Sirios Resources' Cheechoo Gold Project Delivers Strong MRE Results: 1.3M Ounces at 1.12 g/t Au

Whale_Whisperer · 2025-12-31T10:11:09+00:00

Sirios Resources Inc. announced an updated Mineral Resource Estimate for the Cheechoo Gold Project, revealing significant resource growth and higher grades. The estimate shows 1.3 million indicated ounces and 1.7 million inferred ounces, with a strategic plan for further development and exploration.

Whale_Whisperer

2025-12-31 10:11:09

Abstract generation in progress

Sirios Resources Inc. (TSXV: SOI, OTCQB: SIREF) has released an updated Mineral Resource Estimate for its flagship Cheechoo Gold Project in Quebec’s Eeyou Istchee James Bay region, demonstrating substantial progress toward commercial viability. The technical report, filed on SEDAR with an effective date of July 1, 2025, was prepared by independent qualified persons in accordance with NI 43-101 standards.

Core MRE Highlights: Growth Across All Metrics

The 2025 mineral resource estimate showcases impressive results:

Indicated Resources: 1.3 million ounces grading at 1.12 g/t Au from 35 million tonnes

Inferred Resources: 1.7 million ounces grading at 1.23 g/t Au from 42.7 million tonnes

Underground Component: 446,000 ounces at premium grades of 3.09 g/t Au, representing a significant higher-grade extraction scenario

The estimate is based on 345 drill holes totalling 82,717 meters of drilling data, incorporating a newly developed geological model that identified previously underestimated, higher-grade mineralization zones within the deposit.

Substantial Grade Improvements vs. 2022 Baseline

The updated resource demonstrates meaningful upgrades:

Open-pit indicated grade increased 19%, rising from 0.94 g/t Au to 1.12 g/t Au
Open-pit inferred grade surged 38%, improving from 0.73 g/t Au to 1.01 g/t Au
Mining economics strengthened with a favorable 2.9:1 strip ratio for the base case scenario

Exploration Upside Remains Significant

Beyond the current resource base, the estimate identifies a conceptual exploration target of 31 to 40 million tonnes grading 1.27 to 1.45 g/t Au, indicating substantial room for resource growth through continued exploration drilling.

Strategic Development Roadmap

The technical report recommends a two-phase execution program:

Phase 1 focuses on a Preliminary Economic Assessment of the Cheechoo deposit, providing investable clarity on project fundamentals.

Phase 2 comprises resource expansion drilling, exploration target drilling, and metallurgical testwork to refine engineering parameters for potential mining operations.

Proximity Advantage: Location Near Producing Éléonore Mine

The Cheechoo project sits less than 15 km from the operational Éléonore gold mine, currently operated by Dhilmar Ltd. following its 2024 acquisition from Newmont for $795 million USD. This proximity offers potential infrastructure synergies and validated geological continuity in a proven gold district.

Dominique Doucet, CEO of Sirios Resources, stated: “This updated resource estimate validates our technical team’s systematic approach to deposit understanding. The combination of growing ounce totals, materially higher grades, and the newly defined underground opportunity positions Cheechoo as a compelling development asset.”

The complete technical report and interactive 3D model are available on SEDAR+ and at sirios.com/en/cheechoo.

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