Nautilus Joins Nasdaq International Designation

TORONTO, ONTARIO--(Marketwired - Dec. 9, 2015) - Nautilus Minerals Inc. (TSX:NUS) (OTCQX: NUSMF) (the "Company" or "Nautilus") announces it has become a member of the Nasdaq International Designation, a new over-the-counter platform available to non-U.S. companies. Nautilus is one of the first participants in the Nasdaq International Designation program which is represented by a diverse range of industry sectors.

Mike Johnston, Nautilus' CEO, commented, "The U.S. capital markets represent the largest pool of investor capital in the world. The Nasdaq is globally renowned as the "home of innovation", and we are excited to become part of its story, as we aim to make seafloor mining a reality in Q1 2018".

Member companies of the Nasdaq International Designation are not listed or traded on The Nasdaq Stock Market and are not subject to the same listing or qualification standards applicable to securities listed or traded on that exchange. To read more about Nasdaq in relation to its International Designation program, click on this link: http://www.business.nasdaq.com/list/international-designation

About Nasdaq:

Nasdaq (Nasdaq: NDAQ) is a leading provider of trading, clearing, exchange technology, listing, information and public company services across six continents. Through its diverse portfolio of solutions, Nasdaq enables customers to plan, optimize and execute their business vision with confidence, using proven technologies that provide transparency and insight for navigating today's global capital markets. As the creator of the world's first electronic stock market, its technology powers more than 70 marketplaces in 50 countries, and 1 in 10 of the world's securities transactions. Nasdaq is home to more than 3,600 listed companies with a market value of approximately $8.8 trillion and more than 10,000 corporate clients. To learn more, visit: nasdaq.com/ambition or business.nasdaq.com.

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

Certain of the statements made in this news release may contain forward-looking information within the meaning of applicable securities laws, including statements with respect to making seafloor mining a reality in Q1 2018. We have made numerous assumptions about such statements, including assumptions relating to the funding, completion and operation of the Company's seafloor production system. Even though our management believes the assumptions made and the expectations represented by such statements are reasonable, there can be no assurance that they will prove to be accurate. Forward-looking information by its nature involves 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 information. Please refer to our most recently filed Annual Information Form in respect of material assumptions and risks related to the prospects of extracting minerals from the seafloor and other risks relating to the Company's business and plans for development of the Company's seafloor mining project, Solwara 1. The Company is assuming that the seafloor production system to be used at the Solwara 1 Project will be built and operate according to the Nautilus specifications and on schedule. Risks related to such arrangement include delay to the delivery of the seafloor production equipment and a consequent delay to the commencement of production. Risks related to advancing towards production include the risk that the Company will be unable to obtain at all or on acceptable terms the remaining financing necessary to fund completion of the build and deployment of the Company's seafloor production system. As the Company has not completed an economic study in respect of the Solwara 1 Project, there can be no assurance that the Company's production plans will, if fully funded and implemented, successfully demonstrate that seafloor resource production is commercially viable. 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.

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 highly prospective exploration acreage in the western Pacific (granted and under application), as well as in international waters in the Central Pacific.

A Canadian registered company, Nautilus is listed on the TSX:NUS stock exchange and trades on the OTCQX:NUSMF. Its corporate office is in Brisbane, Australia. Its major shareholders include MB Holding Company LLC, an Oman based group with interests in mining, oil & gas, which holds a 28.14% interest, Metalloinvest, the largest iron ore producer in Europe and the CIS, which has a 20.89% holding and global mining group Anglo American, which holds a 5.99% interest (each on a non-diluted basis, excluding loan shares outstanding under the Company's share loan plan).