Roca Mines Inc. ("Roca" or "the Company") (TSX VENTURE:ROK) announces the
following update on construction activities at its MAX Molybdenum Mine.


Construction activities at MAX have progressed well since the Company's last
update with many components of the project at, or very near completion. The
areas that are on schedule as of today to facilitate production include; the
underground mine, the assay laboratory and the tailings facility. The
underground mine and tailings areas of the project will, like all mines,
continue to be developed and constructed over the life of the project.


Recent construction delays in the crusher, mill and concentrator areas have been
primarily related to the availability of equipment and personnel. For example, a
recent interruption in the delivery of a third primary diesel genset resulted in
a postponement to energizing the crusher and mine-mill power distribution
system. That equipment is anticipated to arrive at site on Wednesday September
5, 2007 which will allow for the crusher facility and its individual components
to be immediately tested and commissioned by mid-September, 2007. Initial
testing will be facilitated using waste rock and low-grade material leading to
the crushing of stockpiled ore-grade material located near the crusher.


The Mill/Concentrator is also nearing completion and various key components to
it will be tested during the month of September 2007 once the power distribution
system is completed and energized. Testing at the concentrator will result in
the production of concentrates with expected mill capacity being achieved later
in September.


Mill expansion engineering is underway with structural designs being completed
for the Harding 9.5 x 15, 700 hp ball mill recently acquired. In addition, some
preparatory work for the new mill has been completed.


Work on the #2 Adit is also progressing well and will continue without
interruption to mine production.


Underground diamond drilling continues to test the deeper extensions of the MAX
deposit and core is currently being logged, split and sent to an independent
assay laboratory. Results of the drill program will be reported once the assays
have completed and received by the Company.


ROCA MINES INC.

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

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