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Rt Minerals Corp. Signs Agreements to Acquire Four New Properties Within the Case Batholith of Northern Ontario

Mergers & Acquisitions Property Options & Staking

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RT MINERALS CORP. SIGNS AGREEMENTS TO ACQUIRE FOUR NEW PROPERTIES WITHIN THE CASE

BATHOLITH OF NORTHERN ONTARIO

Vancouver, B.C. – February 28, 2023 – RT Minerals Corp. (TSXV: RTM) (OTC Pink: RTMFF) (the “Company”

or “RTM”) is pleased to announce that it has entered into two separate property purchase agreements to

acquire an additional four properties totalling 113 claim blocks within the boundaries of the Case Batholith

in northern Ontario, and two other properties totalling 16 claim blocks also in northern Ontario. The four

Case Batholith properties are located in Agassiz Township (29 claims), Potter Township (51 claims),

Seguin/Challies Township (14 claims) and Bragg Township (19 claims).

In the first agreeme nt, t he Company will issue 250,000 post-consolidation common shares (for more

information on the Share Consolidation, please see news release dated February 6, 2023) and pay $4,100

to acquire 100% interest in 78 of the claims, of which the 14 Seguin/Challies Township claims are subject

to a 2% net smelter return (“NSR”) royalty that the Company may purchase 1% of the NSR for $1,000,000

at any time.

In the second agreement, the Compan y will issue 250,000 post -consolidation common shares and pay

$3,000 cash to acquire 100% interest in 51 Potter Township claims, which are subject to a 2% NSR royalty

that the Company may purchase 1% of the NSR for $1,000,000 at any time.

Closing of the transactions is subject to the successful completion of the Share Consolidation, a concurrent

post-consolidation financing of $450,000, and the approval of the TSX Venture Exchange.

The four new properties are located to the northwest of Power Metals Corp. (“Power Metals”) Case Lake

lithium/cesium discovery in Steel township, Ontario (Figure 1). All of the claim blocks have been acquired

on the basis of magnetic signatures resembling east - west trending pegmatitic dykes and laccolith

structures contained within the tonalite/granodiorite rock assemblages of the Case Batholith.

The Potter and Seguin/Challies prospects contain vast exposures of outcrop that have been identified on

several vintages of satellite photography. Live satellite views strongly suggest the occurrence of long linear

pegmatitic dykes and ovoid intrusives on the surface.

Upon completion of the acquisitions, the Company will own 100% in terest in 256 highly prospective

lithium/cesium claims within the Case Batholith.

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Figure 1: Location map of proposed acquisitions in the Case Batholith

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.

Rare Earth Element mineralization that exists on the Power Metal Corp . Case Batholith properties is not

known to exist on the Company’s properties in the Case Batholith area.

About RT Minerals Corp.

RT Minerals Corp. is a junior exploration company listed on the TSX Venture Exchange under the symbol

“RTM”. The Company holds a 100% royalty -free interest in a portfolio of rare earth element, gold and

base metal properties in Ontario: the Ireland, Case Batholith Group, Milligan, Blakelock, McQuibban and

Timmins properties. The Company also holds an option to acquire a 100% inte rest in the Link-Catharine

RLDZ gold property located 22 km south-southeast of the town of Kirkland Lake, Ontario.

Ireland Property (Rare Earth Element – Case Batholith) is a royalty free 52 claim block of 421 Ha (1,040

acres) 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

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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

several well documented carbonatite complexes that contain Niobium, Iron, Titanium and Rare Earth

Element resources within various assemblages of carbonatite rocks.

Case Batholith Group (Rare Earth Element) consists of 91 claims of approximately 1,927 hectares (4,762

acres) covering the Case Batholith (the “Case Batholith Properties”) 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.

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 (129 Ha) located approximately 75 km northeast

of Timmins, Ontario, and is 100% owned by RTM. The Milligan property 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 (73 Ha) located approximately 75 km northeast

of Cochrane, Ontario, and is 100% owned 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 (153 Ha) 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.

Timmins Property (Base Metals) is a royalty free 16 -claim block (129 Ha) 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.

For more information on the Company and its properties, please visit the Company’s website at

www.rtmcorp.com.

FOR FURTHER INFORMATION CONTACT:

Douglas J. Andrews, B.Sc., M.Sc.

President and Chief Executive Officer

Telephone: 403-200-6542

RT Minerals Corp.

Telephone: 604-681-3170 Fax: 604-681-3552

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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 assum ptions. 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, availability of

financing, actual results of the Company’s exploration and other acti vities, 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 qu alified 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 th em to reflect new events or

circumstances save as required by applicable law.