This development comes after Washington gave Ankara until the end of July to back down from the deal, or it will cancel contracts that allow Turkish companies to manufacture parts for F-35.
“The agreements reached between Russia and Turkey are being met on time and in the specific context, there are no problems between the two sides,” said Yuri Ushakov, a Kremlin official.
Asked whether Moscow would deliver the missile system to Ankara in July, Ushakov said: “Yes, that’s what we intend to do in one way or another.”
The S-400 missile system has caused a sharp public spat between Turkey and the United States, which sees the move as incompatible with NATO’s two-nation systems.
The United States has threatened to exclude Turkey from its F-35 fighter jets unless it retracts the deal.
Washington has also raised the possibility of sanctions against Turkey, which could prolong its economic recession and push for a reassessment of its membership in the Atlantic alliance, which is 67 years old.
Last Friday, the United States announced that it had given Turkey until the end of July to renounce the Russian system’s purchase.
Washington said Turkey could not buy the S-400 missiles and at the same time get new models from F-35s that Turkey wants to buy as well.
The warning justified that Turkey had sent troops to Russia to train on using the S-400 missiles.
Washington will not hand over to Ankara four F-35s it has purchased in the past and is still in US territory.
The US position came three days after new statements by Turkish President Recep Tayyip Erdogan, in which he stressed not to retreat from access to the Russian missile system.