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 F134 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 by 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.
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 reinitiated, 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 mine 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 methods 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+.
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Figure 1 – Casa Berardi Long Section (Looking North)
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Figure 2 – F160 (Looking North)
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Figure 3 – F134 (Looking North)
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Table 1 – Drill Results Table
| Hole | Zone Easting Northing Elv. | Dip | Azi. | EOH | From | To | Length* Grade | ||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| (m) | (m) | (m) | (deg.) | (deg.) | (m) | (m) | (m) | (m) | (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 |
| 16.4 | 18.0 | 1.6 | 4.03 |
And And 21.6 30.0 8.4 2.75 Incl. 23.4 27.0 3.6 4.46
| Hole Zone Easting Northing Elv. | Dip | Azi. | EOH | From | To | Length* Grade | |
|---|---|---|---|---|---|---|---|
| (m) | (m) (m) (deg.) | (deg.) | (m) | (m) | (m) | (m) | (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 | |||
| 43.0 | 62.5 | 19.5 | 4.35 |
And 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
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“Qualified” Person” under NI 43-101 and is not independent of Orezone within the meaning of NI 43-101. To the best of Mr. Nickerson’s knowledge, information, and belief, there is no new material scientific or technical information that would make this disclosure inaccurate or misleading.
Competent Persons
In accordance with ASX Listing Rule 5.12, the information in this announcement relating to the Casa Berardi Mine is confirmed as an accurate representation of the available data for the project by Alexandre Nickerson, P.Eng, an employee of Orezone Quebec Inc., is a member of the Ordre des ingénieurs du Québec and has sufficient experience that is relevant to the style of mineralisation and type of deposit under consideration, and to the activity being undertaken to qualify as a Competent Person, as defined in the JORC Code. Mr. Nickerson has over 7 years’ experience and is a full-time employee as Geology Superintendent for Orezone Quebec Inc. Mr. Nickerson consents to the inclusion in this announcement of the matters based on this information in the form and context in which they appear.
Cautionary Note Regarding Forward-Looking Statements
This press release contains certain information that may constitute “forward-looking information” within the meaning of applicable Canadian Securities laws and “forward-looking statements” within the meaning of applicable U.S. securities laws (together, “forward-looking statements”). Forward-looking statements are frequently characterized by words such as “plan”, “expect”, “project”, “intend”, “believe”, “anticipate”, “estimate”, “potential”, “possible” and other similar words, or statements that certain events or conditions “may”, “will”, “could”, or “should” occur. Forward-looking statements in this press release include, but are not limited to, statements regarding the exploration potential at Casa Berardi; the continuity, extent and potential expansion of mineralization; the potential for future underground mining centers and pit expansions; the potential to increase underground mining rates; the timing, scope and results of current and future drilling programs; the delineation of additional mineral resources; the potential development of new exploration fronts; and the Company’s planned exploration activities and expenditures at Casa Berardi.
All such forward-looking statements are based on certain assumptions and analyses made by management in light of their experience and perception of historical trends, current conditions and expected future developments, as well as other factors management and the qualified persons believe are appropriate in the circumstances.
All forward-looking statements are subject to a variety of risks and uncertainties and other factors that could cause actual events or results to differ materially from those projected in the forward-looking statements including, but not limited to, delays caused by pandemics, terrorist or other violent attacks (including cyber security attacks), the failure of parties to contracts to honour contractual commitments, unexpected changes in laws, rules or regulations, or their enforcement by applicable authorities; social or labour unrest; changes in commodity prices; unexpected failure or inadequacy of infrastructure, the possibility of unanticipated costs and expenses, accidents and equipment breakdowns, political risk, unanticipated changes in key management personnel and general economic, market or business conditions, the failure of exploration programs, including drilling programs, to deliver anticipated results and the failure of ongoing and uncertainties relating to the availability and costs of financing needed in the future, and other factors described in the Company's most recent annual information form, management discussion and analysis filed on SEDAR+. Readers are cautioned not to place undue reliance on forward-looking statements.
Although the forward-looking statements contained in this press release are based upon what management of the Company believes are reasonable assumptions, the Company cannot assure investors that actual results will be consistent with these forward-looking statements. These forward-looking statements are made as of the date of this press release and are expressly qualified in their entirety by this cautionary statement. Subject to applicable securities laws, the Company does not assume any obligation to update or revise the forward-looking statements contained herein to reflect events or circumstances occurring after the date of this press release.
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JORC Code, 2012 Edition
All dollar amounts are in USD unless otherwise indicated
Section 1 – Sampling Techniques and Data
Criteria JORC Code Explanation Commentary
Nature and quality of sampling (e.g. cut channels, random chips, or Sampling Pre-production drilling NQ drill core samples are collected specific specialised industry standard measurement tools appropriate from whole core samples at a minimum interval of 0.5m techniques to the minerals under investigation, such as down hole gamma and a maximum of 1.0m. Samples are numbered and sondes, or handheld XRF instruments, etc.). These examples should bagged before dispatch to the mine laboratory.
not be taken as limiting the broad meaning of sampling.
