Castle Resources Inc.
TSX VENTURE : CRI

September 20, 2011 06:00 ET

Castle Resources Intersects 18 Meters of 1.90% Cu at Granduc Copper Project

- GD11-25 intersects thickest high-grade copper mineralization to date on the Main Zone of the Granduc Copper Project

TORONTO, ONTARIO--(Marketwire - Sept. 20, 2011) - Castle Resources Inc. (TSX VENTURE:CRI) ("Castle" or the "Company") is pleased to announce its third positive set of drill core assay results from the ongoing 35,000 meter surface exploration program at the Granduc Copper Project located near Stewart, B.C.

"These impressive Main Zone drill results reveal that copper mineralization beneath the historic mine workings is very thick and carries excellent copper grade," stated Mr. Mike Sylvestre, President & CEO of Castle Resources. "It is clear we have intercepted a major copper rich section of the Main Zone based on assays from holes GD11-21 and GD11-25. This represents one of the largest zones of high grade copper mineralization intersected to date and will likely add significant tonnage to our updated NI 43-101 resource estimate expected later this year."

Highlights:

Hole Start
(m)
End
(m)
Width
(m)
% Cu Au
(g/t)
Ag
(g/t)
%Fe
GD11-21 351 373 22 1.38 0.17 9.78 18.28
inc 363 373 10 2.07 0.23 14.2 16.53
GD11-25 412 430 18 1.90 0.26 19.28 11.74

Castle has now completed over 55 holes of its 60+ hole step out and expansion drilling program and aims to complete the surface program at the Granduc by early October. There are currently 5 drills turning at site with a focus on testing potential down dip zones identified by SRK Consulting as 'exploration potential' and targeting potential non-compliant NI 43-101 historic copper resources down to sea level (see SEDAR July 4, 2010). In addition, a large percentage of this year's drilling has been focused on defining the potential copper mineralization in the South Zone and as previously press released drill core assays results clearly show high grade mineralization extending over 600 meters on strike and to the south of the Main Zone (see press release dated July 27, 2011) and 600 meters down dip to sea level (see press release dated Sept 8, 2011) It is increasingly evident that Granduc mineralization remains open at depth beneath sea level and open along strike to the south, beyond Castle's most southern step-out hole.

Granduc Drilling Results - 2011 Surface Program

Complete Assays for GD11-18, GD11-21, GD11-23 and GD11-25
Note: all widths are downhole thickness,
core intersection thicknesses may not
represent true thickness
Hole Start
(m)
End
(m)
Width
(m)
% Cu Au
(g/t)
Ag
(g/t)
%Fe
Complete Assays
GD11-18 500 506.6 6.6 0.78 0.07 4.17 6.97
556 560.14 4.14 0.71 0.11 7.47 15.36
571.4 573.66 2.26 1.66 0.20 6.78 9.59
Complete Assays
GD11-21 312 337 25 0.88 0.12 6.75 9.78
inc 327 337 10 1.28 0.16 6.20 10.70
and 351 373 22 1.38 0.17 9.78 18.28
inc 363 373 10 2.07 0.23 14.20 16.53
inc 370 373 3 3.17 0.40 24.40 22.25
and 384 390 6 0.81 0.12 12.67 22.14
and 405 409 4 2.75 0.53 16.90 9.64
Complete Assays
GD11-23 544 554 10 0.50 0.14 7.96 10.57
Complete Assays
GD11-25 282 307 25 0.71 0.12 4.26 14.08
inc 298 304 6 1.02 0.15 5.68 11.74
and 412 430 18 1.90 0.26 19.28 11.74

Brad Leonard, P. Geo., Castle's Exploration Manager, is the Qualified Person responsible for the scientific and technical work (as defined under National Instrument 43-101) discussed in this press release, and has reviewed this press release. Castle implemented a QA/QC protocol for all its exploration and diamond drilling program on the Granduc.

About Castle Resources

Castle is a Toronto-based junior mineral development company focusing on high-quality, advanced projects. Management's goal is to continue the redevelopment of the 100% owned past producing Granduc Copper Mine and begin new exploration activities; as well, management is advancing the Elmtree Gold Project in New Brunswick toward feasibility in 2011. Castle currently has $6 million in its treasury and has issued and outstanding shares of 106 million. For more information please visit the Castle Resources' website at www.castleresources.com.

Disclaimer

Certain statements contained in this news release may contain forward-looking information within the meaning of Canadian securities laws. Such forward-looking information is identified by words such as "estimates", "intends", "expects", "believes", "may", "will" and include, without limitation, statements regarding the company's plan of business operations (including plans for progressing assets), estimates regarding mineral resources, projections regarding mineralization and projected expenditures. There can be no assurance that such statements will prove to be accurate; actual results and future events could differ materially from such statements. Factors that could cause actual results to differ materially include, among others, metal prices, risks inherent in the mining industry, financing risks, labour risks, uncertainty of mineral resource estimates, equipment and supply risks, title disputes, regulatory risks and environmental concerns. Most of these factors are outside the control of the company. Investors are cautioned not to put undue reliance on forward-looking information. Except as otherwise required by applicable securities statutes or regulation, the company expressly disclaims any intent or obligation to update publicly forward-looking information, whether as a result of new information, future events or otherwise.

This news release does not constitute an offer to sell or solicitation of an offer to sell any of the securities in the United States. The securities have not been and will not be registered under the United States Securities Act of 1933, as amended (the "U.S. Securities Act") or any state securities laws and may not be offered or sold within the United States or to a U.S. Person unless registered under the U.S. Securities Act and applicable state securities laws or an exemption from such registration is available.

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