Nautilus Files Prospectus

VANCOUVER, BRITISH COLUMBIA--(Marketwire - May 12, 2011) -

NOT FOR DISSEMINATION IN THE UNITED STATES OR FOR DISTRIBUTION TO US NEWSWIRE SERVICES

Nautilus Minerals (TSX:NUS)(AIM:NUS) has today filed a preliminary short form prospectus within each province of Canada other than Quebec in respect of a marketed public offering of common shares.

The offering is being co-led by TD Securities Inc. and Credit Suisse Securities (Canada), Inc.

The offering will be priced in the context of the market with the final terms to be determined at the time of pricing.

The offering is subject to certain conditions including, but not limited to, the receipt of all necessary approvals, including the acceptance of the Toronto Stock Exchange.

The prospectus is available electronically at www.sedar.com.

Certain of the statements made in this news release may contain forward-looking statements within the meaning of applicable Canadian and United States Securities law. Even though our management believes that the assumptions made and the expectations represented by such statements or information are reasonable, there can be no assurance that the forward-looking statements or information will prove to be accurate. Forward-looking statements and information by their nature involve known and unknown risks, uncertainties and other factors which may cause the actual results to be materially different from any future results expressed or implied by such forward-looking statements or information. Such risks, uncertainties and other factors include, among others, a change in the expected use of proceeds, the failure to complete the offering or to obtain the approval of the TSX. Should one or more of these risks, uncertainties or other factors materialize, or should underlying assumptions prove incorrect, actual results may vary materially from those described in forward-looking statements and information. Although we have attempted to identify factors that would cause actual results to differ materially from those described in forward-looking statements and information, there may be other factors that cause actual results, performances, achievements or events to not be as anticipated, estimated or intended. Also, many of the factors are beyond our control. There can be no assurance that forward-looking statements or information will prove to be accurate, as actual results and future events could differ materially from those anticipated in such statements. Accordingly you should not place undue reliance on forward-looking statements or information. Except as required by law, we do not expect to update forward-looking statements and information as conditions change and you are referred to the full discussion of the Company's business contained in the Company's reports filed with the securities regulatory authorities in Canada.

This news release and the information contained herein does not constitute an offer of securities for sale in the United States and securities may not be offered or sold in the United States absent registration or an exemption from registration.