According to Aura's scoping study, the Tiris uranium deposit...

According to Aura's scoping study, the Tiris uranium deposit will have a low operating cost of A$30/lb. In today's announcement it says, " Aura’s 2014 Scoping Study identified the need for up to 16,000 tonnes of soda ash (used to leach the uranium) which, including transport would account for approximately 25% of the Tiris’ operating costs. So we are potentially looking at an operating cost of around A$22.50/lb. This would be an excellent outcome!

This Soda Ash deposit was identified by a third party who was completing the competent person report for AIM, it is not just management latching onto the next best thing. It was identified by someone who is familiar with these types of deposits and is competent in assessing their merit. That speaks volumes for its potential.
On top of this, they have secured an excellent gold tenement that is down strike of the Kinross 21m Oz deposit.