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Monumental Minerals Announces Resignation of CEO

Management Changes

MONUMENTAL MINERALS ANNOUNCES RESIGNATION OF CEO

News Release - Vancouver, British Columbia – October 31, 2023 : Monumental Minerals Corp.

(“Monumental” or the “ Company”) (TSX-V: MNRL; FSE: BE5; OTCQB: MNMRF), announces that

Jamil Sader has resigned as chief executive officer and director of the Company , effective October 30,

2023. Michelle DeCecco , who currently serves as a director of the Company and as Chair of the Audit

Committee, will act as interim CEO while the board of directors reviews potential candidates to fill the

position permanently.

The board of direc tors of the Company thanks Mr. Sader for his efforts and commitment over his tenure

and wishes him the best in his future endeavors.

About Monumental Minerals Corp.

Monumental Minerals Corp. is a mineral exploration company focused on the acquisition, exploration, and

development of mineral resource properties in the critical and electric metals sector. The Company’s

flagship asset is the Jemi HREE project located in Coahuila, Mexico near the Texas, USA border which the

Company has an option to acquire 100% of the 3,650-hectare project. The Company has an option to acquire

a 75% interest and title to the Laguna cesium -lithium brine project located in Chile and a 50.01% interest

in the Salar De Turi lithium project in Chile.

On behalf of the Board of Directors,

/s/ “Michelle DeCecco”

Michelle DeCecco, Interim Chief Executive Officer and Director

Contact Information:

Email: [email protected]

Max Sali, VP Corporate Development and Director

Email: [email protected]

Neither the TSX Venture Exchange nor its Regulation Services Provider (as that term is defined in the

policies of the TSX Venture Exchange) accepts responsibility for the adequacy or accuracy of this news

release.

Forward Looking Information

Certain statements contained in this news release may constitute “forward‐looking information or statements” within

the meaning of applicable securities laws . Generally, forward -looking information can be identified by the use of

forward-looking terminology such as “expects” or “it is expected”, or variations of such words and phrases or

statements that certain actions, events or results “will” occur. These fo rward-looking statements are subject to a

number of risks and uncertainties. Actual results may differ materially from results contemplated by the forward -

looking statements. Factors that could cause actual results to differ materially from those in forward -looking

statements. Accordingly, the actual events may differ materially from those projected in the forward -looking

statements. When relying on forward -looking statements to make decisions, investors and others should carefully

consider the foregoing factors and other uncert ainties and should not place undue reliance on such forward -looking

statements. The Company does not undertake to update any forward -looking statements, except as may be required

by applicable securities laws.