News Release

FOR IMMEDIATE RELEASE TSX, ASX: AVM August 12, 2011 Common shares outstanding 157.9 million All amounts are expressed in US dollars, unless otherwise stated.

Anvil Mining Reports Second Quarter 2011 ResultsConstruction of the Kinsevere Stage II SX-EW Plant Now Complete

Montréal, Canada: Anvil Mining Limited (TSX, ASX: AVM), (“Anvil” or the “Company”), today announced construction of the Kinsevere Stage II Solvent Extraction Electrowinning (“SX-EW”) plant is essentially complete, with commissioning and ramp-up progressing in accordance with the Company’s expectations. For the June quarter, start-up production of copper cathode totalled 3,376 tonnes.

The revenue and costs related to the production of cathode during the testing and commissioning phase were capitalized against the construction costs of the SX-EW plant in accordance with accounting standards. The Company anticipates that commercial production will be declared in the third quarter of 2011, at which time revenue, costs and depreciation of the Stage II SX-EW plant will be recognized in the income statement.

Importantly, provisional copper cathode assays received during the testing and commissioning phase, from a third party independent laboratory, confirm that the majority of cathode produced during the quarter conforms to LME Grade A chemical specifications.

Group copper production for the June quarter amounted to 5,999 tonnes, comprised of 2,623 tonnes of copper in concentrate and 3,376 tonnes of copper cathode. For the six months ended June 30, 2011, Group copper production totalled 9,315 tonnes, comprised of 5,939 tonnes of copper in concentrate and 3,376 tonnes of copper cathode.

The Kinsevere Stage I Heavy Media Separation (“HMS”) plant operated until June 24, 2011, at which time it was placed on care and maintenance, allowing resources to focus on the commissioning and ramp-up of the SX-EW plant.

The Company generated revenues of $10.4 million from the sale of copper in concentrates and incurred an operating loss of $1.9 million for the June quarter due to lower volume and continued high mining costs in relation to the cutback program in the central pit at Kinsevere in order to prepare for Stage II processing and to provide waste material for the raising of the embankments at the Stage II tailings storage facility. The Company’s net loss after tax for the June quarter was $0.8 million, equivalent to loss per share of $0.01 (basic).

The Company’s consolidated financial statements for the three and six months ended June 30,

2011 and 2010 restated comparatives have been prepared in accordance with IFRS.

Key operating highlights for the second quarter