Ms. Michelle DeCecco reports

MONUMENTAL MINERALS ANNOUNCES RESIGNATION OF CEO

Monumental Minerals Corp.'s Jamil Sader has resigned as chief executive officer and a director of the company, effective Oct. 30, 2023. Michelle DeCecco, who currently serves as a director of the company and as chair of the audit committee, will act as interim chief executive officer while the board of directors reviews potential candidates to fill the position permanently.

The board of directors of the company thanks Mr. Sader for his efforts and commitment over his tenure and wishes him the best in his future endeavours.

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 metals and electric metals sectors. 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, and a 50.01-per-cent interest in the Salar De Turi lithium project, also located in Chile.

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