Silvercorp Intersects Vein LM7 With 19.67 Metres True Width Grading 261 Grams Per Tonne Silver, 1.1% Lead, and 0.78% Copper at the LMW Mine, Ying Mining District, China

- May 25th, 2021

Trading Symbol: TSX NYSE American: SVM  Silvercorp Metals Inc. is pleased to report wide and high-grade intercepts from its 2021 exploration program at the LMW mine, Ying Mining District, Henan Province China . Extensive exploration drilling and tunnelling are ongoing at the LMW mine and all other mines at the Ying Mining District. The drilling program from October 1, 2020 to May 1, 2021 at the LMW mine has been …

Trading Symbol: TSX / NYSE American: SVM

 Silvercorp Metals Inc. (“Silvercorp” or the “Company”) (TSX: SVM) (NYSE American: SVM) is pleased to report wide and high-grade intercepts from its 2021 exploration program at the LMW mine, Ying Mining District, Henan Province China . Extensive exploration drilling and tunnelling are ongoing at the LMW mine and all other mines at the Ying Mining District.

The drilling program from October 1, 2020 to May 1, 2021 at the LMW mine has been focused on in-fill drilling target areas of known silver-lead-zinc veins that were believed to be uneconomic based on limited prior drilling and tunneling. Currently, ten rigs are drilling at the LMW mine and a total of 116 diamond drill holes, including 100 underground holes and 16 surface holes totaling 22,890 metres (“m”) have been completed. Assay results for 101 holes have been received with 53 holes intercepting many zones of high-grade silver-lead mineralization and gold mineralization, including veins LM7, LM7E, LM8, LM8_1, LM12, LM12_1, LM13, LM13W, LM16W1, LM17, LM17E, LM19, LM19Wa, LM41E, LM41E1, and LM50.

Wide Intercepts of Vein LM7

Four in-fill drill holes, together with cross-cut tunnels and previously intercepted drill holes, have defined a block of vein LM7 showing wide intercepts trace along a strike length of 320 m near the development tunnels at the 600 m level. Currently, three rigs are drilling this discovery:

  • Hole ZKX0575 intersected a 20.75 m interval ( 19.67 m true width) of vein LM7 grading 261 grams per tonne (“g/t”) silver (“Ag”), 1.08% lead (“Pb”), 0.04% zinc (“Zn”), 0.16 g/t gold (“Au”), and 0.78% copper (“Cu”), which includes an 8.43 m interval ( 8.0 m true width) grading 532 g/t Ag, 2.20% Pb, 0.07% Zn, 0.31 g/t Au, and 1.62% Cu;
  • Hole ZKX0530 intersected a 25.58 m interval ( 23.96 m true width) of vein LM7 grading 202 g/t Ag, 1.26% Pb, 0.12% Zn, 0.15 g/t Au, and 0.37% Cu, including 3.98 m interval ( 3.73 m true width) grading 818 g/t Ag, 2.9% Pb, 0.05% Zn, 0.23 g/t Au, and 0.46% Cu;
  • Hole ZKX0751 intersected a 20.03 m interval ( 19.32 m true width) of vein LM7 grading 162 g/t Ag, 1.38% Pb, 0.11% Zn, 0.09 g/t Au, and 1.00% Cu; and
  • Hole ZKX0732 intersected a 16.93 m interval ( 16.16 m true width) of vein LM7 grading 112 g/t Ag, 2.00% Pb, 0.13% Zn, 0.09g/t Au, and 0.79% Cu.

Confirmation of Vein W1

Drilling and drift tunnels have further demonstrated continuity of the near north-south extending W1 and northwestern striking W6, W6E1, W6E2, W6W, and W18 veins, with high-grade silver-lead mineralization intercepts at 800 m to 950 m elevation in the northwestern part of the LMW mine. The discoveries are expected to expand the resources in this area.

Highlights of selected drill hole intercepts:

  • Hole ZKX0429 intersected a 1.51 m interval ( 1.50 m true width) of vein W1 grading 1,103 g/t Ag, 1.46% Pb, 0.10% Zn, 0.05 g/t Au, and 0.65% Cu, which includes a 0.79 m interval ( 0.77 m true width) grading 2,078 g/t Ag, 0.41% Pb, 0.11% Zn, 0.09 g/t Au, and 1.22% Cu; and
  • Hole ZKX0728 intersected a 1.17 m interval of vein W1 grading 1,072 g/t Ag, 1.52% Pb, 0.09% Zn, 0.15 g/t Au, and 0.08 Cu.

