Tosca Mining Corporation Renegotiates Its Red Hills Option Agreement

Tosca Mining Corporation, (TSQ.V; TSMNF.US; TQ4.FSE) announces that it has successfully renegotiated its 5 year option agreement to purchasethe Red Hills Molybdenum/Copper project located in Presidio County, Texas.

Under the renegotiated terms, Tosca has reduced its annual option payment to the vendors down from $800,000 US to $300,000 US in 2012 and each of the subsequent two years. This defers $1,500,000 US in payments until, May 01, 2015, or a production decision whichever comes first, which will trigger a final payment of $2,400,000. As part of the new terms, Tosca will increase the number of shares issued to the vendorsfrom 2,100,000 to 2,800,000 over the length of the option agreement in annual increments of 600,000 shares.

'These renegotiated terms allow the Company to redirect working capitalto advance its Red Hills project. We wish to thank the vendors for recognizing the difficulties of the current market and working with us, 'states, Ron Shenton, President.

On February 22, 2012, Tosca released the first ever independent and NI43-101 compliant resource report on its Red Hills project. The study by Mine Development Associates of Reno Nevada shows that Red Hills is a large porphyry deposit with an indicated resource, at 0.05% MoEq cutoff grade, of 21.7 million tons grading 0.09% MoEq, and an inferred resource at the same cut off grade of 0.05% MoEq of 149.8 million tons grading 0.073% MoEq.

At a 0.05% MoEq cutoff the contained molybdenum is 26.6 million lbs in the indicated category and 206.6 million lbs in the inferred category.The contained copper is 68.6 million lbs in the indicated category and 68.2 million lbs. in the inferred category. The deposit is open at depth and to the south.

On April 27, Molybdenum was $14.28 per pound and on April 30, 2012 spot Copper was $3.83 per pound according to metalprices.com.

The terms of the renegotiated deal are subject to the approval of the TSX Venture Exchange.


On Behalf of the board of directors,

'Ron Shenton'



For further information, please visit the company's website at www.toscamining.com or call 604-687-6562. Email info@toscamining.com

Neither TSX Venture Exchange nor its Regulation Services Provider (as that term is defined in the policies of the TSX Venture Exchange) accepts responsibility for the adequacy or accuracy of this release.

Statements in this press release, other than purely historical information, including statements relating to the Company′s future plans and objectives or expected results, may include forward-looking statements. Forward-looking statements are based on numerous assumptions and are subject to all of the risks and uncertainties inherent in resource exploration and development. As a result, actual results mayvary materially from those described in the forward-looking statements.


Tosca Mining Corporation
Ron Shenton
604-687-6562
info@toscamining.com
www.toscamining.com