Nautilus delivers US$2 Million Financing Notice for June 2017

TORONTO, ONTARIO--(Marketwired - May 23, 2017) - Nautilus Minerals Inc. (TSX:NUS)(OTCQX:NUSMF)(OTC:NUSMF Nasdaq Intl Designation) (the "Company" or "Nautilus") announces that, pursuant to its subscription agreement with Mawarid Offshore Mining Ltd. and Metalloinvest Holding (Cyprus) Limited (together, the "Investors") dated August 21, 2016, as amended (the "Subscription Agreement"), the Company has delivered a financing notice dated May 19, 2017 (the "Financing Notice") to the Investors in respect of a private placement of an aggregate of 11,021,052 common shares of the Company at an issue price of C$0.247 per share for aggregate proceeds to the Company of US$2,000,000. The private placement will be allocated equally between the two Investors.

In accordance with the Subscription Agreement, the issue price equals the five day volume weighted average trading price of the Company's shares on the Toronto Stock Exchange immediately prior to the date of the Financing Notice, and the number of shares to be issued under the Financing Notice was calculated based on the daily US/CAD exchange rate of 1.3611 posted by the Bank of Canada on the last business day prior to the date of the Financing Notice.

Closing of the private placement under the Financing Notice is required to occur during June, 2017 and within 10 business days following payment of the subscription proceeds by the Investors to the Company, pursuant to the Subscription Agreement.

The private placement forms part of the up to US$20 million financing approved by the Company's shareholders at the extraordinary general meeting of the Company held on October 26, 2016.

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http://www.nautilusminerals.com/irm/PDF/1818/NautilusobtainsbridgefinancingandrestructuresSolwara1Projectdelivery

For more information please refer to www.nautilusminerals.com.

The TSX does not accept 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 the closing of the bridge financing, the use of proceeds of the bridge financing, the restructuring plan, and plans to develop the seafloor mining industry.We have made numerous assumptions about such statements, includingassumptionsrelatingtothe bridge financing, project funding, completionandoperationoftheCompany'sseafloorproductionsystem and assumptions regarding the timing and effect of the restructuring plan, including securing agreements with third parties to complete the construction of the remaining seafloor production system within certain timeframes.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-lookinginformationbyitsnatureinvolvesknownandunknownrisks,uncertaintiesandotherfactors which may cause the actual results to be materially different from any future results expressed or implied by such forward-lookinginformation.PleaserefertoourmostrecentlyfiledAnnualInformationForminrespectofmaterial assumptions and risks related to the prospects of extracting minerals from the seafloor and other risks relatingtotheCompany'sbusinessandplansfordevelopmentoftheSolwara1Project.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, testing and deployment of the Company's seafloor production system and that agreements with third party contractors for building slots within certain timeframes are not secured as required.AstheCompanyhasnotcompletedaneconomicstudyinrespectoftheSolwara1Project,therecanbenoassurance that the Company's production plans will, if fully funded and implemented, successfully demonstrate that seafloor resource production is commercially viable.Risks related to the restructuring plan include the risk that the plan cannot be implemented as expected, the risk that the plan does not result in the cost savings expected and the risk that the restructuring plan and the bridge financing do not provide sufficient time for the Company to secure project financings for the Solwara 1 Project.Except as required by law, we do not expect to update forward-looking statementsandinformationasconditionschangeandyouarereferredtothefulldiscussion oftheCompany'sbusinesscontainedintheCompany'sreportsfiledwiththesecuritiesregulatoryauthoritiesinCanada.

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 is also a member of the Nasdaq International Designation program. 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 28.6% interest and Metalloinvest, the largest iron ore producer in Europe and the CIS, which has a 17.5% holding (each on a non-diluted basis, excluding loan shares outstanding under the Company's share loan plan).