TORONTO, ONTARIO -- Castillian Resources Corp. ("Castillian" or the "Company") (TSX VENTURE:CT) is pleased to report results from an additional seven diamond drill holes that tested the downdip and along strike extension of the Pit Zone, a near surface gold mineralized zone immediately southwest of the former open pit mine at its Hope Brook gold property. Previous drilling confirmed that the Pit Zone extends at least 500 metres along strike (See Press Release dated April 5, 2011). This new drilling confirms gold mineralization to a depth of 100 metres.

Significant results are given in Table 1 below. Highlights are as follows:

• 1.26 g Au/t and 0.10% Cu over 18.6m core length (14.0m true width) from 38.7m to 57.3m including 2.59g Au/t and 0.27%Cu over 6.1m core length (4.6m true width) in hole HB-11-018;

• 1.03 g Au/t over 31.5m core length (23.6m true width) from 90.3m to 121.8m including 2.49 g Au/t over 8.4m core length (6.3m true width) in hole HB11-024; and

• 1.60 g Au/t and 0.15%Cu over 16.9m core length (12.7m true width) from 118.0m to 134.9m including 3.48g Au/t and 0.37%Cu over 6.2m core length (4.7m true width) in hole HB11-029

"We are continuing to receive positive drill results from the Pit Zone. A number of the holes have multiple zones of gold mineralization and several have significant copper mineralization. Drilling with the track drill is continuing to test the Pit Zone further along strike and downdip," Dr. Bill Pearson, P.Geo., President & CEO of Castillian, commented. "With improved weather conditions, we have also resumed surface and bore hole induced polarization surveys which are very effective at outlining the favourable silicified zones. In addition, we are continuing to upgrade and improve our geological interpretation of the mineralized zones to better predict both extensions to known zones and to define new targets."

To date 25 diamond drill holes totaling 4,166 metres have been completed across the 500m strike length of the Pit Zone, as shown in Figures 1 and 2, vertical longitudinal sections. Figure 3 shows the collar locations of the drill holes on an aerial photograph of the open pit area. All holes have intersected significant gold values with several holes also having copper mineralization. A number of holes also have multiple zones of gold mineralization as shown in Table 1. Interpretation of airborne and ground geophysical data indicates that the silicified zone hosting the gold mineralization extends at least another 800m further along strike to the southwest. Responses for both resistivity indicating silicification and chargeability indicating the presence of sulphides along this additional potential extension are very comparable to responses across the 500m long section already drilled. Drilling is continuing to test the Pit Zone further along strike and downdip.

Four additional holes have been completed to further test the Hanging Wall and Main Zones as shown in Figure 1, set out below. Results for these holes are pending. Since the start of drilling in September 2010, a total of 36 holes totaling 10,267 metres have been completed at Hope Brook on all target zones, with a further 15,000m planned for the balance of 2011 to bring the overall planned drilling to 25,000m.

SAMPLING, ASSAYING AND QUALITY CONTROL

The core (NQ 47.6 mm and BTW 42.0 mm) is logged, photographed and then sawn in half with one-half sent to the laboratory for analysis and the other half retained and stored on site. All core samples were prepared and assayed at ALS Chemex with sample preparation done in Sudbury and analytical work in Vancouver. All locations of ALS Chemex are ISO 9001:2000 certified. The entire sample received is weighed and crushed to ≥ 70% passing 2mm (10 mesh); a sample split of up to 1000g is then pulverized to ≥ 85% passing 75 microns (200 mesh) to produce a homogenized sample. A 50g aliquot is used for fire assaying with an atomic absorption (AA) finish to determine gold concentration. Internal quality control includes the use of blanks, duplicates and standards in every batch of samples. The Company also conducts internal check assaying using certified external reference standards and blanks. Regular external check assays are performed at a second certified Canadian commercial laboratory. Castillian also inserts external reference standards as well as blank granite drill core in each sample batch as a further external check.

Mr. Dan Lee, P.Geo. Chief Geologist and Project Manager for Hope Brook and Dr. Bill Pearson, P.Geo., President and CEO of Castillian, both of whom are qualified persons as defined by National Instrument 43-101 ("NI 43-101"), have reviewed and approved the scientific and technical content of this press release.

ABOUT CASTILLIAN

Castillian Resources Corp. is a Canadian mineral exploration company listed on the TSX Venture Exchange under the symbol "CT" which has gold and base metal properties in Canada and South America. Castillian's flag ship property is the Hope Brook Gold Project located in southwestern Newfoundland where it is carrying out a 25,000 metre diamond drill program.

Cautionary Note Regarding Forward-looking Information

This press release contains "forward-looking information" within the meaning of applicable Canadian securities legislation. Forward-looking information includes, but is not limited to, statements with respect to the diamond drill program at the Hope Brook project and its anticipated results, the exploration program and anticipating timing and costs with respect to the exploration program and the completion of a NI 43-101 compliant resource estimate, future financial or operating performance of the Company, its subsidiaries and its projects, statements regarding exploration prospects, the identification of mineral reserves and resources, exploration expenditures, timing of future exploration, requirements for additional capital,. Generally, forward-looking information can be identified by the use of forward-looking terminology such as "plans", "expects" or "does not expect", "is expected", "budget", "scheduled", "estimates", "forecasts", "intends", "anticipates" or "does not anticipate", or "believes", or variations of such words and phrases or state that certain actions, events or results "may", "could", "would", "might" or "will be taken", "occur" or "be achieved". Forward-looking information is subject to known and unknown risks, uncertainties and other factors that may cause the actual results, level of activity, performance or achievements of the Company to be materially different from those expressed or implied by such forward-looking information, including but not limited to: general business, economic, competitive, political and social uncertainties; the actual results of current exploration activities; future prices of mineral prices; failure of plant, equipment or processes to operate as anticipated; accidents, labour disputes and shortages and other risks of the mining industry. Although the Company has attempted to identify important factors that could cause actual results to differ materially from those contained in forward-looking information, there may be other factors that cause results not to be as anticipated, estimated or intended. There can be no assurance that such information will prove to be accurate, as actual results and future events could differ materially from those anticipated in such statements. Accordingly, readers should not place undue reliance on forward-looking information. The Company does not undertake to update any forward-looking information, except in accordance with applicable securities laws.

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