DIAMOND DRILLING COMMENCES ON AKIE PROPERTY

Vancouver, B.C. – June 27, 2007 – Mantle Resources Inc. (TSX Venture: MTS; Frankfurt: A0F7E1) (“Mantle” or the “Company”) is pleased to announce that the 2007 diamond drill program has commenced on the Akie zinc-lead property located in northeastern British Columbia, approximately 260 kilometers north-northwest of the town of Mackenzie.

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The initial two holes of this program are designed to further test the zinc-lead bearing Cardiac Creek Zone (CCZ). The first hole is a 200 meter step-out to the north from hole A-05-32, completed in 2005, which penetrated the CCZ, intersecting a true width (TW) of 8.44 meters grading 16.16% zinc and 3.95% lead (20.11% combined zinc+lead). A second drill rig is currently being positioned on a recently completed pad located some 600 meters to the south, to test the continuity of this high grade mineralization between holes A-05-30 and A-05-33, also drilled in 2005 (17.25 meters TW grading 18.73% zinc+lead and 8.23 meters TW grading 12.02% combined zinc+lead, respectively). At least five more pads, with capacity for up to 13 drill holes, will be erected on this zone during the next several weeks.

In addition, a drill pad to accommodate a third drill rig has been constructed on the South Zinc soil anomaly, located approximately 3 kilometers south-southeast of the CCZ, to investigate this previously untested feature. The anomaly is defined by the +2000 parts per million zinc-in-soil contour, is some 2 kilometers long by 200 to 500 meters wide and encompasses samples that have also yielded anomalous lead values. It is underlain by folded ‘Gunsteel’ rocks that are proximal to the contact between the shales of the ‘Gunsteel formation’ and limestone, limestone breccia and calcareous siltstone of the Road River Formation, which is the same stratigraphic location as the CCZ, suggesting the CCZ may also be present in this area.

About the 2007 Drill Program

Rodren Drilling Ltd., of West St. Paul, Manitoba, has been retained to provide three identical, high capacity drill rigs for the 2007 program. These will be tasked to achieve three objectives: to carry out sufficient detailed in-fill drilling within and surrounding the area of high grade CCZ mineralization identified in 2005 and 2006 to permit calculation of a NI 43-101 compliant resource estimate; step-out drilling to define the extent of CCZ mineralization and increase the potential tonnage of the deposit; and to test high priority targets on the Akie property and elsewhere within the extensive, +180 kilometer long regional land package controlled by Mantle. It is anticipated that 20 to 25 holes will be completed this year for a total of approximately 15,000 meters of drilling.

About the Akie Property

The Akie zinc-lead property is situated within the southern-most part (Kechika Trough) of the regional 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.

Drilling on the Akie property by Inmet Mining Corporation during the period 1994 to 1996 and Mantle in 2005 and 2006 has identified a significant body of baritic SEDEX mineralization (Cardiac Creek Zone) with an average thickness in excess of 12 meters and an average combined zinc+lead content in excess of 10%. The deposit is hosted by variably siliceous, fine grained clastic rocks of the Middle to Late Devonian ‘Gunsteel formation’ (Earn Group).

Three similar deposits, Cirque, South Cirque and Driftpile (all owned by Teck Cominco), with a combined geologic inventory in excess of 65 million tonnes averaging approximately 10% combined zinc+lead, occur in ‘Gunsteel’ rocks to the northwest of the Akie deposit.

Qualified Person

John R. Fraser, P.Geo. (BC) is the qualified person for the Company and is responsible for the technical information contained in this release.

MANTLE RESOURCES INC.

ON BEHALF OF THE BOARD OF DIRECTORS

“Peeyush Varshney”

Peeyush Varshney, LL.B
President and Director

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

Contact:

Investor Relations
Phone (604) 684-2181
info@mantleresources.com

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