Cornerstone Capital Resources Inc.

Cornerstone Capital Resources Inc.

December 11, 2007 08:00 ET

Cornerstone and Thundermin Intersect 4.5% Cu Over 8.75 m, Including 7.5% Cu Over 3.75 m, at the Little Deer Copper Deposit

MOUNT PEARL, NEWFOUNDLAND AND LABRADOR--(Marketwire - Dec. 11, 2007) - Cornerstone Capital Resources Inc. (TSX VENTURE:CGP) (PINK SHEETS:CTNXF) (FRANKFURT:GWN) (BERLIN:GWN) and 50% joint venture partner Thundermin Resources Inc. announce that they have intersected high grade copper mineralization assaying 4.5% Cu and 0.03% Co over 8.75 m, including 7.5% Cu and 0.05% Co over 3.75 m within hole LD-07-07 and 2.0% Cu and 0.02% Co over 10.1 m, including 4.2% Cu and 0.03% Co over 2.8 m and 4.2% Cu and 0.04% Co over 1.65 m within hole LD-07-06 in recent drilling on the Little Deer copper deposit (see Table 1 and Longitudinal Section). The Little Deer copper deposit is located approximately 10 km north of Springdale in north-central Newfoundland.

Table 1: Little Deer Assay Results
Hole No. Easting Northing Dip Az From To Interval Cu Co
(m) (m) (o) (o) (m) (m) (m) (%) (%)
LD-07-05 13751 4507 -67.6 328.6 479.85 484.05 4.2 1.1 0.01
(incl) 479.85 481.45 1.6 1.8 0.02
LD-07-06 13751 4507 -71.3 328.0 541.15 551.25 10.1 2.0 0.02
(incl) 541.15 543.95 2.8 4.2 0.03
and 549.6 551.25 1.65 4.2 0.04
LD-07-07 13751 4507 -62.7 328.7 408.8 417.55 8.75 4.5 0.03
(incl) 413.8 417.55 3.75 7.5 0.05

Notes: All intervals recorded above and discussed in this release are core

An $850,000 diamond drilling program consisting of approximately 5,300 m of drilling in 9 holes is currently on-going on the Little Deer copper deposit. Approximately 4,540 m of drilling has been completed to date. The main purpose of this program is to confirm and increase the historic copper resources outlined by wide-spaced historical holes both at depth and along strike in the deposit (details on holes LD-07-01 to LD-07-05 are contained in news releases issued by Cornerstone and Thundermin dated October 30, 2007. This information can also be found on Cornerstone's and Thundermin's respective websites at and or on SEDAR at

Hole LD-07-06 intersected the mineralized horizon on the -520 m elevation approximately 70 m below hole LD-07-05 and between historical holes LD-98-04 and LD-98-08, that assayed 4.3% Cu and 0.03% Co over 9.6 m, and 1.6% Cu and 0.02% Co over 38.7 m, including 2.5% Cu and 0.03% Co over 8.3 m, respectively. Hole LD-07-06 is also 120 m above the deepest intersection on the property in LD-07-02 which assayed 2.5% Cu and 0.03% Co over 5.5 m at a vertical depth of 630 m.

Hole LD-07-07 is a 35 m step-out to the east of historical holes LD-98-02 and LD-98-03 that assayed 3.0% Cu and 0.03% Co over 7.3 m and 3.1% Cu and 0.03% Co over 12.9 m, respectively. Hole LD-07-07 intersected strong pyrrhotite-chalcopyrite-pyrite stringer and massive sulphide mineralization within intensely chloritized and moderately deformed intermediate pillow lavas on the -377 m elevation and is the easternmost hole drilled to date within the deposit at this elevation.

Hole LD-07-08 has been collared to intersect the mineralized horizon at a vertical depth of approximately 550 m and approximately 100 m east of, and 25 m deeper than, LD-07-06 (see Longitudinal Section

Cornerstone and Thundermin are currently formulating plans for a follow-up drill program on the property that would commence in early January 2008 after the holiday break. Details of this program will be released once finalized. It is anticipated that this program will include some wide-spaced drilling to the west of historical hole LD-00-12 which assayed 3.8% Cu over 10.7 m. No deep holes have been drilled in this area to date even though a strong surface DEEPEM geophysical conductor, similar in character to that which occurs in the area of the current drilling, persists for another 700 m to the west of hole LD-00-12. In addition, Cornerstone and Thundermin intend to re-enter some of the deeper historical and current holes and use them as mother holes employing directional drilling techniques.

Cornerstone and Thundermin have the option, on a 50/50 basis with Thundermin as operator, to earn a 100% interest in the Little Deer copper deposit and adjacent property from Weyburn Investments Ltd. ("Weyburn"). Details of the terms of the agreement with Weyburn and the results of historical exploration programs undertaken on the Little Deer copper deposit are contained in news releases issued by Cornerstone and Thundermin dated May 1, June 21 and July 10, 2007. This information can also be found on Cornerstone's and Thundermin's respective websites at and

Andrew Hussey, P.Geo., Project Geologist and Lands Manager, Cornerstone Resources Inc., is responsible for supervising the drilling program for the purposes of National Instrument 43-101. All 2007 drill holes are NQ in size. Specific gravity, rock quality determinations and photographic logging of significant mineralized intersections are systematically performed prior to assaying. The core is logged and the mineralized sections, where appropriate, are sawn in half at a core logging facility in Springdale. Half of the core is submitted for analyses to Eastern Analytical Limited, an independent and qualified assayer located in Springdale, Newfoundland. The remaining half of the core is kept for future reference. Blanks, duplicates and standards are routinely used as part of the assay procedures.

This press release was prepared by Andrew Hussey, P.Geo. and Bruce Mitton, P.Geo., respectively Lands Manager and Exploration Manager Canada for Cornerstone. Both are Qualified Persons as per National Instrument 43-101.

In unrelated events, Cornerstone has acquired from a local prospector several mineral properties comprising 880 mineral claims (220 sq km) on the island of Newfoundland and in Labrador. Cornerstone may earn a 100% interest in these properties by making staged payments totaling $150,000 and issuing 300,000 shares over three years, subject to a 2% Net Smelter Royalty, These claims cover multiple uranium, copper and gold exploration targets.

Cornerstone Capital Resources Inc. is a mineral exploration company with 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. Cornerstone's current and past joint venture partners include Agnico Eagle, Celtic, Cash Minerals, Candente, Coastport, Cogitore, Falconbridge, Inmet, Kermode, Mountain Lake, Moydow, Newmont, Noranda, Phelps Dodge, and Thundermin.

On Behalf of the Board,

Glen H. McKay, President & CEO

Further information is available on the Cornerstone Web site at; via e-mail at; or toll free at 1-877-277-8377.

The common shares of the Company are currently listed on the TSXV in Canada (symbol CGP), the OTC in the USA (symbol CTNXF) and the Frankfurt Stock Exchange (symbol GWN).

The TSX Venture Exchange does not accept responsibility for the adequacy or accuracy of this release.

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