Russia could control more than a third of mined uranium supply by 2040, a dominance that would compromise western energy security as demand from new nuclear power plants soars, a report has warned.

Supply fears are compounded by an existing deficit because of limited investment appetite and permitting delays to new mines.

At the same time, Russian and Russian-owned uranium mining capacity will keep growing, the Centre for Strategic Advantage (CSA) non-profit said in its inaugural report.