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Bonterra Intersects 7.1 g/t Au over 7.6 m, Including 20.1 g/t over 1.4 m and 13.2 g/t over 1.4 m, and Extends the Near Surface Mineralization by 200 m to the Northeast of the Barry Gold Deposit

Val-d'Or, Quebec--(Newsfile Corp. - April 7, 2022) - Bonterra Resources Inc. (TSXV: BTR) (OTCQX: BONXF) (FSE: 9BR2) ("Bonterra" or the "Company") is pleased to announce results from the ongoing drilling campaign at the Barry project. Recent drilling results expand upon the northeast sector of the Barry deposit near surface and the southwest sector at depth. The latest results obtained from 43 diamond drill holes are designed to increase the 2021 mineral resource estimate ("2021 MRE") (see press release dated June 23, 2021). Drilling highlights include 7.1 grams-per-ton gold ("g/t Au") over 7.6 metres ("m") in the near-surface zone AB08, approximately 200 m northeast of the previously released intercept 8.0 g/t Au over 7.6 m (see press release dated October 5, 2021).

The Company is currently drilling at a rate of approximately 7,500 m per month, focused mainly on expanding its Barry and Gladiator gold deposits highlighted within the recently released 2021 MREs.

Highlights include:

  • 7.1 g/t Au over 7.6 m, including 20.1 g/t Au over 1.4 m and 13.2 g/t Au over 1.4 m in hole MB-21-417

  • 1.3 g/t Au over 12.0 m, including 3.0 g/t Au over 4.8 m in hole MB-21-404

  • 2.3 g/t Au over 9.0 m, including 6.8 g/t Au over 2.6 m in hole MB-21-409

  • 17.4 g/t Au over 4.4 m, including 146.0 g/t Au over 0.5 m in hole MB-21-410

  • 10.8 g/t Au over 5.1 m, including 23.1 g/t Au over 1.4 m in hole MB-22-416

  • 12.1 g/t Au over 6.1 m, including 73.5 g/t Au over 0.5 m in hole MB-22-420

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Marc André Pelletier, President and CEO commented: "These recent drill results confirm the extension of the mineralization near surface and at depth at Barry, extending the existing mineral resource by over 200 m to the northeast from the resource pit shell, and up to 50 m to the southwest of the underground resource. The continuation of the H12 zone and the discovery of new H series at depth demonstrate the potential to add more ounces beyond the existing 2021 MRE.

Work is currently underway on a Preliminary Economic Assessment ("PEA") based on the open pit resources at Barry in the 2021 MRE. The PEA is projected to be completed in late Q2 2022 and is expected to demonstrate the potential for restarting mining operations in the near term. The Company will soon undertake infill and definition drilling on the underground portion of the deposit to better understand the potential of an underground mining scenario.

At present, exploration activities at Barry include one drill rig drilling an additional 400 m to the northeast of the existing open pit resources and a second drill on regional exploration targets, approximately 5 kilometers to the northeast of the Barry deposit.

At the Bachelor Mine Complex, the permitting process for the mill and tailings management area expansion is ongoing, and the Company expects to provide additional information by mid-year with a COMEX permit expected by end of 2022 and provincial permits thereafter."

Figure 1 - Barry Project - Drill Hole Location Map.

To view an enhanced version of Figure 1, please visit:
https://orders.newsfilecorp.com/files/1528/119639_6a9e26a744e69b2c_001full.jpg

Figure 2 - Barry Project - Composite Long Section

To view an enhanced version of Figure 2, please visit:
https://orders.newsfilecorp.com/files/1528/119639_6a9e26a744e69b2c_002full.jpg

The Barry drilling campaign is currently focused on the expansion of key gold mineralized northeast of the 2021 MRE. Multiple diamond drill holes have been designed to confirm the open pit extension potential to the northeast. Several drill holes have confirmed the extension of the mineralization near surface with large intercepts grading above the open pit resource cut-off grade (1.0 g/t Au). Specifically, hole MB-21-417 extended the near surface mineralization by 200 m with 7.1 g/t Au over 7.6 m, including 20.1 g/t Au over 1.4 m and 13.2 g/t Au over 1.4 m in the AB08 zone and 3.9 g/t Au over 6.3 m, including 10.1 g/t Au over 2.0 m in a new H series zone (figure 2).

Expansion drilling has also confirmed the mineral continuity and expansion of several known H-Type zones, particularly the H12 zone with holes MB-22-420 and MB-22-416, which respectively intersected 12.1 g/t Au over 6.1 m, including 73.5 g/t Au over 0.5 m and 10.8 g/t Au over 5.1 m, including 23.1 g/t Au over 1.4m, expanding the mineralization by 75 m at depth and 50 m to the southwest beyond the 2021 MRE (figure 3).

