VIENNA—Iran is starting to operate a new workshop at Natanz that will make parts for uranium-enriching centrifuges with machines moved there from its now-closed Karaj facility, the U.N. nuclear watchdog said in a report on Thursday seen by Reuters.
The new workshop raises questions about Iran’s plans for the manufacturing of advanced centrifuges—machines that produce enriched uranium much faster than the first-generation machines it was restricted to using for that purpose by its 2015 deal with major powers.
