Orezone Intercepts Further High-Grade Mineralization At Bomboré Including 11.33 G/T Gold Over 11.00M And 10.28 G/T Gold Over 5.00M

(MENAFN- GlobeNewsWire - Nasdaq) VANCOUVER, British Columbia, June 10, 2025 (GLOBE NEWSWIRE) -- Orezone Gold Corporation (TSX: ORE, OTCQX: ORZCF) (the“Company” or“Orezone”) is pleased to provide additional drill results from its ongoing multi-year exploration campaign at its flagship Bomboré Gold Mine. These latest results are from multiple targets identified along the broader 14km long reserve defined Bomboré gold system, which remains open for further expansion.

Selected Drill Highlights ¹ :

• 11.33g/t Au over 11.00m (BBC6960)
• Au over 5.00m (BBC7132)
• 6.79g/t Au over 8.00m and 2.22g/t Au over 14.00m (BBC7141)
• 7.40g/t Au over 6.70m (BBD1124)
• 6.61g/t Au over 4.15m (BBD1341)
• 2.96g/t Au over 10.00m (BBC7158)
• 1.84g/t Au over 15.70m (BBD1346)
• 1.53g/t Au over 17.00m (BBC7148)
• 1.45g/t Au over 14.10m (BBD1344)

• 1.23g/t Au over 9.65m (BBD1329)

Patrick Downey, President and CEO stated,“These latest drill results further underscore the significant exploration upside at Bomboré and clearly illustrate that the broader system remains open to depth, along strike and outside of the currently delineated mineralized trends. At P17, drilling was successful in tracing higher-grade sub-zone mineralization a further 300m down plunge, while wide spaced step-out drilling at P16 and Siga have extended mineralization a respective 600m and 550m along strike. As we ramp up our exploration efforts at Bomboré, we continue to re-evaluate and update the project's existing exploration framework. The latest results also provide clear evidence that the hanging wall and footwall of the broader 14km long reserve defined system are prospective for additional near-surface discoveries, which was not previously recognized.

While Bomboré currently hosts a stated 5 million ounce global resource, which is the basis for the ongoing production expansion to 220,000 to 250,000 ounces per annum, the results of the current exploration program continue to provide support for the Company's long-term targeted resource base of 7 to 10 million ounces.”

P17 Trend: Higher-Grade Sub-Zones

Drilling at P17 was successful in further illustrating the down plunge continuity of the higher-grade sub-zones, the highlight of which was an intercept of 7.40g/t Au over 6.70m (BBD1124), which marks a 300m down plunge extension from the previously reported Au over 10.60m (BBD1081, Figure 3). Other notable sub-zone intercepts from this recent round of drilling include 5.22g/t Au over 4.00m (BBD1346), Au over 2.00m (BBD1341) and Au over 1.00m (BBD1335).

While the Company continues to define the structural setting of the P17 Trend, and further develop a predictive model for future sub-zone targeting, a key takeaway from the recent drilling was a better understanding of the controls of the higher-grade mineralization which comprise these sub-zones. It is now recognized that the higher-grades are associated with a later-stage quartz veining event, within which multiple occurrences of visible gold were observed for the first time (Figure 1). This marks an important development in the Company's understanding of the Bomboré system, which to date has been focused on a low grade, bulk tonnage open pit model. While still early-stage, the Company continues to evaluate the sub-zones along the P17 Trend, and other localized higher-grade areas along the broader 14km system, as future potential sources of higher-grade underground feed, beneath the open pits.

