Iran has informed the UN nuclear watchdog that it will increase its nuclear enrichment capacity within the limits set by the 2015 agreement with world powers.

The modest steps announced Tuesday appeared to be mainly aimed at signaling that Iran could resume its drive toward industrial-scale enrichment if the nuclear accord comes unraveled…

Kamalvandi said Iran is “providing infrastructure and arrangements for high-speed and capacity in production of UF4 and UF6 gases as well as rotor of centrifuges.”