Activities include initiation of the perimeter freeze wall installation for Phase 1 of the mine. Since the commencement of site preparation and early works in March 2026, significant progress has been made by Denison and its construction partners to complete several critical site preparation activities – including substantial completion of site clearing activities, advancement of schedule-sensitive site civil works, and the establishment of construction management facilities. Preparation activities also involved the installation and commissioning of temporary construction camp facilities, which significantly increases the accommodation capacity of the Wheeler River property to nearly 400 people and allows a ramp-up in the on-site workforce.

Additionally, aggregate production required for various site civil purposes continues at a nearby quarry, and the concrete batch plant has been mobilized to site. Schedule-critical concrete-related activities for the substation and the main process plant foundations are currently expected to commence in August.