  425.025  21  63    2008 
          425.025  475.275  22  63  V9-1  2008 
          475.275  516.225  23  63    2008 
          516.225  531.95  23  63  V9  2008 
    ZK3201 2535839.003  37593900.637  156.351  0  26.5  20  75    2005 
          26.5  78.5  18.48  71  V7  2005 
          78.5  126  20  70  V2-0,V2  2005 
          126  163  21  69  V2-2  2005 
          163  180.44  20  70    2005 
    ZK3202 2535775.141  37593859.553  160.674  0  25  22  75    2005 
          25  75  20  75  V7-0  2005 
          75  125  18  74  V7  2005 
          125  175  20  74.6  V2-1  2005 
          175  225  23  75  V2-0  2005 
          225  275.22  17.5  73  V2,V2-2  2005 
          275.22  323.98  21  76    2005 
    ZK3203 2535666.150  37593802.901  173.424  0  25  31  64    2007 
          25  75  31  63  V5-1  2007 
          75  125  31  63  V5  2007 
          125  175  30  64  V7-1  2007 
          175  225  30  64  V7-0,V7  2007 
          225  275  30  64    2007 
          275  325  30  63  V2-1,V2-0  2007 
          325  375  29  63  V2  2007 
          375  425.75  29  63  V2-2  2007 
          425.75  451.5  29  63    2007 
    ZK3204 2535635.847  37593842.551  191.460  0  25  20  77    2007 
          25  75  21  77.5    2007 
          75  125  21  77.5  V5-1  2007 
          125  175  22  77.5  V5  2007 
          175  225  22  77.5    2007 
          225  275  22  77.5  V7-1  2007 
          275  325  22.5  78  V7-0,V7  2007 
          325  375  23  77.5    2007 
          375  425  24  78    2007 
          425  475  24  77.5  V2-1  2007 
          475  525  24  77  V2-0,V2  2007 

       
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            525  575  24  77    2007 
            575  625  24  77  V2-2  2007 
            625  660.38  24  76.5  V6  2007 
            660.38  670.76  24  76    2007 
    ZK3206  2535389.129  37593742.081  228.242  0  25.065  20  48    2008 
            25.065  75.49  20  48  V8-1,V8-0  2008 
            75.49  126.325  20  48  V8  2008 
            126.325  175.875  20  48    2008 
            175.875  225.45  20  47    2008 
            225.45  275.875  20  48  V13  2008 
            275.875  326.105  20  48.5  V9-1  2008 
            326.105  375.78  20  49  V9-0,V9  2008 
            375.78  425.66  19  48  V5-1  2008 
            425.66  475.86  19  48  V5,V7-1  2008 
            475.86  525.29  19  48  V7-0,V7  2008 
            525.29  575.56  19  49  V2-1  2008 
            575.56  626.4  19  48  V2-0,V2  2008 
            626.4  676.98  19  49  V2-2  2008 
            676.98  717.145  20  49  V6  2008 
            717.145  732.04  19  50    2008 
    ZK3207  2535315.780  37593715.649  219.168  0  25  20  58    2008 
            25  75.12  20  58    2008 
            75.12  125.465  20  58    2008 
            125.465  176.765  20  58  V8-1  2008 
            176.765  226.705  20  58  V8-0  2008 
            226.705  275.8  20  58  V8  2008 
            275.8  326.765  20  58    2008 
            326.765  376.165  20  58    2008 
            376.165  425.52  20  58  V13  2008 
            425.52  476.325  20  58  V9-1  2008 
            476.325  508.585  20  58  V9-0,V9  2008 
            508.585  515.73  20  58    2008 
    ZK3602  2535692.169  37593939.083  182.125  0  25  19  48.5    2007 
            25  75  19  48.5  V7-1  2007 
            75  125  21  47  V7-0  2007 
            125  175  21  46  V7  2007 
            175  225  22  46  V2-1  2007 
            225  275  22  46  V2-0,V2  2007 
            275  325  22  46  V2-2  2007 
            325  363  23  46.5  V6  2007 
            363  376  23  47    2007 
    ZK3603  2535691.601  37593938.881  182.319  0  25  20  67    2007 

