Silvercorp Metals Inc. reported the results of its successful 2011 underground diamond drilling program at the southwest corner (also called LM Mine West) of the TLP Mining Permit area, Ying Mining District, Henan, China. The drill program discovered four new high grade silver-lead veins, increasing the total number of mineralized veins at the LM Mine West to 31. The program also extended the previously known veins further to the down dip and striking directions. It is expected that the success of the 2011 drilling program will result in additional mineral resources being defined in the Resource and Reserve technical updates currently underway. The 2011 drilling program at the LM Mine West was designed to follow up on the successful 16,984 meter (m) 2010 drilling campaign, the results of which were incorporated into a new resource estimate. The 2011 drill program at the LM Mine West consisted of a total of 37,359 m of underground diamond drilling in 78 drill holes completed using six underground drill rigs. Hole ZKX0509 intercepted 7.39 m of vein LM13 grading 678 g/t Ag, 7.9% Pb and 0.85% Zn at the 572m elevation, including a 4.75m interval grading 863g/t Ag, 12.01% Pb and 1.16% Zn; Hole ZKX0001 intercepted 2 veins: (1) 2.52 m of vein LM12-3 grading 963 g/t Ag and 1.31% Pb at the 637m elevation, including a 1.63m interval grading 1430 g/t Ag and 2.00% Pb; and (2) 1.03 m of vein LM12-1 grading 572 g/t Ag and 7.09% Pb at the 629m elevation; Hole ZKX2801 intercepted 4.22 m of vein LM17 grading 327 g/t Ag and 0.54% Pb at the 840m elevation, including a 1.03m interval grading 982 g/t Ag and 0.65% Pb; Hole ZKX1705 intercepted 4.20 m of vein LM17 grading 314 g/t Ag and 0.45% Pb at the 724m elevation, including a 2.10m interval grading 554 g/t Ag and 0.36% Pb; Hole ZKX0002 intercepted 1.70 m of vein LM13W grading 688 g/t Ag, 2.96% Pb and 0.54% Zn at the 632m elevation, including a 0.55 m interval grading 1,981g/t Ag, 8.20% Pb and 1.50% Zn; Hole ZKX0902 intercepted 1.20 m of vein LM12-2 grading 1,137 g/t Ag, 0.36% Pb and 0.54% Zn, including a 0.52 m interval grading 2,525 g/t Ag, 0.32% Pb and 0.74% Zn; The four newly discovered veins are LM12E, W1, W6 and W18. Vein LM12E is a blind zone parallel to vein LM12, while the other three veins occur as blind zones at an area about 600 m west of the major known vein systems of the LM Mine West in the southwest corner of the TLP Mining Permit area. Vein LM12E occurs as a blind vein striking northeast and dipping northwest at an angle from 60 to 70 degrees on the footwall of vein LM12. The new vein was revealed by an exploration drift at the 898m level and is about 45m southeast of vein LM12. The dip extension has been tested with nine diamond drill holes sporadically distributed between 650m to 516m levels over 500m along strike. Seven holes intercepted Ag-Pb mineralization, including 302 g/t over 0.55 m true width in hole ZKX0001, 272 g/t Ag over 1.45m true width in hole ZKX1122, and 86.2 g/t Ag and 11.32% Pb over 0.79m true width in hole ZKX0903. The mineralized structure has been successfully traced for 500m along strike and more than 400m downdip. Vein W1 is located about 600m west of LM11 and dips northwest at an angle from 65 to 75 degrees. The vein was revealed in an exploration tunnel at the 930m level, and 11 underground holes were drilled from the tunnel to test the downdip extension between the 817m and 930m levels. Eight of the 11 drill holes intercepted significant mineralization, including 34.69 g/t Ag, 6.42% Pb and 1.43% Zn over 0.74 m true width in hole ZKX13801, 297 g/t Ag and 3.01% Pb over 0.96 m in hole ZKX13402, and 234.5 g/t Ag and 2.97% Pb over 0.39 m in hole ZKX13403. A mineralized zone of 100m in length and 60m in depth has been defined by the drilling and tunneling. Vein W18 strikes 330 degrees with a dip angle of 65 to 75 degrees to the northeast and crosscuts vein W1 near the south end. Eight holes were drilled to test the mineralized structure in 2011. All the drill holes cut through the vein structure, and 2 of the 8 holes, ZKX13402 and ZKX13403, intercepted significant Ag-Pb mineralization including 25 g/t Ag and 11.69% Pb over 0.34 m true width at the 930m level in hole ZKX13402 and 177 g/t Ag and 1.20% Pb over 0.76 m true width at the 879m level in ZKX13403. Vein W6 is approximately 160m east of Vein W18 and the two vein structures are parallel to each other. The mineralized structure was revealed in an exploration tunnel at the 930m level. Twelve exploration holes were drilled to test the downdip extension of the mineralized structure between 930m and 700m levels. Whiles all holes detected the mineralized structure, four drill holes intercepted apparent Ag-Pb mineralization, including 122 g/t Ag and 19.18% Pb over 0.36 m true width at the 860m level in hole ZKX13601, 271 g/t Ag and 1.82% Pb over 0.39 m true width at the 879m level in hole ZKX13804, 217 g/t Ag over 0.63 m at the 835m level in hole ZKX14001, and 23 g/t Ag and 4.98% Pb over 0.65cm at the 772m level in hole ZKX14002.