Bonterra Reports Significant Mineral Resource Growth at Bachelor and Moroy, 100% owned Deposits and Provides Corporate Updates

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.