Iran will receive the last 149-tons of the uranium deal with Russia as part of its nuclear deal with world powers.

“The first shipment arrived on January 26 by plane and the last will arrive tomorrow, Tuesday,” according to the head of Iran’s Atomic Energy Organization.

Under the nuclear deal signed with world powers in July 2015, Iran has the right to enrich uranium to a level of 3.5 percent and sell it abroad, as part of efforts to develop its civilian nuclear program. It should be noted that nuclear weapons require uranium enriched to around 80 percent.

With the latest shipment, which was authorized by the United States as well as the other five signatories to the deal, the imported uranium in Iran reaches a total of 359 tons since January 2016.

Under the deal, Iran is allowed to run around 5,000 “IR-1” centrifuges and has been testing more advanced models that can produce greater quantities of enriched uranium — all under the strict supervision of the UN atomic agency.