       
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          25  75  20  66.5    2007 
          75  125  20.5  66.5  V7-1  2007 
          125  175  21  66.5  V7-0  2007 
          175  225  21  67.5  V7  2007 
          225  275  24  67  V2-1  2007 
          275  325  24  67  V2-0,V2  2007 
          325  375  26  67  V2-2  2007 
          375  425  28  67  V6  2007 
          425  453.8  29  67    2007 
          453.8  457.6  29  67    2007 
    ZK3604 2535691.601  37593938.881  182.319  0  25  20  77    2007 
          25  75  21  77    2007 
          75  125  21  77  V7-1  2007 
          125  175  20  77    2007 
          175  225  24  77  V7-0,V7  2007 
          225  275  22  77    2007 
          275  325  25  76.5    2007 
          325  375  24  76  V2-1,V2-0  2007 
          375  425  24  76  V2  2007 
          425  475  22  77  V2-2,V6  2007 
          475  525.28  21  76.5    2007 
          525.28  550.56  20  77.5    2007 
    ZK3605 2535829.955  37593989.782  110.164  0  25  20  45    2007 
          25  75  20  45  V2-1,V2-0  2007 
          75  125  20.5  45  V2,V2-2  2007 
          125  174.84  20  45  V6  2007 
          174.84  199.68  20  45.5    2007 
    ZK3606 2535789.480  37593994.019  111.432  0  25  20  74  V7  2008 
          25  77.5  19  74    2008 
          77.5  127.5  21  74  V2-1  2008 
          127.5  175.945  20  74  V2-0,V2  2008 
          175.945  225.945  20.5  74  V2-2  2008 
          225.945  275.715  21  74.5  V6  2008 
          275.715  308.055  20  74.5    2008 
          308.055  314.68  22.5  73.5    2008 
    ZK3607 2535539.594  37593903.229  233.426  0  24.95  20  69    2008 
          24.95  74.95  20  69  V9  2008 
          74.95  125.9  21  69  V10  2008 
          125.9  176.45  24  69  V5-1  2008 
          176.45  225.725  22  69  V5  2008 
          225.725  275.25  22  69    2008 
          275.25  325.225  23  70  V7-1  2008 

       
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          325.225  375.55  24  71    2008 
          375.55  426.25  21  70  V7-0,V7  2008 
          426.25  475.975  21  69    2008 
          475.975  525.475  21  70  V2-1,V2-0  2008 
          525.475  575.35  22  70  V2,V2-2  2008 
          575.35  622.05  23  69.5  V6  2008 
          622.05  644.1  24  70    2008 
    ZK4001 2535785.100  37594098.630  111.421  0  25.58  20  66    2008 
          25.58  76.01  20  66  V2-0,V2  2008 
          76.01  126.21  20  66  V2-2  2008 
          126.21  176.21  20  66    2008 
          176.21  202.81  21  65  V6  2008 
          202.81  204.76  21  65    2008 
    ZK4002 2535543.005  37594010.350  249.187  0  26.15  20  61    2008 
          26.15  76.7  20  61    2008 
          76.7  126.1  20  61  V5-1  2008 
          126.1  176.5  20  61  V10-1,V5  2008 
          176.5  226.5  20  61    2008 
          226.5  276.5  20  61.5  V7-1,V10  2008 
          276.5  325.95  21  62  V7-0,V7  2008 
          325.95  375.3  23  62  V2-1  2008 
          375.3  425.35  21  62  V2-0,V2  2008 
          425.35  476.35  20  62  V2-2  2008 
          476.35  526.8  20  62.5    2008 
          526.8  577.95  21  61  V6  2008 
          577.95  609.05  26  62    2008 
          609.05  613.2  24  60    2008 
    ZK4003 2535543.456  37594010.419  248.962  0  26  20  48    2008 
          26  76.35  20  48  V5-1  2008 
          76.35  125  20  48    2008 
          125  176.05  20  48  V10-1,V5  2008 
          176.05  227  20  47.5  V7-1  2008 
          227  276.05  20  49   V7- 
    0,V10,V7 
    2008 
          276.05  326.25  20  49.5  V2-1  2008 
          326.25  376.4  20  50  V2-0,V2  2008 
          376.4  425.75  22  49  V2-2  2008 
          425.75  469  23  49    2008 
          469  487.7  23  49  V6  2008 
    ZK4004 2535426.799  37593968.447  288.143  0  24.96  20  61    2008 
          24.96  74.96  20  60.5  V13,V9-1  2008 
          74.96  125  20  61    2008 

       
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          125  175.75  20  61    2008 
          175.75  226.49  19  61  V9  2008 
          226.49  275.935  20  60  V10-1  2008 
          275.935  325.78  19  60  V5-1  2008 
          325.78  375.585  20.5  60  V5  2008 
          375.585  425.07  20  60  V10,V7-1  2008 
          425.07  475.96  19  60  V7-0,V7  2008 
          475.96  526.365  19  60    2008 
          526.365  572.47  20  60  V2-1,V2-0  2008 
          572.47  593.99  19  60  V2  2008 
    ZK4401 2535560.330  37594120.594  271.375  0  25  20  68    2007 
          25  75  21  68  V5  2007 
          75  125  22  68    2007 
          125  175  22  68  V7-1  2007 
          175  225  22  67.5  V7-0  2007 
          225  275  22  67.5  V10-1  2007 
          275  325  22  67.5  V7  2007 
          325  375  22  67.5  V2-1,V2-0  2007 
          375  425  22  67.5  V2  2007 
          425  475  23  66  V2-2,V6-0  2007 
          475  524.65  24  66    2007 
          524.65  549.3  25  66  V6  2007 
    ZK4402 2535444.613  37594080.036  310.488  0  26  20  67    2008 
          26  76  21  67    2008 
          76  125.5  20  67    2008 
          125.5  176.15  21  67.5  V9  2008 
          176.15  225.705  20  67.5    2008 
          225.705  275.91  20  69  V5-1  2008 
          275.91  327.11  20  68  V5  2008 
          327.11  376.315  20  67  V10-1,V7-1  2008 
          376.315  425.09  21  68  V7-0  2008 
          425.09  475.645  21  68  V7  2008 
          475.645  525.44  20  69    2008 
          525.44  575.1  22.5  69   V2-1,V2- 
    0, V2 
    2008 
          575.1  607.885  22  68  V2-1  2008 
          607.885  615.22  22  67    2008 
    ZK4403 2535637.089  37594152.007  224.505  0  25.225  20  55    2008 
          25.225  75.525  20  55  V7-0  2008 
          75.525  125.5  19.5  55  V7,V2-1  2008 
          125.5  175.325  18  55  V10-1  2008 
          175.325  225.275  21  55  V2-0,V2  2008 

