Central Asia and Azerbaijan Extend Cooperation Across the Caspian
Central Asia’s presidential forum now spans both shores of the Caspian. Kazakhstan and Azerbaijan anchor the principal Caspian crossing at the center of the Middle Corridor, the rail-and-sea network linking Central Asia to European markets through Azerbaijan, Georgia, and Türkiye. Azerbaijan’s full participation brings the corridor’s eastern and western Caspian gateways into the same regular political setting. The six governments can use it to coordinate the transport, energy, digital, and investment links already developing across the Caspian, even though Georgia and Türkiye remain essential to the route’s westward operation. On July 31, 2026, the presidents of Kazakhstan, Kyrgyzstan, Tajikistan, Turkmenistan, Uzbekistan, and Azerbaijan signed the Cholpon-Ata Declaration at an informal Consultative Meeting of the Heads of State of Central Asia and Azerbaijan in Kyrgyzstan. The Declaration gave formal political expression to cooperation that had already been developing. Official accounts said the leaders emphasized expanded regional cooperation, including trade, transport and logistics, and energy. The full text has not been released, so those priorities come from official accounts rather than the declaration itself. Proposed by Uzbekistani President Shavkat Mirziyoyev in 2017 and first convened in Astana in March 2018, the Consultative Meetings brought together the five Central Asian states in an informal presidential format. They expanded in November 2025 with Azerbaijan’s admission as a full-fledged participant, while retaining their consultative character. Azerbaijan attended in 2023 and 2024 as a guest; Cholpon-Ata was its first informal meeting in the new capacity. Official documents continue to call the format “Central Asia and Azerbaijan.” C6 is analytical shorthand for the enlargement, not the name of a new bloc or formal organization. Azerbaijan’s admission follows several years of practical cooperation. At a ministerial meeting in Aktau on November 25, 2022, Kazakhstan, Azerbaijan, Georgia, and Türkiye signed a 2022–2027 roadmap for the simultaneous elimination of bottlenecks and development of the Middle Corridor. At its 2023 Baku summit, the UN Special Programme for the Economies of Central Asia (SPECA) adopted a digitalization roadmap and established a multi-partner trust fund, followed by work on digital data exchange and port-to-port cooperation. The transport roadmap includes Georgia and Türkiye, while SPECA also includes Afghanistan; neither is institutionally identical to C6. The enlarged format gives the six governments a regular political setting in which to coordinate existing transport, digital, and investment mechanisms. The Trans-Caspian International Transport Route Association reports that freight through the seaports of Kazakhstan and Azerbaijan reached 3.3 million tons in 2024, 20% above the 2023 level, while container traffic within the same scope rose 176% to 56,500 twenty-foot equivalent units (TEU). Freight remains the principal basis of integration. Oil transit, prospective electricity links, and joint investment instruments are extending cooperation into adjacent sectors. Kazakhstan's use of the route for oil exports is also rising: according to KazMunayGas reports, Kazakhstani oil shipments from Aktau through the Baku–Tbilisi–Ceyhan route increased by 34% to 1.4 million tons in 2024. At COP29 in Baku on November 13, 2024, Azerbaijan, Kazakhstan, and Uzbekistan signed a strategic-partnership agreement on producing and transmitting green energy,...
