Economic Potential of the Three Seas Region



The last 15 years marked the phase of robust economic growth for the Three Seas Region. The 3SI countries were listed among the most dynamically developing areas of the EU, as their economic growth dynamics was higher than average for the Community (the exception being Croatia).

The position of the Three Seas Region within the EU was improved by good economic results of its member states. In 2004, the Three Seas Region generated 15.2% of the EU’s GDP, while in 2018 that percentage grew to 19.1%. That upward trend was even noticeable in the period of the financial crisis, i.e. the years 2008-2009. Thus, the Three Seas Region proved that its macroeconomic foundations were sound and able to revive the economy after a short-term recession.

An important source of economic stability for the 3SI countries has been their concentration on industrial production.  Eight out of ten EU countries with the highest share of the GDP added value generated by the industrial sector are the 3SI countries. The average share of added value generated by industrial production in those countries was 16.7%, as compared to barely 13% for the entire EU. The Three Seas Initiative members have resisted the general deindustrialization trend prevailing among developed countries. This has turned the Three Seas Region into a vital industrial centre for the entire European Union, in less than twenty years from joining the EU.

We owe the development of the economic potential of the Three Seas Region to strong trade links with the biggest EU economies. The trade exchange with the Three Seas Region is particularly important for the German economy. This is connected with German investments in the automotive sector. Many German automotive companies have their car components and low-end models manufactured in the 3SI countries. Thanks to investments of German automotive manufacturers in southwestern Poland, the Czech Republic, Slovakia, Hungary and western Romania, a cluster of German-Central European supply chain was formed (IMF 2013). Considerable involvement of the Three Seas countries in Russia’s foreign trade results from the dependence of Central Europe on Russian energy carriers. It may also be noticed that the Three Seas Region does not have any strong commercial links with more distant countries in which industrial production has a lower share in GDP. This is the question of fewer investors from those countries doing business in Central Europe and insufficient ability of the Three Seas countries to offer attractive goods that could beat those offered by very competitive US and UK markets. Competing successfully with those markets would require innovation and strong capabilities in organization and logistics. It is worth noting that the high level of industrialization of the 3SI Region does not mean that other economy sectors are neglected.

Source: "W kierunku budowy bliższych powiązań. Trójmorze jako obszar gospodarczy" [‘Building Closer Connections. The Three Seas Region as an Economic Area’], Polski Instytut Ekonomiczny [Polish Economic Institute]

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The Three Seas Local Government Congress under the Honorary Patronage of the President of Poland



The 6 th edition of the Three Seas Local Government Congress will be held May 27-28, 2026, under the Honorary Patronage of the President of the Republic of Poland, Karol Nawrocki. This distinction recognises the growing importance of the event, which has become a key platform for cooperation among the countries of Central and Eastern Europe, both in the economic and infrastructural dimensions.



Over five editions of the Congress (2020–2025), more than 5,000 participants from 24 countries have taken part, 104 discussion panels have been held, and 64 foreign delegations have visited Lublin. The scale and international character of the event confirm its increasing role in shaping dialogue across the Three Seas region.




We, the countries representing Central and Eastern Europe (…) through the Three Seas Initiative, Via Baltica, and Via Carpatia, share not only our voice and vision of building a civic community, but also tangible results showing that the Baltic States and the countries of Central and Eastern Europe are capable of implementing major infrastructure projects, emphasised President Karol Nawrocki during his visit to Vilnius last month.



These words perfectly capture the spirit of the Three Seas Congress, which brings together political, academic, and business communities around a shared goal, building a strong, integrated, and cooperative Central and Eastern Europe.



It is also worth noting that in April 2025, Poland hosted the 10th Three Seas Initiative Summit. During the event, participants emphasised the importance of infrastructure and economic cooperation in the region and the need to strengthen cohesion across Central and Eastern Europe. This year, the cooperation format has been expanded to include new members – Albania and Montenegro joined the Three Seas Initiative in the capacity of associated participating states, while Spain and Turkey became new strategic partners. It has already been announced that the 11th Summit will take place in Croatia in 2026.



We cordially invite you to take part in the Three Seas Local Government Congress! Registration will open in the end of January. More details will soon be available at www.congress.lubelskie.pl and on our social media channels.

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