Figure 3 - Barry Project - H12 Isometric view

To view an enhanced version of Figure 3, please visit:
https://orders.newsfilecorp.com/files/1528/119639_6a9e26a744e69b2c_003full.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 vertical and remains open for expansion.

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

Drill Hole

From (m)

To (m)

Meters (m)

Grade (Au g/t)

Zone

MB-21-339

749.5

750.0

0.5

1.2

MB-21-340

346.4

350.7

4.3

0.6

H6

MB-21-340

497.8

502.5

4.7

0.6

Vertical shear

MB-21-341

669.3

670.1

0.8

2.6

MB-21-342 to 343

Previously released

MB-21-344

638.5

639.5

1.0

1.1

H12

MB-21-345

543.5

545.0

1.5

1.5

H22

MB-21-345

649.0

649.5

0.5

0.9

New H

MB-21-345

653.9

655.1

1.2

1.9

New H

MB-21-346

Previously released

MB-21-347

635.9

636.4

0.5

1.3

H12

MB-21-348

336.1

336.9

0.8

1.2

New H

MB-21-348

562.0

563.0

1.0

1.1

MB-21-348

567.2

569.0

1.8

1.1

MB-21-349

480.9

481.6

0.7

1.5

H8

MB-21-349

663.5

664.0

0.5

3.4

H12

MB-21-350

357.7

358.8

1.1

4.9

Vertical shear

MB-21-350

430.1

431.9

1.8

2.3

H13

MB-21-351 to 360

Previously released

MB-21-361

515.2

516.7

1.5

4.6

H6

MB-21-361

570.2

574.8

4.6

1.4

New H

MB-21-362 to 365

Previously released

MB-21-366

644.1

644.9

0.8

1.1

H3

MB-21-367 to 372

Previously released

MB-21-373

349.0

350.2

1.2

0.6

MB-21-373

358.0

397.9

39.9

0.3

H20-H13

MB-21-373

417.5

423.9

6.4

1.2

H22

MB-21-373

Including

418.5

420.0

1.5

4.7

H22

MB-21-374 to 376

Previously released

MB-21-377

722.5

723.0

0.5

5.1

H12

MB-21-378

Previously released

MB-21-379

700.0

701.0

1.0

1.2

H12

MB-21-380 to 381

Previously released

MB-21-382

11.9

12.8

0.9

0.8

AB07

MB-21-382

22.4

24.2

1.8

1.0

AB07

MB-21-382

40.9

42.7

1.8

1.4

AB07

MB-21-382

48.0

48.5

0.5

2.5

AB07

MB-21-382

139.7

142.6

2.9

1.2

New H

MB-21-382

262.6

264.7

2.1

3.4

H16

MB-21-383

20.0

20.5

0.5

2.1

AB07

MB-21-383

25.0

25.5

0.5

2.8

AB07

MB-21-383

45.5

46.0

0.5

1.8

AB08

MB-21-383

98.2

99.0

0.8

1.1

New H

MB-21-383

108.0

109.4

1.4

1.1

New H

MB-21-383

119.0

120.0

1.0

1.2

New H

MB-21-383

251.0

251.5

0.5

0.7

MB-21-383

272.2

273.2

1.0

0.5

New H

MB-21-383

370.6

371.4

0.8

0.5

H12

MB-21-384

71.0

78.3

7.3

0.5

New H

MB-21-384

Including

75.1

76.0

0.9

1.6

New H

MB-21-384

271.6

272.4

0.8

1.1

New H

MB-21-384

290.5

291.3

0.8

1.6

MB-21-384

361.1

362.0

0.9

0.7

H12

MB-21-385

44.4

44.9

0.5

1.0

AB07

MB-21-385

62.0

74.5

12.5

0.6

AB08

MB-21-385

199.0

201.3

2.3

2.3

H27

MB-21-385

Including

199.7

200.3

0.6

9.0

H27

MB-21-385

217.4

218.5

1.1

3.7

New H

MB-21-385

305.9

306.4

0.5

0.7

Vertical shear

MB-21-385

329.0

329.5

0.5

1.1

Dyke

MB-21-385

383.0

384.1

1.1

1.7

H12

MB-21-386

50.0

51.0

1.0

1.5

AB 15

MB-21-386

59.2

65.5

6.3

0.7

AB 16

MB-21-386

74.4

78.0

3.6

1.7

AB 17

MB-21-386

Including

74.4

75.5

1.1

5.5

D2

MB-21-386

132.0

172.5

40.5

0.2

D2

MB-21-386

Including

152.5

154.0

1.5

1.9

D2

MB-21-386

212.7

213.5

0.8

0.6

H8

MB-21-387

16.0

17.0

1.0

1.2

AB07

MB-21-387

21.9

42.5

20.6

0.4

AB07/AB08

