Rt Minerals Corp . Stakes Additional Claims to Expand Boundary of 100% Owned Sheba Property , Ontario

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W W W. R T M C O R P. C O M

NEWS RELEASE

RT MINERALS CORP . STAKES ADDITIONAL CLAIMS TO EXPAND BOUNDARY OF

100% OWNED SHEBA PROPERTY , ONTARIO

Vancouver, B.C. – July 7, 2023 – RT Minerals Corp. (TSXV: RTM) (OTC Pink: RTMFF) (the “Company” or

“RTM”) announces that it has staked an additional 150 mineral claims totalling approximately 2,650

hectares within the northwest-southeast trending Michie, Sheba and Alma Township corridor in the Abitibi

Greenstone belt, located within the Superior Province, 70 km southeast of Timmins Ontario ( Figure 1).

The additional claims surround the initial 54 Sheba North , Sheba South and Sheba East claim blocks

recently acquired by the Company (see June 13, 2023 and July 5, 2023 news releases) (collectively, the

“Sheba” property). The Sheba property is 100% owned and royalty-free.

The Sheba property is prospective for Cu, Ni, Co, Cr, Pt, and Pd mineralization (MNDM files 42A02SE2019).

Previous limited surface sampling activities have encountered 0.19% Cu, 0.14% Ni and 0.34% Cr

immediately west of the Sheba South block in ultramafic pyroxenite-peridotite assemblages. Whole rock

analysis of these units is substantially identical to the peridotites and associat ed Ni mineralization that

occurs in Langmuir Township, 36 km on trend to the northwest.

The pyroxenites-peridotites exhibit strong magnetic signatures and the entire claim block covers extensive

geophysical magnetic anomalies that are currently interpre ted as peridotite intrusive bodies within the

volcanic stratigraphy of the Abitibi Greenstone Belt (MNDM files M 82050, M82049, M82031, M82032

and M82056).

The exploration programs to be conducted within the entire 204 claim block in Michie, Sheba and Alma

Township are expected to be eligible under the Federal Government of Canada flow -through share and

critical minerals exploration tax credit programs, subject to acceptance. Work permitting programs will

now be initiated on at least 6 geophysical anomalies within the continuous 204 claim block for the 2023 -

2024 exploration seasons. The work programs are subject to Company financing.

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Figure 1: Location map of Sheba property

Qualified Person

The technical information contained in this news release has been reviewed and approved by Mr. Garry

Clark, P .Geo., a “Qualified Person” as defined in National Instrument 43-101 – Standards of Disclosure for

Mineral Projects.

About RT Minerals Corp: RTM is a junior exploration company listed on the TSX Venture Exchange under

the symbol “RTM”. The Company holds a 100% interest, largely royalty -free, in a portfolio of rare earth

element, gold and base metal properties in Ontario. The Company also holds an option to acquire a 100%

interest in the Link-Catharine RLDZ gold property located 22 km south-southeast of the town of Kirkland

Lake, Ontario.

Nordica Property (Cu, Ni, Co, Cr, Pd) is comprised of 34 claims in Nordica Township that cover the

ultramafic layered Nordica Intrusive Complex in the Abitibi Greenstone Belt, within the Superior Province,

60 km southeast of Timmins, Ontario. Nordica is prospective for copper, nickel, cobalt, chromium, and

palladium mineralization. Previous exploration activity on the Nordica property has encountered Cu

grading up to 0.292% (rock -grab samples), Ni up to 0.24% in drill core over 1.0 m, Co up to 614ppm

(outcrop), Cr up to 17.7% (grab -rock sample) and Pd up to 1.2ppb (outcrop chip and drill core over

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1.0m)(MNDM files OFR 6102). The property covers approximately 75% of the ultramafic layered intrusion

which is currently inferred to be approximately 4.0 km long, 250 m wide and 100m deep (MNDM files

20000008666/2000113735).

Kenogaming, Pharand I and Pharand II Properties (Ni, Cr, Co) consists of 38 claim blocks that are 100%

owned with 32 claims royalty free and 6 claims subject to a 2% NSR royalty. The properties are situated in

Kenogaming and Pharand Townships in the Northern Swayze Greenstone Belt, located within the Abitibi

sub-province of the Superior Province, southwest of Timmins, Ontario. The Properties are located within

the Hanrahan assemblage which is confined to the southeastern part of the Northern Swayze Greenstone

Belt. Cumulate ultramafic bodies a re the specific targets comprising the Kenogaming, Pharand I and

Pharand II prospects. In 1979, previous operators tested a strong magnetic anomaly with a 184.5m long

diamond drill hole, which intersected up to 0.25% nickel in carbonated and serpentinized cumulate

ultramafic with interbeds of chlorite and talc alteration over a 3.0m section at the bottom of the hole.

Further drilling is warranted on the Kenogaming, Pharand I and Pharand II prospects with the objective to

expand the historical Ni, Cr, Co mineralization within the Kenogaming intrusive.

