Castillian Resources Corp.
TSX VENTURE : CT

Castillian Resources Corp.

October 10, 2007 07:30 ET

Castillian Intersects 60.87 Meters Grading 0.78% Nickel, 0.50% Copper Including 12.6 Meters Grading 1.19% Nickel, 0.75% Copper and Significant PGM Near Surface at Las Aguilas, Argentina

TORONTO, ONTARIO--(Marketwire - Oct. 10, 2007) - Castillian Resources Corporation (TSX VENTURE:CT) announces additional assay results from drilling at the Las Aguilas Nickel-Copper-PGE deposit (see release dated September 17 for previously released drill results).

Assays for five holes are listed in Table 1 below, including hole LA07-004 which intersected 60.8 meters grading 0.78% Ni, 0.50% copper, 0.05% cobalt including 12.6 meters grading 1.19% Nickel, 0.75% Copper and 0.07% Cobalt (see Table 1 below).

In addition, very interesting results are noted in drill hole LA07-014, which intersected 10.2 meters grading 0.58% nickel, 0.38% copper, 0.03% cobalt and high precious metal values of 0.56 g/t Platinum, 0.54 g/t palladium, and 0.27 g/t gold (1.37 g/t Pt+Pd+Au), which suggests potential for an excellent precious metal by-product credit. Drill hole LA07-013 also intersected two significant intervals with greater than 1.0 g/t Pt+Pd+Au (Table 1).

The ongoing drill program is designed to confirm and expand the Las Aguilas Ni-Cu deposit and provide data required to complete a NI-43-101 compliant resource estimate that includes assays for platinum group elements (PGE) which were not systematically analysed by previous explorers. The occurrence of significant platinum, palladium and gold values in holes LA07-13 and 14 provides evidence that precious metals could provide a significant contribution to the value of the deposit. All mineralized intercepts reported to date occur at depths shallower than 100 meters. Both the Las Aguilas East Deposit and West deposit remain open at depth at this time.

Since early July a total of 38 drill holes totalling 5,990 meters of drilling have been completed, of which assay results have only been received for 14 drill holes. Twenty-four (24) drill holes have assays pending and these will be reported on a continual basis as the data is received. The project is on track and it is expected that a revised, independent, NI 43-101 compliant resource estimate will be completed by year-end.

The Las Aguilas Deposit contains a historical resource of 2.2 million tonnes grading 0.52 % Ni, 0.51 % Cu and 0.04 % Co at a 0.3% Ni cut-off grade. The resource occurs in two sulfide deposits (Las Aguilas East and West Deposits), as defined by Fabricaciones Militares in 1986, which intermittently carried out various geological, geophysical and surface drilling exploration campaigns from 1972 until 1986. This resource estimate has not been confirmed by Castillian and predates the establishment of NI 43-101 standards and is provided for information only. This estimate should not be relied upon.

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 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 values exceed upper 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 exploration managers, Danielle Giovenazzo, Ph.D., PGeo, and Fernando Tallarico, Ph.D., PGeo, both of whom meet the criteria for 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 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. 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.



Table 1: Mineralized intercepts from the Las Aguilas East Deposit. Width in
the table represents core width of the intersection, true width is
expected to be 70% or more of the core width indicated in the
table.

---------------------------------------------------------------------------
Drill Hole From To Width Ni Cu Co Pt Pd Au
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% % % ppm ppm ppm
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----------------------------------------------------------------
LA07-004 44.11 104.98 60.87 0.78 0.50 0.05 0.22 0.19 0.07
---------------------------------------------------------------------------
including 45.34 57.94 12.60 1.19 0.75 0.07 0.36 0.30 0.09
---------------------------------------------------------------------------
including 62.26 69.43 7.17 0.87 0.42 0.05 0.17 0.22 0.04
---------------------------------------------------------------------------
including 71.73 89.90 18.17 0.85 0.56 0.05 0.28 0.21 0.08
---------------------------------------------------------------------------
including 94.90 104.98 10.08 0.65 0.43 0.04 0.18 0.15 0.08
----------------------------------------------------------------
---------------------------------------------------------------------------

---------------------------------------------------------------------------
----------------------------------------
LA07-011 24.78 34.58 9.80 0.32 0.32 0.02 0.24 0.22 0.10
---------------------------------------------------------------------------
43.80 46.75 2.95 0.30 0.18 0.02 0.21 0.20 0.02
---------------------------------------------------------------------------
80.87 81.80 0.93 1.40 0.51 0.06 0.03 1.16 0.06
---------------------------------------------------------------------------
83.15 84.70 1.55 0.42 0.13 0.03 0.23 0.49 0.03
----------------------------------------
---------------------------------------------------------------------------

---------------------------------------------------------------------------
LA07-012 103.30 105.30 2.00 0.33 0.18 0.02 0.32 0.37 0.08
---------------------------------------------------------------------------
111.06 118.28 7.22 0.36 0.18 0.02 0.28 0.27 0.06
---------------------------------------------------------------------------
122.30 131.60 9.30 0.39 0.25 0.02 0.24 0.34 0.12
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148.95 150.12 1.17 0.36 0.20 0.02 0.30 0.23 0.11
---------------------------------------------------------------------------
160.13 162.60 2.47 0.43 0.22 0.03 0.22 0.25 0.03
---------------------------------------------------------------------------

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LA07-013 84.34 98.69 14.35 0.59 0.26 0.02 0.30 0.32 0.11
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including 85.32 87.93 2.61 1.18 0.46 0.04 0.39 0.59 0.13
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including 94.50 98.69 4.19 0.84 0.31 0.03 0.54 0.46 0.23
---------------------------------------------------------------------------
137.25 142.64 5.39 1.18 0.77 0.07 0.26 0.31 0.11
---------------------------------------------------------------------------

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DDH CT-
LA07-014 36.20 37.17 0.97 1.43 3.05 0.05 0.38 0.79 0.42
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44.90 55.10 10.20 0.58 0.38 0.03 0.56 0.54 0.27
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Please note - FIGURE 1: Location Map, Las Aguilas Project is available on the Marketwire website at the following link: http://www.ccnmatthews.com/docs/ct1010a.pdf

Please note - FIGURE 2: Location Map of Las Aguilas drill holes is available on the Marketwire website at the following link: http://www.ccnmatthews.com/docs/ct1010b.pdf

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