Include reference to measures taken to ensure sample representivity Definition drilling NQ drill core samples are collected from half drill core cut evenly lengthwise with a diamond saw at and the appropriate calibration of any measurement tools or systems used. a minimum interval of 0.5m and a maximum of 1.0m. Samples are numbered and bagged before dispatch to the Aspects of the determination of mineralisation that are Material to mine laboratory. Remaining half core is kept on site as the Public Report.
control sample.
In cases where ‘industry standard’ work has been done this would be relatively simple (e.g. ‘reverse circulation drilling was used to obtain 1 Exploration drilling NQ drill core samples are collected from m samples from which 3 kg was pulverised to produce a 30 g charge half drill core cut evenly lengthwise with a diamond saw at for fire assay’). In other cases, more explanation may be required, a minimum interval of 0.5m and a maximum of 1.0m. such as where there is coarse gold that has inherent sampling Samples are numbered and bagged before dispatch by problems. Unusual commodities or mineralisation types (e.g. truck to the external lab Swastika Laboratory in Timmins, submarine nodules) may warrant disclosure of detailed information. Ontario. Remaining half core is kept on site as control sample.
Mine laboratory samples is split and submitted for assaying using a conventional fire assay procedure on 15 g subsample. Remaining sample pulps is kept for a limited time depending on the drilling purpose.
Swastika laboratory samples is split and submitted for assaying using a conventional fire assay procedure on 50 g sub-sample.
Drill type (e.g. core, reverse circulation, open-hole hammer, rotary air The Mineral Resource estimate includes a total of drill
Drilling techniques
blast, auger, Bangka, sonic, etc.) and details (e.g. core diameter, triple 17,271 diamond drill core holes. Core drilling is the unique or standard tube, depth of diamond tails, face-sampling bit or other drilling technique used to explore, define and delineate type, whether core is oriented and if so, by what method, etc.). mineralized zones. Most drilling used NQ core barrel and sometime HQ and BQ for deeper holes or to telescope through the Casa Berardi fault.
Core is oriented via a downhole survey of the boreholes using Reflex Instruments EZ-TRAC and Gyroscope.
Downhole surveys were completed on all holes at intervals of 3m. All data is validated by the mine professional geologist.
Method of recording and assessing core and chip sample recoveries Recovery from core holes is nearly 100%, the Casa Berardi
Drill sample
and results assessed. fault being most of the time where core recovery is
recovery
difficult.
Measures taken to maximise sample recovery and ensure representative nature of the samples. There is no relationship between sample recovery and grade.
Whether a relationship exists between sample recovery and grade and whether sample bias may have occurred due to preferential loss/gain of fine/coarse material.
Whether core and chip samples have been geologically and Logging protocols were followed to a level of detail suitable
Logging
geotechnically logged to a level of detail to support appropriate for support of the Mineral Resource and Ore Reserve Mineral Resource estimation, mining studies and metallurgical estimate. Core sample logging included qualitative data studies. such as lithology, alteration, mineralization, competence (RQD) and discontinuities. All core is photographed. Whether logging is qualitative or quantitative in nature. Core (or costean, channel, etc.) photography.
The total length and percentage of the relevant intersections logged.
If core, whether cut or sawn and whether quarter, half or all core Core samples are collected from whole (Pre-production
Sub-sampling
taken. drilling) and half-drill core (Definition and Exploration
techniques and
Drilling) cut lengthwise with a diamond saw.
If non-core, whether riffled, tube sampled, rotary split, etc. and whether sampled wet or dry.
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For all sample types, the nature, quality and appropriateness of the All whole core samples sent to the mine laboratory, which
sample
sample preparation technique. weigh approximately 10kg each, are entirely crushed to 80%
preparation
passing (P80) 6.3mm in a jaw crusher. Approximately 200g Quality control procedures adopted for all sub-sampling stages to to 250g of split material is crushed to a 95% minus 150-mesh maximise representivity of samples.
or 85% minus 200-mesh sample pulp using a ring-and-puck Measures taken to ensure that the sampling is representative of the pulverizer. The pulp is laid down on a rubber mat and in-situ material collected, including for instance results for field homogenized. A 15g sub-sample is then collected, weighed, duplicate/second-half sampling.
and analyzed by fire assay with an atomic absorption Whether sample sizes are appropriate to the grain size of the spectrometer (AAS) finish. All results, reported in grams per material being sampled. tonne, are sent electronically to the mine geology department.