Ireland Property (Rare Earth Element) is a royalty free 52 claim block covering an inferred carbonatite

complex (the “Ireland Complex”) located in Ireland Township, 45 km northeast of Smooth Rock Falls,

Ontario. The Ireland Complex is 100% owned by RTM and is approximately 4.0 km long, 2.8 km wide, oval

shaped and is positioned along a southern extensional splay fault contained within the Kapuskasing

Structural Trend. The Kapuskasing Structural Trend contains s everal well documented carbonatite

complexes that contain Niobium, Iron, Titanium and Rare Earth Element resources within various

assemblages of carbonatite rocks.

Case Batholith Group 1 (Rare Earth Element) consists of 90 claims covering the Case Batholit h centered

on Heighington Township, 85 km northeast of Cochrane, Ontario. The Case Batholith properties are 100%

owned and royalty free. The properties occur within the boundaries of the Case Batholith and are

specifically located in Heighington, Kenning, Sequin, and Case Townships. Five properties are situated 12

km north of the Power Metals Case Lake lithium/cesium discovery in Steel Township.

Case Batholith Group 2 (Rare Earth Element) consists of four properties (113 claim blocks) that are 100%

owned an d certain of the claims are subject to a 2% NSR royalty, within the boundaries of the Case

Batholith in northern Ontario. The four properties are in Agassiz township (29 claims), Potter township (51

claims), Seguin/Challies township (14 claims) and Bragg township (19 claims). The properties are located

to the northwest of Power Metals Corp. Case Lake lithium/cesium discovery in Steel township, Ontario. All

the claim blocks have been acquired based on magnetic signatures resembling east - west trending

pegmatitic dykes and laccolith structures contained within the tonalite/granodiorite rock assemblages of

the Case Batholith.

Sheba-Michie-Alma (Cu, Ni , Co, Cr, Pt), Ontario, are as summarized above herein.

Kendrey Property (Rare Earth Element) consists of 32 claims in the Kendrey and Colquhoun Townships

located 14 km southeast of Smooth Rock Falls, Ontario that are 100% owned and royalty free. The property

covers what appears to be a large, inferred carbonatite complex that is prospective for rare earth elements,

primarily niobium. The intrusive is approximately 2.8 km wide and 2.7 km long. It is positioned along a

southeastern extensional splay fault belonging to the Kapuskasing Structural Trend.

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Galna / Moody Property (Cu, Ni, Co, Cr) consists of four separate claim blocks totalling 24 cells in the

Galna and Moody Townships, located 35 km east of Iroquois Falls, Ontario. The Company acquired 100%

interest in the property by map staking.

Timmins Property (Base Metals) is a royalty free 16-claim block located approximately 50 km southeast of

Timmins, Ontario, and is 100% owned by RTM. The property features several mineralized fault systems

that suggest proximity to a base metal source.

Link-Catharine RLDZ Property (Gold) is comprised of fifteen unpatented single cell mining claims with a

total area of 220 hectares in one claim block. The Link-Catharine property is located 22 km south-southeast

of the town of Kirkland Lake, Ontario. RTM has an option to earn a 100% interest in this property subject

to a 2% NSR. Milligan Property (Gold) is a royalty free 16 -claim block located approximately 75 km

northeast of Timmins, Ontario, and is 100% owned by RTM.

Milligan Property (Gold) covers the southeast extension of the volcanic stratigraphy hosting the Eastford

Lake gold discovery of 142.2 g/t Au over 3.0 m announced by Explor Resources in 2009.

Blakelock Property (Gold) is a royalty free 9 -claim block located approximately 75 km northeast of

Cochrane, Ontario, and is 100% own ed by RTM. The property is host to a massive east -west trending

magnetic high intrusive complex that was subject to limited drilling in 1967.

Mcquibban Property (Gold) is a royalty free 19 -claim block located approximately 50 km north of

Cochrane, Ontario, and is 100% owned by RTM. The property hosts a strong 3.0 km long east-west trending

inferred oxide facies banded iron formation, in which one historical drill hole encountered a gold

mineralized interval of 5.47 g/t Au over 1.2m.

For more information, please visit the company’s website at www.rtmcorp.com.

On behalf of the Board of Directors

Douglas J. Andrews, MSc., BSc.

President and CEO

604-681-3170

For further information, please contact:

William Elston

Director and Investor Relations

604-725-0604

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: This news release contains certain forward-looking statements, which relate

to future events or future performance and reflect management’s current expectations and assumptions.

Such forward-looking statements reflect management’s current beliefs and are based on assumptions made

by and information currently available to the Company. Readers are cautioned that these forward-looking

statements are neither promises nor guarantees, and are subject to risks and uncertainties that may cause

future results to differ materially from those expected including, but not limited to, market conditions,

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availability of financing, actual results of the Company’s exploration and other activities, environmental

risks, future metal prices, operating risks, accidents, labor issues, delays in obtaining governmental

approvals and permits, and other risks in the mining industry. All the forward-looking statements made in

this news release are qualified by these cautionary statements and those in our continuous disclosure filings

available on SEDAR at www.sedar.com. These forward-looking statements are made as of the date hereof

and the Company does not assume any obligation to update or revise them to reflect new events or

circumstances save as required by applicable law.