MB-21-387

Including

21.9

23.3

1.4

2.8

AB07/AB08

MB-21-387

106.7

108.8

2.1

1.3

New H

MB-21-387

195.5

196.0

0.5

3.7

MB-21-388

32.4

39.3

6.9

1.7

AB08

MB-21-388

Including

36.3

39.3

3.0

2.8

AB08

MB-21-388

245.4

246.5

1.1

1.5

New H

MB-21-388

288.3

289.1

0.8

0.6

MB-21-389

104.5

106.8

2.3

0.6

MB-21-389

131.8

133.4

1.6

1.1

MB-21-389

238.6

239.6

1.0

1.2

MB-21-390

17.0

20.3

3.3

0.6

AB08

MB-21-390

191.2

191.7

0.5

1.6

New H

MB-21-390

233.2

237.1

3.9

0.7

New H

MB-21-391

59.7

60.3

0.6

0.9

MB-21-391

103.8

111.0

7.2

0.5

New H

MB-21-391

Including

103.8

104.8

1.0

1.7

New H

MB-21-391

Including

108.7

110.0

1.3

1.0

New H

MB-21-391

120.2

120.7

0.5

0.5

New H

MB-21-391

268.0

268.8

0.8

0.6

New H

MB-21-392

250.7

251.2

0.5

1.4

H12

MB-21-393

16.0

16.8

0.8

4.2

New H

MB-21-393

144.0

144.5

0.5

0.9

New H

MB-21-393

150.0

150.5

0.5

0.9

New H

MB-21-393

153.2

158.0

4.8

0.9

MB-21-393

Including

153.2

154.0

0.8

2.8

MB-21-394

63.0

64.0

1.0

0.5

New H

MB-21-394

91.5

93.2

1.7

0.7

New H

MB-21-394

127.0

130.0

3.0

0.5

New H

MB-21-394

196.0

197.0

1.0

0.8

MB-21-395

14.8

16.0

1.2

3.1

1001

MB-21-395

95.0

98.0

3.0

0.6

1008

MB-21-396

130.0

133.2

3.2

2.3

New H

MB-21-396

Including

130.0

132.0

2.0

3.2

New H

MB-21-397

Anomalous values

MB-21-398

204.7

205.2

0.5

1.5

MB-21-399

53.7

54.4

0.7

1.8

H23

MB-21-400

125.4

125.9

0.5

0.5

MB-21-401

216.5

217.2

0.7

1.4

MB-21-402

No significant values

MB-21-403

81.4

81.9

0.5

0.5

MB-21-404

19.0

21.6

2.6

2.1

AB07

MB-21-404

Including

19.0

20.0

1.0

4.6

AB07

MB-21-404

20.8

21.6

0.8

1.0

AB07

MB-21-404

36.6

48.6

12.0

1.3

AB08

MB-21-404

Including

40.3

45.1

4.8

3.0

AB08

MB-21-404

111.9

142.5

30.6

0.6

1000

MB-21-404

282.7

283.4

0.7

1.4

New H

MB-21-405

21.9

25.8

3.9

0.7

AB07

MB-21-405

46.5

47.0

0.5

1.7

AB08

MB-21-405

54.1

57.0

2.9

1.0

AB08

MB-21-405

Including

110.0

110.5

0.5

3.7

AB08

MB-21-405

121.0

142.9

21.9

0.5

1000

MB-21-405

Including

121.0

122.1

1.1

1.7

1000

MB-21-405

328.4

331.0

2.6

0.5

New H

MB-21-406

41.0

42.5

1.5

1.8

AB07

MB-21-406

60.7

61.8

1.1

1.5

AB08

MB-21-406

70.6

71.9

1.3

1.2

AB08

MB-21-406

134.1

134.6

0.5

0.7

1000

MB-21-406

137.1

140.2

3.1

0.5

1000

MB-21-406

160.9

161.9

1.0

1.4

New H

MB-21-406

326.2

326.9

0.7

0.7

New H

MB-21-407

36.0

38.0

2.0

0.5

1000

MB-21-408

187.5

191.0

3.5

3.4

New H

MB-21-408

194.7

195.2

0.5

2.4

New H

MB-21-408

270.0

271.9

1.9

1.6

New H

MB-21-409

88.6

97.6

9.0

2.3

New AB

MB-21-409

Including

91.0

93.6

2.6

6.8

New H

MB-21-409

150.8

155.2

4.4

2.7

New H

MB-21-409

Including

150.8

151.8

1.0

6.3

New H

MB-21-409

Including

154.4

155.2

0.8

5.2

New H

MB-21-409

198.8

206.0

7.2

0.5

New H

MB-21-409

Including

204.3

205.0

0.7

3.7

New H

MB-21-409

265.7

266.7

1.0

0.6

New H

MB-21-409

270.0

270.5

0.5

3.8

New H

MB-21-410

102.2

109.5

7.3

1.9

New H

MB-21-410

Including

102.2

103.7

1.5

3.4

New H

MB-21-410

Including

107.7

109.5

1.8

4.1

New H

MB-21-410

