Mr. Karl Hanneman reports

INTERNATIONAL TOWER HILL MINES ANNOUNCES APPOINTMENT OF GOLD MARKET EXPERT DR. EDEL TULLY TO BOARD

International Tower Hill Mines Ltd. has appointed gold market expert Dr. Edel Tully to the company's board of directors, effective June 18, 2023, expanding the board from six to seven members.

"On behalf of the board of directors, I am pleased to welcome Dr. Tully. Her deep and vast experience in understanding the gold market will help the company maximize its tremendous leverage to higher gold prices," said Marcelo Kim, board chair.

Dr. Tully is a business leader with 20 years of experience in the precious metals market. She is currently the head of communications and financial markets development lead at the London Bullion Market Association (LBMA). Dr. Tully spent 10 years at UBS, where she was most recently global head, precious metal sales, and managing director, and prior to this, head of precious metals research. Before UBS, Dr. Tully was head of precious metals research at Mitsui and Co. Precious Metals Inc. Dr. Tully has been a frequent conference speaker and media guest, and is highly respected as a precious metals industry expert.

"I am excited to join International Tower Hill Mines' board of directors and look forward to contributing my precious metals sector experience to this very exciting company," said Dr. Tully.

About International Tower Hill Mines Ltd.

International Tower Hill Mines controls 100 per cent of the Livengood gold project located along the paved Elliott Highway, 70 miles north of Fairbanks, Ala. As of Dec. 31, 2022, the Livengood gold project has a measured and indicated mineral resource of 704.5 million tonnes at an average grade of 0.6 gram/tonne (13.62 million ounces (oz)). As reported in the technical report summary (TRS) filed as Exhibit 96.1 to the annual report on Form 10-K for the year ended Dec. 31, 2022, a portion of the mineral resources at the project have been converted into proven and probable reserves of 430.1 million tonnes at an average grade of 0.65 gram/tonne (nine million ounces) based on a gold price of $1,680 per ounce. The TRS has estimated the capital costs of the project at $1.93-billion, the total cost per ton milled at $13.12, the all-in sustaining costs at $1,171 per ounce, and net present value (5-per-cent discount) at $1,800/oz of $400-million and $975-million at $2,000/oz.

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