Figure 1: P17 Drill Core Photos – highlighting visible gold within higher-grade sub-zone

P17 Trend: selected high-grade sub-zone intercepts (previously reported):

• Au over 6.0m (BBD1066)
• Au over 4.6m (BBD0991)
• Au over 10.6m (BBD1081)
• 9.44g/t Au over 10.0m (TYD0041)
• 8.47g/t Au over 6.0m (BBD1132)
• 7.08g/t Au over 7.0m (TYC0123)
• 7.62g/t Au over 5.5m (TYD0035)
  

Near Surface Strike Extensions

In addition to extending the Bomboré mineral system to depth, and defining higher-grade sub-zones within, further delineating near-surface strike extensions to multiple resource areas continues to be another important area of investigation. A highlight of such recent targeting was at P16, where a series of step-out holes successfully identified mineralization an additional 600m to the north (Figure 2), as supported by intercepts of 0.92g/t Au over 14.35m (BBD1348), 0.71g/t Au over 9.00m (BBD1349), 0.68g/t Au over 17.00m (BBD1338) and 1.27g/t Au over 5.00m (BBC7180). These initial step-out results support the interpretation that P16 is a sub-parallel trend to the P17 Trend, which significantly expands the exploration model and potential within this area of the project.

Future targeting of the P16 strike extension will be centered on backfill drilling, with the goal of delineating open pittable near-surface mineralization, as well as to further investigate the potential for higher-grade sub-zones, as is observed within the P16 resource area.

P16 Trend: selected high-grade sub-zone intercepts (previously reported):

• Au over 14.0m (BBD0448)
• Au over 5.0m (BBD0448)
• 9.03g/t Au over 12.0m (BBC3241)
• 6.69g/t Au over 15.5m (BBD0443)
• 5.91g/t Au over 15.0m (BBD0447)
• 7.82g/t Au over 9.0m (BBD0213 )
• Au over 3.0m (BBD0768)
  

At Siga, initial testing of the southern strike extension yielded encouraging results, with mineralization intercepted approximately 550m to the south of the current mineral resource. This area of the project has not been previously explored with results of the initial scout drilling returning 5.93g/t Au over 0.85m and 6.35g/t Au over 1.00m (BBD1340). Follow-up drilling will comprise a series of wide spaced backfill fences to further delineate this broad southern extension.

Additionally, significant potential remains to extend resources to the north of the existing open pit designs in the North Zone. Localized 50-100m step-outs along the broader North Zone strike extension have demonstrated promising continuity, with initial results of 2.22g/t Au over 14.00m and 6.79g/t Au over 8.00m (BBC7141) and 2.21g/t Au over 7.00m (BBC7201). Further drilling along this northern strike extension, which has seen limited testing to date, is planned for upcoming campaigns.

Expanding Exploration Model

In addition to testing the extent of known mineralization, the Company continues to challenge the broader exploration model at Bomboré. The previously established exploration framework was centered on gold mineralization being confined to the Bomboré Shear Zone, with limited prospects within the hanging wall and footwall of the broader system. However, more recent targeted drilling, and local surface excavations outside of the mining lease, provide evidence to the contrary. Initial testing within the immediate hanging wall to the Siga Zone has led to the discovery of the HK Zone (Figure 2), which is marked by intercepts of Au over 11.00m (BBC6960), Au over 5.00m (BBC7132), 1.35g/t Au over 9.00m (BBC6976), and 1.46g/t Au over 6.00m (BBC7120).

With the prospects of identifying additional high-grade centers of mineralization outside of the Bomboré Shear Zone, the Company has recently commenced a near-mine and regional air core drill program, comprising a series of wide spaced drill fences within the mining lease and surrounding exploration tenements.

Figure 2 – Bomboré Plan Map Highlighting Selected Intercepts

Figure 3 – P17 Composite Long Section Highlighting Selected Intercepts (Looking West)