165.9

168.5

2.6

0.8

New H

MB-21-410

210.0

214.4

4.4

17.4

New H

MB-21-410

Including

211.3

211.8

0.5

146.0

New H

MB-21-410

219.2

220.1

0.9

1.0

New H

MB-21-410

Including

278.8

279.8

1.0

0.8

New H

MB-21-411

33.1

39.9

6.8

1.0

New H

MB-21-411

Including

35.2

36.2

1.0

3.2

New H

MB-21-412

771.0

772.8

1.8

1.1

H5

MB-21-412

803.1

804.4

1.3

1.2

H12

MB-21-413

Results Pending

MB-21-414

579.0

579.5

0.5

1.0

Vertical shear

MB-21-414

615.7

616.3

0.6

0.6

MB-21-415

98.9

101.5

2.6

1.1

1000

MB-21-415

Including

98.9

99.8

0.9

2.5

1000

MB-21-415

106.0

110.0

4.0

1.8

1000

MB-21-415

Including

106.0

107.3

1.3

4.7

1000

MB-21-415

281.7

284.5

2.8

1.4

New H

MB-21-415

Including

283.5

284.5

1.0

3.7

New H

MB-21-416

795.2

795.8

0.6

1.3

H12

MB-21-416

796.5

797.3

0.8

1.4

H12

MB-21-416

798.7

803.8

5.1

10.8

H12

MB-21-416

Including

800.7

802.1

1.4

23.1

H12

MB-21-416

807.0

807.5

0.5

0.8

H12

MB-21-417

58.1

65.7

7.6

7.1

AB08

MB-21-417

Including

61.1

62.5

1.4

20.1

AB08

MB-21-417

Including

63.7

65.1

1.4

13.2

AB08

MB-21-417

67.2

68.6

1.4

0.7

AB08

MB-21-417

71.6

73.5

1.9

2.6

AB08

MB-21-417

Including

71.6

72.3

0.7

5.0

AB08

MB-21-417

97.0

103.3

6.3

3.9

New H

MB-21-417

Including

101.3

103.3

2.0

10.1

New H

MB-21-417

124.1

126.1

2.0

1.1

1000

MB-21-417

129.1

131.8

2.7

3.1

1000

MB-21-417

Including

130.0

131.3

1.3

4.1

1000

MB-22-418

153.3

154.8

1.5

0.8

MB-22-419

227.5

238.9

11.4

1.2

New H

MB-22-419

Including

229.7

230.7

1.0

4.7

New H

MB-22-419

Including

232.7

233.6

0.9

4.3

New H

MB-22-420

548.3

548.8

0.5

0.7

H12

MB-22-420

551.5

557.6

6.1

12.1

H12

MB-22-420

Including

552.0

552.5

0.5

73.5

H12

Notes:

1) The meterage represents the length of the drilled lengths.
2) Mineralized host rock adjacent to vein material with anomalous values are included in reported intervals.
3) True widths are estimated to be greater than 70% of the drill intersection length.
4) The shown mineralized intervals listed are above 0.5 g/t Au.
5) Gold results obtained between 0.1 and 0.5 g/t Au are represented as anomalous values.
6) Gold results obtained below 0.1 g/t Au are represented as no significant values.

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"). The Company employs a rigorous QA-QC analysis program that meets industry standards. The analyses are conducted by fire assay (A.A.) with atomic absorption finish. 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 Persons

Boris Artinian, P.Geo., (OGQ # 1546) Chief Geologist of the Company oversees all exploration activities on the Barry project and has compiled and approved the information contained in this press release. Mr. Artinian is a qualified person as defined by National Instrument 43-101 ("NI-43-101").

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-Andre Pelletier, President & CEO
ir@btrgold.com

2872 Sullivan Road, Suite 2, Val d'Or, Quebec 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.

Cautionary and 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. 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/119639