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News Releases - Wednesday, July 18, 2007
ROCA - MAX Molybdenum Exploration Drill Program Commences
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Vancouver, British Columbia: Roca Mines Inc. (ROK: TSX-V) ("Roca" or
the "Company") provides the following update on exploration activities;

Hy-Tech Drilling Ltd. of Smithers, BC has mobilized a diamond drill and
crew to the MAX Molybdenum Mine site. Hy-Tech will carry out an
initial drilling exploration program which will focus on the potential
to expand the known molybdenite resource which remains open at depth.

This initial program will test areas below the existing MAX resource
and will evaluate geological models developed by the Company's
exploration advisory board. These models include multiple
opportunities to add to the resource including; i) testing of
extensions to the HG Zone, ii) testing fault-offset zones of the
deposit, and iii) testing a postulated deep hydrothermal source of the
MAX deposit. Each planned drillhole is designed to test more than one
of these exploration models. This initial drill program will be carried
out from the existing adit level underground, and each hole will range
in depth from 700m to 1,500m. Results from the program will be
reported once all drilling, sampling and assay results have been
received by the Company.

The MAX Molybdenum deposit contains a measured and indicated resource
of 42.9 million tonnes grading 0.20% MoS2 using a 0.10% MoS2 cutoff
(refer to T.N. Macauley's 43-101 compliant technical report dated
September 2004 available via SEDAR).

Foremore Project

Roca has recently mobilized a crew to prepare the Company's existing
primary camp prior to field work planned to commence shortly. The
Foremore VMS-Gold project is located in northwestern British Columbia,
45 km (27 miles) north of Barrick Gold's Eskay Creek Mine and
mid-distance along the road route to the large-scale Galore Creek
Project, currently being developed by NovaGold Resources Inc. and Teck
Cominco Ltd.

Field crews will begin prospecting new areas of interest that were
identified through interpretation of results from an airborne survey
flown in late 2005. That survey and interpretation, along with previous
exploration data, has led to the identification of numerous drill-ready
targets which will be the focus of a drill program planned for later in
the summer.

Roca's 2007 Foremore exploration program will initially focus on the
South Boulder Field ("SBF") area where in excess of 800 massive
sulphide boulders were originally discovered by Cominco in the late
1980's. Cominco's assay results of 53 mineralized boulders at this
location averaged 9.4% Zn, 1.7% Pb and 102 g/t Ag (results reported in
43-101 compliant technical report on Foremore prepared by Mr. W.A.
Sandy Sears, P.Geo. and Mr. John J. Watkins, P.Geo., dated April 2005).

Revelstoke Properties

Roca has also initiated exploration work on its Revelstoke Properties
where ground reconnaissance, mapping and geochemistry surveys have been
conducted over primary areas of interest. Results are pending on the
initial programs conducted at these locations.

Mr. Scott Broughton, P.Eng. is the qualified person responsible for the
preparation of this news release.

ROCA MINES INC.
"Scott Broughton"

Scott E. Broughton, P.Eng. -- President & CEO


For further information contact:
Doug Fosbrooke
Investor Relations
Tel: 604-684-2900
Fax: 604-684-2902
Email: info@rocamines.com
Web: www.rocamines.com

The TSX Venture Exchange does not accept responsibility for the
adequacy or accuracy of this release.

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Copyright (c) 2007 ROCA MINES INC. (ROK) All rights reserved. For
more information visit our website at http://www.rocamines.com/ or send
mailto:info@rocamines.com
Message sent on Wed Jul 18, 2007 at 3:09:03 PM Pacific Time
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