Ongoing Drilling of Sub-Horizontal Gold Zone at Vein LM50

As listed in Table 1 below, ten drill holes intercepted the sub-horizontal gold structures at LM50, with Hole ZKX0423 intersecting a 2.25 m interval ( 1.62 m true width) of vein LM50 grading 10.53 g/t Au.

In-fill Drilling of Other Veins

  • Hole ZKX0383 intersected a 2.59 m interval ( 1.95 m true width) of vein LM13 grading 1,166 g/t Ag, 0.04% Pb, 0.06% Zn, 0.74 g/t Au, and 0.65% Cu, which includes a 1.37 m interval ( 1.03 m true width) grading 2,179 g/t Ag, 0.07% Pb, 0.10% Zn, 0.05 g/t Au, and 0.90% Cu;
  • Hole ZKX0305_1 intersected a 6.44 m interval ( 2.67 m true width) of vein LM13W2 grading 386 g/t Ag, 1.82% Pb, 0.08% Zn, 0.07 g/t Au, and 0.80 g/t Cu; and
  • Hole ZKX3811 intersected a 5.16 m interval ( 4.97 m true width) of vein LM17 grading 388 g/t Ag, 1.95% Pb, 0.09% Zn, 0.04 g/t Au, and 0.08% Cu, which includes a 1.80 m interval ( 0.99 m true width) of 833 g/t Ag, 3.11%Pb, 0.10% Zn, 0.06 g/t Au, and 0.19% Cu.

Tunneling Results

In addition, a total of 3,352 m of exploration tunnels have been developed at the LMW mine during the period. These exploration tunnels (including 2,434 m of drifts) were driven along and across major mineralized vein structures to upgrade the drill defined mineral resources and test for new parallel and splay structures, and are summarized as follows:

Major Target Veins

Elevation
(m)

Total
Tunneling
(m)

Channel
Samples
Collected

Drift
Included
(m)

Total Mineralization Exposed by Drifts [1]

Length
(m)

Average True
Width
( m)

Ag
(g/t)

Pb
(%)

Zn
(%)

Au
(g/t)

Cu
(%)

LM12_1, LM14, LM16,
LM17, LM17W, LM19W2,
LM41E, LM41E1, LM41Ea,
LM50, LM7, W1, W6, W6E1,
6E2, W6W, W18

500-1080

3,352

1,796

2,434

577

0.66

507

4.35

0.48

0.05

0.19

[1] Mineralization is defined by silver equivalent value (AgEq) greater than or equal to 155 g/t at the LMW mine (Formula used for AgEq calculation: AgEq = Ag g/t + 35.06 * (Pb% + Cu%) + 79.57 * Au g/t).

Highlights of selected mineralized zones exposed in the drift tunnels:

  • Drift Tunnel XPDN-LM17-800-9SYM exposed mineralization 15 m long and 1.38 m wide (true width) grading 1,460 g/t Ag, 11.36% Pb, 0.87% Zn, 0.02 g/t Au, and 0.22% Cu within vein LM17;
  • Drift Tunnel XPDS-LM17-575-26SYM exposed mineralization 40 m long and 1.54 m wide (true width) grading 708 g/t Ag, 4.57% Pb, 0.40% Zn, 0.26 g/t Au and 0.47% Cu within vein LM17; and
  • Drift Tunnel PD918-W1-918-4SYM exposed mineralization 15 m long and 0.85 m wide (true width) grading 1,561 g/t Ag, 4.31% Pb, 0.62% Zn, 0.02 g/t Au, and 0.45% Cu within vein W1.

