RTG Mining Inc. — Regulatory Filings 2018

May 29, 2018

NOT FOR DISTRIBUTION TO UNITED STATES NEWS WIRE SERVICES OR FOR RELEASE IN THE UNITED STATES

RTG MINING INC. ANNOUNCES DONATION OF MEDICAL SUPPLIES FOR NEW ARAWA DISTRICT HOSPITAL IN BOUGAINVILLE

ANNOUNCEMENT TO THE TORONTO STOCK EXCHANGE AND AUSTRALIAN STOCK EXCHANGE

30 MAY 2018

RTG Mining Inc. (TSX: RTG, ASX: RTG) ("RTG" or the "Company") is pleased to announce that together with the Special Mining Lease Osikaiyang Landowners Association ("SMLOLA"), the company has donated much needed medical supplies to the new Arawa District Hospital, which is soon to be officially opened in Bougainville by the Australian High Commissioner and leading Government officials from both the Autonomous Bougainville Government and Papua New Guinea Government. We refer you to the attached Press Release by the SMLOLA.

RTG has been working with the SMLOLA team, who represent the Customary Landowners who own the minerals at the old Panguna Mine and is thankful for the opportunity to work with the team on this project. Good healthcare is one of the central tenets of life, that should be available to all and we are proud to be able to help the local communities in this way. Livelihood programs have always been an important part of our philosophy, with the RTG Management Team having won awards around the world for its social and environmental programs, having successfully developed and operated 7 mines in 5 different countries.

RTG remains committed to working with the SMLOLA, its members and the Autonomous Bougainville Government to progress the redevelopment of Panguna. We thank the SMLOLA and its members for their continued support and nomination as their preferred development partner should they be successful in securing an exploration licence for Panguna.

ABOUT RTG MINING INC.

RTG Mining Inc. is a mining and exploration company listed on the main board of the Toronto Stock Exchange and Australian Securities Exchange Limited. RTG is focused on a proposal with a landowner lead consortium to secure an exploration licence at the high tonnage copper-gold Panguna Project in Bougainville PNG and the high grade copper/gold/magnetite Mabilo Project in the Philippines, while also identifying major new projects which will allow the Company to move quickly and safely to production.

RTG has an experienced management team which has to date developed seven mines in five different countries, including being responsible for the development of the Masbate Gold Mine in the Philippines through CGA Mining Limited, and has B2Gold as one of its major shareholders in the Company. B2Gold is a member of both the S&P/TSX Global Gold and Global Mining Indices.

ENQUIRIES

Australian Contact US Contact President & CEO – Justine Magee Investor Relations – Jaime Wells

Tel: +61 8 6489 2900 +1 970 640 0611 Fax: +61 8 6489 2920 Email: jmagee@rtgmining.com jwells@rtgmining.com

CAUTIONARY NOTE STATEMENT

This announcement includes certain "forward-looking statements" within the meaning of Canadian and applicable securities legislation. Statements made or implied relating to the Private Placement and the anticipated closing thereof, the Company's objectives, strategies to achieve those objectives, the Company's beliefs, plans, estimates and intentions, and similar statements concerning anticipated future events, interpretation of exploration results, plans for further exploration and accuracy of mineral resource and mineral reserve estimates and related assumptions and inherent operating risks, are forward-looking statements. Forward-looking statements involve various risks and uncertainties and are based on certain factors and assumptions. There can be no assurance that such statements will prove to be accurate, and actual results and future events could differ materially from those anticipated in such statements. Important factors that could cause actual results to differ materially from RTG's expectations include uncertainties related to market conditions and demand for the Private Placement, the receipt of requisite shareholder and regulatory approvals, fluctuations in gold and other commodity prices and currency exchange rates; uncertainties relating to interpretation of drill results and the geology, continuity and grade of mineral deposits; uncertainty of estimates of capital and operating costs, recovery rates, production estimates and estimated economic return; the need for cooperation of government agencies in the development of RTG's mineral projects; the need to obtain additional financing to develop RTG's mineral projects; the possibility of delay in development programs or in construction projects and uncertainty of meeting anticipated program milestones for RTG's mineral projects and other risks and uncertainties disclosed under the heading "Risk Factors" in RTG's Annual Information Form for the year ended 31 December 2016 filed with the Canadian securities regulatory authorities on the SEDAR website at sedar.com. The forward‐looking statements made in this announcement relate only to events as of the date on which the statements are made. RTG will not release publicly any revisions or updates to these forward‐looking statements to reflect events, circumstances or unanticipated events occurring after the date of this announcement except as required by law or by any appropriate regulatory authority.

NOT FOR RELEASE OR DISTRIBUTION IN THE UNITED STATES

This announcement has been prepared for publication in Canada and Australia and may not be released or distributed in the United States. This announcement does not constitute an offer to sell, or a solicitation of an offer to buy, securities in the United States or any other jurisdiction. Any securities described in this announcement have not been, and will not be, registered under the US Securities Act of 1933, as amended (the "US Securities Act"), or any state securities laws, and may not be offered or sold in the United States except in transactions exempt from, or not subject to, registration under the US Securities Act and applicable US state securities laws.

SPECIAL MINING LEASE OSIKAIYANG LANDOWNERS ASSOCIATION INC.

LEVEL 2, KAROONA HOUSE, PANGUNA TOWN, PANGUNA DISTRICT, PO BOX 291 ARAWA, AUTONOMOUS REGION OF BOUGAINVILLE, PAPUA NEW GUINEA.

PRESS RELEASE 29 MAY 2018

DONATION OF K 325,000 FOR MUCH NEEDED MEDICAL SUPPLIES FOR ARAWA DISTRICT HOSPITAL

The Chairman of the Special Mining Lease Osikaiyang Landowners Association ("SMLOLA"), Mr Philip Miriori is pleased to announce that in line with the objectives of the Association, we have been working with the team at the new Arawa District Hospital including Dr Joe Vilosi Poten to assist in providing much needed medical supplies to the new hospital which is officially opening in a few weeks.

Mr Miriori said, "as we all appreciate, our region has been through very tough times and we have been working hard to deliver solutions for our people that will this time, see us prosper and benefit from Panguna. Healthcare and education are two important priorities for our people and we have been working with a team, RTG Mining Inc. ("RTG") who shares our passion and commitment to ensuring the livelihood of our local communities are a priority focus. They have kindly assisted us in making this K 325,000 donation for significant critical supplies to our newly opening hospital, to help bring it to world class standards, that will improve all our lives."

Dr Vilosi said " On behalf of all the people in our Arawa district, I would like to express my sincere appreciation for the generosity and help provided by Chairman Miriori, the SMLOLA and RTG, delivering much needed and lifesaving medicines to our new hospital at this crucial time. "

Mr Miriori said "this is a proud moment for us, that we can give back to our community so profoundly. This is also a significant step forward for SMLOLA and its members, which would not be possible without the support and commitment of RTG. We look forward to working closely with the Autonomous Bougainville Government to continue to build on the unity program we have invested heavily in, thankfully with a great deal of success and we will continue to work hard for our members to further improve the prosperity and livelihood of all of our families and for that matter, all Bougainvilleans."

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