Vancouver, B.C. MAG Silver Corp. (TSX: MAG; NYSE-A: MVG) (“MAG” or the “Company”) announces the Company’s unaudited financial results for the three and nine months ended September 30, 2011. For complete details of the third quarter unaudited Condensed Interim Consolidated Financial Statements and related Management’s Discussion and Analysis, please see the Company’s filings on SEDAR (www.sedar.com) or on EDGAR (www.sec.gov). All amounts herein are reported in Canadian dollars unless otherwise specified.

At September 30, 2011, the Company had working capital of $31,220,432, including cash on hand of $30,373,116.

The Company’s net loss for the three and nine months ended September 30, 2011 amounted to $3,006,520 and $4,394,366 respectively (September 30, 2010: $4,169,838 and $7,724,699 respectively). The net loss for the current period is less than the comparable loss of the prior period, primarily due to: the receipt of an arbitration award recognized as income in the current period of $1,799,775 (US $1.86 million) related to the arbitration proceedings against Fresnillo plc (“Fresnillo”); and, the fact that no exploration and evaluation costs were written off in the current period (in the previous three and nine months ended September 30, 2010, the Company wrote down exploration and evaluation assets totalling $1,898,794). There have been no impairments in the current year to date. During the three and nine months ended September 30, 2011, the Company granted 750,000 and 750,000 stock options respectively, (September 30, 2010 — 385,000 and 775,000 respectively) and recorded $1,706,002 and 2,488,698 (September 30, 2010 — $568,067 and $1,727,468 respectively) of compensation expense relating to stock options vested to employees and consultants in the period. In the prior year and as previously disclosed, the Company appointed Michael Anthony Petrina, P.ENG, MBA, as Vice President Operations, and upon his appointment September 1, 2010, Mr. Petrina was granted 200,000 inducement stock options at $8.15 (reflecting market price on the date of the grant). These inducement options fully vested on March 1, 2011 and expire on September 1, 2015.

Juanicipio Property

Evaluation and exploration expenditures directly incurred by Minera Juanicipio S.A. de C.V. (“Minera Juanicipio”) for the nine months ended September 30, 2011 amounted to US$3,288,026 including US$1,234,821 in the quarter ended September 30, 2011. In the nine months ended September 30, 2011, Minera Juanicipio completed 18,882 metres of drilling on the property, including 8,161 metres in the quarter ended September 30, 2011, representing approximately 75% of the original 2011 budgeted drilling meterage for the year. In September 2011, Minera Juanicipio approved a budget increase of $US 1.0 million (MAG’s share US$ 440,000) to cover the cost of continued drilling on the Juanicipio joint venture through the end of the year. Currently, eight drills continue in operation on the property.

Strathcona Mineral Services Limited (“SMS”) was contracted in July 2011 by Minera Juanicipio to prepare an independent updated resource estimate on the property based on drilling done up to June 2011. The updated resource estimate, which complied with Canadian National Instrument 43-101, was completed in early November (see Press Release dated November 10, 2011 http://www.magsilver.com/s/NewsReleases.asp?ReportID=490128) and is a key step toward finalizing an updated economic assessment currently being prepared by AMC Mining Consultants (Canada) Ltd (“AMC”) of a “standalone” underground silver mine (the “AMC Study”). The AMC Study is one of the studies necessary to evaluate the manner in which the Juanicipio Property might be developed, and MAG expects it to include a compilation of possible mine development scenarios and their associated economic advantages. Completion of the AMC Study will mark an important milestone in moving the Juanicipio project to the next level.

The SMS resource estimate has been forwarded to AMC, and although no assurances can be made regarding AMC’s timing for delivery, the Company now anticipates the AMC Study will be completed early in the first quarter of 2012, subject to the schedules of the authors.

Cinco de Mayo Property

Exploration and evaluation expenditures incurred at Cinco de Mayo in the nine months ended September 30, 2011 were $5,697,324 (2010: $7,500,652) with 23,771 metres (2010: 41,914 metres) drilled, including $2,142,645 (2010: $1,908,625) of expenditures and 7,785 metres (2010: 10,720) of drilling in the three months ended September 30, 2011. Much of the work done during the quarter ended September 30, 2011 was focused in the emerging “Polaris Zone” and the zone between the Jose Manto and Cinco Ridge, a distance of almost 4 kilometres. The drilling at Polaris revealed a strong SE-NW trend that projects southeast through the range towards the northern end of the Jose Manto. Review and comparison of drilling results from this structure and the Jose Manto suggested that the two might be linked, with one fed from the other. Recent drilling in the southeast area of the Jose Manto also intercepted massive sulphide in a series of six holes potentially expanding the zone to the southeast. The holes were drilled on 200-250 metre centres over a 1,000 metre strike length. Assays for the six holes are pending.

Qualified Person: Dr. Peter Megaw, Ph.D., C.P.G., has acted as the qualified person as defined in National Instrument 43-101 for this disclosure and supervised the preparation of the remaining technical information in this release. Dr. Megaw has a Ph.D. in geology and more than 20 years of relevant experience focused on silver and gold mineralization, and exploration and drilling in Mexico. He is a certified Professional Geologist (CPG 10227) by the American Institute of Professional Geologists and an Arizona registered geologist (ARG 21613). Dr. Megaw is not independent as he is a Director and Shareholder of MAG. Dr. Megaw is satisfied that the results are verified based on an inspection of the core, a review of the sampling procedures, the credentials of the professionals completing the work and the visual nature of the silver and base metal sulphides within these districts where he is familiar with the style and continuity of mineralization.

About MAG Silver Corp. (www.magsilver.com )

MAG is focused on district scale projects located within the Mexican Silver Belt. Our mission is to become one of the premier companies in the silver mining industry. MAG is conducting ongoing exploration of its portfolio of 100% owned properties in Mexico including a silver, lead and zinc discovery and a moly-gold discovery at its 100% owned Cinco de Mayo property in Chihuahua State. MAG and Fresnillo plc are jointly developing the Valdecañas Deposit on the Juanicipio Joint Venture in Zacatecas State. MAG is based in Vancouver, British Columbia, Canada. Its common shares trade on the TSX under the symbol MAG and on the NYSE-Amex under the symbol MVG.

On behalf of the Board of

MAG SILVER CORP.

“Larry Taddei”

Chief Financial Officer