Table 1:  Selected results from the 2021 drill programs at the LMW mine

Hole ID

From
(m)

To
(m)

Elevation
(m)

interval
(m)

True
Width
(m)

Ag
(g/t)

Pb
(%)

Zn
(%)

Au
(g/t)

Cu
(%)

Vein

Ore
Type

ZKX0009

132.51

133.14

514

0.63

0.50

14

0.84

0.29

12.38

0.01

LM20

Au

ZKX0022

26.64

27.58

892

0.94

0.92

208

0.68

0.07

0.01

0.02

LM13

Ag-Pb

ZKX0024

5.38

6.39

902

1.01

0.69

1,623

0.20

0.08

0.01

0.04

LM13W

Ag-Pb

ZKX0217

297.50

298.51

845

1.01

0.67

195

0.10

0.16

0.04

0.02

LM17

Ag-Pb

ZKX0305_1

48.80

49.57

882

0.77

0.35

2,290

0.31

0.05

0.01

0.02

LM22

Ag-Pb

ZKX0305_1

93.98

95.13

841

1.15

0.51

10

0.18

0.06

2.27

0.02

LM50

Au

ZKX0305_1

225.07

231.51

719

6.44

2.67

386

1.82

0.08

0.07

0.80

LM13W2

Ag-Pb

ZKX0305_1

250.08

251.91

700

1.83

0.76

467

0.40

0.05

0.01

0.15

LM21

Ag-Pb

ZKX0333

48.04

49.10

898

1.06

1.06

232

2.36

0.04

0.05

0.15

LM13W

Ag-Pb

ZKX0355

115.70

116.43

813

0.73

0.73

19

5.87

0.31

0.04

0.00

LM19W2a

Ag-Pb

ZKX0383

72.84

75.43

916

2.59

1.95

1,166

0.04

0.06

0.74

0.65

LM13

Ag-Pb

including

72.84

74.21

917

1.37

1.03

2,179

0.07

0.10

0.05

0.90

LM13

Ag-Pb

ZKX0413

287.53

288.34

409

0.81

0.50

286

1.79

0.14

0.02

0.09

LM41E

Ag-Pb

ZKX0413

501.84

502.89

258

1.05

0.64

698

11.69

0.40

0.29

0.15

LM17E

Ag-Pb

ZKX0423

221.18

222.51

757

1.33

0.96

222

1.96

0.67

0.03

0.08

LM17

Ag-Pb

ZKX0423

227.07

228.29

754

2.25

1.62

2

0.03

0.02

10.53

0.02

LM50

Au

ZKX0428

30.32

32.12

933

1.80

1.57

240

0.31

0.28

0.05

0.03

W18E

Ag-Pb

ZKX0428

147.62

149.07

916

1.45

1.38

238

2.21

0.19

0.05

0.14

W1

Ag-Pb

ZKX0429

79.38

79.96

915

0.58

0.26

219

1.12

2.07

0.01

0.09

W2

Ag-Pb

ZKX0429

151.35

152.86

895

1.51

1.50

1,103

1.46

0.10

0.05

0.65

W1

Ag-Pb

Including

151.35

152.14

895

0.79

0.77

2,078

0.41

0.11

0.09

1.22

W1

Ag-Pb

ZKX0530

118.63

144.21

550

25.58

23.96

202

1.26

0.12

0.15

0.37

LM7

Ag-Pb

Including

140.23

144.21

540

3.98

3.73

818

2.90

0.05

0.23

0.46

LM7

Ag-Pb

ZKX0564

159.74

163.56

794

3.82

2.21

3

0.08

0.02

2.60

0.01

LM50

Au

ZKX0564

180.21

181.89

776

1.68

0.98

2

0.01

0.01

1.86

0.01

LM51

Au

ZKX0566

167.48

169.11

794

1.63

0.72

5

0.11

0.02

1.63

0.00

LM50

Au

ZKX0567

157.48

158.34

784

0.86

0.69

10

0.41

0.31

1.30

0.01

LM50

Au

ZKX0575

79.38

100.13

558

20.75

19.67

261

1.08

0.04

0.16

0.78

LM7

Ag-Pb

including

80.54

88.97

561

8.43

8.00

532

2.20

0.07

0.31

1.62

LM7

Ag-Pb

ZKX0719

18.94

19.60

912

0.66

[1]

1,121

7.24

0.35

0.21

0.11

LM19

Ag-Pb

ZKX0728

128.99

130.57

998

1.58

[1]

