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Highlights:

• Mineral Resources Estimates (“MREs”) issued for the Augmitto, Cinderella, Gamble and Astoria Deposits on a total of 22 gold-bearing lenses to a maximum depth of 900 meters.
  
• MREs in the Indicated Resources are 8.29Mt @ 3.44 g/t gold (918,000 ounces of gold)
• There are additional Inferred Resources of 5.778Mt @ 3.31 g/t gold (615,000 ounces of gold)
• Gold price = US$1,750.00/oz; USD: CAD exchange rate = 1.30.

MONTREAL, April 25, 2023 (GLOBE NEWSWIRE) -- Yorbeau Resources (TSX: YRB), (“Yorbeau” or the “Company”) is pleased to announce the release of new Mineral Resources Estimates (“MREs”) for its wholly owned Rouyn Gold Property (“Rouyn” or the “Property”), in the Rouyn-Noranda Mining Camp, Québec.

The new resources are 918,000 ounces of gold within the Indicated Resources category and 615,000 ounces of gold within the Inferred Resources category. The Property MREs were independently prepared by InnovExplo Inc., in accordance with National Instrument 43-101 (“NI 43-101”) and is dated April 18, 2023.

Terry Kocisko, Director & CEO states: “The Rouyn Gold Property has exceeded our expectations showing significant gold resources of more than 918 000 ounces indicated and 615 000 ounces inferred. The current Resources Update also demonstrates the potential for continued growth at Yorbeau. Given the success of our drilling at our Scott Lake VMS Project near Chibougamau, the success at Rouyn leaves the door open to increase the size of our MREs overall in precious and base metals as we continue to successfully advance our projects through 2023.”

George Bodnar, President & CFO, adds: “The new MREs at Rouyn include resources from the Augmitto-Cinderella, Gamble and Astoria Deposits covering a total of 22 lenses over a 6km trend to a depth of 1km along the Larder Lake-Cadillac Break. Geological expertise gained over the last 20 years along the Break indicates that the gold mineralization reaches depths of up to 3km, which leaves significant room for added gold potential at Rouyn. In the meantime, Yorbeau is assessing multiple scenarios to rapidly advance the Rouyn Gold Property towards eventual gold production.”

The final Technical Report (according to NI 43-101) will be filed with SEDAR within forty-five (45) days of the issuance of this news release. The report will be also available on Yorbeau’s website.

The MREs are outlined in the following table and notes:

Deposit	Cut-off (g/t)		Indicated mineral resource			Inferred mineral resource
	Ultramafic hosted	Argillite hosted	Tonnage	Au(g/t)	Ounces	Tonnage	Au(g/t)	Ounces
Augmitto-Cinderella	2.05	2.2	1,769,000	3.65	208,000	940,000	3.17	96,000
Astoria	2.05	2.2	3,236,000	3.30	343,000	3,956,000	3.43	437,000
Gamble	2.05	2.2	3,285,000	3.48	367,000	882,000	2.92	83,000
Total	2.05	2.2	8,290,000	3.44	918,000	5,778,000	3.31	615,000

Notes to accompany the Mineral Resource Estimate:

