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) (

PJX Resources' Copper-Gold-Silver Mineralization in Sullivan Mining District and DD Property Update - Junior Mining Network

AbraSilver Resource Reports 258 Million Silver-Equivalent Ounces Contained in M&I Categories, Substantially Increasing Diablillos Mineral Resource Estimate - Junior Mining Network

PJX Resources' Copper-Gold-Silver Mineralization in Sullivan Mining District and DD Property Update - Junior Mining Network

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EX-4.11

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PJX Resources' Copper-Gold-Silver Mineralization in Sullivan Mining District and DD Property Update - Junior Mining Network

Complete transition from mantle plume to mantle exhumation on the Central Atlantic Guyana/Suriname margin

Dia Bras intersects disseminated silver mineralization in new zone and approves aggressive exploration/development programme for its Cusi Silver 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