A nuclear facility in Natanz, central Iran. (Photo: IRNA/VNA)

Iran is now enriching to various levels, 5%, 20%, and the highest being around 60%.

The Joint Comprehensive Plan of Action (JCPOA) is the nuclear pact that Iran signed with the UK, France, the US, Russia, China, and Germany in 2015.

The deal restricts the purity to which Iran can enrich uranium to 3.67%, far below the 20% Iran reached before the deal and the roughly 90% that is weapons-grade.

Negotiations over a renewed Iran nuclear deal have so far not progressed remarkably.