MacDonald Mines to Exhibit at the 2012 PDAC International Trade Show & Investors Exchange, Toronto Ontario-Booth 2350

TORONTO, ONTARIO--(Marketwire - March 1, 2012) - MacDonald Mines Exploration Ltd. (TSX VENTURE:BMK) ("MacDonald" or the "Company") announces that it will be exhibiting at the 2012 Prospectors & Developers Association of Canada (PDAC) International Trade Show & Investors Exchange.

The Company wishes to invite all current and potential investors to visit Booth 2350 and discuss first-hand with management the latest exploration developments on its Butler, Semple-Hulbert and Sanderson Properties in the Ring of Fire region of the James Bay Lowlands, Northern Ontario.

The PDAC is being held at the Metro Toronto Convention Centre, South Building, and runs from Sunday March 4 to Wednesday March 7. Times and details can be accessed at www.pdac.ca.

About the 2012 PDAC

The PDAC International Convention, Trade Show & Investors Exchange is the world's largest convention for mineral exploration.

The four-day annual Convention held in Toronto, Canada is the event of choice for the world's mineral industry. The convention attracts over 1,000 exhibitors and 27,000 attendees from 120 countries.

About MacDonald Mines Exploration Ltd.

MacDonald Mines is a mineral exploration company with an established exploration history in the Canadian Northlands. MacDonald Mines has set upon a strategic direction of exploration with particular focus on nickel, chrome, copper, zinc, vanadium and titanium in the "Ring of Fire" area of the James Bay Lowlands of Northern Ontario.

With over 9 years of exploration in the James Bay Lowlands, the Company has systematically acquired quality land positions based on a very precise selection format that utilizes region-wide interpretations completed by geological consultant Hadyn Butler, P. Geo. MacDonald is now the second largest landholder in the Ring of Fire and has a proven track record of environmentally and socially conscious exploration practices.

MacDonald Mines exploration focus has been on 3 properties - the Butler, the Semple-Hulbert and the Sanderson. Recent exploration has been focused on the Butler property, where the Company has identified seven significant zones of multi-element mineralization, including copper-zinc VMS systems, vandiferous titano-magnetite and magmatic nickel sulphides.

The Company has established rapport with First Nation Communities in this region, which has culminated in the signing of exploration agreements with the Kasabonika Lake and Webequie First Nations.

More detailed information about the Company is available on the website: www.macdonaldmines.com.

Cautionary Statement:

No stock exchange, securities commission or other regulatory authority has approved or disapproved the information contained herein. The foregoing information may contain forward-looking statements relating to the future performance of MacDonald Mines Exploration Ltd. Forward-looking statements, specifically those concerning future performance, are subject to certain risks and uncertainties, and actual results may differ materially from MacDonald Mines plans and expectations. These plans, expectations, risks and uncertainties are detailed herein and from time to time in the filings made by MacDonald Mines with the TSX Venture Exchange and securities regulators. MacDonald Mines does not assume any obligation to update or revise its forward-looking statements, whether as a result of new information, future events or otherwise. We seek safe harbour.