95

0.25

0.07

6.02

0.29

W1

Ag-Pb

ZKX0728

188.33

189.50

953

1.17

[1]

1,072

1.52

0.09

0.15

0.08

W1

Ag-Pb

ZKX0732

122.10

139.03

550

16.93

16.16

112

2.00

0.13

0.09

0.79

LM7

Ag-Pb

ZKX0751

73.73

74.23

565

0.50

0.45

212

0.87

0.76

0.11

0.14

[2]

Ag-Pb

ZKX0751

82.29

102.32

557

20.03

19.32

162

1.38

0.11

0.09

1.00

LM7

Ag-Pb

ZKX0811

186.63

187.26

465

0.63

0.53

12

0.11

0.15

1.75

0.01

LM55

Au

ZKX0945

80.54

81.56

878

1.02

0.93

418

0.48

0.18

0.05

0.04

LM13

Ag-Pb

ZKX0945

277.30

278.25

759

0.95

0.86

214

0.55

0.15

0.15

0.39

LM8

Ag-Pb

ZKX0957

137.43

138.67

795

1.24

0.95

338

0.86

0.17

1.29

0.03

LM50

Au

ZKX0959

67.91

68.34

872

0.43

0.21

5,680

1.07

0.52

0.04

5.91

LM8_2

Ag-Pb

ZKX0959

130.27

132.20

819

1.93

0.92

223

0.13

0.02

0.01

0.08

LM8_1

Ag-Pb

ZKX0959

156.85

159.70

797

2.85

1.36

129

0.78

0.20

0.77

0.09

LM50

Au

ZKX10813

106.36

107.60

866

1.24

1.20

358

3.40

0.72

0.33

0.02

LM8_4

Ag-Pb

ZKX10813

144.84

145.38

843

0.54

0.52

52

5.68

0.50

0.03

0.05

LM8_4a

Ag-Pb

ZKX10825

138.34

139.46

843

1.12

1.08

13

0.02

0.01

2.42

0.01

LM50

Au

ZKX10827

112.51

114.55

846

2.04

1.87

147

0.75

0.06

0.91

0.04

LM50

Au

ZKX1115

24.96

25.58

909

0.62

0.47

502

0.11

0.28

0.03

0.04

LM12

Ag-Pb

ZKX11210

133.80

134.99

836

1.19

0.70

6

0.01

0.02

2.32

0.00

LM50

Ag-Pb

ZKX11210

165.56

166.80

814

1.24

0.73

147

0.01

0.01

0.03

0.02

LM8W

Ag-Pb

ZKX11210

337.53

338.50

697

0.97

0.59

129

0.32

0.15

0.01

0.07

LM8_3W

Ag-Pb

ZKX11210

428.51

429.13

636

0.62

0.38

100

11.56

1.77

0.09

0.42

LM8_3

Ag-Pb

ZKX11210

512.78

513.57

579

0.79

0.48

261

3.72

0.55

0.09

0.08

LM8_4

Ag-Pb

ZKX11307

173.57

174.36

863

0.79

0.56

171

0.91

0.04

0.03

0.02

LM17W1

Ag-Pb

ZKX3811

90.89

93.11

921

2.22

1.85

512

0.48

0.1

0.01

0.24

LM16W1

Ag-Pb

ZKX3811

338.84

344.0

706

5.16

4.97

388

1.95

0.09

0.04

0.08

LM17

Ag-Pb

Including

340.77

342.89

705

1.80

0.99

833

3.11

0.10

0.06

0.19

LM17

Ag-Pb

ZKX4210

247.01

247.76

801

0.75

0.51

74

8.19

0.18

0.03

0.02

LM17

Ag-Pb

ZKX6403

42.08

42.49

1,010

0.41

0.37

29

0.02

0.04

0.01

3.03

LM17

Ag-Pb

ZKX6403

261.10

261.33

863

0.23

0.22

167

0.62

0.11

18.90

0.28

LMW8

Ag-Pb

[1] True width not determined

[2] New veins with no name assigned.

