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Bonterra Intersects 21.9 g/t Au over 4.4 m; Including 158.5 g/t over 0.5 m at the Barry Underground Project

Drill Results

Bonterra Intersects 21.9 g/t Au over 4.4 m;

Including 158.5 g/t over 0.5 m at the Barry

Underground Project

Val-d'Or, Quebec--(Newsfile Corp. - December 12, 2022) -

Bonterra Resources Inc. (TSXV: BTR)

(OTCQX: BONXF) (FSE: 9BR2)

("

Bonterra

" or the "

Company

") is pleased to announce more results

from the ongoing infill drilling campaign at the Barry underground project. The Company commenced a

125,000 metres ("

m

") drill program at the Barry underground deposit last August, which contains 0.5

million ounces of Measured and Indicated Mineral resources and 0.7 million ounces of Inferred Mineral

resources, as stated in the last mineral resource estimate (the "

2021 MRE

", see press release dated

June 23, 2021).

To date, 21,800 m (51 holes) of infill drilling has been completed from the surface,

mainly in the upper half of the Barry underground deposit. Since the previous release dated November

15, 2022, assays from 11 holes have been received. Highlights from these assays are presented in the

present release.

Highlights include:

21.9 g/t Au over 4.4 m, including 158.5 g/t Au over 0.5 m in hole MB-22-541

7.5 g/t Au over 2.8 m, including 30.3 g/t Au over 0.6 m in hole MB-22-542

13.0 g/t Au over 3.7 m, including 49.7 g/t Au over 0.5 m and 6.7 g/t Au over 3.9 m, including 27.2

g/t Au over 0.7 m and 4.3 g/t Au over 5.8 m, including 24.2 g/t Au over 0.5 m in hole MB-22-547A

8.1 g/t Au over 4.0 m, including 44.5 g/t Au over 0.7 m in hole MB-22-548

Marc André Pelletier, President and CEO, commented: "The ongoing infill drill program at Barry is

focused on the upper half of the underground deposit and continues to deliver high-grade results. It is

common to intercept more than one lens of mineralization in a single drill hole at Barry. For example,

numerous high-grade intercepts are reported across six different lenses in drill hole MB 22-547A;

highlighted by 13.0 g/t Au over 3.7 m in lens AB17; 6.7 g/t Au over 3.9 m in lens 800; and 4.3 g/t Au over

and 5.8 m in lens H11. The Company intends to continue infill drilling the Barry deposit next year with two

diamond drills on surface at a rate of approximately 6,000 m per month."

Diamond Drilling Results Highlights:

Figure 1 - Barry Project -Surface Plan, Holes, and Highlights Location

To view an enhanced version of Figure 1, please visit:

https://images.newsfilecorp.com/files/1528/147590_027d30df64475b98_001full.jpg

The ongoing infill drill program of the Barry underground project is designed to convert the Inferred

resources from the 2021 MRE into Indicated resources by decreasing the drill spacing to 25 m. The

program especially aims to delineate and expand high-grade mineralized shoots identified in the 2021

MRE. Results from recent assays, including those in this press release, underscore the economic

potential of the underground mineralization with high-grade intersections between 100 m and 300 m

below surface in well know mineralized lenses. For example, MB-22-541 reported 21.9 g/t Au over 4.4

m, including 158.5 g/t Au over 0.5 m in H8 Zone, 200 m below surface; MB-22-548 returned 8.1 g/t Au

over 4.0 m, including 44.5 g/t Au over 0.7 m from the H3 Zone, 300 m below the surface; MB-22-547A

returned 4.3 g/t Au over 5.8 m, including 24.2 g/t Au over 0.5 m from H11 Zone, 350 m below surface;

13.0 g/t over 3.7 m, including 49.7 g/t Au over 0.5 m 100 m below the surface from AB 17 Zone; and

lastly MB-542 reported 7.5 g/t Au over 2.8 m, 100 m below the surface from the AB 01 Zone. These

strong intercepts as well as certain intercepts highlighted in press releases throughout 2022 are shown

on Figure 2.