1. The independent and qualified persons for the mineral resource estimate, as defined by NI 43-101, are Marina Iund, P.Geo., Martin Perron, P.Eng. and Marc Beauvais, P. Eng. all from InnovExplo Inc. The effective date is April 18, 2023.
2. These mineral resources are not mineral reserves, as they do not have demonstrated economic viability. The MREs follows CIM Definition Standards (2014) and CIM MRMR Best practice Guidelines.
3. The results are presented undiluted, within underground constraining volumes (including ``must take’’ blocks and are considered to have Reasonable Prospect for Eventual Economic Extraction (RPEE).
4. The estimate encompasses three (3) gold deposits (Augmitto-Cinderella, Astoria and Gamble) subdivided into 22 individual zones (4 for Augmitto-Cinderella, 14 for Astoria and 4 for Gamble).
5. High-grade capping supported by statistical analysis was done on raw assay data before compositing and established on a per-zone basis varying from 25 to 100 g/t Au.
6. The estimate was completed using sub-block models in GEOVIA Surpac 2021.
7. Grade interpolation was performed with the ID² method on 1.5 m composites for the Astoria deposit and the ID² method on 1 m composites for the Augmitto-Cinderella and Gamble deposits.
8. A density value varying from 2.75 to 2.87 g/cm³ (mineralized domains), 2.82 g/cm³ (unmineralized materials), 2.00 g/cm³ (overburden) and 1.00 g/cm³ (mined out) was assigned.
9. The mineral resource estimate is classified as Indicated and Inferred. For the Augmitto-Cinderella and Gamble deposits, the Inferred category is defined with a minimum of two (2) drill holes for areas where the drill spacing is less than 80 m, and reasonable geological and grade continuity have been shown. The Indicated category is defined with a minimum of three (3) drill holes within the areas where the drill spacing is less than 50 m. For the Astoria deposit, the Inferred category is defined with a minimum of two (2) drill holes in areas where the drill spacing is less than 70 m, and reasonable geological and grade continuity have been shown. The Indicated category is defined with a minimum of three (3) drill holes within the areas where the drill spacing is less than 35 m. Clipping boundaries were used for classification based on those criteria.
10. The mineral resource estimate is constrained in conceptual stope designs (Deswik’DSO). The consider mining scenario is long hole stope mining. It is reported at a rounded cut-off grade of 2.05 g/t Au (ultramafic hosted) and 2.20 g/t Au (argillite hosted). The cut-off grades were calculated using the following parameters: mining cost = CA$91.50; processing cost and transport = CA$35.00; G&A and environment = CA$15.00; refining costs = CA$6.55; selling costs = CA$15.30; gold price = US$1,750.00/oz; USD:CAD exchange rate = 1.30; and metallurgical recovery = 90% (ultramafic hosted) to 96% (argillite hosted). The cut-off grades should be re-evaluated in light of future prevailing market conditions (metal prices, exchange rates, mining costs etc.).
11. The number of metric tonnes was rounded to the nearest thousand, following the recommendations in NI 43-101 and any discrepancies in the totals are due to rounding effects. The metal contents are presented in troy ounces (tonnes x grade / 31.10348).
12. The authors are not aware of any known environmental, permitting, legal, title-related, taxation, socio-political, or marketing issues, or any other relevant issue not reported in the Technical Report, that could materially affect the Mineral Resource Estimate.

About Yorbeau Resources Inc.

Yorbeau Resources is a Canadian public company (TSX: YRB) involved in gold and base metal exploration in Quebec, Canada. Its properties are in northwestern area of the province containing many significant deposits on the famed Abitibi Greenstone Belt, including major gold mines along the Larder Lake- Cadillac Break and several volcanic centers hosting major copper-zinc-gold deposits.

Yorbeau is focusing on its Rouyn Gold and Scott Lake Zinc-Copper projects which have demonstrated the most immediate and substantial prospects for discovery and eventual mine development. While Scott is very favorably located in the Chibougamau mining camp, Rouyn represents a consolidation of several contiguous properties strategically located on the famously productive Cadillac Break in the Rouyn-Noranda Mining Camp. Other holdings of the Company include its interest in the past producing Joutel Gold Mining Camp and the Beschefer Property adjacent to SOQUEM’s B-26 deposit in the Selbaie Mine area.

Qualified Person

The scientific and technical content of this press release has been reviewed, prepared and approved by Mr. Laurent Hallé, Senior Mineral Exploration Consultant with Yorbeau, who is a “Qualified Person” as defined by National Instrument 43-101 – Standards of Disclosure for Mineral Projects (“NI 43-101”).

Technical information related to the MREs contained in this news release has been reviewed and approved by Marina Iund, P. Geo., Martin Perron, P.Eng. and Marc R. Beauvais, P.Eng. of InnovExplo Inc., who are Independent and Qualified Persons as defined by NI 43-101, with the ability and authority to verify the authenticity and validity of this data.

For more information, please visit our website at https://www.yorbeauresources.com or contact:

Forward-Looking Statements: Except for statements of historical fact, all statements contained in this news release, including statements regarding future development and increase of the resources estimates, potential future production of gold at Rouyn and development of the Rouyn and Scott Lake projects and next development steps in connection with these projects, and future and objectives, are forward-looking statements that involve risks and uncertainties. There can be no assurance that these statements will prove to be accurate. Actual results and future events could differ materially from those anticipated in these statements. Yorbeau disclaims any obligation to update these statements.

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Montreal, Quebec, January 17, 2023, Yorbeau Resources Inc.  (TSX: YRB), (<<Yorbeau>> or the Company)

The Company announces drilling results on its new discovery west of the Gwillim fault on its Scott Lake property in Chibougamau, Quebec.  Five holes west of the fault all intersected copper, zinc, and silver mineralization over widths ranging from 0.75 meters to 6.6 meters. One of the intersections yielded 0.98% copper, 6.35% zinc and 1.36 ounces/t silver in hole SC-95 W (Table 1).  The discovery holes cover a lateral distance of 110 m and represent approximately 10% of the electromagnetic conductor, thus giving a significant surface favorable for the extension of the mineralization encountered to date. (Figure 1, Figure 2 et Figure 3).

