Mr. Paul Anderson reports

ABACUS ANNOUNCES APPOINTMENT OF NIINA MAKELA AS CHIEF FINANCIAL OFFICER

Abacus Mining & Exploration Corp. has appointed Niina Makela as chief financial officer of the company, effective June 1, 2025.

Ms. Makela is a Vancouver-based accountant with over 15 years of experience in the resource sector, including serving as senior accountant to the company since 2012. In the past, she has served as CFO for Maritime Resources Corp. and as controller/senior accountant to various private and public mineral exploration companies.

"On behalf of Abacus and its board of directors, I am very pleased to continue working with Ms. Makela in her new capacity of CFO," stated Paul Anderson, president and chief executive officer of Abacus.

The company would also like to sincerely thank Jeannine Webb for her valuable contributions and dedication to the company over the past 11 years. Ms. Webb will continue with the company as an adviser to management and to the board.

About Abacus Mining & Exploration Corp.

Abacus is a mineral exploration and mine development company currently focused on copper and gold in British Columbia and Nevada. The company's main asset is a 20-per-cent ownership interest, together with KGHM Polska Mied SA (80 per cent), in the proposed copper-gold Ajax mine located southwest of Kamloops, B.C., which has undergone a joint provincial and federal environmental assessment process. On Dec. 14, 2017, a decision was made by the B.C. Minister of Environment and Climate Change Strategy and the Minister of Energy, Mines and Petroleum Resources to decline to issue an environmental assessment certificate for the project. KGHM has recently reopened an office in Kamloops, B.C., to facilitate first nations, community and governmental engagement to advance the project toward a potential resubmission of the environmental application.

Abacus also owns a 100-per-cent interest in the Willow copper-gold property located near Yerington, Nev., and it controls the contiguous Nev-Lorraine claims subject to a 10-year lease agreement.

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