       
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          225.275  275.625  20  55  V2-2  2008 
          275.625  325.525  22  55  V6-0,V6  2008 
          325.525  355.4  22  55    2008 
          355.4  360.7  20  55    2008 
    ZK4404 2535339.280  37594043.462  313.142  0  25  20  67    2008 
          25  75  19.8  66.8    2008 
          75  125  20.4  66.6  V13  2008 
          125  175  22  66.3    2008 
          175  225  23.4  65.9  V9-1  2008 
          225  275  24.6  65.3    2008 
          275  325  24.8  65.1  V9  2008 
          325  375  24.9  64.9    2008 
          375  425  24.9  64.9  V5-1,V10-1  2008 
          425  475  25.1  64.9    2008 
          475  505.7  25.2  64.8  V5  2008 
          505.7  511.4  25.2  64.8    2008 
    ZK44101 2535819.366  37594207.212  111.727  0  25  303  48  V2-2  2007 
          25  64.25  305  48  V10,V11  2007 
          64.25  78.5  305  48    2007 
    ZK44102 2535818.668  37594208.610  111.707  0  25  303  88    2007 
          25  64.5  305  89    2007 
          64.5  79  305  89    2007 
    ZK44103 2535767.966  37594304.124  119.377  0  25  303  65    2008 
          25  74.27  303  65  V2-2  2008 
          74.27  124.03  302  65.5  V10-1  2008 
          124.03  178.76  302  65    2008 
          178.76  225.56  302  65  V10,V11  2008 
          225.56  243.12  302  66    2008 
    ZK44201 2535819.784  37594207.114  111.721  0  25  0  50  V2-2  2007 
          25  75.1  1  51  V10,V11  2007 
          75.1  100.2  1  52  V6  2007 
    ZK4803 2535788.769  37594323.387  113.761  0  25  200  45    2007 
          25  75  203  45  V2-2  2007 
          75  116.28  204  45    2007 
          116.28  132.56  205  45    2007 
    ZK4804 2535622.206  37594252.997  225.276  0  24.875  20  72    2008 
          24.875  74.45  20  72  V7-0  2008 
          74.45  125.775  20  72  V7  2008 
          125.775  177.075  20  72  V2-1  2008 
          177.075  226.25  20  73  V2-0,V2  2008 
          226.25  276.16  23  73.5    2008 
          276.16  326.045  23  73  V2-2  2008 

       
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          326.045  366.995  20  72    2008 
          366.995  383.47  21  73    2008 
    ZK4805 2535469.317  37594185.523  319.569  0  24.95  20  64    2008 
          24.95  75.3  20  64    2008 
          75.3  125.775  20  64  V5-1  2008 
          125.775  176.55  20  64  V5  2008 
          176.55  226.25  20  64  V7-1  2008 
          226.25  275.525  21  64    2008 
          275.525  326.75  20  64  V7-0  2008 
          326.75  376.45  21  64  V7  2008 
          376.45  425.425  21  64  V2-1,V2-0  2008 
          425.425  460.55  22  64  V2  2008 
          460.55  470.45  21  64    2008 
    ZK48001 2535791.838  37594321.665  114.051  0  25  303  68    2007 
          25  75  305  68    2007 
          75  125  305  69  V10-1  2007 
          125  175  305  70    2007 
          175  216.335  305  69  V10  2007 
          216.335  232.67  305  69  V11  2007 
    ZK48002 2535791.545  37594322.084  114.027  0  25  303  82    2007 
          25  75  302  82    2007 
          75  125  301  82    2007 
          125  175  300  81  V10-1  2007 
          175  225  300  81    2007 
          225  277.65  300  81  V10  2007 
          277.65  305.3  300  81  V11  2007 
    ZK48101 2535791.838  37594321.665  114.051  0  25  351  45    2007 
          25  75  351  45  V6  2007 
          75  125  351  45    2007 
          125  175  351  45  V10,V11  2007 
          175  225.325  351  45    2007 
          225.325  250.65  351  45    2007 
    ZK48301 2535789.333  37594321.232  113.789  0  25  263  48    2007 
          25  75  265  48    2007 
          75  125  265.5  47.5    2007 
          125  175  267  46.5  V10-1,V2-2  2007 
          175  225  267.5  46.5    2007 
          225  263.555  268  46.5  V10 V11  2007 
          263.555  277.11  268  46    2007 
    ZK5401 2535668.539  37594419.881  116.328  0  24.575  10  76    2005 
          24.575  79.375  10  78  V2  2005 
          79.375  131.8  10  78  V2-2  2005 