A sixth drill hole during last fall's campaign intersected 1.64 meters of massive sulphide grading 7.7% zinc and nearly 1 ounce/ton of silver before encountering the Gwillim fault. This massive zone is possibly an extension of the Gap zone east of the Gwillim fault.

The last hole of the fall 2022 campaign (SC-93) was also subject to a geophysical survey. The results have just been interpreted and they indicate a robust response of the mineralized zone plunging eastward for a hundred meters. In addition to the discovery mineralization, two other weaker conductors were identified at 755 and 800 meters along the borehole. These two conductors coincide with cherts and low sulfide mineralization which could therefore indicate two new horizons favorable for copper and zinc sulfide mineralization.

Tableau 1 RÉSULTATS DES SONDAGES EN

The Scott Lake Project, which hosts significant mineral resources (see press release dated March 30, 2017) and for which a positive Preliminary Economic Assessment has been completed.  The VMS-style mineralization at the Scott Project includes several distinct stratiform massive sulphide lenses located along or near rhyolite-andesite/basalt contacts. In addition to sulphides, distinct areas of veinlet sulphides and scattered VMS style (stringers), which can either connect or not to massive sulphides, have been intersected over a distance of at least 2 kilometers in east-west directions. According to a Preliminary Economic Assessment ("PEA") conducted in late 2017 by Roscoe Postle Associates ("RPA"), the Scott Lake Project represents an opportunity to develop a mine located near the towns of Chibougamau and Chapais, a typical northern mining development environment, offering housing benefits as well as the availability of labour, equipments and materials necessary for the project.

ROUYN PROJECT

On December 19, 2022, the Company announced the termination by Iamgold Corporation of the option agreement for the Rouyn project dated December 17, 2018. Among other commitments, IAMGOLD was to make scheduled cash payments totaling C $4 million during the expense period stipulated in the option agreement, of which IAMGOLD had paid C$3.25 million prior to the termination of its option. IAMGOLD had to incur expenditures of C$9 million over the four-year option period in order to retain its option. As of December 31, 2022, it had incurred drilling and other expenses related to the Rouyn project of more than C$8.8 million.

Yorbeau is pleased with the amount of drilling IAMGOLD has done. As the Rouyn project is no longer committed to IAMGOLD, Yorbeau plans to explore other options to maximize the value of the project considering current economic conditions, including the current market price of gold. Notwithstanding IAMGOLD's termination of the option agreement, Yorbeau plans to work with its external consultants to complete the Rouyn mineral resource estimate in accordance with the Regulations. 43-101. IAMGOLD had undertaken preliminary work on this estimate under the option agreement.

The Rouyn property, which is now 100% owned by the Corporation, contains four known gold deposits in the six-kilometer-long Augmitto-Astoria corridor located in the western part of the property. Two of the four deposits, Astoria and Augmitto, have substantial underground infrastructure and have been the subject of technical reports that include resource estimates and have been filed in accordance with National Instrument 43-101 Mineral Project Disclosure.

The Scott Lake and Rouyn properties have both reached an advanced stage of exploration and are now amenable to development. With higher base metal and gold prices, the company is optimistic that both projects will move to an advanced level in the coming months. It is with this in mind that the Company continues its work and will explore all options to maximize the value of its projects and the company.

Yorbeau work is conducted under the supervision of Laurent Hallé P. Géo. He is a “Qualified Person” (as defined in NI 43-101) and has reviewed and approved the contents of this news release.

Additional information about the Company is available on its website,

G. Bodnar Jr.
President, Chief Financial Officer
Ressources Yorbeau Inc.
Tel: 514-384-2202
gbodnar@yorbeauresources.com

Laurent Hallé P. Geo
Consulting geologist
Yorbeau Resources Inc.
Tel: 819-629-9758
lhalle@yorbeauresources.com

Toll free in North America: 1-855-384-2202

Forward-Looking Statements: Except for statements of historical fact, all statements contained in this news release, including statements regarding the drilling program, exploration of options to maximize the value of the Scott Lake and Rouyn projects and next development steps in connection with these projects, and future and objectives, are forward-looking statements that involve risks and uncertainties. There can be no assurance that these statements will prove to be accurate. Actual results and future events could differ materially from those anticipated in these statements. Yorbeau disclaims any obligation to update these statements.