Table 2:  Selected mineralized zones exposed by drift tunnelling at the LMW mine

Tunnel ID

Vein

Elevation
(m)

Ore Length
(m)

True Width
(m)

Ag
(g/t)

Pb
(%)

Zn
(%)

Au
g/t)

Cu
(%)

SJ969-LM7-550-9ECM [1]

LM7

550

13.57

72

2.02

0.09

0.04

0.56

XPDS-LM14-575-26SYM

LM14

575

10

0.45

38

1.63

0.73

0.02

0.06

XPDS-LM14-525-115NYM

LM14

525

45

0.66

675

1.33

0.19

0.02

0.62

XPDS-LM16-695-109TJ-SYM

LM16

675

42

0.65

584

2.56

0.34

0.02

0.45

XPDN-LM17-800-9SYM

LM17

800

15

1.38

1,460

11.36

0.87

0.02

0.22

XPDN-LM17-750-7NYM

LM17

750

40

0.72

517

6.50

0.38

0.02

0.10

XPDS-LM17-625-28SYM

LM17

625

10

0.65

194

1.56

0.82

0.02

0.06

XPDS-LM17-575-26SYM

LM17

575

40

1.54

708

4.57

0.40

0.26

0.47

PD1080-LM41E-1080-11SYM

LM41E

1080

10

0.49

1,017

0.63

0.21

0.02

0.55

PD990-LM41E-990-9NYM

LM41E

990

15

0.27

96

1.04

0.74

0.02

0.04

PD990-LM41E-990-9SYM

LM41E

990

50

0.37

287

2.87

0.58

0.02

0.05

PD924-LM41E-924-3NYM

LM41E

924

10

0.50

198

1.23

0.26

0.02

0.07

PD918-W1-918-4SYM

W1

918

15

0.85

1,561

4.31

0.62

0.02

0.45

PD918-W1-880-8NYM

W1

880

45

0.81

280

2.61

0.18

0.02

0.08

PD918-W18-880-140SYM

W18

880

30

0.44

35

3.03

0.05

0.02

0.01

PD918-W18-880-140NYM

W18

880

65

0.46

108

6.22

0.33

0.02

0.01

PD918-W6-880-128NYM

W6

880

45

0.62

121

5.11

0.59

0.02

0.02

PD918-W6E1-880-138NYM

W6E1

880

20

0.59

236

2.75

0.25

0.02

0.02

PD918-W6E1-880-138SYM

W6E1

880

15

0.51

181

4.82

1.04

0.02

0.05

PD924-W6E1-834-132SYM

W6E1

834

10

0.43

270

5.37

1.75

0.02

0.06

[1] cross cut

Quality Control

Drill cores are NQ size. Drill core samples, limited by apparent mineralization contacts or shear/alteration contacts, were split into halves by saw cutting. The half cores are stored in the Company’s core shacks for future reference and checks, and the other half core samples are shipped in securely sealed bags to the Chengde Huakan 514 Geology and Minerals Test and Research Institute in Chengde, Hebei Province , China , 226km northeast of Beijing , the Zhengzhou Nonferrous Exploration Institute Lab in Zhengzhou , Henan Province , China , and SGS-CSTC Standards Technical Services ( Tianjin ) Co., Ltd., Tianjin, China . All the three labs are ISO9000 certified analytical labs. For analysis, the sample is dried and crushed to minus 1mm and then split to a 200-300 g subsample which is further pulverized to minus 200 mesh. Two subsamples are prepared from the pulverized sample. One is digested with aqua regia for gold analysis with atomic absorption spectroscopy (AAS), and the other is digested with two-acids for analysis of silver, lead, zinc and copper with AAS.

Channel samples are collected along sample lines perpendicular to the mineralized vein structure in exploration tunnels. Spacing between sampling lines is typically 5 m along strike. Both the mineralized vein and the altered wall rocks are cut by continuous chisel chipping. Sample length ranges from 0.2 m to more than 1.0 m , depending on the width of the mineralized vein and the mineralization type. Channel samples are prepared and assayed with AAS at Silvercorp’s mine laboratory ( Ying Lab ) located at the mill complex in Luoning County, Henan Province , China . The Ying lab is officially accredited by the Quality and Technology Monitoring Bureau of Henan Province and is qualified to provide analytical services. The channel samples are dried, crushed and pulverized. A 200 g sample of minus 160 mesh is prepared for assay. A duplicate sample of minus 1mm is made and kept in the laboratory archives. Gold is analysed by fire assay with AAS finish, and silver, lead, zinc and copper are assayed by two-acid digestion with AAS finish.