Table 1 – Highlight Drill Intercepts

Hole	Zone	Easting	Northing	Elv.	Dip	Azi.	EOH (m)	From (m)	To (m)	Length* (m)	Grade (g/t Au)	Type
BBD0206	P17	730599	1344300	267	-50	270	155	125.00	128.00	3.00	1.79	HR
BBD1069	P17 S	730270	1343125	261	-51	270	277	225.00	226.00	1.00	9.53	HR
and								251.75	260.60	8.85	1.39	HR
incl.								257.60	259.60	2.00	3.58	HR
BBD1084	P17 S	730355	1343175	261	-52	270	437	314.00	317.95	3.95	2.36	HR
BBD1104	P17 S	730365	1343250	261	-52	269	401	355.00	358.00	3.00	2.09	HR
incl.								357.00	358.00	1.00	5.17	HR
BBD1124	P17 S	730425	1343375	261	-49	272	495	459.00	465.70	6.70	7.40	HR
and								480.00	485.00	5.00	2.09	HR
BBD1131	North Zone	730395	1343325	261	-51	270	452	395.00	398.00	3.00	1.66	HR
and								416.00	419.00	3.00	1.01	HR
and								425.00	428.30	3.30	1.82	HR
BBD1329	North Zone	729034	1353901	283	-55	312	396	341.35	351.00	9.65	1.23	HR
and								356.50	362.50	6.00	1.53	HR
BBD1331	North Zone	728993	1353501	276	-52	312	330	42.00	43.00	1.00	8.06	OX
BBD1334	P17 S	730483	1343350	261	-53	271	519	278.10	283.10	5.00	1.72	HR
and								488.50	498.50	10.00	1.12	HR
incl.								494.50	497.50	3.00	2.51	HR
BBD1335	P17 S	730257	1343350	261	-50	270	396	47.00	48.00	1.00	15.61	HR
BBD1338	P16	729508	1344364	259	-45	263	291	193.00	210.00	17.00	0.68	HR
incl.								202.00	206.00	4.00	1.20	HR
and								257.00	262.00	5.00	2.43	HR
and								268.00	271.20	3.20	1.10	HR
BBD1339	P16	729597	1344551	260	-50	270	336	334.00	336.00	2.00	2.95	HR
BBD1340	P16	729000	1343900	260	-50	270	201	89.15	90.00	0.85	5.93	HR
and								191.00	192.00	1.00	6.35	HR
BBD1341	P17 S	730336	1342750	261	-50	270	156	123.75	127.90	4.15	6.61	HR
incl.								125.90	127.90	2.00	20.14	HR
BBD1343	P17 S	730392	1343125	261	-55	270	360	309.00	313.00	4.00	1.03	HR
BBD1344	P17 S	730371	1343501	261	-50	270	528	323.00	337.10	14.10	1.45	HR
incl.								323.00	332.70	9.70	1.87	HR
and								428.00	431.00	3.00	1.79	HR
BBD1345	P17 S	730340	1342800	261	-50	270	165	136.20	139.80	3.60	1.68	HR
and								146.00	148.55	2.55	5.02	HR
BBD1346	P17 S	730618	1344250	266	-50	270	225	137.25	141.00	3.75	1.17	HR
and								178.00	193.70	15.70	1.84	HR
incl.								186.70	190.70	4.00	5.22	HR
BBD1348	P16	729566	1344413	259	-50	270	303	168.00	173.15	5.15	1.54	HR
and								214.00	228.35	14.35	0.92	HR
incl.								222.00	228.35	6.35	1.03	HR
and								260.00	266.00	6.00	0.81	HR
BBD1349	P16	729517	1344443	259	-50	270	312	241.00	250.00	9.00	0.71	HR
and								255.00	270.00	15.00	0.57	HR
BBC6946	HK	728515	1348358	277	-50	270	60	13.00	17.00	4.00	2.53	OX
BBC6958	HK	728560	1348357	276	-50	270	75	70.00	75.00	5.00	1.19	OX
BBC6960	HK	728536	1348408	274	-50	280	114	48.00	59.00	11.00	11.33	OX
incl.								48.00	51.00	3.00	40.12	OX
BBC6962	HK	728829	1348272	278	-50	250	129	56.00	62.00	6.00	0.68	OX
BBC6963	HK	728844	1348280	277	-50	279	131	74.00	78.00	4.00	0.80	OX
BBC6975	HK	728537	1348357	276	-50	270	96	84.00	93.00	9.00	0.65	HR
BBC6976	HK	728564	1348402	275	-50	280	113	74.00	83.00	9.00	1.35	OX
BBC7120	HK	728557	1348302	276	-50	270	100	69.00	75.00	6.00	1.46	HR
BBC7122	HK	728563	1348386	275	-50	270	120	78.00	87.00	9.00	0.78	HR