       
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          131.8  181  8  79    2005 
          181  208.2  8  79    2005 
    ZK60101 2535524.506  37594549.365  133.883  0  25  10  45    2007 
          25  75  12.5  45    2007 
          75  125  12.5  44.5  V7  2007 
          125  175  13  45    2007 
          175  225  14  44.5  V2,V2-2  2007 
          225  275  15  43  V6  2007 
          275  325  15  43    2007 
          325  367.48  15  43    2007 
          367.48  384.96  15  43    2007 
    ZK10501 2535637.724  37594150.450  224.735  0  26.35  303  61    2008 
          26.35  76.45  303  61    2008 
          76.45  125.6  302  61  V10-1  2008 
          125.6  159.5  303  61    2008 
          159.5  168  304  61    2008 
    ZK10502 2535637.164  37594150.839  224.939  0  26.4  303  84    2008 
          26.4  76.87  304  84    2008 
          76.87  126.395  301  84    2008 
          126.395  176.935  304  84.5    2008 
          176.935  209.47  304.5  84  V10-1  2008 
          209.47  216.92  305.5  84    2008 
    ZK10901 2535467.805  37594186.042  319.456  0  26.45  303  66    2008 
          26.45  76.8  303  66    2008 
          76.8  125.725  302  66    2008 
          125.725  176.225  303  66    2008 
          176.225  225.575  301  65    2008 
          225.575  275.375  302  66    2008 
          275.375  327  301  66  V5-1  2008 
          327  359.225  302  66  V10-1  2008 
          359.225  365.75  301  66    2008 
    ZK30301 2536850.458  37593315.514  92.094  0  25  20  50    2007 
          25  75  20  50    2007 
          75  125  20  50    2007 
          125  175  20  50    2007 
          175  225  20  50  V3  2007 
          225  260.87  21  50    2007 
          260.87  271.74  21  50    2007 
    ZK40101 2536599.633  37593279.643  119.362  0  25  200  45    2007 
          25  75  200  45    2007 
          75  125  200  45    2007 
          125  173.405  200  45  V4  2007 

       
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            173.405  196.81  202  45    2007 
    ZK40601 2536529.669  37593463.288  140.490  0  25  200  52    2007 
          25  75  201  52    2007 
          75  125  201  52    2007 
          125  175  201  52  V4  2007 
          175  206.07  202.5  52    2007 
          206.07  212.14  202.5  52    2007 
    ZK40602 2536319.277  37593394.758  97.567  0  25  20  66    2007 
          25  75  20  66    2007 
          75  125  20  66    2007 
          125  175  20  66    2007 
          175  225  20  66  V4  2007 
          225  275  20  67    2007 
          275  327.085  20  67    2007 
          327.085  354.17  19  66.5    2007 
    ZK41101 2536719.265  37593067.771  94.729  0  25  200  45    2007 
          25  75  200  45    2007 
          75  125  200  45    2007 
          125  175  200  45    2007 
          175  221.6  200  45  V4  2007 
          221.6  243.2  200  45    2007 
    ZK41801 2536468.610  37593733.967  113.043  0  25  200  45    2007 
          25  75  198  45    2007 
          75  125  198  45.5  V4  2007 
          125  175  199  45    2007 
          175  211.5  199.5  45    2007 
          211.5  223  200  45    2007 
    ZK42101 2536807.795  37592809.806  91.572  0  25.12  200  45    2007 
          25.12  75.36  198  45    2007 
          75.36  126.085  199  45    2007 
          126.085  176.865  200  45  V4  2007 
          176.865  217.625  200  46    2007 
          217.625  233.21  200  47    2007 

       
    NI 43-101 Report GC Ag-Zn-Pb Project 135 | P a g e
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    Appendix VII

    Drill Core Recovery

     

     

     

     

         
    NI 43-101 Report GC Ag-Zn-Pb Project 136 | P a g e
    22 June 2008


                     
    Drill     Drill Core Core Vein    
    Hole Length (m) Vein # Interval Interval Recovery Depth Azimuth Dip
          (m) (m) (%) (m)    
                     
