Orezone Intercepts 3.28 g/t Gold Over 26.00m and 5.55 g/t Gold Over 15.00m at P17 Zone in Advance of Hard Rock First Gold

VANCOUVER, British Columbia, Dec. 03, 2025 (GLOBE NEWSWIRE) — Orezone Gold Corporation (TSX: ORE | ASX: ORE | OTCQX: ORZCF) (the “Company” or “Orezone”) is pleased to report shallow, high-grade confirmatory grade control drill results from the P17 Zone at its flagship Bomboré Gold Mine. The P17 Zone is a high-grade hard rock deposit outcropping at surface located at the southern end of the Bomboré mining lease. In addition to several phased oxide pits, which have locally been advanced into the hard rock, the P17 Zone will be a primary mill feed source in 2026 for the new hard rock plant, currently being commissioned.

Selected Drill Highlights¹:

Patrick Downey, President and CEO stated, “The results of the near-surface P17 Zone grade control drill program were successful in confirming the P17 resource and reserve models. Furthermore, the results serve to underscore the high-grade nature and overall continuity of mineralization within the P17 Zone.

This initial grade control drill program is centered on the first six months of planned production from the P17 Zone. Mining activities in this area of the pit are now underway, with mined ore scheduled to be fed to the mill in early 2026 once commissioning is complete.

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^{1. True widths of mineralization are between 75-80% of drilled lengths.} 

Commissioning of the stage 1 hard rock plant is well advanced, with the jaw crusher now commissioned and a crushed ore stockpile established. The SAG mill is now turning, with grinding media being added and first ore through the mill expected to follow very soon. Water testing of the CIL circuit is now complete, with the tanks to be filled and fresh carbon to be added by the end of the week. Overall, commissioning activities remain on schedule, with first gold expected in the coming days.

This is truly an exciting time for the Company, and I want to thank everyone involved for all their hard work and dedication. The commencement of production from the stage 1 hard rock plant represents a major milestone for Orezone, with overall gold production at Bomboré set to increase by 45% to 170,000 to 185,000oz in 2026. This will mark a significant cash flow inflection point, underscored by the Company’s solid balance sheet and record high gold prices.”

Figure 1: Stage 1 Hard Rock Expansion Commissioning

Figure 2: Bomboré Plan Map – Highlighting Location of P17 Grade Control Drilling and Associated Sections

Figure 3: P17 Composite Long Section – Highlighting Location of Grade Control Cross Sections and Further Exploration Upside Down Plunge of US$1,740/oz Pit Shell (Looking West)

Figure 4: P17 Grade Control Cross Section A-A’ (Looking North)

Figure 5: P17 Grade Control Cross Section B-B’ (Looking North)

Table 1: P17 Grade Control Drill Results

* Mineralized intervals are reported as downhole lengths. True widths of mineralization are between 75-80% of drilled lengths.
**Composite parameters: 0.45g/t Au cut-off with maximum 3m of internal dilution. No top cut applied.
***Assay Results Pending (ARP), No Significant Result (NSR).

About Orezone Gold Corporation

Orezone Gold Corporation (TSX: ORE, ASX: ORE, OTCQX: ORZCF) is a West African gold producer engaged in mining, developing, and exploring its 85%-owned flagship Bomboré Gold Mine in Burkina Faso. Construction of the stage 1 hard rock expansion is substantially complete, with first gold expected in early December. Combined production from the oxide and stage 1 hard rock operations is forecasted to total between 170,000 and 185,000 ounces in 2026.² The Company is also advancing the stage 2 hard rock expansion, which is forecasted to increase annual production to between 220,000 and 250,000 ounces.³

The technical report entitled Bomboré Phase II Expansion, Definitive Feasibility Study is available on SEDAR+ and the Company’s website.

Contact Information

Patrick Downey
President and Chief Executive Officer

Kevin MacKenzie
Vice President, Corporate Development and Investor Relations

Tel: 1 778 945 8977
info@orezone.com / www.orezone.com

For further information please contact Orezone at +1 (778) 945 8977 or visit the Company’s website at www.orezone.com.

This announcement is authorised for release by Patrick Downey, President, CEO and Director.

The Toronto Stock Exchange neither approves nor disapproves the information contained in this news release.

Qualified Person and Competent Persons Statement

Alastair Gallaugher (CGeol), Exploration Manager for Orezone, is the Qualified Person under NI 43-101 and has reviewed and approved the scientific and technical information contained in this news release. 

