Ascendant Copper Advances Zonia Project

    TSX symbol: ACX
    Berlin-Bremen Stock Exchange symbol: A0HMLE
    Frankfurt Freiverkehr (WKN A0HMLE) A5C

    VANCOUVER, June 16 /CNW/ - Ascendant Copper Corporation ("Ascendant" or
the "Company") (TSX:ACX) is pleased to announce that through a wholly-owned
subsidiary it has entered into a master services agreement ("Agreement") with
Tetra Tech Inc. ("Tetra Tech"), an international provider of technical and
engineering services, for the preparation of a definitive feasibility study
for the Zonia copper project located in Yavapai County, Arizona.
    Under the terms of the Agreement, Tetra Tech will be directly responsible
for the coordination and assembly of all information needed for a definitive
feasibility study. Components of the Tetra Tech program include studies
relative to ground water quality and protection, geo-technical studies,
drilling as needed to produce an updated resource estimate and mine plan,
comprehensive metallurgical analyses, and infrastructure and final site
layout. The target for completion of this work and the resulting feasibility
study is first quarter of 2009.
    "This Agreement marks a major step in the near-term development of the
Zonia project," said Gary E. Davis, President and CEO of Ascendant. "Our
objective is to begin producing 20 million pounds of copper per year from
Zonia in 2010 based on solvent extraction / electro-winning (SXEW) processing
    The Zonia project consists of 3,322 acres of patented and unpatented
claims in the Walnut Grove Mining District, with easy access to power and
paved roads. The project was operated between 1966 and 1975 producing
approximately 33 million pounds of copper using heap leaching followed by the
cementation process.
    Over 100,000 feet of drilling of approximately 450 holes has been
performed on the property in the past with the majority of the geologic
material from this drilling available for sampling, re-assaying and
re-logging. 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
    To date, Tetra Tech has made several site visits, begun work on an
existing computer model of the resource, commenced analysis of historic water
quality data, developed a testing regimen for final metallurgical studies, and
assisted in the design of confirmatory and geotechnical drill programs.
Currently, a provisional site layout is being developed to guide additional
engineering, permitting, and geotechnical studies.

    About Tetra Tech

    Tetra Tech (, a publicly traded company (NASDAQ:   TTEK),
is a leading provider of consulting, engineering, and technical services with
approximately 8,500 associates and 275 offices worldwide. Tetra Tech's
services include engineering design, program management, construction
management, construction, operations and maintenance, research and
development, and applied science and technology,.

    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,; Joanna Longo, Investor Relations, (866)

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Copper Mesa Mining Corporation

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