

Val-d'Or, Quebec--(Newsfile Corp. - August 7, 2026) - Bonterra Resources Inc. (TSXV: BTR) (OTCQX: BONXF) (FSE: 9BR2) (the "Company") is pleased to announce that, it completed the mail out of the materials for its previously announced rights offering (the "Rights Offering") to eligible shareholders. A copy of the documents is also available for download from the Company's profile on SEDAR+ at: www.sedarplus.ca.

Val-d'Or, Quebec--(Newsfile Corp. - July 28, 2026) - Bonterra Resources Inc. (TSXV: BTR) (OTCQX: BONXF) (FSE: 9BR2) (the "Company") announces that it will be proceeding with a guaranteed rights offering to raise gross proceeds of up to $20,418,527. The Company will be offering 170,154,390 rights (the "Rights"), under CUSIP#09852X180 and ISIN#CA09852X1805, to holders of its common shares (the "Shareholders") at the close of business on the record date of August 6, 2026 (the "Record Date") on the basis of four fifths (0.8) of a Right for each one (1) common share held (the "Rights Offering").

Val-d'Or, Quebec--(Newsfile Corp. - June 30, 2026) - Bonterra Resources Inc. (TSXV: BTR) (OTCQX: BONXF) (FSE: 9BR2) ("Bonterra" or the "Company") announces election results of its 2026 annual general meeting held on June 30, 2026 ("2026 AGM"), representing its fiscal year ended 2025. Bonterra is pleased to announce that shareholders have approved all matters voted on at the 2026 AGM, including: (i) to set the number of directors at six (6); (ii) to re-elect Messrs.

Val-d'Or, Quebec--(Newsfile Corp. - June 4, 2026) - Bonterra Resources Inc. (TSXV: BTR) (OTCQX: BONXF) (FSE: 9BR2) ("Bonterra" or the "Company") is pleased to announce the expansion of the Barry deposit at depth, as a result of deep drilling conducted at the Barry property (the "Project"). The Project is under a definitive earn-in and joint venture agreement (the "JV Agreement") with Gold Fields Limited ("Gold Fields").

Val-d'Or, Quebec--(Newsfile Corp. - June 3, 2026) - Bonterra Resources Inc. (TSXV: BTR) (OTCQX: BONXF) (FSE: 9BR2) ("Bonterra" or the "Company") congratulates Windfall Mining Group Inc. ("Windfall Mining"), a wholly owned subsidiary of Gold Fields Limited ("Gold Fields"), together with the Cree First Nation of Waswanipi, the Cree Nation Government and the Grand Council of the Crees (Eeyou Istchee), on the signing of a landmark Impact Benefit Agreement for the Windfall Project, known as the Uukiimau Agreement. Bonterra is partnered with Gold Fields on the Phoenix JV, which is adjacent to the Windfall Project, under a definitive earn-in and joint venture agreement (the "JV Agreement") with Windfall Mining (see press release dated November 28, 2023).

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).