A routine quality assurance/quality control (QA/QC) procedure is adopted to monitor the analytical quality at each lab. Certified reference materials (CRMs), pulp duplicates and blanks are inserted into each batch of lab samples. QA/QC data at the lab are attached to the assay certificates for each batch of samples.

The Company maintains its own comprehensive QA/QC program to ensure best practices in sample preparation and analysis of the exploration samples. Project geologists regularly insert CRM, field duplicates and blanks to each batch of 30 core samples to monitor the sample preparation and analysis procedures at the labs. The analytical quality of the labs is further evaluated with external checks by sending approximately 3-5% of the pulp samples to higher level labs to check for lab bias. Data from both the Company’s and the labs’ QA/QC programs are reviewed on a timely basis by project geologists.

Guoliang Ma , P. Geo., Manager of Exploration and Resource of the Company, is the Qualified Person for Silvercorp under NI 43-101 and has reviewed and given consent to the technical information contained in this news release.

About Silvercorp

Silvercorp is a profitable Canadian mining company producing silver, lead and zinc metals in concentrates from mines in China . The Company’s goal is to continuously create healthy returns to shareholders through efficient management, organic growth and the acquisition of profitable projects. Silvercorp balances profitability, social and environmental relationships, employees’ wellbeing, and sustainable development. For more information, please visit our website at www.silvercorp.ca .

CAUTIONARY DISCLAIMER – FORWARD LOOKING STATEMENTS

Certain of the statements and information in this news release constitute “forward-looking statements” within the meaning of the United States Private Securities Litigation Reform Act of 1995 and “forward-looking information” within the meaning of applicable Canadian provincial securities laws. Any statements or information that express or involve discussions with respect to predictions, expectations, beliefs, plans, projections, objectives, assumptions or future events or performance (often, but not always, using words or phrases such as “expects”, “is expected”, “anticipates”, “believes”, “plans”, “projects”, “estimates”, “assumes”, “intends”, “strategies”, “targets”, “goals”, “forecasts”, “objectives”, “budgets”, “schedules”, “potential” or variations thereof or stating that certain actions, events or results “may”, “could”, “would”, “might” or “will” be taken, occur or be achieved, or the negative of any of these terms and similar expressions) are not statements of historical fact and may be forward-looking statements or information. Forward-looking statements or information relate to, among other things: the price of silver and other metals; the accuracy of mineral resource and mineral reserve estimates at the Company’s material properties; the sufficiency of the Company’s capital to finance the Company’s operations; estimates of the Company’s revenues and capital expenditures; estimated production from the Company’s mines in the Ying Mining District; timing of receipt of permits and regulatory approvals; availability of funds from production to finance the Company’s operations; and access to and availability of funding for future construction, use of proceeds from any financing and development of the Company’s properties.

Forward-looking statements or information are subject to a variety of known and unknown risks, uncertainties and other factors that could cause actual events or results to differ from those reflected in the forward-looking statements or information, including, without limitation, social and economic impacts of COVID-19; risks relating to: fluctuating commodity prices; calculation of resources, reserves and mineralization and precious and base metal recovery; interpretations and assumptions of mineral resource and mineral reserve estimates; exploration and development programs; feasibility and engineering reports; permits and licenses; title to properties; property interests; joint venture partners; acquisition of commercially mineable mineral rights; financing; recent market events and conditions; economic factors affecting the Company; timing, estimated amount, capital and operating expenditures and economic returns of future production; integration of future acquisitions into the Company’s existing operations; competition; operations and political conditions; regulatory environment in China and Canada ; environmental risks; foreign exchange rate fluctuations; insurance; risks and hazards of mining operations; key personnel; conflicts of interest; dependence on management; internal control over financial reporting as per the requirements of the Sarbanes-Oxley Act; and bringing actions and enforcing judgments under U.S. securities laws.

