Mr. Marc-Andre Pelletier reports

BONTERRA ANNOUNCES APPOINTMENT OF LESLEY ANTOUN TO ITS BOARD OF DIRECTORS

Lesley Antoun has joined Bonterra Resources Inc.'s board of directors as an independent non-executive director, effective immediately. Ms. Antoun will serve as chair of the human resources and compensation committee and a member of the audit and risk, nominating and governance, and technical, safety and sustainability committees of the board. Matthew Happyjack, who has been a director of the company since March, 2019, is stepping down as a director but will stay on with the company as a consultant focusing on stakeholder relations, specifically with the Cree First Nation of Waswanipi. Following the appointment of Ms. Antoun and the resignation of Mr. Happyjack, the board will continue to consist of seven directors, four of whom are independent.

Ms. Antoun has 30 years of leadership experience in engineering, marketing and program management, working with multinationals, private corporations and governmental entities in several industries, including mining, aerospace, transit and infrastructure. Her boutique consulting firm also has experience collaborating with first nation organizations. She serves as an independent director on the boards of Wainbee Ltd. and the Jacques Cartier and Champlain Bridges Inc. She chairs the human resource and compensation committee, in addition to serving on nominating and governance and enterprise risk committees. She is also an independent adviser to the board of directors of the Canadian Real Estate Association. Ms. Antoun is fluently bilingual in English and French. She holds a mechanical engineering degree from Concordia's Gina Cody School of Engineering and an MBA from McGill University's Desautels Faculty of Management. She is currently pursuing a sustainability and ESG (environmental, social and governance) certification from Global Competent Boards.

"We are pleased to welcome Lesley to our board during this exciting time as we prepare to collaborate with Gold Fields on the Phoenix joint venture, following their recent announcement of the Osisko Mining acquisition," said Cesar Gonzalez, executive chairman of Bonterra. "Lesley's extensive knowledge in governance, risk management and experience with first nations communities provides a valuable addition to our board. On behalf of the board, I would like to thank Matthew Happyjack for his contribution to the board over the last five years and look forward to working with him again as a consultant to the company, which we hope will continue to strengthen our relationship with local stakeholders, including first nations."

In conjunction with Ms. Antoun's appointment to the board, she is being granted incentive stock options to acquire a total of 300,000 common shares of the company pursuant to the company's stock option plan and subject to any regulatory approval. Each stock option vests immediately and is exercisable at a price of 28.5 cents per share for a period of five years from the grant date.

About Bonterra Resources Inc.

Bonterra is a Canadian gold exploration company with a portfolio of advanced exploration assets anchored by a central milling facility in Quebec, Canada. The company's assets include the Gladiator, Barry, Moroy and Bachelor gold deposits, which collectively hold 1.24 million ounces in measured and indicated categories and 1.78 million ounces in the inferred category.

In November, 2023, the company entered into an earn-in a joint venture agreement with Osisko Mining Inc. for the Urban-Barry properties, which include the Gladiator and Barry deposits. In August, 2024, Gold Fields Ltd. announced the acquisition of Osisko Mining for $2.16-billion. Over the next three years, Osisko Mining (now Gold Fields) can earn a 70-per-cent interest by incurring $30-million in work expenditures. This strategic transaction highlights Bonterra's dedication to advancing its exploration assets in a rapidly advancing and consolidating gold camp.

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