"The meeting will mainly be on Idlib and other parts of Syria, on the general security situation, transition processes, constitutional commission and resettlement," he said after a cabinet meeting in the capital Ankara, Daily Sabah reported.
Kalin also said that there would be another meeting with Russian, German and French leaders in two months.
Turkey, Russia and Iran are cooperating as part of the Astana process to bring peace and stability to the war-torn Syria. Officials from the three countries most recently met in the newly renamed Kazakh capital Nur-Sultan in April.
The talks support the establishment of a UN-backed constitutional committee in Syria to find a political solution. The planned constitutional committee, including representatives from the opposition, the government and guarantor countries, will be tasked with writing and establishing the Arab country’s postwar Constitution, which is seen as a stepping stone to elections in the war-torn country.