New results confirm kimberlites on Dumont's Attawapiskat Property, near Victor Diamond Mine, Ontario

    DUMONT NICKEL INC. (DNI : TSX-Ven, DG7 : Frankfurt)

    TORONTO, June 30 /CNW/ - With reference to press release of June 22,
2009, by Metalex Ventures Ltd. (MTX:TSX-Ven), and related release of even date
by Arctic Star Diamond Corp. (ADD: TSX-Ven), Dumont Nickel Inc. (DNI:TSX-Ven,
DG7:FSE) is pleased to announce that, based on new analytical results obtained
by Metalex from recent work completed by it on prior drill core from claims
situated approximately seven kilometres south of the Victor diamond mine,
Attawapiskat region, Ontario, Metalex has concluded that eight of the nine
drill holes tested intersected "the margins or upper levels of buried
kimberlite intrusive complexes". Metalex further concluded that the new
results "indicate that a new group of previously unconfirmed kimberlites have
been discovered in the area".
    After requesting clarification, Dumont has just received verbal
confirmation from Metalex that some of the holes are located on Dumont's
Attawapiskat diamond Property claims, which are being explored by Metalex and
its partners.
    Dumont's Attawapiskat Property is under option to Kel-Ex Development Ltd,
a private corporation under Mr.C.Fipke's control. The Property is being
explored by Kel-Ex, at no cost to Dumont, under separate arrangements with
Metalex, Arctic Star and Big Red Diamond Corp. (DIA:TSX-Ven). Dumont retains a
10% carried interest to production and a 5% interest in certain surrounding
areas if acquired by Kel-Ex.
    The June 22, 2009, announcement also indicates that Metalex is
re-assessing other drill holes from the area which intersected similar
material, and that an additional thirteen possible kimberlite intersections
from thirteen separate drill holes have been selected for kimberlite indicator
mineral and diamond recovery tests.
    Further results and details will be announced when they are made
available.

    Neither the TSX Venture Exchange nor its Regulation Services Provider (as
    that term is defined in the policies of the TSX Venture Exchange) accepts
    responsibility for the adequacy or accuracy of this release.

    DNI - TSX Venture
    DG7 - Frankfurt
    Issued: 155,048,101

    %SEDAR: 00010711E

For further information: Dumont Nickel Inc. - Shahe Sabag, President &
CEO or Denis Clement, Chairman, (416) 595-1195, email ir@dumontnickel.com;
Also visit www.dumontnickel.com