BBC7129	HK	728603	1348435	274	-50	270	120	110.00	117.00	7.00	0.79	HR
BBC7132	HK	728524	1348333	278	-50	270	130	26.00	30.00	4.00	0.72	OX
and								82.00	87.00	5.00	10.28	HR
BBC7135	HK	728391	1348375	283	-50	270	60	32.00	36.00	4.00	1.31	OX
BBC7136	HK	728493	1348224	286	-50	270	100	27.00	36.00	9.00	0.65	OX
and								46.00	50.00	4.00	0.76	OX
and								60.00	63.00	3.00	2.26	OX
BBC7140	North Zone	729983	1354256	285	-50	312	126	8.00	11.00	3.00	0.67	OX
and								16.00	25.00	9.00	0.53	OX
incl.								21.00	24.00	3.00	1.09	OX
BBC7141	North Zone	730390	1354301	278	-45	312	100	27.00	41.00	14.00	2.22	OX
incl.								27.00	30.00	3.00	8.44	OX
and								66.00	74.00	8.00	6.79	HR
incl.								67.00	70.00	3.00	14.82	HR
BBC7142	North Zone	730082	1354338	282	-50	312	152	109.00	114.00	5.00	1.51	HR
BBC7147	P11	727951	1349499	291	-50	270	150	70.00	75.00	5.00	0.85	HR
BBC7148	P11	727932	1349408	292	-50	270	120	32.00	49.00	17.00	1.53	OX
incl.								39.00	41.00	2.00	7.62	OX
and								77.00	83.00	6.00	3.15	HR
incl.								77.00	80.00	3.00	5.32	HR
BBC7149	P11	727950	1349449	291	-50	270	150	90.00	97.00	7.00	1.62	HR
BBC7150	P11	727983	1349253	285	-50	270	125	87.00	93.00	6.00	0.92	HR
BBC7152	P11	728107	1349249	281	-50	270	120	74.00	77.00	3.00	1.64	HR
BBC7153	P11	728106	1349299	279	-50	270	118	49.00	53.00	4.00	1.01	OX
BBC7154	P11	728013	1349400	282	-50	270	150	98.00	100.00	2.00	1.47	HR
and								116.00	119.00	3.00	1.84	HR
BBC7157	Siga W	727966	1347455	276	-50	250	140	11.00	16.00	5.00	0.77	OX
and								90.00	101.00	11.00	0.96	HR
BBC7158	Siga E	728340	1347910	283	-50	250	120	67.00	77.00	10.00	2.96	HR
incl.								69.00	71.00	2.00	11.72	HR
BBC7161	Siga E	728615	1347638	277	-50	250	120	62.00	63.00	1.00	5.99	HR
BBC7162	Siga E	728669	1347497	274	-50	250	150	73.00	78.00	5.00	1.05	HR
BBC7163	Siga E	728624	1347428	273	-50	250	80	18.00	26.00	8.00	1.00	OX
and								30.00	33.00	3.00	1.35	OX
BBC7164	Siga E	728681	1347449	271	-50	250	114	42.00	47.00	5.00	1.23	OX
BBC7165	Siga E	728647	1347090	280	-50	250	126	96.00	99.00	3.00	5.26	HR
incl.								96.00	97.00	1.00	14.67	HR
BBC7166	Siga S	728213	1345896	266	-50	250	84	6.00	9.00	3.00	1.13	OX
BBC7180	P16	729608	1345000	261	-50	270	72	47.00	49.00	2.00	6.52	HR
and								54.00	59.00	5.00	1.27	HR
BBC7185	P8P9	728636	1352003	267	-50	312	123	2.00	8.00	6.00	0.63	OX
BBC7186	P8P9	728571	1351926	269	-50	312	138	2.00	9.00	7.00	0.86	OX
and								64.00	71.00	7.00	0.82	OX
incl.								64.00	68.00	4.00	1.12	OX
BBC7187	P8P9	728527	1351968	268	-50	312	136	133.00	136.00	3.00	1.62	HR
BBC7191	North Zone	729740	1354677	284	-49	310	69	5.00	15.00	10.00	1.12	OX
incl.								9.00	14.00	5.00	1.74	OX
and								30.00	35.00	5.00	0.59	OX
BBC7193	North Zone	729758	1354661	282	-51	310	114	25.00	34.00	9.00	0.47	OX
and								44.00	48.00	4.00	3.14	OX
and								53.00	67.00	14.00	0.88	OX
BBC7195	North Zone	729774	1354680	282	-51	310	113	47.00	49.00	2.00	2.58	OX
BBC7200	North Zone	730379	1354345	286	-50	310	80	12.00	20.00	8.00	0.62	OX
and								61.00	67.00	6.00	1.50	HR
BBC7201	North Zone	730417	1354345	279	-49	310	83	0.00	7.00	7.00	2.21	OX
and								12.00	20.00	8.00	0.62	OX
and								61.00	67.00	6.00	1.50	HR

