Orezone Reports First Set of Drill Results from Casa Berardi Mine Including 16.10g/t Au over 6.7m and 6.47g/t Au over 21.5m
OREZONE GOLD CORPORATION
450-505 Burrard Street
Vancouver, BC, V7X 1M3
T: 778-945-8977
Orezone Reports First Set of Drill Results from Casa Berardi Mine Including
16.10g/t Au over 6.7m and 6.47g/t Au over 21.5m
May 19, 2026 – Vancouver, BC - Orezone Gold Corporation (TSX: ORE | ASX: ORE | OTCQX: ORZCF) (the
“Company” or “Orezone”) is pleased to announce the first set of drill results from its recently acquired
Casa Berardi gold mine, located in Quebec, Canada.
Selected Drill Highlights1:
• 6.47g/t over 21.5m (CBF-160-233) • 7.20g/t over 14.9m (CBF-134-125)
Incl. 8.94g/t over 12.7m Incl. 16.18g/t over 3.4m
• 4.35g/t over 19.5m (CBF-160-233) • 16.10g/t over 6.7m (CBF-160-230)
Incl. 5.86g/t over 6.4m • 5.51g/t over 18.0m (CBF-160-232)
Incl. 5.72g/t over 5.5m Incl. 9.33g/t over 3.5m
• 6.92g/t over 7.5m (CBF-134-127) • 11.97g/t over 3.5m (CBF-134-135)
Patrick Downey, President and CEO, commented “We are extremely pleased to release this first set of drill
results from Casa Berardi, which clearly demonstrates the mine’s significant and untapped exploration
upside. The results are from the near-surface F160 and F13 4 zones, and serve to support planned pit
expansions, and more importantly , further illustrate the down-plunge continuity of high -grade
mineralization in each zone . Taken together with historical drill results, these plunging zones of
mineralization represent potential future underground mining centers, which are located proximal to
existing underground infrastructure.
In addition to ramping -up underground exploration drilling at Casa Berardi, surface drilling of the F160
and F134 zones will remain ongoing. The delineation of F160 Zone at depth is expected to further
supplement the Company’s plans to increase underground mining rates by reopening the East Mine, while
future step -out drilling down plunge of the F134 Zone has the potential to open a significant new
exploration front in the Gap Zone.
Overall, we are incredibly encouraged b y these initial drill results at Casa Berardi, and look forward to
providing regular exploration updates as we incrementally ramp -up exploration to a sustained 80,000 -
100,000m/yr.”
F160 Zone
The F160 Zone hosts the operating F160 pit, which is located adjacent to the Casa Berardi process plant.
Mineralization is open outside of the current F160 life-of-mine pit, with mineralized lenses plunging both
to the east and west at 30-40 degrees. Ongoing drilling within the F160 Zone remains focused on testing
1. True widths of mineralization are between 75-80% of drilled lengths, reported results are uncapped.
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the down-plunge continuity of high-grade mineralization, with trade-off studies underway to evaluate an
expanded F160 pit and a future transition to underground mining.
Initial 2026 drilling of the F160 Zone returned several significant intercepts, including1:
6.47g/t over 21.5m (CBF-160-233) 16.10g/t over 6.7m (CBF-160-230)
5.51g/t over 18.0m (CBF-160-232) 4.35g/t over 19.5m (CBF-160-233)
5.40g/t over 5.4m (CBF-148-086) 6.17g/t over 4.2m (CBF-148-086)
Furthermore, as detailed in Figure 2, several notable historical results support the broader continuity of
mineralization at depth, which include1:
104.82g/t Au over 4.9m (CBE-0049) 33.55g/t Au over 3.9m (CBF-04-115)
25.80g/t Au over 3.0m (CBF-04-122) 8.62g/t Au over 14.7m (86882-0)
10.47g/t Au over 7.3m (CBS-13-558) 6.21g/t Au over 17.2m (84703-0)
5.17g/t Au over 26.5m (CBF-160-101) 5.03g/t Au over 24.2m (CBF-160-136)
13.08g/t Au over 4.0m (CBS-13-551) 12.04g/t Au over 3.5m (CBF-160-152)
10.79g/t Au over 4.7m (CBS-20-011) 12.05g/t Au over 3.4m (84753-0)
F134 Zone
The F134 Zone comprises multiple near -surface lenses of mineralization, plunging to the east at 40-50
degrees. The zone hosts the undeveloped F134 pit, with distal mineralization traced a further 750m down
plunge below the current designed pit limits. Ongoing drilling within the F134 Zone remains focused on
1) infill drilling to support an expansion of the F134 pit, and 2) down plunge infill and step-out drilling
targeting high-grade veins in support of future underground mining. As drilling continues to ramp -up at
Casa Berardi, one of the priority targets moving forward will be the broader delineation of mineralization
down plunge of the F134 Zone into the Gap Zone, which has seen limited drilling to date.
