Mr. Jamil Sader reports

MONUMENTAL MINERALS ACKNOWLEDGES THE GENERAL VOTE RESULTS ON THE CHILEAN CONSTITUTION

Monumental Minerals Corp. is acknowledging the Sept. 4, 2022, vote by the citizens of Chile, electing not to support a proposed new constitution.

On Sept. 4, 2022, citizens of Chile voted not to support the constitutional text proposed by the Constitutional Convention. Monumental Minerals will continue to engage and work with all stakeholders, including governmental and indigenous groups, in Chile. The company will also continue to work within the framework and parameters of Chilean law and strongly believes in fairness and equality when doing so.

Jamil Sader, chief executive officer and director, comments:

"Chile's recent vote on a new constitution and the respectful and fair way it was undertaken demonstrates the country's deep democratic roots and a political system dedicated to fairness and transparency. Monumental looks forward to the continued positive engagement with all stakeholders on our lithium brine projects in the country."

About Monumental Minerals Corp.

Monumental Minerals 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 (heavy rare earth element) project located in Coahuila, Mexico, near the Texas, United States, border which the company has an option to acquire 100 per cent of the 3,650-hectare project. The company has an option to acquire a 75-per-cent interest and title to the Laguna cesium-lithium brine project located in Chile.

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