Moscow previously banned the export of strategically important nuclear fuel to Washington Beijing is poised to become the largest importer of Russian nuclear fuel this year, following Moscow’s ban on enriched uranium exports to the US in retaliation for Washington’s selective restrictions. Over the past ten months, China has purchased $849 million worth of enriched uranium from Russia – a 3.2-fold increase compared to the same period last year, according to customs data analyzed by RIA Novosti.