Figure 2 - Barry Project - Composite Long Section of the Barry Deposit

To view an enhanced version of Figure 2, please visit:

https://images.newsfilecorp.com/files/1528/147590_027d30df64475b98_002full.jpg

The sub-vertical 800 Zone and its surrounding H-series zones continue to provide high-grade drilling

results as highlighted by hole MB-22-547A returning 6.7 g/t Au over 3.9 m, including 27.2 g/t Au over 0.7

m and hole MB-22-542 returning 2.6 g/t Au over 4.2, including 14.5 g/t Au over 0.5 m (Figures 3 and 4).

Figure 3 - Barry Project - Cross Section 25 m, Hole MB-22-547A, looking southwest

To view an enhanced version of Figure 3, please visit:

https://images.newsfilecorp.com/files/1528/147590_027d30df64475b98_003full.jpg

Figure 4 - Barry Project - Cross Section 25m, Hole MB-22-542, looking southwest

To view an enhanced version of Figure 4, please visit:

https://images.newsfilecorp.com/files/1528/147590_027d30df64475b98_004full.jpg

Barry Deposit Geology

The Barry gold deposit is characterized by three dominant sets of structures, all dipping to the southeast.

The sub-vertical shear zones and the H-Series shear zones dipping 25 to 40 degrees are hosted within

intermediate to mafic volcanics and tuffs with local felsic intrusions. Contact zones dip at 50-65 degrees

along the lower and upper contacts of the D1, D2 and D3 felsic intrusions with mafic volcanics. Gold

mineralization is associated with disseminated sulfides within shear zones and veins with local visible

gold. The Barry deposit has been delineated over 1.4 kilometres along strike and 700 m below surface

and remains open for expansion.

Diamond Drill Hole Results Table:

The following table shows the significant intersections of the drill holes presented in this press release.

Program

Hole ID

From (m)

To

(m)

Length

(m)

Grade

(g/t Au)

Metal Factor

(Length *

Grade)

Zone

Underground Infill

MB-22-533

113.0

114.2

1.2

4.3

5.2

New H

Underground Infill

MB-22-535

96.5

120.0

23.5

1.2

27.5

D4

Underground Infill

MB-22-535

Including

106.1

110.5

4.4

2.9

12.5

D4

Underground Infill

MB-22-535

Including

106.1

106.7

0.6

9.7

5.8

D4

Underground Infill

MB-22-535

131.0

150.0

19.0

0.6

11.2

New H

Underground Infill

MB-22-535

154.5

197.5

43.0

0.1

6.0

New H

Underground Infill

MB-22-535

202.3

219.0

16.7

0.7

12.1

D2

Underground Infill

MB-22-535

Including

217.0

217.8

0.8

10.8

8.6

D2

Underground Infill

MB-22-536

59.8

66.0

6.2

1.1

7.1

AB18?

