A French nuclear firm said it’s working to resolve a “performance issue” at a plant it partially owns in China’s Guangdong Province, following reports that U.S. authorities have been assessing a report of a possible leak at the facility amid warnings of an “imminent radiological threat,” according to reports. Framatome, a division of French power group EDF, told France 24 in a statement on June 14 that it’s “supporting resolution of a performance issue” at the Taishan Nuclear Power Plant, which is a joint venture between EDF and China General Nuclear Power Group (CGN), located around 84 miles west of...