Samples sent to Swastika Laboratory are dried in an oven at 80°C and then are entirely crushed to P80 1.7mm with a jaw crusher and split with a rotary splitter. Approximately one kilogram of the jaw-crushed sample is entirely pulverized to 90% minus 107μm in a ring-and-puck pulverizer. All pulverized material is placed on a rubber mat, homogenized, and transferred into disposable brown paper bags for weighing. A 30g aliquot of pulverized material is split out and analyzed by fire assay with an AAS finish. A second fire assay analysis is completed with a gravimetric finish for samples with gold results above 10g/t Au.
The nature, quality and appropriateness of the assaying and Reviews of the sampling, analytical, and quality assurance
Quality of assay
laboratory procedures used and whether the technique is considered and quality control (QA/QC) protocols used on the core
data and
partial or total. programs have been completed and acceptable levels of laboratory tests accuracy have been achieved.
For geophysical tools, spectrometers, handheld XRF instruments, etc., the parameters used in determining the analysis including Gold content in the solution is determined using atomic instrument make and model, reading times, calibrations factors absorption analysis.
applied and their derivation, etc. The QA/QC protocol since 2006 on core is to submit 5% Nature of quality control procedures adopted (e.g. standards, blanks, coarse reject duplicates, 5% Pulp Duplicates, 5% Blanks and duplicates, external laboratory checks) and whether acceptable levels 4% Standards.
of accuracy (i.e. lack of bias) and precision have been established.
The verification of significant intersections by either independent or The Competent Person has confirmed the sample
Verification of
alternative company personnel. preparation, security, analytical procedures and QA/QC sampling and undertaken are adequate for the purposes of the Mineral The use of twinned holes.
assaying Resource estimate and that there are no factors that Documentation of primary data, data entry procedures, data materially impact the reliability or accuracy of the dataset verification, data storage (physical and electronic) protocols.
employed in the calculation.
Discuss any adjustment to assay data.
There are very few twinned holes.
Accuracy and quality of surveys used to locate drill holes (collar and The diamond drill hole collars are spotted in the field and
Location of data
down-hole surveys), trenches, mine workings and other locations pegged using a differential global positioning system
points
used in Mineral Resource estimation. (DGPS) set to achieve sub-metre accuracy.
Specification of the grid system used. Underground diamond drill hole collars are spotted using a station total and underground surveyed plugs.
Quality and adequacy of topographic control.
The downhole survey of the boreholes was surveyed using a Reflex Instruments that measures several parameters, including the plunge of the borehole and the three components of the magnetic field. It relies on a compass to read the azimuth. The azimuth angles are validated against the measured intensity of magnetic field, and an accelerometer reading to ensure the compass was stable when measurements were taken. The magnetic azimuth is converted to the mine grid system. Downhole surveys are also surveyed with gyroscope (DeviGyro) for sector with BIF and deep holes.
Data spacing for reporting of Exploration Results. Underground Inferred Mineral Resources: Blocks in
Data spacing and
modelled mineral envelopes outside a mean distance of Whether the data spacing and distribution is sufficient to establish
distribution
the degree of geological and grade continuity appropriate for the ~25m. The mean distance of Inferred Mineral Resources is generally between 25m and 35m, and rarely up to 50m. Mineral Resource and Ore Reserve estimation procedure(s) and classifications applied. Inferred Resources: Blocks in modelled mineral envelopes outside a mean distance of ~35m. The mean distance of Whether sample compositing has been applied.
Inferred Mineral Resources is generally 60m or less.
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Down-hole composite length applied to samples used for underground and open pit estimation is 1.0m and 2.5m, respectively.
Casa Berardi is an orogenic gold deposit with reasonable continuity along vicinity of the Casa Berardi fault corridor. Support of the strong continuity of mineralisation along strike and at depth has been confirmed by few exploration holes, mapping of pit walls and underground development.
Whether the orientation of sampling achieves unbiased sampling of Drilling direction is generally opposite to the dip and
Orientation of data
possible structures and the extent to which this is known, considering orthogonal to the average strike of the lithological units,
in relation to
the deposit type. major fabrics, and wireframed mineralised domains. Drilling geological is favourably oriented south to north due to the average 70° If the relationship between the drilling orientation and the structure south plunge stratigraphy.
orientation of key mineralised structures is considered to have introduced a sampling bias, this should be assessed and reported if No sampling bias was deemed to have occurred.
material.
The measures taken to ensure sample security. Security measures are applied throughout the sampling,
Sample security
sample preparation, and analytical stages. The drill core retrieved by the drillers are collected and handled at the drill site by the drilling contractor. The sample bags are transported to the mine lab by the sample preparation technician. Finally, the exploration core samples are dispatched to the external laboratory by the laboratory driver.
The results of any audits or reviews of sampling techniques and data. In 2024, an independent audit of the 2021, 2022 and 2023
Audits or reviews
assay data for the Casa Berardi Mine was completed with acceptable results. The audit concluded that the drill-hole database is sufficient for geological and mineral domain modelling, mineral resource and mineral reserve estimation, and mine planning. Sampling and assaying methods used in the current program are consistent with those used in 2023.
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