    ZK801 166.4 V6 1.6 1.56 97.5 122.67 20° 65°
    ZK1001 449.32 V7-0 0.57 0.55 96.48 183.37 20° 49.5°
        V2-2 0.45 0.43 96.15 309.85 22.5° 47.5°
        V6 1 0.95 94.6 411.35 24° 46.5°
    ZK1201 180.82 V6 4.33 4.17 96.3 160.07 24° 71°
    ZK1401 311.2 V7-1 1.64 1.6 97.56 126.86 14° 55°
        V7-0 0.8 0.77 96.67 154.5 14° 55°
        V2-1 1.1 1.02 92.9 218.24 15° 55°
        V2 11.53 11.14 96.63 255.97 15° 55°
    ZK1402 382.6 V5-1 0.79 0.77 97.81 81.26 10° 69°
        V7-1 1.01 1.01 100 158.24 14° 69°
        V7 1.58 1.45 92.06 262.32 16° 69°
        V2-1 2.72 2.72 100 307.03 16° 69°
        V2 1.23 1.23 100 339.77 16.5° 69°
    ZK1801 416.89 V7-0 0.77 0.76 98.68 182.71 42° 72°
        V2 1.46 1.45 99.56 387.32 40° 71.5°
    ZK2001 502.69 V5 1.2 1.2 99.64 102.26 31° 65°
        V7 2.2 2.19 99.67 242.04 29° 66°
          0.4 0.39 99.59 285.27 29° 66°
        V2 1.02 1 98.04 389.08 29° 66°
          0.9 0.89 99.26 446.1 28° 66°
          0.72 0.72 99.5 454.73 28° 66°
          0.3 0.3 98.48 457.91 28° 66°
        V2-2 2.4 2.37 98.81 462.23 28° 66°
    ZK2002 609.14 V7-1 1.26 1.25 99.34 199.44 30° 74°
          4.44 4.41 99.34 213.7 30° 74°
        V7-0 4.1 4.07 99.34 239.4 29° 74°
          1.15 1.15 100 291.07 29° 74°
          1.77 1.77 100 299.23 29° 74°
        V7 1.26 1.24 98.68 318.62 29° 74°
          0.56 0.56 100 404.73 29° 74°
        V2-1 1.77 1.77 99.79 411.03 29° 74°
    ZK2401 387.06 V7 0.54 0.54 100 120.4 12° 50°
        V2 2.25 2.23 99.04 214.91 14° 49°

       
    NI 43-101 Report GC Ag-Zn-Pb Project 137 | P a g e
    22 June 2008


                     
        V2 2 2 100 220.16 14° 49°
        V6-0 0.34 0.34 99.67 311.21 15° 49°
        V6 0.5 0.5 99 343.06 15° 48.5°
    ZK2402 336.21 V2-1 2.3 2.25 97.97 224.61 14° 70°
        V2 14.15 14.03 99.15 268.36 15° 70.5°
        V2-2 2.1 2.04 97.33 296.21 15.5° 70°
    ZK2404 646.98 V9 2.1 1.97 93.67 128.75 20° 57°
        V7-1 0.5 0.49 98.5 281.7 21° 57°
        V7 0.44 0.42 95.81 377.63 20° 57°
        V2 12.87 12.86 99.9 453.48 20° 57°
          1.27 1.23 96.67 483.01 20° 57°
        V2-2 6.82 6.77 99.27 487.22 20° 57°
          2.28 2.28 100 549.82 20° 57°
        V6-0 2.29 2.29 100 574.91 20° 57°
        V6 5.5 5.5 100 590.82 20° 57°
    ZK2801 338.66   0.57 0.57 100 71 22° 46°
        V7 0.9 0.9 100 89.2 22.5° 46°
        V2-1 0.18 0.18 98.67 138.82 23° 45.5°
        V2 4.75 4.73 99.54 204.54 22.5° 44.5°
        V2-2 2 1.98 98.88 228.68 23° 44°
        V6 0.16 0.16 98.33 324.5 23° 43°
    ZK2802 305.85   1.1 1.09 99.9 125.6 24° 71°
        V7 9.13 9.06 99.21 132.62 24° 71°
          1.2 1.2 100 152 24° 71°
        V2-1 1.4 1.39 99.1 202.45 25° 70.5°
        V2 1 0.98 97.67 278.95 25° 70°
    ZK2804 628.3 V9 0.38 0.38 100 122.45 20.4° 55.1°
          0.93 0.93 100 163.8 20.7° 54.8°
          0.94 0.94 99.83 184.58 21° 54.5°
        V5-1 1.43 1.43 100 207.2 21° 54.5°
        V5 0.6 0.6 100 235.4 21.4° 54.2°
        V7-1 0.62 0.62 100 272.2 21.5° 54.3°
        V7-0 1.59 1.59 100 305.22 21.9° 53.8°
        V7 1.24 1.24 100 337.06 22.2° 53.5°
        V2-1 0.3 0.3 100 403 22.5° 53.1°
        V2-0 0.55 0.54 99.35 445.5 22.9° 52.9°
        V2 2.15 2.14 99.56 447.85 22.10° 52.10°
        V2-2 0.87 0.84 96.55 504.08 24.6° 52.5°
        V6 0.53 0.53 100 577.64 25° 52.5°

