RT Minerals Corp. Completes 31 km of Geophysics; Mobilizes Drill Program at Norwalk Gold Property Which Adjoins Red Pine Exploration, Surluga Property, Wawa, Ontario

Vancouver, British Columbia--(Newsfile Corp. - September 7, 2017) - RT Minerals Corp. (TSXV: RTM) (OTC Pink: RTMFF) (the "Company" or "RTM") announces the completion of 31 Line kilometres of Ground Magnetic and Induced Polarization ("IP") geophysical program on its 100% optioned, 1,000 acre Norwalk gold property (the "Property") near Wawa, Ontario. This program has identified over 70 near-surface IP generally north-south trending anomalies on 27 east-west lines that occur throughout the Property.

A Phase I drill program has mobilized and will test up to 15 priority drill targets with some 2,000 metres of core drilling. Initial assays should follow within 30 days. Drilling will continue if this drill program delivers promising results.

The drill program will be supervised by Mr. Mike Tremblay, the Company's Norwalk Field Consultant and property vendor. Mr. Tremblay is a very successful prospector with over 30 years' experience in gold, base metal and diamond exploration in Ontario. In 2013, the Ontario Prospectors Association presented the "Ontario Prospector Award" to Mike Tremblay, Jack Robert and Dr. David Palmer, Ph.D., P.Geo for discovery of the five million ounce Borden Lake Gold Deposit (now 100% Goldcorp), located about 140 kilometres east of RTM's Norwalk property.

Mr. Tremblay states: "The recent geophysical surveys have delineated several prominent IP and magnetic anomalies, some of which appear to correlate to historic gold showings on the Norwalk property. These anomalies represent excellent drill targets for gold mineralization."

The IP and magnetometer surveys over the historical Norwalk Gold Mine area map a complex array of north-trending IP anomalies with associated magnetic high responses for 400 metres north and 400 metres south of historical mine workings. Gold assays from 32 grab samples collected from muck piles, trenches and an adit at the historical Norwalk Gold Mine returned from 10 ppb to 64.04 g/Mt of gold (see RTM news release dated August 22, 2017). Several drill holes will test this anomalous area.

The Norwalk property is contiguous to the southern border of Red Pine Exploration Inc. ("Red Pine") with a 43-101 inferred resource (Surluga Gold Deposit) of 1,088,000 ounces of gold at 1.71 g/t gold using a 0.50 g/t gold cut-off grade, contained in 19.82 million tonnes open along strike and at depth (source: www.redpineexp.com).

Approximately three kilometres south of Red Pine's Surluga deposit is the Darwin-Gracie Mine Area where recent drilling returned 7.62 metres of 13.07 g/t Au, 4.45 metres of 23.17 g/t Au, 8.14 metres of 23.10 g/t Au, 4.03 metres of 3.1 g/t Au and 3.82 metres of 2.37 g/t Au (Red Pine news release dated May 4, 2017).

The Darwin-Gracie Mine Area is about 1,500 metres north of the Company's Norwalk property boundary. RTM's Qualified Person has not been able to verify results obtained by Red Pine on the Wawa Gold Project. Results obtained by Red Pine are from an adjacent property and do not indicate similar mineralization is present at Norwalk.

RT Minerals Corp. is one of the largest land holders in the Hemlo-Wawa-Borden Lake gold and diamond region. Mines present in the area are Richmont Mines Inc. (Island Gold Mine); Barrick Gold Corporation (Williams Mine - Hemlo Operations); and Wesdome Gold Mines Ltd. (Eagle River Complex - two gold mines with one mill). Advance gold properties include Goldcorp Inc. (Borden Project); Harte Gold Corp. (Sugar Zone property); and Red Pine Exploration Inc. (Wawa Gold property and Surluga Gold deposit).Rio Tinto Exploration Canada Inc. and De Beers have discovered kimberlite and related diamond-bearing rocks and continue to actively explore for diamonds in the area.

Mr. Kevin Kivi, P.Geo. is Qualified Person for RT Minerals Corp. and approves the technical content of this news release.

ABOUT RT MINERALS CORP.

RT Minerals Corp. is a junior resource company engaged in the acquisition, exploration and evaluation of primarily gold and diamond properties in Canada. The Company's principal mineral properties include:

Ballard Lake Property - 366 square kilometre (~141 square mile) diamond and gold property located approximately 50 kilometres northeast of Wawa, Ontario, in which the Company owns a 100% interest, subject to a 2% net smelter royalty;

Norwalk Property - Gold property located approximately 6 kilometres south of Wawa, Ontario, in which the Company has an option to earn a 100% interest, subject to a 2% net smelter royalty. The property is contiguous to the eastern border of Red Pine's Surluga property;

Dill River Property - Gold property located several kilometres southeast of Wawa, Ontario, in which the Company has an option to earn a 100% interest, subject to a 2% net smelter royalty; and

Dog Lake Property - Gold property located 59 kilometres northeast of Wawa, Ontario, in which the Company owns a 100% interest, subject to a 2% net smelter royalty.

The Company's common shares are listed on the TSX Venture Exchange under the symbol "RTM" and on the OTC Pink Market under the symbol "RTMFF" with DTC eligibility for trading in the United States.

For more information on the Company and its properties, please visit the Company's website at www.rtmcorp.com.

FOR FURTHER INFORMATION CONTACT:

Paul Antoniazzi
President and Chief Executive Officer
RT Minerals Corp.
Toll Free: 877-581-3170
Telephone: 604-681-3170
Fax: 604-681-3552

Neither the TSX Venture Exchange nor its Regulation Service Provider (as the term is defined in the policies of the TSX Venture Exchange) accepts responsibility for the adequacy of accuracy of this news release.

Forward-looking Statements

Certain statements in this press release relating to the Company's exploration activities, project expenditures and business plans are approximate and are "forward-looking statements" within the meaning of securities legislation. The Company does not intend, and does not assume any obligation, to update these forward-looking statements. These forward looking statements represent management's best judgment based on current facts and assumptions that management considers reasonable, including that operating and capital plans will not be disrupted by issues such as adverse market conditions, mechanical failure, unavailability of parts, labor disturbances, interruption in transportation or utilities, or adverse weather conditions, that there are no material unanticipated variations in budgeted costs, that contractors will complete projects according to schedule, and that actual mineralization on properties may not achieve any category of resource(s). The Company makes no representation that reasonable business people in possession of the same information would reach the same conclusions. Forward looking statements involve known and unknown risks, uncertainties and other factors which may cause the actual results, performance or achievements of the Company to be materially different from any future results, performance or achievements expressed or implied by the forward-looking statements. In particular, fluctuations in the price of gold, equity markets or in currency markets could prevent the Company from achieving its targets. Readers should not place undue reliance on forward-looking statements. There is no guarantee that drill results reported in this news release or future releases will lead to the identification of a deposit that can be mined economically, and further work is required to identify resources and reserves.We seek safe harbour.