Castillian Resources Corp.
TSX VENTURE : CT

Castillian Resources Corp.

September 19, 2007 07:30 ET

Castillian Resources Has Near Surface Intersection of 40.9 Meters Grading 0.88% Nickel and 0.26% Copper at the Mangabal South Nickel-Copper Deposit, Brazil

Intersection Includes 10.9 Meters Grading 1.50% Nickel and 0.53% Copper

TORONTO, ONTARIO--(Marketwire - Sept. 19, 2007) - Castillian Resources Corporation (Castillian) (TSX VENTURE:CT) announces that drill hole CRMS-07-029 has intersected 40.9 meters grading 0.88% nickel and 0.26% copper, and 0.02% cobalt at the Mangabal South Deposit. This intersection includes a 10.9 meter interval grading 1.50% nickel, 0.53% copper and 0.04% cobalt. This intersection occurs at a shallow vertical depth of approximately 105 meters below surface.

Castillian has also awarded a contract to Geoexplore Consulting Services of Belo Horizonte, Brazil to complete an independent NI 43-101 compliant resource estimate for the Mangabal South Nickel-Copper Deposit, marking the commencement of the economic evaluation of the deposit. On the basis of this resource estimate further studies including metallurgical, environmental and engineering studies will be initiated in the coming months to ensure efficient evaluation of this resource.

Results for five recently drilled holes from the Mangabal South Deposit including hole CRMS-07-029 are summarized in the following table (see releases dated May 16, April 24, July 4, and July 24, 2007 for previously released drill results):



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ESTI-
MATED
TRUE Ni Cu Co
HOLE # Azim Dip Depth FROM TO WIDTH WIDTH % % %
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CRMS-07-022 315 45 170.45 97.85 108.5 10.65 10.65 0.49 0.21 0.01
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incl 106.20 108.10 1.90 1.90 1.49 0.56 0.03
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CRMS-07-026 315 45 96.1 36.40 44.45 8.05 8.05 0.79 0.70 0.02
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incl 41.80 44.45 2.65 2.65 1.84 1.25 0.04
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CRMS-07-028 360 90 70.05 24.15 30.4 6.25 3.75 1.12 0.45 0.03
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incl 26 29.6 3.6 2.16 1.47 0.54 0.04
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CRMS-07-029 315 45 153.5 90.35 131.25 40.9 40.9 0.88 0.26 0.02
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incl 103.85 131.25 27.4 27.4 0.95 0.39 0.03
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incl 103.85 120.6 16.75 16.75 1.30 0.50 0.04
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incl 109.7 120.6 10.9 10.9 1.50 0.53 0.04
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incl 113.4 119.95 6.55 6.55 1.79 0.48 0.05
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CRMS-07-034 315 45 99.40 39.55 45.05 5.50 5.50 1.86 0.35 0.06
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incl 39.55 43.05 3.50 3.50 1.93 0.42 0.07
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See Figure 1 for pierce point locations. These drill holes are completed on
a 45 degree angle of inclination and as such the core widths of the
intersections are expected to be close to the true widths based on the
current interpretation of the geology.


Assays are currently pending for twenty-five additional drill holes on the Mangabal South deposit and will be reported as results become available. The deposit remains open along the plunge to the southwest and has been extended at least an additional 50 meters in that direction by recent drilling. Turn around time at laboratories due to high volumes of samples has increased significantly, which has caused a large number of drill holes to have assays pending. Castillian continues with four drill rigs on the Project.

Quality Control

The company employs a QA/QC protocol on all aspects of the analytical procedures. Core samples are sawn and one half of the NQ core is restored to the core box for future reference and one half of the core is sent for analysis. Samples are taken in approx. 1.0-metre intervals or less. Sample preparation is completed at the SGS Lakefield preparation lab in Goiania, Brazil and assayed at ALS-Chemex lab in Vancouver, Canada or SGS Lakefield Lab in Belo Horizonte, Brazil using multi-acid digest/ ICP-AES and AAS techniques. A blank sample is inserted every 40th sample and standard samples representing a range of grades are inserted at intervals of 1 in 20 samples. Five percent of pulps are re-analyzed at SGS Laboratory Services in Belo Horizonte, Brazil or ALS Chemex Lab in Vancouver, Canada. This is the same QA/QC protocol that was employed by Falconbridge (now Xstrata Nickel) in operating the project.

The Quality Control and all aspects of the exploration program is supervised by Castillian Exploration Manager, Joel Hrominchuk, P.Geo., who is a Qualified Person as defined under National Instrument 43-101. Mr. Hrominchuk has reviewed the scientific and technical information in this press release.

About Castillian Resources

Castillian Resources Corp. is a Canadian mineral exploration company listed on the TSX Venture Exchange under the symbol "CT" with approximately 87.8 million shares issued and outstanding. Castillian has partnered with Xstrata Nickel to explore the approximately 153,000 ha Mangabal nickel-copper project in Brazil. The company is earning an interest in the Las Aguilas Nickel-Copper-PGM Project in Argentina from Marifil Mines Ltd. and has the right to purchase a 100% interest in the Kagera Project which comprises over 1,600 square kilometers in the highly mineralized Kabanga Nickel Belt in Tanzania and rights to acquire 90% of the Pederson deposit, an advanced gold exploration project in Bolivia which is currently under force majeure.

Forward Looking Statements

This document may contain or refer to forward looking information based on current expectations, including, but not limited to, mineralization projections, estimates regarding the timing for resource modeling and the preparation of a 43-101 compliant technical report and the impact of additional drills on the progress of the program. Forward-looking statements are subject to significant risks and uncertainties, and other factors that could cause actual results to differ materially from expected results. These forward-looking statements are made as of the date hereof and we assume no responsibility to update or revise them to reflect new events or circumstances.

To view Figure 1 please visit the following link: http://www.ccnmatthews.com/docs/mangabalsouth.pdf

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

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