Ascendant Copper Announces Zonia Metallurgical Data



    VANCOUVER, June 18 /CNW/ - Ascendant Copper Corporation ("Ascendant" or
the "Company") (TSX:ACX) is pleased to announce that through a wholly-owned
subsidiary it has recently acquired a comprehensive metallurgical data package
pertaining to its Zonia copper project located in Yavapai County, Arizona.
This metallurgical data, developed over a period of almost a year, was
commissioned by another mining company conducting technical due diligence of
the Zonia property prior to Ascendant's acquisition of it.
    The data and descriptive report, generated by Metcon Research, Inc.
("Metcon") of Tucson, Arizona in 2007-2008, consists of information developed
in column tests performed on several tons of material collected from four
trenches cut within the existing Zonia open pit, and bottle roll tests on both
the same material and numerous samples of previously collected drill cuttings
from lower depths within the Zonia deposit. All tests were directed at
determining the mineralized material's response to treatment by heap leaching
and solvent extraction/electro-winning (SXEW) recovery of copper. Indicated
recoveries, based on various material sizes and leach times, were between 71%
and 81%.
    "Metallurgy, and correct metallurgical testing, are paramount to the
success of any SXEW operation," said Gary E. Davis, CEO and President. "While
much metallurgical data already exists on the Zonia project as developed for
an existing feasibility study prepared in 1995, this Metcon data, coupled with
proposed additional testing of deeper material within the existing mine pit
boundaries and in areas of probable pit expansion, will solidify this
important technical component for advancing the project feasibility study."
    Tetra Tech Inc., responsible for the coordination and assembly all
information necessary for completion of definitive feasibility study covering
the Zonia project, will incorporate this recently acquired data into the
planning of final metallurgical testing for Zonia. The target date for Tetra
Tech's feasibility study is the first quarter of 2009.
    The Zonia project consists of 3,222 acres of patented and unpatented
mining claims in the Walnut Grove Mining District with easy access to power
and paved roads. The property was operated between 1966 and 1975 producing
approximately 33 million pounds of copper using heap leaching followed by a
cementation process. In October 2006, Scott Wilson Roscoe Postle Associates
Inc. prepared a National Instrument 43-101 compliant inferred resource
estimate of 63 million tons of material at a copper grade of 0.37% (using a
0.25% cut-off grade).

    About Ascendant

    Ascendant Copper Corporation is a mineral exploration and development
company focused on advancing a portfolio of copper exploration projects with a
primary emphasis on the development of its near-term producing copper
properties in the Americas. The Company intends to continue to expand its
existing resource base in the Americas through acquisition of additional
properties of merit.





For further information:

For further information: Rana S. Gill, Chief Financial Officer, (866)
907-6047, rgill@ascendantcopper.com; Joanna Longo, Investor Relations,
(866)592-2564, jlongo@ascendantcopper.com

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Copper Mesa Mining Corporation

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