Sept 27 (Reuters) - Uranium miner IsoEnergy said on Wednesday that it would buy all the shares of Consolidated Uranium it does not already own in an all-stock deal, valuing the combined company at C$903.5 million ($667.9 million).

The deal is expected to close in the fourth quarter of this year, post which Consolidated Uranium shareholders would own 29.5% of the combined company, while the rest will be held by IsoEnergy.

Uranium

prices

are trading around $66.25 a pound, their highest since the 2011 Fukushima disaster, as mounting worries over climate change accelerate a global shift to cleaner sources of energy, including nuclear power.

A push to improve energy security, particularly after Russia's invasion of Ukraine upended global oil markets, has also stoked demand, while supplies remain constrained.

Consolidated Uranium shareholders would receive 0.500 of a common share of IsoEnergy for each share held.

The deal values entire Uranium Consolidated at C$240.7 million or C$2.405 per share, representing a premium of 26% to the stock's last close, as per Reuters calculations. ($1 = 1.3532 Canadian dollars) (Reporting by Tanay Dhumal in Bengaluru; Editing by Varun H K)