Underground Infill

MB-22-536

86.0

93.5

7.5

1.0

7.7

800

Underground Infill

MB-22-536

98.9

108.0

9.1

1.5

13.3

AB09

Underground Infill

MB-22-536

Including

98.9

102.1

3.2

2.7

8.8

AB09

Underground Infill

MB-22-536

128.0

137.7

9.7

0.9

9.1

AB03

Underground Infill

MB-22-536

Including

131.3

132.7

1.4

5.8

8.1

AB03

Underground Infill

MB-22-540

118.1

129.2

11.1

0.8

9.1

H6

Underground Infill

MB-22-540

195.3

197.5

2.2

2.6

5.6

H8

Underground Infill

MB-22-540

242.8

251.8

9.0

1.4

13.0

H1

Underground Infill

MB-22-540

Including

246.4

247.6

1.2

6.2

7.5

H1

Underground Infill

MB-22-541

198.7

203.1

4.4

21.9

96.2

H8

Underground Infill

MB-22-541

Including

199.3

199.8

0.5

158.5

79.3

H8

Underground Infill

MB-22-542

105.7

107.8

2.1

2.8

5.9

AB17

Underground Infill

MB-22-542

Including

106.7

107.8

1.1

5.1

5.6

AB17

Underground Infill

MB-22-542

120.8

125.0

4.2

2.6

11.0

800

Underground Infill

MB-22-542

Including

123.7

124.2

0.5

14.5

7.3

800

Underground Infill

MB-22-542

133.9

136.9

3.0

1.7

5.2

D5

Underground Infill

MB-22-542

142.4

145.2

2.8

7.5

21.1

AB01

Underground Infill

MB-22-542

Including

143.5

144.1

0.6

30.3

18.2

AB01

Underground Infill

MB-22-542

194.8

195.3

0.5

51.6

25.8

New H

Underground Infill

MB-22-542

291.8

294.1

2.3

5.3

12.2

H1

Underground Infill

MB-22-542

Including

291.8

292.8

1.0

10.2

10.2

H1

Underground Infill

MB-22-544

94.1

94.7

0.6

15.9

9.5

AB16

Underground Infill

MB-22-544

281.6

284.0

2.4

2.1

5.0

H1

Underground Infill

MB-22-545

83.8

91.8

8.0

1.0

8.3

H6

Underground Infill

MB-22-546

218.3

221.5

3.2

1.9

6.1

H8

Underground Infill

MB-22-546

392.0

395.8

3.8

1.7

6.5

H12

Underground Infill

MB-22-547A

76.0

78.2

2.2

5.2

11.4

AB16

Underground Infill

MB-22-547A

98.6

99.1

0.5

10.1

5.1

New H

Underground Infill

MB-22-547A

100.3

104.0

3.7

13.0

48.2

AB17

Underground Infill

MB-22-547A

Including

102.5

103.0

0.5

49.7

24.9

AB17

Underground Infill

MB-22-547A

104.7

108.0

3.3

3.6

12.0

AB19

Underground Infill

MB-22-547A

137.0

140.9

3.9

6.7

26.0

800

Underground Infill

MB-22-547A

Including

138.5

139.2

0.7

27.2

19.0

800

Underground Infill

MB-22-547A

178.8

180.0

1.2

6.8

8.1

D2

Underground Infill

MB-22-547A

389.0

394.8

5.8

4.3

24.7

H11

Underground Infill

MB-22-547A

Including

391.5

392.0

0.5

24.2

12.1

H11

Underground Infill

MB-22-548

325.7

329.7

4.0

8.1

32.3

H3

Underground Infill

MB-22-548

Including

328.2

328.9

0.7

44.5

31.1

H3

Program

Hole ID

From (m)

To

(m)

Length

(m)

Grade

(g/t Au)

Metal Factor

(Length *

Grade)

Zone

Notes:

1

.

The meterage represents the actual length of the drilled lengths.

2

.

Estimated true widths for the Barry interpreted zones are as follows:

D series, AB series, H series 70% to 90% of core length, 800 series

50% to 70% of core length.

3

.

The mineralized intervals listed are above 0.5 g/t Au and with metal factor (grades x thickness) above 5.

4

.

Gold grades are uncut.

Quality Control and Reporting Protocols

The Barry project's drill core gold analyses are performed at the Company's Bachelor Mine analytical

laboratory (the "

Laboratory

") and at AGAT Laboratories in Val d'Or.

The Company employs a rigorous

QA-QC analysis program that meets industry standards.

The analyses are carried out by fire assay

(A.A.) with atomic absorption finish at Bachelor Mine Laboratory and with gravimetric finish for assay

above 10 g/t Au at AGAT laboratories.

Blanks, duplicates, and certified reference standards are

inserted into the sample stream to monitor the Laboratory's performance.

The Company's QA-QC

program requires that at least 10% of samples be analyzed by an independent laboratory.

These

verification samples are sent to ALS Minerals laboratory facility located in Val-d'Or, Quebec.

The

verifications show a high degree of correlation with the Laboratory's results.

Qualified Person

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

activities on the Barry 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 large portfolio of advanced exploration assets

anchored by a central milling facility in Quebec, Canada. The Company has four main assets, Gladiator,

Barry, Moroy, and Bachelor that collectively have a total of 1.24 million ounces in Measured and

Indicated categories, and 1.78 million ounces in Inferred category.

Importantly, the Company owns the

only permitted and operational gold mill in the region.

Bonterra is focused on graduating from advanced

exploration to a development company to deliver shareholder value.

FOR ADDITIONAL INFORMATION

Marc-André Pelletier, President & CEO

[email protected]

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

819-279-9304 | 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.

Cautionary and Forward-Looking Statements

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 Bonterra's exploration and development plans and placing

the Bachelor-Moroy deposit under long-term care and maintenance. 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 spacings 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/147590