Castillian Resources Corp.
TSX VENTURE : CT

Castillian Resources Corp.

March 12, 2008 07:30 ET

Castillian Resources Continues to Expand the Las Aguilas East Nickel-Copper-Platinum-Palladium Deposit, Values of Greater Than 1 g/t Platinum in Five of Seven Holes Reported

TORONTO, ONTARIO--(Marketwire - March 12, 2008) - Castillian Resources Corporation (TSX VENTURE:CT) announces assay results from the final seven diamond drill holes completed in 2007 at the Las Aguilas East nickel-copper-platinum-palladium deposit, San Luis Province, Argentina (Figure 1). Drill hole LA07-063 intersected 7.00 meters grading 1.11% nickel, 0.45% copper, 0.04% cobalt, 0.50 g/t platinum and 0.68 g/t palladium and includes a 1 meter interval grading 2.01 g/t Pt, 0.27 g/t Pd. Platinum values above 1.0 g/t Pt were obtained in samples from 5 of the 7 holes reported. These holes were mainly drilled to test the continuity of the mineralized zone and the extension at depth to the south. The deposit remains open for further expansion at this time (see Figure 2 and 3 - plan map and longitudinal section for locations). Results from the seven drill holes are summarized in Table 1 below.

The Las Aguilas East deposit is associated with olivine pyroxenites and peridotites in a 100 metre thick variably differentiated ultramafic - mafic intrusion. The mineralized zone has now been outlined for more than 200 metres along strike and down to 225 metre vertical depth. The mineralized zone shows a steep plunge to the South and remains open to the south and at depth (see Figure 3). Drill hole intercepts are spaced approximately 25 meters apart (Figure 2 - plan and Figure 3 - long section). A total of 67 holes were completed on the Las Aguilas East and West Deposits in 2007 totalling 11,028 metres. Of these, 31 holes were drilled at the Las Aguilas East deposit totalling 5,817 metres.

Work to complete a preliminary resource estimate for the drilling to date has commenced, however because the deposits remain open a complete resource estimate can not be completed until after the resource delineation is completed and the limits of the deposits have been established. Drilling will resume on the extensions of the West and East deposits as well as a number of regional targets in mid March.

The project is an option joint venture whereby Castillian may earn up to a 65% interest in the Property from Marifil Mines Ltd. (TSX:MFM) (see press release dated March 5, 2007).



Table 1: Mineralized intersections for remaining 2007 drill holes, Las
Aguilas East Deposit.

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Hole # To Core Est. NI Cu Co Pt Pd Au SUM
Length True % % % g/t g/t g/t PGE
Width g/t

CT-LA07-045 164.00 2.90 2.50 0.57 0.19 0.03 0.08 0.32 0.02 0.42
209.56 2.10 2.00 0.80 0.34 0.04 0.06 0.31 0.06 0.42
242.67 6.01 5.20 0.33 0.17 0.03 0.16 0.08 0.02 0.27

CT-LA07-050 207.37 19.66 17.10 0.49 0.39 0.02 0.51 0.42 0.15 1.08
includes 202.10 3.70 3.10 0.65 0.49 0.03 0.79 0.50 0.29 1.58
199.82 1.42 0.64 0.39 0.03 1.50 0.58 0.13 2.21
219.37 5.72 4.65 0.60 0.35 0.03 0.08 0.31 0.02 0.41
includes 214.16 0.51 0.3 0.16 0.02 1.03 0.21 0.02 1.27
240.36 4.68 4.00 0.38 0.26 0.02 0.51 0.57 0.22 1.30

CT-LA07-057 196.00 3.25 3.00 0.62 0.67 0.04 0.39 0.18 0.05 0.62
includes 196.00 0.80 0.51 0.74 0.05 1.52 0.21 0.07 1.80

CT-LA07-059 257.69 1.74 1.50 0.79 1.76 0.08 0.02 2.56 0.03 2.61

CT-LA07-062 202.80 8.20 7.00 0.93 0.42 0.03 0.41 0.59 0.09 1.09
includes 201.25 5.65 4.75 1.11 0.45 0.04 0.50 0.68 0.09 1.27
197.60 1.00 1.24 0.49 0.04 1.58 0.60 0.08 2.26
219.45 4.55 3.80 0.56 0.42 0.02 0.32 0.51 0.12 0.95

CT-LA07-063 32.80 13.45 12.00 0.56 0.29 0.03 0.14 0.14 0.03 0.31
61.75 19.30 18.50 0.92 0.69 0.06 0.19 0.23 0.11 0.52
includes 53.10 7.00 6.10 1.13 0.68 0.07 0.31 0.27 0.11 0.68
48.10 1.00 1.08 0.79 0.07 2.01 0.27 0.15 2.42
77.40 8.40 7.50 0.70 0.50 0.04 0.22 0.18 0.06 0.46

CT-LA07-066 251.70 18.00 16.00 Disseminated sulphides less than0.3% Ni
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Quality Control

The company employs a diligent 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 when in the mineralized zone, and at 1.5 metres or less when in disseminated sulphides ( less than 2% sulphides). Sample preparation is completed at the ALS-Chemex lab preparation lab in Mendoza, Argentina and assayed at ALS-Chemex lab in Vancouver, Canada, using multi-acid digest/ ICP-AES for the base metals and A.A. when Ni and Cu are over the detection limits. Platinum, palladium and gold values are determined by 30 gram fire assay with ICP-AES finish. A blank sample is inserted every 40th sample and standard samples representing a range of grades are inserted at intervals of 1 in 20 to 30 samples.

The quality control and all aspects of the exploration program are supervised by Castillian's exploration manager, Danielle Giovenazzo, Ph.D., PGeo, a qualified person as defined under National Instrument 43-101.

David Gower, PGeo, President and Chief Executive Officer of Castillian, who is a qualified person as defined by NI 43-101, has reviewed this release.

About Castillan 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 kilometres 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. 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 a copy of the "FIGURE 1: Location Map - Las Aguilas Project.", please visit the link below:

http://media3.marketwire.com/docs/ctfig312.pdf

To view a copy of the "Figure 2: Geological Map showing deposits and diamond drilling on the Las Aguilas Deposits, San Luis Province, Argentina.", please visit the link below:

http://media3.marketwire.com/docs/ctfig2312.pdf

To view a copy of the "Figure 3: Vertical longitudinal section showing drill hole intercepts for the Las Aguilas East Deposit, San Luis Province, Argentina.", please visit the link below:

http://media3.marketwire.com/docs/ctfig3312.pdf

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