The reasons for Areva Mines’ decision to not proceed with the deal have not been disclosed.

The two companies had entered into a binding cooperation agreement in February 2013, after Aura Energy received an unsolicited proposal from Areva Mines in August 2012.

Aura Energy managing director Bob Beeson said that the HäggĂ¥n Project is the second largest undeveloped uranium resource worldwide with an inferred resource of 803 million pounds of uranium as well as various co-products like nickel, zinc and molybdenum.

"Aura maintains that the HäggĂ¥n Project is a strategic asset that has the potential to provide long term uranium supply to the European Union," Beeson said.