TAILINGS MANAGEMENT

BENEFITS:

After a comprehensive review and analysis of tailings management, NexGen proposes industry leadingpractices of storing tailings underground in both mined-out stopes and purpose-built Underground Tailings

Management Facility ("UGTMF"). This design practice employs the highest degree of environmentalpreformance, safety and advances progressive reclamation.

Minimizes surface footprint of operations,Avoids long-term management of surfacetailings storage facility,Undertakes progressive decommissioningduring mining operations which reduces thetime required to decommission the site onceoperations are complete.

UNDERGROUND FACILITY:

CONTINUOUSRECLAMATION

The proposed UGTMF will be constructed instable and strong basement rock, approximately385 m below surface in an area without uraniummineralization. It will consist of chambers that willbe filled with processed tailings deliveredunderground through piping and sealed offpermanently for storage.

Underground tailings storage results in numerousenvironmental benefits:

Underground tailings storage allows forcontinuous reclamation during all phases of theProject. Processing all tailings and putting themin mined-out stopes and purpose-builtunderground chambers for long-term storageremoves the need for surface storage facilitiesand enables site to be restored after miningoperations cease.

Rook I | For more information, please visit www.saskatchewanuranium.ca