Bonterra Resources Inc. announced the latest results from its 15,000 meters drill program at its 100% owned Desmaraisville South project. The purpose of the program was to test several new geological and geophysical targets along with historical near surface gold mineralization along the edges of the O'Brien Syenite Intrusion ("O'Brien Intrusive") and to identify the location of two regional corridors of deformation located further to the North of the project. The diamond drilling was conducted within seven kilometers of the Bachelor Mill Complex.

To date, Bonterra has received the assay results from 10,631 samples including QA-QC samples from the 57 diamond drill holes completed between August 23 and December 22, 2023. Assay results from 3,708 drill core samples are still pending. Please refer to press releases dated December 4 and December 14, 2023, for exploration updates on the Desmaraisville South project and the surrounding area.

Highlights of the Diamond Drilling Results: The diamond drilling program at the Desmaraisville South project had several objectives. The main objectives were to intersect gold mineralization; (1) on the eastern side of the O'Brien Intrusive, (2) along the extensions of various gold zones discovered in 2015 south of the O'Brien Intrusive ("South Area"), (3) related to geophysical targets on the west of the Bachelor Lake felsic intrusion ("Bachelor Lake Intrusive") enhanced by the presence of gold showings at surface and finally, (4) to test the deep southwest plunge of a zinc, lead, and silver mineralized body of the former Coniagas Mine. In addition, drill holes were positioned to improve the understanding of the stratigraphy on the property and to better position the boundaries of the various formations within it.

The Company is also seeking to better locate two major structures that affect these formations: the Opawica-Guercheville deformation corridor, which hosts numerous gold showings and deposits that have been the subject of historical resource calculations, and the Lamarck-Wedding Fault, host to the former Shortt Lake Gold Mine. Recent geophysical surveys on the Desmaraisville property should help Bonterra to properly position these two major structures. The gold mineralized zone containing 2.23 g/t Au over 8.2 m, including 9.26 g/t Au over 1.7 m in hole BRDS-23-021 is located at the contact between a tuff and a massive basalt rock unit.

The contact zone is moderately silicified and contains 2-3% pyrite in clusters. This type of gold-bearing environment is different from the Bachelor and Moroy gold-bearing environment. This new mineralized zone appears to be related to a structural lineament trending N080 to N070 and this lineament is more than one km in length.

Borehole BRDS-23-030 is more than 275 m deep and has intersected an atypical gold mineralization characterized by a strong epidote alteration with a low sulphide content. The best mineralized interval returned a value of 15.30 g/t Au over 1.0m. Drill hole BRDS-23-013 (Figure 4) intersected a gold enriched zone (0.80 g/t Au over 11.7 m, including 2.84 g/t Au over 1.4 m) associated with a strongly altered felsic dike west of the Bachelor Lake Intrusive.

The host rocks directly in contact with the dike are strongly silicified. It remains to be determined whether the IP geophysical anomaly is related to this mineralized zone and if so, the mineralized zone could extend for several hundred metres.