Mobilisation Activities Underway at Rae Copper Project

17 March 2025

White Cliff Minerals Limited (“WCN” or the “Company”) is pleased to provide an update on its upcoming drilling activities the Rae Copper Project, Nunavut (the “Project”).

Following the grant of the required permits, mobilisation is now underway. The upcoming campaign marks the first substantial exploration effort in the region for over a decade.

The maiden campaign will involve approximately 4,000 meters of drilling at:

• the sediment-hosted Hulk copper prospect, targeting a large geophysical anomaly with dimensions that exceed 20km by 10km; and

• Danvers where we will target extensions to the known high grade mineralisation.

Mobilisation activities include:

• Preparing and certifying the Project airstrip for Twin Otter and Dash 7 aircraft access;

• Camp infrastructure, communication systems, fuel and drilling equipment have been delivered to Site; and

• Establishment of a 20 person Project camp, which, is now operational.

The drill rig is now in Yellowknife and is scheduled to arrive later this week along with White Cliff personnel and project managers, Aurora Geoscience.

Drilling will start within the area of the Danvers Deposit, which hosts a historic estimate of 4.16 million tons at 2.96% copper, historic drilling from the area included:

• 39.40m @ 4.91% Cu from 60.3m (S-57)

• 47.10m @ 3.23% Cu from 42.2m (S-24)

• 35.40m @ 3.18% Cu from 21m (S21)

• 27.5m @ 4.09% Cu from 76.7m (S-63)

• 38.1m @ 2.78% Cu from 63.4m (S-73)

• 31.4m @ 3.26% Cu from 15.2m (S-20)

• 44.8m @ 2.19% Cu from 55.8m (S-18)

The historic resource estimate at the Danvers Prospect, is a historic estimate and not in accordance with the JORC Code. The Company notes that the estimate and historic drilling results dated 1967 and 1968 are not reported in accordance with the NI 43-101 or JORC Code 2012. A competent person has not done sufficient work to disclose the estimate/results in accordance with the JORC Code 2012. It is possible that following further evaluation and/or exploration work that the confidence in the estimate and reported exploration results may be reduced when reported under the JORC Code 2012. The supporting information provided in the announcement dated 26 November 2024 continues to apply and has not materially changed.

“Mobilisation is nearing completion with drilling scheduled to start in the next 5-7 days. A fully operational airstrip immediately adjacent to our projects and Yellowknife only 1.5hrs away by plane provides significant logistical advantages allowing for a fast and efficient start of field season as well as building a solid foundation for future works. As with our works program to date, the team has once again shown full commitment to executing the program safely and efficiently and I’m looking forward to providing further updates in the coming weeks as drilling gets underway” says Troy Whittaker - Managing Director