       
    NI 43-101 Report GC Ag-Zn-Pb Project 138 | P a g e
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    ZK2805 667.74 V8 3.03 0.83 27.53 42.54 20° 53°
        V15-1 0.76 0.76 100 74.21 20° 53°
        V15-0 1.42 1.42 100 90.45 20° 53°
        V15 0.44 0.44 100 100.96 20° 53°
        V14 0.54 0.54 100 118 20° 53°
        V13 1.32 1.29 97.97 138.7 20° 53°
        V9-1 3.4 3.38 99.29 232.53 20° 53°
        V9 1.63 1.6 98.04 296.77 20° 53°
        V5-1 0.73 0.73 100 383.8 20° 53°
        V5 1.5 1.5 100 412.46 20° 53°
        V7-1 1.75 1.74 99.26 456.8 20° 53°
        V7-0 1.34 1.34 100 473.46 20° 53°
        V7 0.8 0.8 100 497.34 20° 53°
        V2-1 3.28 3.28 100 572.46 21° 53°
        V2-0 0.21 0.2 97.33 589.41 20° 52°
        V2 3.07 3.02 98.5 593.32 20° 53°
        V-2 0.51 0.51 100 639.11 20° 54°
    ZK2806 531.95 V8-1 1 0.96 96.4 42.65 20° 63°
        V8-0 1.4 1.4 100 49.6 20° 63°
        V8 0.84 0.84 100 213.5 20° 63°
        V15 1.27 1.27 99.67 271.8 20° 63°
        V14 0.44 0.44 100 282.65 22° 63°
        V13 1.94 1.94 100 320 22° 63°
        V9-1 0.88 0.88 100 455.2 23° 63°
    ZK3203 451.5 V5-1 0.47 0.47 100 35.9 31° 63°
        V5 0.69 0.69 100 87.57 31° 63°
        V7-0 1.3 1.3 100 174.8 30° 64°
        V7 1.87 1.86 99.33 215.48 30° 64°
        V2-1 0.98 0.98 100 297.22 30° 63°
        V2-0 0.77 0.77 100 318.62 30° 63°
        V2 6.43 6.43 100 359.37 29° 63°
        V2-2 0.75 0.75 100 396.9 29° 63°
    ZK3204 670.76 V5-1 0.3 0.3 99.78 100.65 21° 77.5°
        V5 0.6 0.6 100 180 22° 77.5°
        V7-1 0.4 0.4 100 255.3 22° 77.5°
        V7-0 0.55 0.55 100 291.5 22.5° 78°
        V7 1.99 1.98 99.56 321.97 22.5° 78°
        V2-0 1 0.98 98.02 487 24° 77°
        V2 7.54 7.48 99.25 518.06 24° 77°

       
    NI 43-101 Report GC Ag-Zn-Pb Project 139 | P a g e
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        V2-2 1.8 1.8 100 576.2 24° 77°
        V6 0.55 0.53 96.97 641.56 24° 76.5°
    ZK3206 732.04 V8-1 0.65 0.65 100 25.41 20° 48°
        V8-0 0.97 0.92 95.26 35.84 20° 48°
        V13 3.87 3.87 100 249.73 20° 48°
        V9-1 1.12 1.09 97.68 281.14 20° 48.5°
        V9 1.9 1.84 96.67 331.15 20° 49°
        V5-1 0.56 0.54 96.77 397.12 19° 48°
        V5 1.25 1.23 98.3 430.38 19° 48°
        V7-1 1.35 1.33 98.65 470.39 19° 48°
        V7-0 2 1.98 99.1 486.27 19° 48°
        V7 1.15 1.14 99.3 491.53 19° 48°
        V2-1 2.35 2.26 96.04 553.86 19° 49°
        V2-0 0.5 0.5 100 581.6 19° 48°
        V2 4.77 4.53 94.91 617.91 19° 48°
        V2-2 1.46 1.43 98.15 634.24 19° 49°
        V6 0.62 0.61 98.55 700.63 20° 49°
    ZK3207 515.73 V8-1 1.3 1.27 97.41 171.14 20° 58°
        V8-0 0.36 0.36 100 176.48 20° 58°
        V8 1.35 1.34 99.63 231.4 20° 58°
        V13 0.3 0.3 100 410.55 20° 58°
        V9-1 1.05 1.05 100 456.53 20° 58°
        V9-0 4.78 4.7 98.33 478.06 20° 58°
        V9 3.5 3.49 99.61 486.29 20° 58°
    ZK3602 376 V7-1 2 1.89 94.31 67.9 19° 48.5°
        V7-0 2.17 2.15 99.36 116.55 21° 47°
        V2-1 0.62 0.61 98.33 220.28 22° 46°
        V2-0 0.75 0.75 100 254.95 22° 46°
        V2 0.5 0.5 100 258.4 22° 46°
        V2-2 0.41 0.41 100 299.86 22° 46°
        V6 3.84 3.84 100 330.16 23° 46.5°
    ZK3603 457.6 V7-1 1.28 1.28 100 83.57 20.5° 66.5°
        V7-0 1.83 1.83 100 147.34 21° 66.5°
        V7 0.28 0.28 100 181.38 21° 67.5°
        V2-1 2 2 100 273.28 24° 67°
        V2 0.71 0.71 100 316.3 24° 67°
        V6 1.27 1.27 100 398.67 28° 67°
    ZK3604 550.56 V7-1 0.78 0.78 100 96.92 21° 77°
        V7-0 1.03 1.01 98 190 24° 77°