This list is not exhaustive of the factors that may affect any of the Company’s forward-looking statements or information. Forward-looking statements or information are statements about the future and are inherently uncertain, and actual achievements of the Company or other future events or conditions may differ materially from those reflected in the forward-looking statements or information due to a variety of risks, uncertainties and other factors, including, without limitation, those referred to in the Company’s Annual Information Form under the heading “Risk Factors”.  Although the Company has attempted to identify important factors that could cause actual results to differ materially, there may be other factors that cause results not to be as anticipated, estimated, described or intended. Accordingly, readers should not place undue reliance on forward-looking statements or information.

The Company’s forward-looking statements and information are based on the assumptions, beliefs, expectations and opinions of management as of the date of this news release, and other than as required by applicable securities laws, the Company does not assume any obligation to update forward-looking statements and information if circumstances or management’s assumptions, beliefs, expectations or opinions should change, or changes in any other events affecting such statements or information. For the reasons set forth above, investors should not place undue reliance on forward-looking statements and information.

CAUTIONARY NOTE TO US INVESTORS

The disclosure in this news release and referred to herein was prepared in accordance with NI 43-101 which differs significantly from the requirements of the U.S. Securities and Exchange Commission (the “SEC”). The terms “proven mineral reserve”, “probable mineral reserve” and “mineral reserves” used in this news release are in reference to the mining terms defined in the Canadian Institute of Mining, Metallurgy and Petroleum Standards (the “CIM Definition Standards”), which definitions have been adopted by NI 43-101. Accordingly, information contained in this news release providing descriptions of our mineral deposits in accordance with NI 43-101 may not be comparable to similar information made public by other U.S. companies subject to the United States federal securities laws and the rules and regulations thereunder.

Investors are cautioned not to assume that any part or all of mineral resources will ever be converted into reserves. Pursuant to CIM Definition Standards, “Inferred mineral resources” are that part of a mineral resource for which quantity and grade or quality are estimated on the basis of limited geological evidence and sampling. Such geological evidence is sufficient to imply but not verify geological and grade or quality continuity. An inferred mineral resource has a lower level of confidence than that applying to an indicated mineral resource and must not be converted to a mineral reserve. However, it is reasonably expected that the majority of inferred mineral resources could be upgraded to indicated mineral resources with continued exploration. Under Canadian rules, estimates of inferred mineral resources may not form the basis of feasibility or pre-feasibility studies, except in rare cases. Investors are cautioned not to assume that all or any part of an inferred mineral resource is economically or legally mineable. Disclosure of “contained ounces” in a resource is permitted disclosure under Canadian regulations; however, the SEC normally only permits issuers to report mineralization that does not constitute “reserves” by SEC standards as in place tonnage and grade without reference to unit measures.

Canadian standards, including the CIM Definition Standards and NI 43-101, differ significantly from standards in the SEC Industry Guide 7. Effective February 25, 2019 , the SEC adopted new mining disclosure rules under subpart 1300 of Regulation S-K of the United States Securities Act of 1933, as amended (the “SEC Modernization Rules”), with compliance required for the first fiscal year beginning on or after January 1, 2021. The SEC Modernization Rules replace the historical property disclosure requirements included in SEC Industry Guide 7. As a result of the adoption of the SEC Modernization Rules, the SEC now recognizes estimates of “Measured Mineral Resources”, “Indicated Mineral Resources” and “Inferred Mineral Resources”. In addition, the SEC has amended its definitions of “Proven Mineral Reserves” and “Probable Mineral Reserves” to be substantially similar to corresponding definitions under the CIM Definition Standards. During the period leading up to the compliance date of the SEC Modernization Rules, information regarding mineral resources or reserves contained or referenced in this news release may not be comparable to similar information made public by companies that report according to U.S. standards. While the SEC Modernization Rules are purported to be “substantially similar” to the CIM Definition Standards, readers are cautioned that there are differences between the SEC Modernization Rules and the CIM Definitions Standards. Accordingly, there is no assurance any mineral reserves or mineral resources that the Company may report as “proven mineral reserves”, “probable mineral reserves”, “measured mineral resources”, “indicated mineral resources” and “inferred mineral resources” under NI 43-101 would be the same had the Company prepared the reserve or resource estimates under the standards adopted under the SEC Modernization Rules.

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SOURCE Silvercorp Metals Inc

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