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File: Metallo Early Warning Press Release (August 2017).docx

EARLY WARNING PRESS RELEASE

August 4, 2017 - This press release is being disseminated by Metalloinvest Holding (Cyprus) Limited ("Metallo"), an in
--->vestment company incorporated under the laws of Cyprus at the address of 205 Christodoulou Chatzipavlou, Louloupis Cou
--->rt, 7th Floor, 3036 Limassol, Cyprus as required by National Instrument 62-103 - The Early Warning System and Related 
--->Take Over Bids and Insider Reporting Issues.
Metallo has acquired an aggregate of 16,990,111 common shares of Nautilus Minerals Inc. (the "Common Shares") with hea
--->d office at Level 3, 33 Park Road, Milton, Queensland, Australia (the "Issuer"), representing 2.42% of the Issuer's cu
--->rrent issued and outstanding Common Shares. The Common Shares were purchased under the Issuer's subscription agreement
---> with Metallo and Mawarid Offshore Mining Ltd. ("Mawarid", and together with Metallo, the "Purchasers") dated August 2
--->1, 2016, as amended, pursuant to which common shares of the Issuer will be purchased by the Purchasers on a private pl
--->acement basis and will close in tranches, on a monthly basis, during the period from December 1, 2016 through November
---> 30, 2017 (the "Financing Period"), at the election of the Issuer. The Issuer will determine the amount of funds to be
---> raised under each tranche during each month of the Financing Period, subject to the limitations of receiving maximum 
--->subscription proceeds of US$2,000,000 per month and an aggregate maximum total of US$20,000,000 during the entire Fina
--->ncing Period. 
Since the date of the last early warning report filed by Metallo on April 12, 2017, the Issuer issued to the Purchaser
--->s an aggregate of 11,197,488 Common Shares on May 11, 2017 at an issue price of C$0.239 per Common Share, an aggregate
---> of 11,021,052 Common Shares on June 6, 2017 at an issue price of C$0.247 per Common Share, and an aggregate of 11,761
--->,682 Common Shares on August 4, 2017 at an issue price of $0.214 per Common Share for aggregate gross proceeds to the 
--->Issuer of US$6,000,000.  The private placements were allocated equally between the Purchasers. 
As of the date of the last early warning report filed by Metallo on April 12, 2017, Metallo held 112,802,145 Common Sh
--->ares of the Issuer, representing 16.83% of the Common Shares of the Issuer as of such date.  Metallo currently owns 12
--->9,792,256 common shares of the Issuer, representing approximately 18.50% of the outstanding shares of the Issuer (incl
--->uding in the calculation Common Shares which have been issued under, and remain subject to the terms and conditions of
--->, the Issuer's Share Loan Plan).  
An early warning report in respect of the above transactions will be filed with the relevant Canadian securities regul
--->atory authorities. Copies of such reports may be obtained from SEDAR at www.sedar.com or by contacting Kyriakos Attiko
--->uris at +357 25 206 000.