Sienna Resources Inc. announced that it has acquired the 10,845 contiguous acre "Dragon Uranium Project" bordering Cameco Corporation (CCO, CCJ) in the world renowned Athabasca Basin of Saskatchewan. According to the World Nuclear Association (WNA), the highest-grade uranium mine in the world is Cameco's Cigar Lake in the Athabasca Basin of Saskatchewan, Canada. It has an average grade of 14.69% U3O8.

The Athabasca Basin is home to the highest-grade uranium deposits in the world, which includes the highest grade uranium mine in the world owned by Cameco Corporation.