       
    NI 43-101 Report GC Ag-Zn-Pb Project 140 | P a g e
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        V7 7.15 7.09 99.22 205.9 24° 77°
        V2-1 1.27 1.25 98.54 333.66 24° 76°
        V2 2.17 2.16 99.72 389.79 24° 76°
        V2-2 1.31 1.29 98.33 431.21 22° 77°
        V6 0.83 0.83 100 459.31 22° 77°
    ZK3605 199.68 V2-1 1 0.99 99.38 27.14 20° 45°
        V2-0 0.44 0.43 98.97 69.76 20° 45°
        V2 5.21 5.12 98.34 84 20.5° 45°
        V2-2 1.18 1.17 99.22 112.76 20.5° 45°
        V6 0.37 0.37 99.01 142.02 20° 45°
    ZK3606 314.68 V7 0.45 0.44 97.78 21.57 20° 74°
        V2-1 4.51 4.41 97.78 103.22 21° 74°
        V2-0 1.83 1.82 99.45 157.81 20° 74°
        V2 1.1 1.08 98.55 167.53 20° 74°
        V2-2 0.83 0.83 100 222.07 20.5° 74°
        V6 0.9 0.9 100 252.07 21° 74.5°
    ZK3607 644.1 V9 1.9 1.78 93.68 59.3 20° 69°
        V10 0.5 0.49 98.4 91.8 21° 69°
        V5-1 3.56 3.48 97.75 132.5 24° 69°
        V5 0.4 0.38 94.75 219.75 22° 69°
        V7-1 2.25 2.25 99.95 305.15 23° 70°
        V7-0 1.95 1.95 100 389.3 21° 70°
        V7 1.1 1.07 97.27 398.6 21° 70°
        V2-1 0.83 0.83 100 493.22 21° 70°
        V2-0 0.58 0.58 99.43 513.21 21° 70°
        V2 0.8 0.8 100 537.3 22° 70°
        V2-2 1.16 1.16 100 571.35 23° 69.5°
        V6 0.55 0.54 98.73 601.4 23° 69.5°
    ZK4001 204.76 V2 1.35 1.35 100 65.96 20° 66°
        V2-2 2.34 2.34 100 95.26 20° 66°
    ZK4002 613.2 V5-1 0.6 0.59 98.15 78.85 20° 61°
        V10-1 0.9 0.9 100 128 20° 61°
        V5 0.5 0.5 100 160.4 20° 61°
        V7-1 0.65 0.65 100 239.7 20° 61.5°
        V10 1.05 0.98 93.33 265.05 20° 61.5°
        V7-0 1.15 1.15 100 286.35 21° 62°
        V7 0.45 0.45 100 309.8 21° 62°
        V2-1 1.4 1.37 98 374.65 23° 62°
        V2-0 0.45 0.45 99.33 401.95 21° 62°

       
    NI 43-101 Report GC Ag-Zn-Pb Project 141 | P a g e
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        V2 1.3 1.19 91.59 414.75 21° 62°
        V6 2 2 100 550.9 21° 61°
    ZK4003 487.7 V5-1 1.89 1.86 98.63 66.55 20° 48°
        V10-1 0.6 0.59 99.13 130.1 20° 48°
        V5 0.9 0.86 95.83 138.1 20° 48°
        V7-1 0.86 0.86 100 203.35 20° 47.5°
        V7-0 0.9 0.9 100 254.52 20° 49°
        V10 0.36 0.35 96.67 259.3 20° 49°
        V7 0.3 0.29 96.66 270.7 20° 49°
        V2-1 0.4 0.4 98.75 315.35 20° 49.5°
        V2-0 0.95 0.95 100 347 20° 50°
        V2 1.15 1.15 100 365.3 20° 50°
        V2-2 0.75 0.75 100 389.5 22° 49°
        V6 0.45 0.4 87.78 472.83 23° 49°
    ZK4004 593.99 V13 1.14 0.9 78.67 26.8 20° 60.5°
        V9 1.18 1.16 98.33 190.08 19° 61°
        V10-1 3.56 3.56 100 237.96 20° 61°
        V10 2.52 2.47 98.02 380.01 20° 60°
        V7-1 7.81 7.74 99.1 419.09 20° 60°
        V7-0 0.61 0.59 96.39 463.1 19° 60°
        V7 2.69 2.65 98.51 469.63 19° 60°
        V2-0 0.63 0.63 100 567.91 20° 60°
        V2 4.9 4.44 90.61 584.74 19° 60°
    ZK4401 549.3 V5 1 0.98 97.62 49.53 21° 68°
        V7-1 0.14 0.14 100 141.49 22° 68°
        V7-0 1.27 1.27 99.91 199.43 22° 67.5°
        V2-0 0.3 0.3 100 365.43 22° 67.5°
        V2 5.07 5.01 98.71 380.53 22° 67.5°
        V2-2 1.18 1.18 100 441.3 23° 66°
        V6-0 0.98 0.97 99.33 456.09 23° 66°
        V6 0.4 0.39 99.33 532.1 25° 66°
    ZK4402 615.22 V9 0.6 0.6 100 131.5 21° 67.5°
        V5-1 0.89 0.88 98.71 230.57 20° 69°
        V5 2.67 2.66 99.59 305.71 20° 68°
        V10-1 0.95 0.94 98.63 355.27 20° 67°
        V7-1 0.64 0.61 95.95 368.5 20° 67°
        V7-0 0.65 0.59 91.3 389.37 21° 68°
        V2-0 1.08 1.07 99.33 539.22 22.5° 69°
        V2 3.37 3.35 99.35 554.28 22.5° 69°