* True widths for all zones are reported as a percentage of drilled lengths: North Zone 85%, P8/P9 70-85%, Siga 90%, P11 75-85%, P17S 70% and 90-100%, P17N 70% and HK 75-80%.

About Orezone Gold Corporation

Orezone Gold Corporation (TSX: ORE OTCQX: ORZCF) is a West African gold producer engaged in mining, developing, and exploring its 90%-owned flagship Bomboré Gold Mine in Burkina Faso. The Bomboré mine achieved commercial production on its oxide operations on December 1, 2022, and is now focused on its staged hard rock expansion that is expected to materially increase annual and life-of-mine gold production from the processing of hard rock mineral reserves. Orezone is led by an experienced team focused on social responsibility and sustainability with a proven track record in project construction and operations, financings, capital markets, and M&A.

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
... /

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

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

Qualified person

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.

QA/QC

The mineralized intervals are based on a lower cut-off grade of 0.28g/t in the Oxide+Upper Transition zone, and 0.45g/t Au in the Lower Transition+Hard Rock zone. The half-core drilling samples were cut using a diamond saw by Orezone employees. The samples were prepared by BIGS Global Burkina s.a.r.l. (“BIGS Global”) and then split by Orezone to 1 kg using Rotary Sample Dividers (“RSDs”). A 1kg aliquot was analyzed for leachable gold at BIGS Global in Ouagadougou, by bottle-roll cyanidation using a LeachWellTM catalyst. The leach residues from all samples with a leach grade greater than or equal to 0.25g/t Au were prepared by BIGS Global and then split by Orezone to 50g using RSDs. A 50g aliquot was analyzed by fire assay at BIGS Global.

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 exploration program and the significant exploration upside at Bomboré including that the broader system remains open to depth, along strike and outside of the currently delineated mineralized trends; the potential to materially expand the project's resource base from the current global 5 million gold ounces, to a targeted 7 to 10 million gold ounces longer term and the ongoing production expansion to 220,000 to 250,000 ounces per annum; evidence that the hanging wall and footwall of the broader 14km long reserve defined system are prospective for additional near-surface discoveries; the initial step-out results support the interpretation that P16 is a sub-parallel trend to the P17 Trend, which significantly expands the exploration model and potential within this region of the project; and significant potential remains to extend resources to the north of the existing open pit designs in the North Zone.

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, terrorist or other violent 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 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 diseases, 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 and management's discussion and analysis filed on SEDAR+ on . 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.

Photos accompanying this announcement are available at

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