Bonterra Resources Inc.·Basic Materials

Val-d'Or, Quebec--(Newsfile Corp. - May 19, 2026) - Bonterra Resources Inc. (TSXV: BTR) (OTCQX: BONXF) (FSE: 9BR2) ("Bonterra" or the

Val-d'Or, Quebec--(Newsfile Corp. - May 13, 2026) - Bonterra Resources Inc. (TSXV: BTR) (OTCQX: BONXF) (FSE: 9BR2) (the "Company") announces that Marc-André Pelletier has tendered his resignation as President, Chief Executive Officer and a Director of the Company, effective May 31, 2026 in order to pursue another opportunity. To support an orderly transition, Mr.

Val-d'Or, Quebec--(Newsfile Corp. - May 4, 2026) - Bonterra Resources Inc. (TSXV: BTR) (OTCQX: BONXF) (FSE: 9BR2) ("Bonterra" or the "Company") is pleased to announce the inclusion of Mining Lease 886 (the "Barry Mining Lease") in the Phoenix JV (the "Project"). The Project is under a definitive earn-in and joint venture agreement (the "JV Agreement") with a subsidiary of Gold Fields Limited ("Gold Fields") (see press release dated November 28, 2023).

Val-d'Or, Quebec--(Newsfile Corp. - April 13, 2026) - Bonterra Resources Inc. (TSXV: BTR) (OTCQX: BONXF) (FSE: 9BR2) ("Bonterra" or the "Company") is pleased to present its 2026 exploration plans at its 100% owned Desmaraisville South Project (the "Project"). Bonterra is planning a 10,000 to 12,000 meters ("m") diamond drill program starting mid-April and followed by other exploration programs to be completed by year-end (See Figure 1, which highlights the targeted areas).

Val-d'Or, Quebec--(Newsfile Corp. - April 9, 2026) - Bonterra Resources Inc. (TSXV: BTR) (OTCQX: BONXF) (FSE: 9BR2) ("Bonterra" or the "Company") is pleased to announce that it has filed the NI 43-101 technical report (the "Report") supporting the Mineral Resource Estimates for the Barry and Gladiator deposits. The Report is titled "Updated Mineral Resource Estimate and Technical Report on the Barry and Gladiator Gold Properties, Phoenix Joint Venture Project, Northern Québec, Canada.

Val-d'Or, Quebec--(Newsfile Corp. - April 1, 2026) - Bonterra Resources Inc. (TSXV: BTR) (OTCQX: BONXF) (FSE: 9BR2) ("Bonterra" or the "Company") is pleased to announce updated Mineral Resource Estimates (the "2026 MREs") for the Bachelor and Moroy Deposits at its 100% owned Desmaraisville Gold Project. The 2026 MREs were independently prepared by P&E Mining Consultants Inc. ("P&E") on behalf of the Company in accordance with National Instrument 43-101 - Standards of Disclosure for Mineral Projects ("NI 43-101") and are effective as of February 18, 2026.
Bonterra Resources Inc., a junior mineral exploration company, engages in the acquisition, exploration, and evaluation of natural resource properties in Canada. It explores primarily for gold and silver deposits. The company's primary projects include the Gladiator, Moroy, and Barry deposits. It also owns 100% interest in the Bachelor Mill. The company was incorporated in 2007 and is headquartered in Val-d'Or, Canada.