Russia and Turkey have almost agreed on all technical aspects of the deal on supplies of S-400 missile systems, according to CEO of Rostec Corporation Sergey Chemezov.

“As for the S-400 system, the discussions are going on, all the technical issues have already been agreed on, the current discussions refer to the financial issues, the Turkish side is seeking to get loan,” Chemezov (photo) stated during the briefing at the SPIEF 2017.

“I know that this issue (of the loan) was raised at the intergovernmental level, because only the government can give loan under the intergovernmental agreement. I know that the Russian and the Turkish Ministries of Finance did negotiate on this, but I am not aware of the outcome of the negotiations,” said the Head of Rostec.

He did not answer the question on the number of S-400 sets Turkey wants to purchase.

“The contract is not yet signed, so we are not going to discuss this issue yet,” said Chemezov.

The S-400 Triumf (NATO reporting name: SA-21 Growler), previously known as the S-300PMU-3, is an anti-aircraft weapon system developed in the 1990s by Russia’s Almaz Central Design Bureau as an upgrade of the S-300 family. It has been in service with the Russian Armed Forces since 2007.

The S-400 uses four missiles to fill its performance envelope: the very-long-range 40N6 (400 km), the long-range 48N6 (250 km), the medium-range 9M96E2 (120 km) and the short-range 9M96E (40 km). The S-400 has been described, as of 2017,