Sirios Begins Drilling at the Aquilon Gold Project in Eeyou Istchee James Bay, Quebec
Sirios launches a 1,800m Aquilon drill program to confirm the 2025 gold halo.

Sirios Resources Inc. announced on September 25, 2026, that it has commenced a 1,800-metre diamond drilling program at its Aquilon gold project in Quebec. The initiative employs a helicopter-supported rig to drill three new holes and extend two existing ones. The primary objective is to confirm the lateral and depth continuity of a large gold halo identified in 2025, which extends over 700 metres laterally and 300 metres wide, dipping eastward. Previous drilling in 2025 intersected up to 298.2 metres grading 0.26 g/t Au.
The program is funded 51% by Sumitomo Metal Mining Canada and 49% by Sirios Resources, reflecting the joint venture ownership structure. The announcement follows a series of exploration updates and a completed acquisition of OVI Mining Corp., positioning Aquilon as a key component of the expanded James Bay portfolio.
Sirios Resources Inc. (SOI) has initiated drilling, an expected incremental step in the exploration cycle that validates the previously announced 2026 work program and the joint venture funding model with Sumitomo. By having Sumitomo cover 51% of the costs, Sirios mitigates near-term dilution risk while advancing the high-potential asset. The announcement does not introduce new financial metrics, resource estimates, or regulatory milestones. Given the stock's recent consolidation and the expected nature of the update, the immediate price impact is likely to be muted.
Sirios Resources Inc. (SOI) is a Quebec-based gold exploration and development company focused on the Eeyou Istchee James Bay region. Its flagship asset is the fully owned Cheechoo Gold Project, which hosts a 2025 Mineral Resource Estimate of 34.99 Mt Indicated at 1.12 g/t Au (1,262 koz) and 42.7 Mt Inferred at 1.23 g/t Au (1,688 koz). The deposit features a low strip ratio of 2.9:1 and high gold recovery of 92%, with conceptual open-pit and underground potential.
The company’s other assets include Aquilon, which is 49% owned through a 51% Sumitomo JV, as well as the PLEX property covering 21,000 ha of greenstone belt, and the Corvet Est, Fagnant, and Lac Pau properties. The portfolio benefits from long-standing Indigenous engagement and proximity to regional infrastructure.