Russia sends its first shipment of S-400 systems to China.

Image Credit: Vitaliy Nevar/TASS
The delivery of the S-400 systems from Russia to China has begun. The contract was incepted in November 2014 and will include the delivery of a control station, radar station, support equipment, spare parts and all the necessary tools for the S-400 system. The contract will not involve and technology transfer or licensed production.
China is the first country to buy the S-400 systems, while the second country is Turkey. The latter signed the contract for the purchase of the S-400 systems on September 12, 2017.
The S-400 Triumf SAM system also known by NATO as SA-21 Growler, was developed in the 1990s as an upgrade to the S-300 systems. It utilizes 4 missiles which vary from the very long range 40N6 missile (400km) to the short range 9M96E2 missile (40km). Each system costs $400 million and around 69 have been produced so far. Source: CSIS.