President of Turkmenistan Gurbanguly Berdimuhamedov, who is on a state visit to Astana, expressed hope that the Convention on the status of the Caspian Sea will be signed at the next summit of the Caspian states, which will be held in Kazakhstan. During the talks with his Kazakh counterpart Nursultan Nazarbayev, the Turkmen leader stressed that Turkmenistan and Kazakhstan are neighbors on the Caspian Sea, and cooperation in a bilateral and multilateral format is an important factor in transforming the Caspian into a world of peace, good-neighborliness, harmony and mutually beneficial partnership.