Initial 2026 drilling of the F134 Zone returned several significant intercepts, including1:
7.20g/t over 14.9m (CBF-134-125) 6.92g/t over 7.5m (CBF-134-127)
11.97g/t over 3.5m (CBF-134-135) 5.94g/t over 3.0m (CBF-134-116)
2.43g/t over 6.1m (CBF-134-136) 4.52g/t over 2.6m (CBF-134-134)
As detailed in Figure 3, there are several notable historical results which illustrate the broader continuity
of mineralization at depth including1:
8.63g/t Au over 4.9m (CBS-21-043) 9.95g/t Au over 4.5m (CBS-04-098)
5.86g/t Au over 4.5m (CBP-0414) 6.20g/t Au over 3.5m (CBS-04-123)
5.00g/t Au over 3.8m (CBE-0037) 4.73g/t Au over 3.0m (CBP-0507)
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Casa Berardi Exploration Outlook
Exploration drilling at Casa Berardi has recently been reinitiate d, with four exploration rigs now turning
and a fifth to be added in early June. The Company plans to complete 40,000 -60,000m of exploration
drilling this year at Casa Berardi, with plans to systematically ramp up to a sustainable 80,000 -
100,000m/yr moving forward.
The 2026 exploration program commenced with surface drilling at the F160 and F134 zones, with ongoing
drilling targeting down-plunge extensions at each zone. These near-surface zones, which are proximal to
existing underground infrastructure, represent significant and actionable exploration targets, and have
the potential to materially expand the current underground resource (M &I: 4.89Mt at 5.93g/t Au
containing 934,000oz, Inferred: 1.91Mt at 7.02g/t Au containing 432,000oz).2
More recently, underground drilling has commenced in the 118N Zone (~800m depth from surface) as a
follow-up to several significant historical intercepts on the north side of the Casa Berardi fault. Given that
the vast majority of underground mineralization identified to date at Casa Berardi is located on the south
side of the fault, this exploration upside to the north has significant potential implications in-terms of
future resource and production growth moving forward. We see supporting evidence for this thesis in the
open pits, where mineralization along secondary and tertiary structures to the north of the Casa Berardi
fault has locally been traced beneath the pits to depth of ~350m from surface.
Selected 118N Zone historical intercepts:
269.78g/t Au over 1.0m (CBP-1440)
14.34g/t Au over 2.6m (CBW-1018)
11.53g/t Au over 3.0m (CBW-1440)
As exploration drilling continues to ramp -up at Casa Berardi , future targets include the down -plunge
delineation of the well-established WMCP and Principal ore shoots at depth. In support of this drilling, the
Company has mobilized an underground mining contractor to site, which in addition to increasing min e
development rates, will be utilized to establish the requisite drill stations for this targeting.
2. For additional information regarding the Casa Berardi mineral resource estimate, including key assumptions, parameters and me thods used to estimate the
mineral resources, refer to the Casa Berardi Technical Report dated December 31, 2025, a copy of which can be found on SEDAR+.
OREZONE GOLD CORPORATION
450-505 Burrard Street
Vancouver, BC, V7X 1M3
T: 778-945-8977
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Figure 1 – Casa Berardi Long Section (Looking North)
OREZONE GOLD CORPORATION
450-505 Burrard Street
Vancouver, BC, V7X 1M3
T: 778-945-8977
- 5 -
Figure 2 – F160 (Looking North)
OREZONE GOLD CORPORATION
450-505 Burrard Street
Vancouver, BC, V7X 1M3
T: 778-945-8977
- 6 -
Figure 3 – F134 (Looking North)
Table 1 – Drill Results Table
Hole Zone Easting
(m)
Northing
(m)
Elv.
(m)
Dip
(deg.)
Azi.
(deg.)
