Opus One Gold Corp (TSX-V: OOR) is pleased to announce that drill hole NO-25-17 from the winter drilling program on its 100% owned Noyell project near the town of Matagami, Abitibi, Québec, Canada, returned 3.92g/t Au over 5.2 m from 411.5 to 416.7 m. The mineralized interval represents a true width of approximately 4.2 m within the Zone 1 structure.

Hole NO-25-17 was drilled in the western portion of Zone 1 at an intermediate depth of 375m. This interval indicates that Zone 1 appears to be open to the west along a steeply west dipping vector observed up to the surface. This hole also returned an interval of 3.3 g/t Au over 2.2 m (true width of 1.8 m) in Zone 2 from 471 to 473.2 m.

Near surface hole NO-25-18 returned an interval of 3.24 g/t Au over 5.5 m (true width of 5.1 m) from 66.3 to 71.8 m. This results clearly indicate that Zone 1 remains open to the east, at least near surface.

Hole NO-25-19 was drilled in the eastern portion of Zone 1 at an intermediate depth of 300 m. It clearly intersected Zone 1 but only a marginal interval of 2.07 g/t Au over 0.7 m was obtained from 375.4 to 376.1 m.

2025 Drill hole location and parameters to date are as follows:

2025 WINTER DRILLING RESULTS TO DATE

More assay results are expected soon.

Louis Morin, Opus One CEO commented: These results are again very important for the future of Zone 1. Hole NO-25-17 indicates that a steeply west dipping vector might keep the mineralized zone open to the west while hole NO-25-18 shows that the mineralization remains open to the east near surface.

Sample preparation, analysis and QAQC program

All core recovered is NQ size. All samples are described, labelled, cut (diamond saw) and bagged at Technominex’ facilities in Rouyn-Noranda. Samples are then shipped to AGAT certified Laboratory in Val D’or for preparation. Sample pulps are then shipped to various AGAT laboratories in Canada for analysis. Samples are assayed for gold using by Fire Assay (50g), with ICP-OES Finish. All samples equal or above 10 g/t Au are submitted to ore grade gravimetric finish.

Opus One’s QAQC program consists of one control sample inserted, at Technominex’ facility, after 9 regular samples. Control samples consist of a certified blank and various gold grades certified material.

OPUS ONE Resources Inc.

Opus One Resources Inc. is a mining exploration company focused on discovering high quality gold and base metals deposits within strategically located properties in proven mining camps, close to existing mines in the Abitibi Greenstone Belt, north-western Quebec and north-eastern Ontario – one of the most prolific gold mining areas in the world. Opus One holds assets in the Val-d’Or and Matagami mineral districts.

An independent qualified person, Pierre O’Dowd P.Geo, has verified and approved the data disclosed, including sampling, analytical, and test data underlying the information or opinions contained in the written disclosure as required by section 3.1 and 3.2 of NI43-101.