Kazakhstan’s renewed push for deeper ties with the European Union has placed the Middle Corridor, critical raw materials and energy security at the centre of Brussels’ wider effort to reduce dependence on Russia and China.
President Kassym-Jomart Tokayev visited Brussels on 23 June for talks with European Council President António Costa and European Commission President Ursula von der Leyen. The meeting was formally presented as a step in the EU-Kazakhstan strategic partnership, but its practical importance lies elsewhere: transport routes, minerals, aviation, energy and the physical infrastructure needed to make political diversification credible.
For the EU, Kazakhstan is no longer simply a Central Asian partner with which to maintain diplomatic balance. It is a large resource state, a transit country between China and Europe, and a supplier of oil and uranium to European markets. The joint statement issued after the Brussels talks described the EU as Kazakhstan’s leading trade and investment partner and listed critical raw materials, energy, transport, digitalisation and emerging technologies among the main areas for deeper cooperation.
That list reflects Brussels’ changed priorities. Since Russia’s full-scale invasion of Ukraine, the EU has tried to reduce its exposure to Russian energy, Russian-controlled transport routes and concentrated supply chains dominated by China. Kazakhstan sits across several of those files. It is part of the Trans-Caspian Transport Corridor, commonly known as the Middle Corridor, which links China and Europe through Central Asia, the Caspian Sea, the South Caucasus and onwards to European markets.
The route has gained political value because it bypasses Russia. Its commercial value, however, depends on whether governments, railway operators, ports and investors can remove bottlenecks that have long limited capacity, speed and reliability. The Brussels statement therefore matters less as a diplomatic declaration than as another test of whether the EU can turn connectivity language into working transport infrastructure.
The two sides underlined the strategic importance of the Trans-Caspian Transport Corridor and welcomed cooperation under the EU’s Global Gateway strategy. They also noted the signing of a Horizontal Aviation Agreement and the conclusion of negotiations at technical level on visa facilitation and readmission agreements. These measures are not headline-grabbing individually, but together they point to a broader attempt to connect Kazakhstan more closely to European markets, business travel and regulatory frameworks.
Money is also beginning to follow the language. The statement referred to an agreement with the European Investment Bank worth €150 million to support transport connectivity, as well as a memorandum with the European Bank for Reconstruction and Development for an internationally accredited chemical-analytical laboratory in Kazakhstan. The laboratory is relevant because mineral supply chains require not only extraction, but certification, testing, transparency and standards that European companies and regulators can accept.
Critical raw materials are the second major driver. The EU and Kazakhstan have already established a partnership on sustainable raw materials, batteries and renewable hydrogen. The Commission describes that initiative as an effort to develop secure and sustainable supplies of raw and refined materials, while also building hydrogen and battery value chains. In Brussels, both sides committed to advancing the roadmap for that partnership.
The attraction for Europe is clear. The EU’s auditors warned earlier this year that the bloc’s efforts to diversify imports of metals and minerals critical for technology, defence and the energy transition had not yet produced tangible results. The European Court of Auditors also found that strategic partnerships with third countries had yet to deliver clear gains. That makes Kazakhstan a test case. The issue is not whether another memorandum can be signed, but whether supplies can be financed, certified, transported and processed at scale.
Energy remains part of the calculation. The Brussels statement identified Kazakhstan as an important supplier of oil and uranium to Europe and referred to potential cooperation in renewable and civil nuclear energy. This gives the relationship a wider meaning than minerals alone. In practice, Kazakhstan is being asked to help Europe diversify several supply chains at once: fossil energy, nuclear fuel, transport routes and future industrial inputs.
For Astana, the benefits are also visible. Deeper EU engagement offers investment, technology, aviation contracts, regulatory access and a counterweight to dependence on Russia and China. The announced certificate agreement between Air Astana and Airbus, covering up to 50 A320neo and A321neo aircraft worth €7.145 billion, shows how the relationship extends beyond raw materials into industrial and commercial cooperation.
The limits should not be ignored. Kazakhstan remains geographically exposed, economically linked to Russia and deeply connected to Chinese trade routes. The Middle Corridor itself crosses multiple jurisdictions, ports and rail systems, any of which can slow delivery. European policy also faces a familiar gap between ambition and implementation. Brussels has spoken for years about resilience, diversification and autonomy. The test is whether those words produce functioning supply lines.
Tokayev’s visit therefore should not be treated as a routine Brussels encounter. It is part of a wider contest over how Europe secures the materials, routes and energy it needs in a more fragmented geopolitical environment. Kazakhstan is not a simple answer to Europe’s supply-chain problem. It is one of the places where Europe’s diversification strategy will either become practical or remain declaratory.
