Micrex Development Corp. V.MIX.H

43-101 UPDATE

[rockhounddog]

Micrex Development Corp.: St. Charles NI43-101 Report Update

10:50 EST Monday, Jun 06, 2011

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EDMONTON, ALBERTA--(Marketwire - June 6, 2011) -Micrex Development Corp. (TSX VENTURE:MIX) is pleased to announce thatindependent consulting geologists, Réjean Girard and Jean-Paul Barrette,P. Geo., NI 43-101 qualified persons, from IOS ServicesGeoscientifiques, have recently conducted a comprehensive field visit ofthe St. Charles, Québec, Magnetite / Titanium / Apatite / Rare Earth /Vanadium deposit as part of the due diligence required to complete theNI 43-101 compliant report.

The geologists advise that with limited extradrilling should easily confirm between 10 million to 43 million tons ofore, equal to the historical resource estimates on the St. Charlesdeposit.

The geologists also recommended undertaking aftercompletion of the report an ultra-high definition airborne magnetometersurvey to isolate the deposit's outer limits, in addition to adefinition drill program to further confirm tonnage. The geologistsstated that a 5 hole drill program should immediately define 2 milliontons of ore.

As previously announced, various industrial consumersand dealers have indicated interest in the St-Charles magnetite depositoutput.

Management looks to delineate larger tonnage as sales and production progress.

Visit www.mixcorp.com for further details.

This press release has been reviewed by M. RéjeanGirard, geologist and head director of IOS Services GéoscientifiquesInc. and the Company's Qualified Person for this project under themeaning of NI 43-101.

MICREX DEVELOPMENT CORP.

Burmis Magnetite/Titanium Property • St. Charles deBourget Magnetite/Titanium/Rare Earth Property • Fort Steele PlacerProperty • Bighorn Gold Mine • Banks Gold Mine • Mount Royal Gold Mine •Deadwood Gold Mine • Sunburst Gold Property

FORWARD LOOKING STATEMENTS

Certain statements in this news release are"forward-looking statements", which reflect management's expectationsregarding its property and business operations. All statements otherthan statements of historical fact contained in this news release areforward-looking statements. Such forward-looking statements involverisks and uncertainties, as they reflect management's current beliefsand are based on information currently available to management. Actualresults may differ materially from those anticipated in the statementsmade. The forward-looking statements are expressly qualified in theirentirety by this cautionary statement. The forward-looking statementsare made as of the date of this news release and Micrex assumes noobligation to update or revise them to reflect new events orcircumstances except as expressly required by applicable securities law.Further information regarding the uncertainties and risks can be foundin the disclosure documents filed by Micrex with the securitiesregulatory authorities, available at www.sedar.com.

MICREX DEVELOPMENT CORP.: A mineral exploration and development company operating in Canada and the United States

SEC 12 g (3) Exemption 82-4281

FOR FURTHER INFORMATION PLEASE CONTACT:

Perry MeszarosMicrex Development Corp.[phone]

OR

S.E. MarshallMicrex Development Corp.(780) [e-mail]

NEITHER THE TSX VENTURE EXCHANGE NOR ITSREGULATION SERVICE PROVIDER (AS THAT TERM IS DEFINED IN THE POLICIES OFTHE TSX VENTURE EXCHANGE) ACCEPTS RESPONSIBILITY FOR THE ADEQUACY ORACCURACY OF THIS RELEASE.