Russia and Turkey plan to sign a contract on the delivery of the second batch of the S-400 air defense missile systems in 2020, a military-diplomatic source told TASS on Wednesday.
“After the delivery of the first batch concludes in May or June 2020, the parties plan to sign a new contract on the delivery of the second batch of the S-400 systems in 2021.
According to the source, the new document will stipulate local manufacturing as Turkish companies will produce certain components of the S-400 systems, “which are not of crucial importance.”

In September 2017, Turkish President Recep Tayyip Erdogan announced that Ankara had signed a contract with Moscow on purchasing the S-400 complexes and made an advance payment. The head of Russia’s Rostec State Corporation, Sergei Chemezov said that the delivery would begin in March 2020.
Turkey is the first NATO member state to purchase this kind of air defense missile systems from Russia.

source: TASS