Reuters reports.
Putin is expected to visit Turkey on February 12 to meet with Erdogan. This will be the Russian president's first trip to a NATO ally since Moscow's invasion of Ukraine in February 2022.
"The previous grain deal worked within a certain mechanism, now it has been seen that there is a possibility of going with a different mechanism, and now there are efforts to concretise this possibility," Fidan said.
He emphasized that "some vessels" managed to transport Ukrainian grain through the Black Sea even without the signing of a "grain deal".
"We want to make clear this situation de-facto with the new mechanism," the Turkish Foreign Minister added.
At the end of January, the Kremlin announced that Vladimir Putin's visit to Turkey is being prepared for February. One of the main topics of talks with President Recep Tayyip Erdogan will be Ukraine.