Sirios Intercepts 0.26 g/t Gold over 298.2 Metres at Aquilon

Rhea-AI Summary

Sirios (TSXV: SIREF) reported assays from 1,496 metres of additional drill core at the Aquilon gold project, highlighting a 298.2 m intercept at 0.26 g/t Au and a gold-bearing halo extending >700 m by 300 m and to a vertical depth of 373 m in hole AQ25-119. Sumitomo funded 2025 drilling, invested >C$4.8 million and earned a 51% interest; further exploration will be jointly funded by the joint venture.

Positive

• 298.2 m intercept at 0.26 g/t Au in AQ25-118
• Gold-bearing halo extends >700 m by 300 m, dipping eastward
• Sumitomo invested >C$4.8M and earned a 51% interest in Aquilon

Negative

• Halo average grade is low at 0.26 g/t Au, which may limit economics
• Mineralization is open in all directions; resource size remains unquantified

News Market Reaction

-7.08%

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-7.08% News Effect

On the day this news was published, SIREF declined 7.08%, reflecting a notable negative market reaction.

Data tracked by StockTitan Argus on the day of publication.

Sampling assay results confirm continuity of the high-potential gold-bearing halo at project in Eeyou Istchee Baie-James, Québec

Montréal, Québec--(Newsfile Corp. - February 10, 2026) - Sirios Resources Inc. (TSXV: SOI) reports assay results from an additional sampling program performed on 1,496 metres of drill core from its Aquilon gold project in the Eeyou Istchee Baie-James region of Québec. Results from six drill holes that were continuously sampled along their entire core length further define a gold-bearing halo that was discovered in 2025. The halo extends laterally for more than 700 metres from south to north and over a width of 300 metres dipping eastward, according to the geological and structural interpretation of the area.

"These results remind me of the very first drilling results we obtained in 2012 on our Cheechoo project," said Dominique Doucet, founder and Chief Executive Officer of Sirios. "Among others, the first drill hole at Cheechoo returned 0.21 g/t Au over 191.4 metres, from surface to the end of the hole. This only highlights the strong potential of Aquilon."

The recent assay results confirm the continuity of the gold-bearing halo and define significant thicknesses reaching up to 298.2 metres along the drill hole (apparent thickness). The anomalous gold corridor extends to a vertical depth of 373 metres in drill hole AQ25-119. It remains open in all directions, including at depth, indicating strong potential for further extension. In addition, other anomalous gold intervals, which cannot be correlated with the main corridor and are located to its north, were identified through the sampling program. These intervals may correspond to one or more additional gold-bearing zones.

Updated key drill Intercepts incorporating results from the additional sampling program

Zone	Diamond Drill Hole	From (m)	To (m)	Interval (m)	Au (g/t)
GOLD HALO	AQ25-118	3.1	301.3	298.2	0.26
	Including*	237	241	4	1.12
	Including*	206.4	210.4	4	1.08
	Including	123	145.9	22.9	0.57
	Including	42.6	68.5	25.9	0.43
	AQ25-119	355	501	146	0.27
	Including*	482.2	487	4.8	2.55
	Including*	492.3	499	3.7	0.95
	AQ25-117	3.4	227.9	224.5	0.18
	Including	174.8	176	1.2	1.93
	Including	162.2	166.7	4.5	0.84
	AQ25-115	289	378.9	89.9	0.18
	Including	307	319	12	0.29
	AQ25-120	5.2	98.8	93.6	0.19
	Including	16	53.1	37.1	0.26
	AQ25-113	4	101.2	97.2	0.15
Zone	Diamond Drill Hole	From (m)	To (m)	Interval (m)	Au (g/t)
OUTSIDE GOLD HALO	AQ25-115	86	144.5	58.5	0.38
	Including	113.5	130.5	17	0.84
		404.7	405.7	1	3.38
	1295-02-18 **	119	165	46	0.22
	AQ20-109 **	55	110.6	55.6	0.18
	Including	108	109.1	1.1	1.23

 

Note: *Already published on 12/04/2025
** Historical drill holes included in the additional sampling program
*** Reported thicknesses are along the drill hole

Thirteen drill holes totaling 5,420 metres were completed in 2025 (see press release dated December 4, 2025). This led to the discovery of a new mineralization setting on Aquilon, characterized by several high-grade gold intervals surrounded by a lower-grade halo. The mineralization occurs continuously within a large rock volume in a sparsely explored area located west of the historical gold showings.

The 2025 drilling program was funded by Sumitomo Metal Mining Canada (Sumitomo), with Sirios acting as operator. By completing this program, Sumitomo fulfilled the Phase 1 requirements of the option agreement and earned a 51% interest in the project, having invested more than C$4.8 million in Aquilon. Going forward, all exploration programs on the Aquilon project will now be jointly funded by Sumitomo and Sirios in proportion to their respective ownership interests, according to the joint venture agreement.

Figure 1: Location of 2025 drilling program at Aquilon Project

To view an enhanced version of this graphic, please visit:
https://images.newsfilecorp.com/files/2313/283296_3329f23e4435bbd5_002full.jpg

Figure 2: Final results from 2025 exploration program at Aquilon Project

To view an enhanced version of this graphic, please visit:
https://images.newsfilecorp.com/files/2313/283296_3329f23e4435bbd5_003full.jpg

Figure 3: New interpreted gold anomalous area (vertical section) at Aquilon Project

To view an enhanced version of this graphic, please visit:
https://images.newsfilecorp.com/files/2313/283296_3329f23e4435bbd5_004full.jpg

