Macarthur Minerals Limited
TSX : MMS
OTCQX : MMSDF

Macarthur Minerals Limited

March 09, 2012 11:17 ET

Macarthur Minerals Limited: Technical Report Filed

VANCOUVER, BRITISH COLUMBIA--(Marketwire - March 9, 2012) -

THIS NEWS RELEASE IS NOT FOR DISTRIBUTION TO UNITED STATES SERVICES OR FOR DISSEMINATION IN THE UNITED STATES

Macarthur Minerals Limited (TSX:MMS)(OTCQX:MMSDF) (the "Company" or "Macarthur") announces that further to its news release dated January 24, 2012 announcing a mineral resource estimate on the Company's Ularring Hematite Project located in the Yilgarn region of Western Australia, it has today filed a National Instrument 43-101 technical report entitled "Technical Report, Macarthur Minerals Limited Hematite Mineral Resource Ularring Hematite Project Western Australia" dated March 7, 2012 prepared by David Williams MAIG of CSA Global Pty Ltd, Alan Dickson FAusIMM(CP) of Alan Dickson & Associates Pty Ltd, and Neville Dowson FAusIMM of Engenium Pty Ltd, and supporting the disclosure of mineral resources in such release. The technical report is consistent in all material respects with the mineral resource statement announced in the January 24 news release.

Please note that the January 24, 2012 release contained a formatting error in Table 2 - Mineral Resource Comparisons. A corrected copy is attached to this release. To view it, please click the following link: http://media3.marketwire.com/docs/MACrelease.pdf

ABOUT MACARTHUR MINERALS LIMITED (TSX:MMS)(OTCQX:MMSDF)

Macarthur Minerals Limited is an Australian based resource development company currently focused on developing its Ularring Hematite Project, located in the Yilgarn iron ore district in Western Australia. The Ularring Hematite Project is located 110 km from rail infrastructure with a direct connection to the iron ore exporting Port of Esperance, Western Australia.

Macarthur's Moonshine Magnetite Project has an inferred resource of 1.3 Bt at 30.1% Fe (press release dated December 15, 2010; NI43-101 Technical Report dated March 25, 2011).

Positive Preliminary Economic Assessments were released to the market on the Ularring Hematite Project in November 2011 (press release dated November 21, 2011, NI43-101 Technical Report dated January 3, 2012) and the Moonshine Magnetite Project in February 2011 (press release dated February 7, 2011).

On behalf of the Board of Directors,

MACARTHUR MINERALS LIMITED

Alan Phillips, President, Chairman & CEO

Caution Regarding Forward Looking Statements

Certain of the statements made and information contained in this press release may constitute forward-looking information and forward-looking statements (collectively, "forward-looking statements") within the meaning of applicable securities laws. The forward-looking statements in this press release reflect the current expectations, assumptions or beliefs of the Company based upon information currently available to the Company. With respect to forward-looking statements contained in this press release, assumptions have been made regarding, among other things, the reliability of information prepared and/or published by third parties that are referenced in this press release or was otherwise relied upon by the Company in preparing this press release. Although the Company believes the expectations expressed in such forward-looking statements are based on reasonable assumptions, such statements are not guarantees of future performance and no assurance can be given that these expectations will prove to be correct as actual results or developments may differ materially from those projected in the forward-looking statements. Factors that could cause actual results to differ materially from those in forward-looking statements include unforeseen technology changes that results in a reduction in iron or magnetite demand or substitution by other metals or materials, the discovery of new large low cost deposits of iron magnetite and the general level of global economic activity. Readers are cautioned not to place undue reliance on forward-looking statements due to the inherent uncertainty thereof. Such statements relate to future events and expectations and, as such, involve known and unknown risks and uncertainties. The forward-looking statements contained in this press release are made as of the date of this press release and except as may otherwise be required pursuant to applicable laws, the Company does not assume any obligation to update or revise these forward-looking statements, whether as a result of new information, future events or otherwise.

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