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Bonterra Announces 2025 Exploration Plans at its 100% Owned Desmaraisville South Project

Exploration Programs

Bonterra Announces 2025 Exploration Plans at

its 100% Owned Desmaraisville South Project

Val-d'Or, Quebec--(Newsfile Corp. - July 9, 2025) -

Bonterra Resources Inc. (TSXV: BTR) (OTCQX:

BONXF) (FSE: 9BR2) (

"

Bonterra

" or the "

Company

"

)

is pleased to provide an update on its 2025

exploration plans at its 100% owned Desmaraisville South Project (the "

Project

"). During the first half of

the year, Bonterra's geology team has diligently worked on a comprehensive reinterpretation of the

geological setting surrounding the Bachelor Mill Complex. Leveraging the advanced capabilities of

VRIFY's AI-Assisted Mineral Discovery Platform known as DORA, the team has identified several high-

potential drill targets. As a result, Bonterra is planning a 10,000 to 12,000 meters ("

m

") drill program

expected to be completed by year-end (See Figure 1, which highlights the targeted areas, including

those selected with the assistance of VRIFY's DORA).

Marc-André Pelletier, President and CEO commented: "At our 100% owned Desmaraisville South

Project, Bonterra's exploration strategy is focused on discovering new mineralized zones near the

Bachelor Mill Complex. The 2025 exploration program builds on the success of the 2024 drilling

campaign, which identified several high-priority targets. We also plan to test additional promising targets

selected with the assistance of VRIFY's DORA. With the recent completion of our upsized financing,

Bonterra is fully funded to execute on this year's exploration plans."

2025 Exploration Plans

Drill 10,000 to 12,000 m near the Bachelor Mill Complex, including the Mistik 13, Hewfran and

other targets, including a predominantly base metals target and VRIFY's AI-generated targets.

Carry out field work, focusing on mapping, soil and rock geochemical sampling.

Reinterpret the 2023 gravimetric geophysical surveys.

Figure 1: Desmaraisville South Project - Prospective Drill Targets

To view an enhanced version of this graphic, please visit:

https://images.newsfilecorp.com/files/1528/258137_122cb3f4b4e66810_001full.jpg

Bachelor Mill Complex

Bonterra owns 100% of the Bachelor Mill Complex, a strategically important asset for future mining

operations within the Desmaraisville camp. The fully operational mill has a current capacity of 800 tonnes

per day ("

tpd

") and is powered by low-cost and sustainable hydroelectric grid power. Permitting is

underway to support a potential expansion to 1,800 tpd. The complex also includes a fully equipped

assay laboratory capable of processing approximately 6,000 samples per month, as well as a 100-

person camp, offices, workshops, and core logging facilities.

Qualified Person

M. Donald Trudel, P.Geo. (OGQ # 813), Director Geology for the Company, oversees all exploration

activities on the Desmaraisville Property and has compiled and approved the information contained in

this press release. Mr. Trudel is a qualified person as defined by National Instrument 43-101 on

standards of disclosure for mineral projects.

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 and joint venture agreement with Osisko Mining

Inc. for the Urban-Barry properties (the "

JV Agreement

"), which include the Gladiator and Barry

deposits. In October 2024, Gold Fields Ltd, through a wholly owned Canadian subsidiary, completed the

acquisition of Osisko Mining for C$2.16 billion. Gold Fields is now the counterparty to the JV Agreement

and can continue to earn a 70% interest in the joint venture by incurring C$30 million in work

expenditures until November 2026 (including expenditures incurred by Osisko Mining prior to October

2024). This strategic transaction highlights Bonterra's dedication to advancing its exploration assets,

marking a significant step towards development.

FOR ADDITIONAL INFORMATION

Marc-André Pelletier, President & CEO

[email protected]

2872 Sullivan Road, Suite 2, Val d'Or, Québec J9P 0B9

819-825-8678 | Website:

www.btrgold.com

Neither TSX Venture Exchange nor its Regulation Services Provider (as that term is defined in the

policies of the TSX Venture Exchange) accepts responsibility for the adequacy or accuracy of this

release.

Caution regarding forward-looking statements

This press release contains "forward-looking information" that is based on Bonterra's current

expectations, estimates, forecasts, and projections. This forward-looking information includes, among

other things, statements with respect to the earn in a joint venture agreement with Osisko Mining

announced on November 28, 2023, and the acquisition of Osisko Mining by Gold Fields announced on

August 12, 2024. The words "will," "anticipated," "plans" or other similar words and phrases are

intended to identify forward-looking information. This forward-looking information includes namely

information with respect to the planned exploration programs and the potential growth in mineral

resources. Exploration results that include drill results on wide spacing may not be indicative of the

occurrence of a mineral deposit and such results do not provide assurance that further work will establish

sufficient grade, continuity, metallurgical characteristics, and economic potential to be classed as a

category of mineral resource. The potential quantities and grades of drilling targets are conceptual in

nature and, there has been insufficient exploration to define a mineral resource, and it is uncertain if

further exploration will result in the targets being delineated as mineral resources. Forward-looking

information is subject to known and unknown risks, uncertainties and other factors that may cause

Bonterra's actual results, level of activity, performance, or achievements to be materially different from

those expressed or implied by such forward-looking information. Such factors include but are not limited

to uncertainties related exploration and development; the ability to raise sufficient capital to fund

exploration and development; changes in economic conditions or financial markets, environmental and

other judicial, regulatory, political, and competitive developments; technological or operational difficulties

or inability to obtain permits encountered in connection with exploration activities; and labour relations

matters. This list is not exhaustive of the factors that may affect our forward-looking information. These

and other factors should be considered carefully, and readers should not place undue reliance on such

forward-looking information.

To view the source version of this press release, please visit

https://www.newsfilecorp.com/release/258137