Parameters of the 2025 drilling program

Diamond Drill Hole	UTM NAD 83 (Zone 18)			Azimuth (°)	Dip (°)	Depth (m)
	Easting (mE)	Northing (mN)	Elevation (m)
AQ25-112	659742.2	5993416.0	441.1	300	-51	564
AQ25-113	660122.0	5994037.7	442.7	330	-51	501
AQ25-114	659901.7	5993584.0	442.5	320	-48	480
AQ25-115	660461.3	5993999.5	438.9	290	-48	467
AQ25-116	660814.2	5994192.5	439.7	140	-48	549
AQ25-117	660200.9	5993624.2	441.5	270	-48	480
AQ25-118	660273.8	5993456.6	440.9	230	-48	396.2
AQ25-119	660637.5	5993947.0	439.9	230	-48	501
AQ25-120	660038.2	5993260.9	441.0	230	-50	480
AQ25-121	661223.5	5994475.4	436.2	200	-60	201
AQ25-122	660463.8	5992843.2	444.2	220	-50	249
AQ25-123	660629.4	5993000.1	449.3	220	-48	252
AQ25-124	660975.2	5993326.2	445.9	290	-50	300
Total						5,420.20

 

About the Aquilon Project
The Aquilon gold project consists of 140 mineral claims covering an area of 68 km². It is in Eeyou Istchee James Bay. Quebec, 10 km south of the Laforge-1 hydroelectric power station and is easily accessible by all-season roads. To date, 32 gold showings have been discovered on the project. Some drill intercepts from the Aquilon project are among the highest grades obtained in Quebec, including 12,906.5 g/t Au over 0.2 m (Lingo showing), 3,527.4 g/t Au over 0.4 m (Moman showing) and 133.67 g/t Au over 0.8 m (Fleur-de-Lys showing) (ref. press releases of 26/06/2008 and 19/01/2011). Additional information is available on the recently updated Aquilon webpage at sirios.com/en/aquilon.

About Sirios Resources
Sirios Resources is a Canada-based mining exploration company focused on the development of the Cheechoo gold deposit and on the exploration of its portfolio of high-potential gold projects in the Eeyou Istchee James Bay region of Quebec.

Contact:
Dominique Doucet, P.Eng.
Founder and Chief Executive Officer
450-482-0603
info@sirios.com
www.sirios.com

Qualified person, quality assurance, and quality control
Dominique Doucet, P.Eng., CEO of Sirios and Roger Moar, P.Geo., qualified persons under National Instrument 43-101, have reviewed and approved the scientific and technical information in this press release. Mr. Moar was acting, since 2004, as Qualified Person on Aquilon on behalf of a previous partner and is full time senior geologist at Sirios since 2017.

All NQ caliber drill cores from the Aquilon project were logged and sampled by Sirios personnel. The cores were split in half, with one half sent to a certified commercial laboratory for analysis and the other half retained for future reference. A strict QA/QC program was implemented, incorporating blanks and certified reference standards into the sample sequence. Gold assays were performed by ALS Global Val-d'Or laboratory, Qc, Canada using fire assay with an atomic absorption finish on a 50 g subsample.

Cautionary Note Regarding Forward-Looking Statements
This press release contains "forward-looking statements" within the meaning of applicable Canadian securities laws based on expectations, estimates and projections as of the date of this press release. Forward-looking statements involve risks, uncertainties and other factors that could cause actual events, results, performance, expectations and opportunities to differ materially from those expressed or implied by such forward-looking statements. Factors that could cause actual results to differ materially from those indicated in such forward-looking statements include, but are not limited to: capital and operating costs that differ materially from estimates; the tentative nature of metallurgical test results; delays or failures in obtaining required governmental, environmental or other approvals; uncertainties related to the availability and cost of necessary financing in the future changes in financial markets; inflation; fluctuations in metal prices; delays in project development; other risks relating to the mineral exploration and development industry; and risks disclosed in public filings of the Company on SEDAR+ at www.sedarplus.ca. Although the Company believes that the assumptions and factors used in preparing the forward-looking statements contained in this news release are reasonable. Readers should not place undue reliance on this information, which speaks only as of the date of this news release, and there can be no assurance that such events will occur or occur within the time periods presented. The Company disclaims any intention or obligation to update or revise any forward-looking statements, whether as a result of new information, future events or otherwise, except as required by applicable law.

Neither the TSX Venture Exchange nor its Regulation Services Provider (as that term is defined in the policies of the TSX Venture Exchange) accepts responsibility for the adequacy or accuracy of this release.

To view the source version of this press release, please visit https://www.newsfilecorp.com/release/283296

FAQ

What were the key drill results at Aquilon reported by Sirios (SIREF) on February 10, 2026?

Sirios reported a 298.2 m intercept at 0.26 g/t Au and multiple additional anomalous intervals. According to the company, the halo extends >700 m laterally, >300 m wide and reaches a vertical depth of 373 m in AQ25-119.

How did the 2025 drilling at Aquilon affect project ownership for SIREF?

Sumitomo met Phase 1 terms, invested >C$4.8 million and earned a 51% interest in Aquilon. According to the company, future exploration costs will be shared pro rata under the joint venture agreement.

What does the 0.26 g/t over 298.2 metres intercept mean for SIREF shareholders?

The intercept shows extensive continuous mineralization but at a low average grade of 0.26 g/t Au. According to the company, higher-grade shoots exist within the halo, requiring more drilling to assess economic potential.

Is the Aquilon gold halo open for further expansion according to Sirios (SIREF)?

Yes. According to the company, the gold-bearing halo remains open in all directions, including at depth, indicating potential for further extension that warrants additional drilling and targeting.

Which drill holes outside the main halo returned notable gold intervals in the Aquilon program?

Drill hole AQ25-115 and several historical holes returned anomalous results outside the main halo, including 58.5 m at 0.38 g/t and other intervals. According to the company, these may indicate additional gold-bearing zones north of the corridor.