Iran is escalating its uranium enrichment further by preparing to use advanced IR-6 centrifuges at its underground Fordow site that can more easily switch between enrichment levels, according to a UN nuclear watchdog report seen by Reuters.
IAEA inspectors verified on Saturday that Iran was ready to feed uranium hexafluoride (UF6) gas, the material centrifuges enrich, into the second of two cascades, or clusters, of IR-6 centrifuges installed at Fordow, a site dug into a mountain, the confidential IAEA report to member states said.
Reuters said on Monday the IAEA has confirmed the report is authentic.
Iran has also not told the agency clearly what purity the cascade will enrich to after passivation. Iran previously informed the IAEA that the two IR-6 cascades could be used to enrich to 5 per cent or 20 per cent purity.
"The agency has yet to receive clarification from Iran as to which mode of production it intends to implement for the aforementioned cascade, following the completion of passivation," the report said.
Passivation is a chemical treatment for stainless steel and other alloys that enhances the ability of the treated surfaces to resist corrosion.
Iran informed the IAEA on Monday that passivation of the cascade, a process that precedes enrichment and also involves feeding UF6 into the machines, began on Sunday.
Importantly, the 166-machine cascade is the only one to have so-called "modified sub-headers", which make it easier to switch to enriching to other purity levels. Western diplomats have long pointed to that equipment as a source of concern since it could enable Iran to quickly enrich to higher levels, Reuters said.
Iran's nuclear sites - in picures
The move is the latest of several steps Iran had long threatened to take but held off carrying out until 30 of the 35 countries on the International Atomic Energy Agency's board of governors backed a resolution this month criticising it for failing to explain uranium traces found at undeclared sites.
With indirect US-Iran talks on reviving the 2015 Iran nuclear deal long stalled, any further escalation in Tehran's standoff with the West risks killing off hopes of reining in the Islamic republic's nuclear advances and lifting US sanctions against it.
At a different site, Iran is already enriching up to 60 per cent, close to the roughly 90 per cent of weapons-grade and far above the 2015 deal's cap of 3.67 per cent.
Iran has breached many of the deal's limits in response to the US withdrawal from the deal in 2018 and its reimposition of sanctions. Iran denies seeking nuclear weapons.
In response to the board of governors' resolution, Iran has ordered the removal of IAEA cameras installed under the 2015 deal and pressed ahead with the installation of IR-6 centrifuges at an underground plant at Natanz, where the deal lets it enrich but only with far less efficient IR-1 machines.
TO A LAND UNKNOWN
Director: Mahdi Fleifel
Starring: Mahmoud Bakri, Aram Sabbah, Mohammad Alsurafa
Rating: 4.5/5
Babumoshai Bandookbaaz
Director: Kushan Nandy
Starring: Nawazuddin Siddiqui, Bidita Bag, Jatin Goswami
Three stars
THE BIO
Favourite car: Koenigsegg Agera RS or Renault Trezor concept car.
Favourite book: I Am Pilgrim by Terry Hayes or Red Notice by Bill Browder.
Biggest inspiration: My husband Nik. He really got me through a lot with his positivity.
Favourite holiday destination: Being at home in Australia, as I travel all over the world for work. It’s great to just hang out with my husband and family.
The biog
Title: General Practitioner with a speciality in cardiology
Previous jobs: Worked in well-known hospitals Jaslok and Breach Candy in Mumbai, India
Education: Medical degree from the Government Medical College in Nagpur
How it all began: opened his first clinic in Ajman in 1993
Family: a 90-year-old mother, wife and two daughters
Remembers a time when medicines from India were purchased per kilo
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Killing of Qassem Suleimani
More from Rashmee Roshan Lall
QUALIFYING RESULTS
1. Max Verstappen, Netherlands, Red Bull Racing Honda, 1 minute, 35.246 seconds.
2. Valtteri Bottas, Finland, Mercedes, 1:35.271.
3. Lewis Hamilton, Great Britain, Mercedes, 1:35.332.
4. Lando Norris, Great Britain, McLaren Renault, 1:35.497.
5. Alexander Albon, Thailand, Red Bull Racing Honda, 1:35.571.
6. Carlos Sainz Jr, Spain, McLaren Renault, 1:35.815.
7. Daniil Kvyat, Russia, Scuderia Toro Rosso Honda, 1:35.963.
8. Lance Stroll, Canada, Racing Point BWT Mercedes, 1:36.046.
9. Charles Leclerc, Monaco, Ferrari, 1:36.065.
10. Pierre Gasly, France, Scuderia Toro Rosso Honda, 1:36.242.
Eliminated after second session
11. Esteban Ocon, France, Renault, 1:36.359.
12. Daniel Ricciardo, Australia, Renault, 1:36.406.
13. Sebastian Vettel, Germany, Ferrari, 1:36.631.
14. Antonio Giovinazzi, Italy, Alfa Romeo Racing Ferrari, 1:38.248.
Eliminated after first session
15. Antonio Giovinazzi, Italy, Alfa Romeo Racing Ferrari, 1:37.075.
16. Kimi Raikkonen, Finland, Alfa Romeo Racing Ferrari, 1:37.555.
17. Kevin Magnussen, Denmark, Haas Ferrari, 1:37.863.
18. George Russell, Great Britain, Williams Mercedes, 1:38.045.
19. Pietro Fittipaldi, Brazil, Haas Ferrari, 1:38.173.
20. Nicholas Latifi, Canada, Williams Mercedes, 1:38.443.
South Africa v India schedule
Tests: 1st Test Jan 5-9, Cape Town; 2nd Test Jan 13-17, Centurion; 3rd Test Jan 24-28, Johannesburg
ODIs: 1st ODI Feb 1, Durban; 2nd ODI Feb 4, Centurion; 3rd ODI Feb 7, Cape Town; 4th ODI Feb 10, Johannesburg; 5th ODI Feb 13, Port Elizabeth; 6th ODI Feb 16, Centurion
T20Is: 1st T20I Feb 18, Johannesburg; 2nd T20I Feb 21, Centurion; 3rd T20I Feb 24, Cape Town
Wicked: For Good
Director: Jon M Chu
Starring: Ariana Grande, Cynthia Erivo, Jonathan Bailey, Jeff Goldblum, Michelle Yeoh, Ethan Slater
Rating: 4/5