Duty to Consult: IsoEnergy’s East Rim Project

Who? IsoEnergy

Where? The East Rim Project is located approximately 60 km southwest of Points North and 25 km East of McArthur River Mine

What type of activities will occur? Mineral exploration activities, including:

• 25 km of line slashing

• Access will be via existing trails or helicopter

Ground geophysical survey

• Proposed to be carried out in both Area A and Area B

• Snowmobile slash line proposed between Area A and Area B

• Access will be via snowmobile or helicopter

Diamond drilling

• Proposed to be carried out in Area B

• Planned for summer months (June 1, 2025 to October 31, 2025)

• No new trails will be required, access via helicopter

• Up to 10 drill holes with a total meterage of up to 4000 m

• Up to 10 helicopter pads (30 m by 30 m in size)

When will these activities occur (Estimated Permit Length)? Feb 2025 to October 2025