Summary

Mine Type	Open Pit & Underground
Status	Care and Maintenance
Commodities	Diamond
Mining Method	Truck & Shovel / Loader Blast Hole Stoping
Production Start	...
Snapshot	The Renard Mine is one of only five diamond mines in Canada, and the only diamond mine in the Province of Quebec. In 2023, Deloitte Restructuring Inc. was appointed by the Superior Court of Québec as monitor in the CCAA proceedings of Stornoway. The mine was placed in care and maintenance in March 2025. In April 2024, Winsome Resources acquired an option to purchase the Renard Mine. During the option period Winsome will confirm the feasibility of repurposing Renard for lithium production, as well as determining the optimal transaction structure for the acquisition. On June 24, 2025, TCL Asset Group Inc. announced that it has been awarded the contract to manage the sale of surplus assets from Stornoway Diamonds Inc.'s Renard Diamond Mine Site. TCL will be conducting a Liquidation of the Diamond Recovery Facility and Tomra Sorting System.

Deposit type

• Kimberlite

Summary:

The Renard kimberlites were emplaced into granitic and gneissic host rocks, and contain diamonds of economic interest. The bodies comprise a late Neo-Proterozoic to Cambrian kimberlite field in Québec (Girard, 2001; Moorhead et al., 2002; Letendre et al., 2003).

To date, nine kimberlite pipes have been identified over a 2 km2 area in the Renard Cluster (Renard 1 to Renard 10; with Renard 5 and Renard 6 forming one body, referred to as Renard 65). The kimberlite pipes are typically spaced between 50 m and 500 m from each other. Geophysical data and drill information from delineation and bulk sampling programs indicate that, in general, most of the Renard kimberlites are irregular and elliptical in plan view. Surface areas of the kimberlite portion of the pipes range from 0.1 ha to 2.0 ha. Two laterally extensive kimberlite dyke systems, known as the Lynx and Hibou dykes, have been identified to the west and northwest of the pipe cluster, respectively. Portions of both dykes are included in the mineral resource estimation. Additional dyke like kimberlites have been discovered elsewhere on the property. These are not included in the mineral resource estimation but may warrant additional work at a later date.

Mining Methods

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Comminution

Crushers and Mills

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Processing

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Commodity Production

Operational metrics

Metrics	2021	2020	2019	2018	2017	2016
Tonnes processed	....	....	2,556,459 t	2,328,300 t	1,956,436 t	399,162 t
Ore tonnes mined	....	....		2,115,522 t	2,228,273 t	2,074,827 t
Daily milling capacity	....	....			6,000 t	6,000 t
Total tonnes mined	....	....			4,475,854 t	7,840,130 t
Plant annual capacity	....	....				2.16 Mt

Personnel

Job Title	Name	Profile	Ref. Date
.......................	.......................		Feb 8, 2025
.......................	.......................		Feb 8, 2025
.......................	.......................		Feb 8, 2025