EOH
(m)
From
(m)
To
(m)
Length*
(m)
Grade
(g/t Au)
CBF-134-116 134 625504 5492105 284 -62 360 297 257.0 260.0 3.0 5.94
Incl. 257.0 258.0 1.0 14.00
And 266.8 269.0 2.2 3.12
And 273.0 280.1 7.1 2.60
Incl. 274.0 275.4 1.4 6.41
CBF-134-124 134 625576 5492203 284 -46 360 135 45.5 47.1 1.6 3.89
And 64.5 67.0 2.5 2.22
CBF-134-125 134 625580 5492088 284 -63 356 372 315.0 329.9 14.9 7.20
Incl. 318.6 322.0 3.4 16.18
Incl. 323.0 326.2 3.2 8.93
CBF-134-127 134 625495 5492103 284 -58 356 277.5 170.0 177.5 7.5 6.92
Incl. 172.0 172.8 0.8 38.02
CBF-134-131 134 625085 5492195 284 -49 9 126 121.0 122.0 1.0 9.05
CBF-134-132 134 625148 5492295 284 -46 351 147 NSR
CBF-134-133 134 625461 5492039 284 -61 360 354 332.0 332.5 0.5 12.01
CBF-134-134 134 625426 5492144 284 -61 360 209 81.0 82.2 1.2 3.31
And 94.1 97.5 3.4 2.57
Incl. 94.1 94.9 0.8 7.20
And 115.5 118.1 2.6 4.52
And 135.6 140.0 4.4 2.29
CBF-134-135 134 625470 5492146 284 -51 2 162 99.5 103.0 3.5 11.97
Incl. 100.2 101.8 1.6 22.99
CBF-134-136 134 625344 5492105 284 -59 360 198 106.0 112.1 6.1 2.43
CBF-148-086 148 627476 5492601 284 -45 7 225 90.0 95.4 5.4 5.40
Incl. 93.5 94.9 1.4 9.91
And 98.1 100.5 2.4 4.60
And 186.9 191.1 4.2 6.17
Incl. 186.9 188.5 1.6 12.01
CBF-159-002 160 628146 5492639 284 -49 358 414 362.3 364.7 2.4 8.98
And 374.5 376.1 1.6 2.96
CBF-160-230 160 627974 5492976 124 -45 7 120 51.0 56.2 5.2 4.18
And 62.0 68.0 6.0 2.94
Incl. 62.0 63.0 1.0 9.87
And 84.8 91.5 6.7 16.10
Incl. 88.5 90.3 1.8 45.84
And 103.0 106.0 3.0 2.84
CBF-160-232 160 627998 5492977 124 -55 5 120 3.6 11.3 7.7 3.38
And 16.4 18.0 1.6 4.03
And 21.6 30.0 8.4 2.75
Incl. 23.4 27.0 3.6 4.46
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Hole Zone Easting
(m)
Northing
(m)
Elv.
(m)
Dip
(deg.)
Azi.
(deg.)
EOH
(m)
From
(m)
To
(m)
Length*
(m)
Grade
(g/t Au)
And 38.0 56.0 18.0 5.51
Incl. 42.0 44.5 2.5 8.82
Incl. 50.0 53.5 3.5 9.33
And 62.3 63.5 1.2 2.94
CBF-160-233 160 627998 5492977 124 -65 9 111 3.0 4.0 1.0 21.12
And 12.0 33.5 21.5 6.47
Incl. 17.3 30.0 12.7 8.94
And 43.0 62.5 19.5 4.35
Incl. 49.6 56.0 6.4 5.86
Incl. 57.0 62.5 5.5 5.72
ABOUT OREZONE GOLD CORPORATION
Orezone Gold is an emerging intermediate gold producer with operations in Canada and West Africa. Its
Casa Berardi and Bomboré gold mines host significant mineral endowments, growth opportunities, and
exploration upside. The recently acquired Casa Berardi mine in Quebec has produced over 3.2Moz of gold
to date while the Bomboré mine was constructed and brought into production by Orezone in late 2022.
Orezone is led by an experienced management team committed to safe, sustainable, and responsible
mining practices, with a focus on delivering long-term value for all stakeholders.
CONTACT INFORMATION
Patrick Downey
President and Chief Executive Officer
Amanda Mallough
Vice President, Investor Relations
Tel: 1 778 945 8977
[email protected] / www.orezone.com
For further information please contact Orezone at +1 (778) 945-8977 or visit the Company’s website at
www.orezone.com.
The Toronto Stock Exchange neither approves nor disapproves the information contained in this news
release.
This announcement was authorized for release by Patrick Downey, Director, President & CEO.
Qualified Persons
Mr. Alexandre Nickerson, P. Eng., Geology Superintendent of Orezone Quebec Inc. has reviewed and
approved the scientific and technical information contained in this press release . Mr. Nickerson is a