       
    NI 43-101 Report GC Ag-Zn-Pb Project 142 | P a g e
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    ZK4403 360.7 V7 0.5 0.5 100 95 19.5° 55°
        V2-1 0.96 0.93 96.39 114.5 19.5° 55°
        V10-1 2.3 2.24 97.35 164.3 18° 55°
        V2-0 0.6 0.59 97.67 187.5 21° 55°
        V2 0.3 0.29 97.14 191.2 21° 55°
        V2-2 4.5 4.5 100 264.2 20° 55°
        V6-0 1.39 1.36 98.15 292.43 22° 55°
        V6 1.12 1.12 100 323.58 22° 55°
    ZK4404 511.4 V13 1.1 1.1 100 103.2 20.4° 66.6°
        V9-1 0.5 0.49 100 193.8 23.4° 65.9°
        V9 0.45 0.45 100 294.95 24.8° 65.1°
        V5-1 4.2 4.2 100 393.45 24.9° 64.9°
        V10-1 1.18 1.17 99 413.17 24.9° 64.9°
        V5 0.25 0.25 100 480.35 25.2° 64.8°
    ZK44101 78.5 V2-2 0.6 0.59 98.33 4.1 305° 48°
          1 0.99 99.21 24.2 305° 48°
        V10 8.8 8.77 99.63 35.58 305° 48°
        V11 1.07 1.07 99.67 59.11 305° 48°
    ZK44102 79   2.7 2.69 99.67 32.1 305° 89°
          0.78 0.77 99.09 78.22 305° 89°
    ZK44103 243.12 V2-2 1.2 1.2 100 41.24 303° 65°
        V10-1 0.74 0.74 100 121.67 302° 65.5°
        V10 0.96 0.96 100 192.59 302° 65°
        V11 0.4 0.39 97.49 216.88 302° 65°
    ZK44201 100.2 V2-2 1.37 1.36 99.43 3.7 50°
        V10 1.81 1.8 99.67 46 51°
        V11 1.74 1.73 99.67 65.03 51°
        V6 0.95 0.95 99.67 85.2 52°
    ZK48001 232.67   0.35 0.35 99.67 72.65 305° 68°
        V10 1.74 1.73 99.4 186.2 305° 69°
        V11 1.4 1.39 99.67 219.24 305° 69°
    ZK48002 305.3 V10 1 0.99 99.38 247.74 300° 81°
        V11 1.39 1.38 99.67 295.6 300° 81°
    ZK4803 132.56 V2 0.3 0.3 99.67 71.79 203° 45°
    ZK4804 383.47   1.2 1.17 97.58 27 20° 72°
        V7-0 1.75 1.73 98.57 35.45 20° 72°
        V7 0.53 0.53 100 86.9 20° 72°
        V2-0 0.71 0.6 85.07 182.44 20° 73°
        V2 1.9 1.85 97.21 219.7 20° 73°

       
    NI 43-101 Report GC Ag-Zn-Pb Project 143 | P a g e
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    ZK4805 470.45 V7 0.6 0.6 100 335.4 21° 64°
        V2-1 1.85 1.84 99.46 394.05 21° 64°
        V2-0 0.7 0.7 100 410.25 21° 64°
    ZK48101 250.65 V6 0.96 0.96 99.62 54.8 351° 45°
    ZK48301 277.11 V10-1 0.2 0.2 99 130 267° 46.5°
        V2-2 3.66 3.57 97.67 169.55 267° 46.5°
          1.73 1.65 95.31 203.21 267.5° 46.5°
        V10 1 1 100 233.55 268° 46.5°
    ZK60101 384.96 V6 0.5 0.5 100 264.13 15° 43°
    ZK42101 233.21 V4 1 1 100 170.22 200° 45°
    ZK41101 243.2 V4 1.43 1.26 88.32 206 200° 45°
    ZK30301 271.74 V3 0.5 0.5 100 180.3 20° 50°
    ZK40101 196.81              
    ZK40601 212.14 V4-1 1 0.95 94.81 155.19 201° 52°
        V4 2 2 100 168.79 201° 52°
    ZK40602 354.17 V4 0.9 0.9 91.67 207.19 20° 66°
    ZK41801 223 V4 1.6 1.56 97.23 76.54 198° 45°
    ZK10501 168 V10-1 1.16 1.12 96.74 116.6 303° 29°
    ZK10502 216.92 V10-1 0.81 0.79 98 177.7 304.5° 84°
    ZK10901 365.75 V5-1 0.62 0.62 100 291.53 302° 66°
        V10-1 0.45 0.45 100 356.43 301° 66°



       
    NI 43-101 Report GC Ag-Zn-Pb Project 144 | P a g e
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