PBX Files NI 43-101 Resource Estimate Report for Copaquire Molybdenum-Rhenium-Copper Project, Chile

VANCOUVER, BRITISH COLUMBIA, Apr 20 (MARKET WIRE) --
International PBX Ventures Ltd. (TSX VENTURE: PBX) is pleased to announce
it has filed the report "Mineral Resource Estimate Copaquire Project" by
Gino Zandonai, Consulting Mining Engineer, M.Sc., at www.SEDAR.com. The
report which can be viewed on the company's website
www.internationalpbx.com expands on the company's news release of January
12, 2009 and defines the current status of the mineral resources of the
Cerro Moly molybdenum-rhenium-copper deposit located in the northern part
of Chile about 1,450 kilometres north of Santiago and approximately 15
kilometres west of the Collahuasi and Quebrada Blanca producing mines.

The Cerro Moly deposit is now estimated to host an Indicated Mineral
Resource of 277.5 million tonnes averaging 0.041% molybdenum, 0.098 ppm
rhenium and 0.092% copper. The contained metal in this Indicated Mineral
Resource is estimated at 254.7 million pounds of molybdenum, 60,000 lbs
rhenium and 562.5 million lbs of copper. An additional Inferred Mineral
Resource for this area is estimated at 232.4 million tonnes grading
0.038% molybdenum, 0.059 ppm rhenium and 0.097% copper, containing 232.4
million pounds of molybdenum, 30,000 lbs rhenium and 498 million lbs of
copper. Both the Indicated and Inferred Mineral Resources are at a cutoff
grade of 0.02% molybdenum. The Indicated and Inferred Mineral Resources
for Mo, Cu and Re at incremental cutoffs are shown as follows:

Mineral Resource Estimate Table

---------------------------------------------------------------------------
Cut-
off Re lbs.
Category (Mo%) Tonnage Mo% lbs. Mo Cu% lbs. Cu (ppm) Re
---------------------------------------------------------------------------
Indicated 0.02 277,520,000 0.041 253,731,289 0.092 562,531,199 0.098 59,939
---------------------------------------------------------------------------
0.03 184,612,000 0.050 203,519,935 0.089 364,063,628 0.118 47,773
-----------------------------------------------------------------
0.04 114,576,000 0.059 149,944,777 0.084 213,101,139 0.131 32,991
-----------------------------------------------------------------

---------------------------------------------------------------------------
Inferred 0.02 232,396,000 0.038 192,926,547 0.097 498,058,820 0.059 30,177
---------------------------------------------------------------------------
0.03 114,822,000 0.051 129,040,786 0.096 241,981,635 0.075 18,951
-----------------------------------------------------------------
0.04 59,370,000 0.067 87,343,380 0.084 110,510,788 0.082 10,734
-----------------------------------------------------------------

These mineral resource estimates were prepared under the supervision
of Gino Zandonai, Consulting Mining Engineer, M.Sc., member of SME and
Eduardo Videla, Consulting Geologist, M.Sc., member of MAusIMM, both
independent Qualified Persons under JORC and NI 43-101.

Mr. Zandonai has reviewed and approved the technical information in this
release.

The Copaquire project is a copper porphyry property hosting a discrete
molybdenum intrusion called Cerro Moly. Whereas almost all of the Chilean
molybdenum production comes as a by-product recovery from its large
porphyry copper mines, the Copaquire Cerro Moly deposit is the only
stand-alone moly deposit in Chile.

The Copaquire is expected to be very amenable to low-cost quarry/open-pit
mining as over 25% of the deposit is contained above grade level within
the Cerro Moly mountain. High grade material on face of mountain may
potentially facilitate rapid recovery of capital costs during the early
years of production. Metallurgical testing produces 90-95% moly
recoveries. Rhenium content may provide significant economic credits.

"With base metal prices projected to remain moderate for the next couple
of years the key for success is in developing a low-cost mining project,"
commented George Sookochoff, President & CEO. "I am confident that the
Copaquire project will prove to be the right project for the new economy.
We are continuing to advance the project through a Preliminary Economic
Assessment (PEA) study. The PEA is designed to generate Order of
Magnitude (OOM) capital and operating cost estimates, financial analysis
based on OOM estimates, pit and waste dump outline and production
schedules. A project of this size would require a major partner to move
it forward to feasibility and on to production and a positive PEA would
enable us to attract such a partner."

About PBX

International PBX Ventures is a Canadian junior mining and exploration
company focused on acquisition and development of molybdenum, copper and
gold properties in Chile.

PBX's flagship project is the 100% owned Copaquire moly-rhenium-copper
property, a circum-Pacific style porphyry copper-molybdenum open-pittable
deposit similar to other Andean porphyry systems in northern Chile.

PBX's shares trade on the Toronto Venture Stock Exchange under the symbol
PBX.V.

ON BEHALF OF THE BOARD OF DIRECTORS OF INTERNATIONAL PBX VENTURES LTD.

George Sookochoff, President & CEO

This News Release includes certain "forward-looking statements". All
statements other than statements of historical fact included in this
release, including, without limitation, statements regarding potential
mineralization and reserves, exploration results, and future plans and
objectives of PBX are forward-looking statements that involve various
risks and uncertainties. There can be no assurance that such statements
will prove to be accurate and actual results and future events could
differ materially from those anticipated in such statements. Important
factors that could cause actual results to differ materially from the
expectations of PBX are detailed from time to time in the filings made by
PBX with securities regulators.

Mineral resources that are not mineral reserves do not have demonstrated
economic viability.

The TSX Venture Exchange has not reviewed and
does not accept responsibility for the adequacy or accuracy of this
release and the information contained herein.

Contacts:
International PBX Ventures Ltd.
George Sookochoff
President & CEO
(604) 681-7748 or Toll Free: 1-877-681-1154
(604) 681-0586 (FAX)
Web: www.internationalpbx.com

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