Information in this press release that relates to grade control drilling and exploration results is based on, and fairly represents, information and supporting documentation prepared by Mr. Gallaugher, a Competent Person who is a Member of the Geological Society of London. Mr. Gallaugher has sufficient experience that is relevant to the style of mineralisation and type of deposit under consideration and to the activity which he is undertaking to qualify as a ‘Competent Person’ as defined in the 2012 Edition of the ‘Australasian Code for Reporting of Exploration Results, Mineral Resources and Ore Reserves’ (JORC Code). Mr. Gallaugher is an employee of the Company and consents to the inclusion in this announcement of all technical statements based on his information in the form and context in which it appears.

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<sup>2. Refer to the Company’s prospectus dated and lodged with ASIC on July 11, 2025 (the “ASX Prospectus”), a copy of which is available on the Company’s website. The Company confirms it is not aware of any new information or data that materially affects the information included in the Prospectus and that all material assumptions and technical parameters underpinning the mineral resources in the Prospectus continue to apply and have not materially changed. Please also see the Company’s MD&A for the three and nine months ended September 30, 2025.
3. Refer to footnote 2.</sup>

QA/QC

The mineralized intervals are based on a lower cut-off grade of 0.45g/t Au. Grade control samples are generated from in-house and contractor-owed reverse circulation (“RC”) drill rigs using face sampling hammers. Samples were collected directly from a cone splitter attached to the rig-side cyclone at 1m intervals by Orezone employees. The samples are received at the on-site assay laboratory operated by Intertek, split to 1kg, pulverised and leached using the PAL-1000 method. The slurry sample produced is analysed using atomic absorption spectrometry (“AAS”) for gold giving a total cyanide extractable gold value. The leach residues from all samples with a leach grade greater than or equal to 0.25g/t Au were prepared by Intertek and split to 50g using RSDs. A 50g aliquot was analyzed by fire assay at Intertek Bomboré lab. Orezone employs a rigorous Quality Control Program including a minimum of 10% standards, blanks and duplicates. The composite width and grade include the final leach residue assay results for most of the drill intercepts reported.

Cautionary Note Regarding Forward-Looking Statements

This press release contains certain information that constitutes “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 with respect to the commencement of production from the stage 1 hard rock plant representing a major milestone for Orezone, with overall gold production at Bomboré set to increase by 45% to 170,000 to 185,000oz in 2026, the high-grade nature and overall continuity of mineralization within the P17 Zone and the exploration program at Bomboré .

Forward-looking statements are not guarantees of future performance and involve known and unknown risks, uncertainties, assumptions and other important factors, many of which are beyond the control of the Company, its Directors, and management, and which could cause actual results or events to differ materially from those expressed or implied. Past performance is not a guide to future performance. Such risks and uncertainties include, but are not limited to, terrorist or other violent attacks, the failure of parties to contracts to honour commitments, unexpected changes in laws, rules or regulations or their enforcement, social or labour unrest, changes in commodity prices, failure or inadequacy of infrastructure, project cost overruns or unanticipated costs and expenses, accidents and equipment breakdowns, political risk, unanticipated changes in key management personnel, the spread of diseases, epidemics and pandemics, adverse market or business conditions, failure of exploration or drilling programs to deliver anticipated results, uncertainties relating to the availability and costs of future financing, and other factors described in the Company’s most recent audited annual consolidated financial statements, annual MD&A, Annual Information Form for the year ended December 31, 2024, and in Section 4 of the Prospectus, copies of which are available on SEDAR+ (www.sedarplus.ca) and the Company’s website. Readers are cautioned not to place undue reliance on forward-looking statements.

Forward-looking statements are based on the applicable assumptions and factors management considers reasonable as of the date hereof, based on the information available to management at such time. These assumptions and factors include, but are not limited to, assumptions and factors related to the Company’s ability to carry on current and future operations, including: development and exploration activities; the timing, extent, duration and economic viability of such operations, including any mineral resources or reserves identified thereby; the accuracy and reliability of estimates, projections, forecasts, studies and assessments; the Company’s ability to meet or achieve estimates, projections and forecasts; the availability and cost of inputs; the price and market for outputs, including gold; foreign exchange rates; taxation levels; the timely receipt of necessary approvals or permits; the ability to meet current and future obligations; the ability to obtain timely financing on reasonable terms when required; the current and future social, economic and political conditions; and other assumptions and factors generally associated with the mining industry.

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.

Appendix – JORC Code, 2012 Edition

Section 1 – Sampling Techniques and Data

Section 2 – Reporting of Exploration Results

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