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March 21, 2013 at 07:33 AM EDT
Nautilus Minerals Issues Updated Technical Report for CCZ Project

TORONTO, ONTARIO -- (Marketwire) -- 03/21/13 -- Nautilus Minerals Inc. (TSX: NUS)(OTCQX: NUSMF) (the "Company" or "Nautilus") announces that it has filed on SEDAR an updated technical report in respect of the Clarion Clipperton Zone Project being undertaken by its wholly owned subsidiary Tonga Offshore Mining Limited, entitled "Updated NI 43-101 Technical Report, Clarion-Clipperton Zone Project, Pacific Ocean".

The updated report provides additional information on methodology, data verification and mineralisation, as well as several additional maps and figures. It is updated as of March 20, 2013, and has an effective date of March 20, 2013. The resource remains unchanged from the original report which was released on September 24, 2012 (see links section for full press release).

Links

http://www.nautilusminerals.com/s/Media-NewsReleases.asp?ReportID=549339

The Updated NI 43-101 Technical Report, Clarion-Clipperton Zone Project, Pacific Ocean has been filed on www.sedar.com and is also available on the Company's website www.nautilusminerals.com/s/Investors-Financials.asp.

About Nautilus Minerals Inc.

Nautilus is the first company to explore the ocean floor for polymetallic seafloor massive sulphide deposits. Nautilus was granted the first mining lease for such deposits at the prospect known as Solwara 1, in the territorial waters of Papua New Guinea, where it is aiming to produce copper, gold and silver. The company has also been granted its environmental permit for this site.

Nautilus also holds more than 500,000 km2 of highly prospective exploration acreage in the western Pacific; in PNG, the Solomon Islands, Fiji, Vanuatu and Tonga, as well as in international waters in the eastern Pacific.

A Canadian registered company, Nautilus is listed on the (TSX: NUS) stock exchange and (OTCQX: NUSMF). Its corporate office is in Brisbane, Australia. Its major shareholders include Metalloinvest, the largest iron ore producer in Europe and the CIS, which has a 21% holding, global mining group Anglo American, which holds an 11.1% interest and MB Holdings, an Oman based group with interests in mining, oil & gas, which holds a 16.9% interest.

Neither the TSX nor the OTCQX accepts responsibility for the adequacy or accuracy of this press release.

Contacts:
Nautilus Minerals Inc. (Toronto)
Investor Relations
+1 (416) 551 1100
investor@nautilusminerals.com
www.nautilusminerals.com

Dahlman Rose & Co., LLC
Christopher R. Weekes
Direct: +1 212 372 5766
1301 Avenue of the America's
New York, NY 10019

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