Cornerstone and Thundermin File NI 43-101 Technical Report and Preliminary Economic Assessment for the Little Deer Copper Deposit

MOUNT PEARL, NEWFOUNDLAND -- (Marketwire - Dec. 20, 2011) - Cornerstone Capital Resources Inc. ("Cornerstone") (TSX VENTURE: CGP) (FRANKFURT: GWN) (BERLIN: GWN) (OTCBB: CTNXF) and 50% joint venture partner Thundermin Resources Inc. ("Thundermin") announce that a National Instrument 43-101 ("NI 43-101") compliant Technical Report and Preliminary Economic Assessment ("PEA") for the 100% owned Little Deer Copper Deposit ("Deposit"), which was released on November 1, 2011, has been filed on SEDAR and posted on each company's respective web site. The Deposit is located approximately 10 km north of Springdale in north-central Newfoundland.

The Technical Report and PEA for the Deposit entitled "Technical Report and Preliminary Economic Assessment of the Little Deer Copper Deposit, Newfoundland, Canada, November 1, 2011" was prepared by Mr. Eugene Puritch, P. Eng., President of P&E Mining Consultants Inc. ("P&E"), Dr. Wayne Ewert, P. Geo., Vice President, P&E, Mr. Kirk Rodgers, P. Eng., Mr. James L. Pearson, P. Eng., Mr. David Orava, P. Eng. and Mr. Alfred Hayden, P. Eng., all being independent Qualified Person's in accordance with NI 43-101.

Brooke Macdonald, President of Cornerstone, said "Completion of the Little Deer PEA represents another significant milestone for the project, and indicates that the Deposit has the potential to be developed on an attractive economic basis at current metal prices. During 2012, Cornerstone and Thundermin will continue to advance the project towards the pre-feasibility stage through more advanced technical studies and an infill diamond drilling program designed to upgrade inferred resources to the indicated resources category".


Little Deer Joint Venture

Under the terms of its joint venture agreement with Cornerstone, Thundermin has the right to increase its interest in the Little Deer property to 75% by completing a feasibility study and by arranging 100% of the necessary bank financing required to place the property into commercial production.


About Cornerstone

Cornerstone Capital Resources Inc. is a mineral exploration company based in Mount Pearl, Newfoundland and Labrador, Canada, with a diversified portfolio of projects in Ecuador, Chile, and Atlantic Canada, and a strong technical team that has proven its ability to identify, acquire and advance properties of merit. The company's business model is based on generating exploration projects whose subsequent development is funded primarily through joint venture partnerships. The company is well funded and commitments from JV partners constitute significant validation of the strength of Cornerstone's projects. Further information is available on Cornerstone's website: www.cornerstoneresources.com.


Investors can access and join the following Cornerstone social media channels:

Facebook (http://www.facebook.com/cornerstoneresourcesinc)

Twitter (http://twitter.com/Cornerstone_cgp)

YouTube channel (http://www.youtube.com/user/CornerstoneResource)

Flickr (http://www.flickr.com/photos/cornerstoneresources)

The link to a recent Corporate presentation is:
http://www.cornerstoneresources.com/i/pdf/Presentations_1111_CRICorporate.pdf

The link to a Corporate fact sheet is:
http://www.cornerstoneresources.com/i/pdf/Presentations_1111_FactSheet.pdf

The link to a virtual tour of drilling at the Gama prospect, Shyri concession in Ecuador is:
http://www.youtube.com/watch?v=Ne8XSfgLwIM



Cautionary Notice:

This news release may contain 'Forward-Looking Statements' that involve risks and uncertainties, such as statements of Cornerstone's plans, objectives, strategies, intentions and expectations. The words “potential,“ “anticipate,“ “forecast,“ “believe,“ “estimate,“ “expect,“ “may,“ “project,“ “plan,“ and similar expressions are intended to be among the statements that identify 'Forward-Looking Statements.' Although Cornerstone believes that its expectations reflected in these 'Forward-Looking Statements' are reasonable, such statements may involve unknown risks, uncertainties and other factors disclosed in our regulatory filings, viewed on the SEDAR website at www.sedar.com. For us, uncertainties arise from the behaviour of financial and metals markets, predicting natural geological phenomena and from numerous other matters of national, regional, and global scale, including those of an environmental, climatic, natural, political, economic, business, competitive, or regulatory nature. These uncertainties may cause our actual future results to be materially different than those expressed in our Forward-Looking Statements. Although Cornerstone believes the facts and information contained in this news release to be as correct and current as possible, Cornerstone does not warrant or make any representation as to the accuracy, validity or completeness of any facts or information contained herein and these statements should not be relied upon as representing its views subsequent to the date of this news release. While Cornerstone anticipates that subsequent events may cause its views to change, it expressly disclaims any obligation to update the Forward-Looking Statements contained herein except where outcomes have varied materially from the original statements.


On Behalf of the Board,

Brooke Macdonald
President



Further information is available on the Cornerstone Web site at www.cornerstoneresources.com; via e-mail at communications@crigold.com; or toll free at 1-877-277-8377.

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.