A US official confirmed the arrival of the missiles, which have been used as Russia stepped up attacks on Ukrainian cities and infrastructures.
Iran’s President Masoud Pezeshkian reaffirms commitment to expanding ties with Russia as Moscow calls for calm following the assassination of Hamas leader Ismail Haniyeh.
North Korea and Iran have long been suspected of cooperating on ballistic missile programs, possibly exchanging technical expertise and components that went into their manufacture.
After its drone attack against Israel, Iran seeks to continue building its partnership with Russia, which has slammed the UN Security Council's emergency meeting after the attack.
The Commerce Department said some of the companies were added for their roles in diverting controlled microelectronics to Russia’s military and intelligence authorities.
Heusgen told German press agency DPA the Iranian and Russian governments had not been invited because they had not shown a serious interest in negotiations.
The agreement was finalized during a meeting between the governors of the two countries' central banks in Russia.
Russian state media reports that Iran and Russia's presidents intend to discuss trade and economic cooperation while Iran's pro-regime media highlights that Gaza is an important subject.
The White House said Russia and Iran appeared to be deepening their defense cooperation and that in addition to supplying drones, Tehran was working with Moscow to produce Iranian drones.
Iran recently was able to get out from under sanctions on its missile program and is looking to expand its defense imports and exports.