Mantle Resources Inc.
TSX VENTURE : MTS

Mantle Resources Inc.

November 21, 2005 09:30 ET

Mantle Resources Inc.: Exploration Update on the Akie Zinc-Lead Property

VANCOUVER, BRITISH COLUMBIA--(CCNMatthews - Nov. 21, 2005) - Mantle Resources Inc. (TSX VENTURE:MTS)(FWB:A0F7E1)(the Company) is pleased to provide an update on the ongoing exploration program at the Akie zinc-lead property located in northeastern British Columbia, approximately 280 kilometers north-northeast of the town of Mackenzie.

Diamond Drilling:

Drilling commenced on October 16 and, to the morning of November 20, a total of 1547.32 meters have been completed as follows:

Hole:A-05-30 (Az: 050 degrees; Dip:-78 degrees; Grid: 3300S/0090W; Elev: 1497m; EOH: 598.70m): A mineralized zone was encountered within the 'Gunsteel formation' from 534.50 meters to 567.30 meters, a core length of 32.80 meters. Initial calculations suggest that the true width of the zone is 72% of this, or 23.62 meters.

Hole:A-05-31 (Az: 060 degrees; Dip:-70 degrees; Grid: 3100S/0125W; Elev: 1539m; EOH: 133.00 m): This hole was abandoned early when the rods became stuck in a fault zone.

Hole:A-05-32 (Az: 055 degrees; Dip:-68 degrees; Grid: 3100S/0125W; Elev: 1539m; EOH: 630.00 m): A mineralized zone similar to that observed in Hole:A-05-30 was intersected within the 'Gunsteel formation' between 547.50 and 603.00 meters, a core length of 55.50 meters. The hole was terminated in shale matrix sedimentary gravel breccia, possibly Road River Group, at a depth of 630.00 meters.

Hole:A-05-33 (Az: 059 degrees; Dip:-78.9 degrees; Grid: 3500S/0100W; Elev: 1404m): As of the morning of November 20, drilling of this hole was continuing and was at a depth of 185.62 meters.

The drilling (HQ or NQ2 core) is being carried out by Hy-Tech Drilling Ltd., Smithers, B.C., as part of a planned 2,000 meter program. Directional surveys, using a Reflex single-shot instrument, are performed approximately every 30 meters down the hole.

Discussion:

A total of 28 samples of split core from the section between 531.75 and 570.40 meters in Hole:A-05-30 have been analysed for zinc, lead and silver. The assay pulps from these are currently being subjected to confirmatory analyses at a second laboratory. Results will be released when the Company has had an opportunity to review the information received from both laboratories.

The core from Hole:A-05-32 is presently in the process of being logged and sampled. Drill activities are expected to continue as long as winter conditions permit.

Assay Samples and Assay Procedures:

All mineralized core is split by diamond saw and sampled, with a maximum of 1.5 meters of core collected for each sample. These are bagged and shipped in secure containers to Acme Analytical Laboratories Ltd in Vancouver for analysis for zinc, lead and silver by aqua regia digestion followed by ICP analysis (Group 7A-ICP Multi-Element Assay). Where necessary, samples will be submitted to Global Discovery Labs in Vancouver for check analyses using a similar methodology.

Qualified Person:

Exploration activities reported on in this release have been designed and supervised by Mr. Bernard Dewonck, P.Geo. (BC) and Mr. Marcus Vanwermeskerken, P.Geo.(BC), both Qualified Persons as defined by National Instrument 43-101.

John R. Fraser, P.Geo.(BC), is the Company's Qualified Person and is responsible for the information contained in this release.

About the Akie Property:

The Akie property, which has been optioned from Ecstall Mining Corporation, comprises a total of 256 claim units, in 22 contiguous mineral claims, which encompass some 5,400 hectares situated in the Omineca Mining Division of British Columbia. Between 1992 and 1996, approximately $5.4-million was spent exploring the property, including approximately 13,000 metres of diamond drilling.

Variably siliceous, bluish-grey weathering, fine-grained clastic rocks of the Middle to Late Devonian 'Gunsteel formation' host a sheet-like body of laminated to massive pyrite and barite, with local finely laminated bands of sphalerite and galena, that has a strike length of 1,600 meters, a dip extent of at least 800 meters and a true width of up to 30 meters. Within this, Inmet Mining Corporation, the previous operator, identified an inferred resource, based on four widely spaced drill holes, of 13 million tonnes grading 8.52% zinc, 1.47% lead and 13.24 grams silver/tonne over a true width of 6.3 meters.

Note: This historical inferred resource estimate was prepared before the implementation of National Instrument 43-101. The Company's Qualified Person has not reviewed the estimate but believes it to be reliable and relevant as it was calculated by Inmet Mining Corporation, a respected international mining concern, using simple polygonal blocks. However, this estimate should be treated as a historical resource estimate until additional drill hole information is available.

The Akie deposit is open to expansion in tonnage and grade both along strike and down-dip.

For further information regarding the Akie property, the reader is referred to a NI 43-101 report, titled Geological Report on the Akie Property, dated October 24, 2005, by D.G. MacIntyre, Ph. D., P.Geo.(BC)., which is filed on SEDAR at www.sedar.com.

ON BEHALF OF THE BOARD OF DIRECTORS

MANTLE RESOURCES INC.

PEEYUSH VARSHNEY

The TSX Venture Exchange has neither approved nor disapproved the contents of this press release.

Contact Information