Response to Press Release BY Bougainville Copper Limited Announcement to the Toronto Stock Exchange and Australian Stock Exchange

3446-7865-0119v1

NOT FOR DISTRIBUTION TO UNITED STATES NEWS WIRE SERVICES OR FOR

DISSEMINATION IN THE UNITED STATES

RESPONSE TO PRESS RELEASE BY

BOUGAINVILLE COPPER LIMITED

ANNOUNCEMENT TO THE TORONTO STOCK EXCHANGE

AND AUSTRALIAN STOCK EXCHANGE

14 DECEMBER 2017

The Board of RTG Mining Inc. (“RTG”, “the Company”) ( TSX Code: RTG, ASX Code:

RTG) refers to the recent press release dated 13 December 2017 by Bougainville

Copper Limited (“BCL”) which RTG considers to be misleading.

The BCL press release requiring clarification can be found here:

http://www.bcl.com.pg/unscrupulous-campaign-bcl-exposed/

In an effort to correct the false market announcement by BCL , RTG makes the

following points:

 The previous dispute with respect to the challenge to the leadership has been

resolved between Mr Miriori and Mr Daveona. Mr Daveona has acknowledged

that Mr Miriori has been the Chairman of the Special Mining Lease Osikaiyang

Landowners Association Inc. (“SMLOLA”) since December 2015 and remains the

Chairman.

 Mr Miriori and the SMLOLA were the plaintiffs having brought the matter to the

PNG National Court to resolve the issue and have the right to discontinue the

proceeding. Following the settlement, we confirm that discontinuance papers have

been filed with the National Court, bringing the matter to an end.

 At the Warden’s Hearing, the Chief Mining Warden and a number of supporters of

BCL referred to and acknowledged Mr Miriori as the Chairman of the SMLOLA.

 RTG is the nominated development partner in the joint venture agreement

establishing Central Me’ ekamui Exploration Ltd, who has applied for an

exploration licence over the old Panguna Mine and remain s the only applicant

with the support of the SMLOLA.

Many members of the SMLOLA oppose the return of BCL due to the environmental

and social impact of BCL's previous operation at Panguna, and the fact that BCL has

not paid compensation for those matters, which most members believe is owin g.

These factors obviously all predate, by decades, RTG's investment in the Landowner

led consortium.

3446-7865-0119v1

Page 2 of 2

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: [email protected] [email protected]

CAUTIONARY NOTE STATEMENT

This announcement includes certain “forward-looking statements” within the meaning

of Canadian and applicable securities legislation. Statement regarding interpretation of

exploration results, plans for further exploration and accuracy of mineral resource and

mineral reserve estimates and r elated 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 fluctuat ions 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 rate s, 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 deve lopment 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 end ed 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 re lease 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.