Mindoro Resources Reports the Results of Drilling Gold Feeder-Structures at Archangel

Mindoro Resources Ltd (TSXV: MIO; ASX: MDO; Frankfurt: WKN 906167) today announced the results of the second and third drill holes from the Archangel drilling program designed to test interpreted high-grade "feeder" structures underlying the near-surface Archangel gold and silver resources, Batangas Province, Philippines. This completed the three hole program.

The second drill hole, PL-189, cut a near surface stockwork zone and produced an intersection of 12.3m @ 2.58 g/t gold and 18.7 g/t silver from 16.7m down-hole depth, including a high-grade vein intersection of 1.75m @ 13.5 g/t gold and 60.6 g/t silver from 26.25m. The third drill hole, PL-190, intersected a 48m down-hole thickness of hydrothermal breccia mineralisation from 1.9m. Significant intersections include 34.3m of 1.01 g/t gold and 14.1 g/t silver from 13.8m down-hole depth, including 2.7m of 5.55 g/t gold and 74.7 g/t silver from 44.4m. Further down-hole, it intersected 10.45m of 3.09 g/t gold and 2.09 g/t silver from 69.4m, including a high-grade vein intersection of 0.60m of 46.0 g/t gold and 22.5 g/t silver from 69.4m depth.

Mindoro President and CEO Jon Dugdale commented, "Having gained critical information as to the orientation and geometry of steeply-dipping hydrothermal breccia "feeder" structures at Archangel we can now plan our next drilling phase that will aim to infill drill these structures and build the resource base".

Final results of the three hole program are tabulated below:

PL-190 was drilled in a different orientation targeting northwest-southeast trending structures on the basis of the information gathered from PL-188. PL-190 subsequently intersected a 48m down-hole thickness of hydrothermal breccia mineralisation from 1.9m and it appears that this drill direction may be optimal for intersecting the steeply-dipping hydrothermal breccia "feeder" structure phase of mineralization, including discrete high-grade veins that may represent underground mining targets.

Drill core samples are prepared and analysed by Intertek Testing Services Philippines, Inc. laboratories. Gold assays were by 50 gm fire assay fusion; where gold assays greater than 3 ppm were by gravimetric finish and by AAS where the gold values were less than that threshold. Silver and copper were determined by ICP after a four acid digest. Normal Quality Control and Quality Assurance procedures are being carried out, using a system of duplicate, standard and blank samples.

Mindoro maintains a QA/QC program whereby standard samples and blanks are inserted into each batch of samples to ensure quality control.

The location of the drill holes are shown in plan at: http://www.mindoro.com/i/pdf/PL-DRILLING2011_Results.pdf

About Archangel:

At Archangel, Mindoro has outlined a cluster of epithermal gold-silver and porphyry copper-gold prospects along a 6km x 2km zone of gold anomalies, extensive porphyry related alteration and strong chargeability induced-polarization geophysical anomalies at depth (map available on Mindoro's website).

In March 2010, Mindoro released NI 43-101-compliant resource estimates for a low-intermediate sulphidation gold zone at Kay Tanda including a Measured and Indicated: 9.879 million tonnes at 1.06 g/t gold and 4.50 g/t silver containing 337,500 ounces gold and 1,427,800 ounces silver; and Inferred: 3.74 million tonnes at 0.81 g/t gold and 1.75 g/t silver containing 97,200 ounces gold and 210,800 ounces silver.

Drilling below the shallow resource encountered at least five steeply-dipping, higher-grade "feeder" zones including intercepts of 61m at 5.12 g/t gold from 3m in KTDH-20, 64m at 3.45 g/t gold from 96m in KTRC-55 and 26m at 4.03 g/t gold and 179.2 g/t silver from surface in PLRC-23. These structures are not included in the resource estimates above due to insufficient drill definition. The drilling program recently completed has defined the geometry of the feeder structures, prior to definition drilling to define further resources.

Tony Climie, P.Geo. a qualified person as defined by National Instrument 43-101, is responsible for the technical information provided in this release.

On behalf of the Board of Directors

Jon Dugdale,
President and CEO