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Significant Stepout: 11.32 Metres Grading 13.83% Zinc, 3.24% Lead, 21.11 G/T Silverassay Results For Hole: A-07-42, Akie Property, B.C.

Vancouver, B.C. – October 4, 2007 – Mantle Resources Inc. (TSX Venture: MTS; Frankfurt: AOF7E1) (the “Company”), is pleased to report additional assay results from the 2007 exploration program currently underway at its 100% owned Akie zinc-lead property, located in northeastern British Columbia, approximately 260 kilometers north-northwest of the town of Mackenzie.

Expansion of Main Cardiac Creek Zone - Intercept Delivers 17.07% Zinc+Lead Over 11.32 Metres

Hole: A-07-42. (Az: 060^o; Dip: -80^o; Grid: 2875S/0200W; Elev: 1602 metres; End of hole:712.02 metres)

These compiled assay values have been derived from analytical data provided by Acme Analytical Laboratories Ltd., Vancouver, B.C. (Acme).  The true width (TW) of the mineralization is estimated to be approximately 76% of the core interval, but this is subject to revision. This high grade intercept represents a significant step-out, approximately 175 metres, along plunge to the north of the high grade mineralization encountered in hole A-05-32, completed in 2005, which yielded 26.7 metres (TW: 19.6 meters) grading 11.98% zinc, 2.73% lead and 22.23 g/t silver.  The nearest intercept on section with A-07-42 is located some 180 metres up dip, in A-06-38, drilled in 2006, and comprises 13.85 meters (TW: 11.76 meters) of 8.99% zinc, 1.68% lead and 16.57 g/t silver.  This mineralized horizon, referred to as the Main Cardiac Creek Zone, occurs at the base of the ‘Gunsteel’ formation.

In addition to the Main Cardiac Creek Zone mineralization reported above, Hole A-07-42 also intersected an upper zone of mineralization (“hanging wall zone”) of significance: 632.8 to 658.5 metres grading 3.87% zinc, 0.58% lead and 4.42 g/t silver.  This zone, while not the main target of Mantle’s drilling, has been noted in other holes and appears to be thicker in this area of the deposit.  Mantle believes that this horizon could become a specific target of interest.

“We are very pleased with the results from the second hole of our expanded 2007 program,” commented Mr. Jim Mustard, President of Mantle Resources.  “The results provide further support to our belief in the exploration potential for the Main Cardiac Creek Zone: hole A-07-42 is 500 metres on strike from hole A-07-43 (27.6 metres grading 15.2% zinc+lead).  The area along plunge from A-07-42 is now open and its definition will, of course, require further drilling.  The expanding Main Cardiac Creek mineralized zone will continue to be the focus of our drilling, but as seen in the hanging wall zone, and untested targets elsewhere on the property, exploration potential remains very high.”

Assay Samples and Procedures

All core selected for analysis is split by diamond saw and sampled, with a maximum length of 1.5 meters of core in each sample.  These are placed in plastic bags, shipped in secure containers to Acme Analytical Laboratories Ltd., Vancouver, B.C., and there subjected to aqua regia digestion followed by ICP-ES and ICP-MS analysis (Acme Group 7AX Multi-Element Assay) to determine zinc, lead and silver content.  Standards and blanks are inserted into the assay stream at a rate of about one of each for every 25 core samples.  Check assays are routinely carried out by Global Discovery Labs, also in Vancouver , employing aqua regia digestion followed by atomic absorption finish (Group 4).

About the Akie Property

The Akie zinc-lead property is situated within the southern-most part (Kechika Trough) of the regionally extensive Paleozoic Selwyn Basin, one of the most prolific sedimentary basins in the world for the occurrence of SEDEX zinc-lead-silver and stratiform barite deposits.