Dia Bras confirms discovery of a large disseminated silver zone at its Cusi property

TORONTO, ONTARIO--(Marketwire - Nov. 15, 2011) - Dia Bras Exploration Inc. (TSX VENTURE:DIB) (

EX-4.11

polymetallic Gambusino Prospector

Max Resource Discovers Copper Mineralization Extending to 400-Metres Depth from Surface, CESAR Copper-Silver Project, NE Colombia - Junior Mining Network

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Dia Bras confirms discovery of a large disseminated silver zone at its Cusi property

Collective Mining Discovers a New High-Grade Zone at the Breccia to Porphyry Contact by Drilling 104.8 Metres Grading 5.56 g/t Gold Equivalent from Surface at Apollo

Summa Silver Discovers Two New High-Grade Silver-Gold Veins

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Summa Silver Identifies Numerous High-Grade Zones