Poland–Lithuania cross-border economic zone at the Suwałki Gap

The proposed Poland–Lithuania cross-border economic zone could combine access to the Polish market, Lithuanian investment land and the Via Baltica transport corridor. It is expected to target defence and technology companies, but it remains an early-stage strategic concept. No common tax, state-aid or legal framework has yet been publicly confirmed. Investors should focus on energy capacity, labour availability, permits, infrastructure and access to defence-sector procurement rather than assume that financial incentives will be available.

The proposed Poland–Lithuania cross-border economic zone would connect the Polish market, investment sites in Lithuania and the Via Baltica transport corridor. The concept is intended primarily for defence manufacturers and technology companies.

However, investors should currently treat the zone as an emerging strategic project rather than an established investment incentive programme. The initiative could change how the Suwałki Gap is perceived: from an area discussed mainly in the context of regional security to a potential location for defence, electronics and digital infrastructure projects.

Is the joint Poland–Lithuania economic zone already being created?

No. Lithuania presented the proposal in late January 2026.

In May 2026, Lithuanian Vice-Minister of the Economy and Innovation Paulius Petrauskas said that a preliminary agreement was being prepared. Its purpose would be to open formal negotiations and establish negotiating teams representing both countries. As of July 2026, however, no publicly confirmed announcement has been issued stating that the agreement has been signed.

The idea was initially presented by Lithuanian President Gitanas Nausėda. Lithuanian Minister of the Economy and Innovation Edvinas Grikšas subsequently said that the Polish side had responded positively to the concept.

Lithuania has identified approximately 20 hectares of land in the Lazdijai district, near Kapčiamiestis. The site could potentially be linked to investment areas around Suwałki in north-eastern Poland.

How could the Poland–Lithuania cross-border economic zone work?

The investment estimate was presented by Cezary Cieślukowski, President of the Suwałki Special Economic Zone (SSSE). It is an initial assessment of the region’s potential, not a government forecast or a confirmed pipeline of investment projects.

Lithuanian representatives have identified the Johor–Singapore Special Economic Zone as a possible source of inspiration. Malaysia and Singapore signed an agreement covering that project in January 2025 to facilitate investment, workforce mobility and the development of a shared business ecosystem. Within the European Union, any comparable arrangement would need to accommodate EU state-aid rules and two separate national tax systems.

Why could the Suwałki Gap attract defence-sector investors?

The region forms part of the only land corridor connecting Poland with Lithuania and the other Baltic states.

The completion of key Via Baltica sections has improved road transport, while the corridor also has strategic importance for military mobility. Manufacturers of components, unmanned systems, electronics and software could therefore gain proximity to defence-sector customers in several NATO countries.

The proposal is also supported by established commercial links between Poland and Lithuania. Between January and November 2025, bilateral trade in goods reached EUR 9 billion. Polish direct investment in Lithuania stood at nearly EUR 1.28 billion in the third quarter of 2025, while Lithuanian investment in Poland reached almost EUR 810 million.

The economic-zone proposal should not be confused with plans for a joint military training ground. These are separate initiatives. In March 2026, Polish Deputy Minister of National Defence Paweł Bejda stated that Poland was not interested in extending the planned Kapčiamiestis training ground into Polish territory.

What could prevent the Poland–Lithuania economic zone from proceeding?

The main obstacle is the absence of a common legal architecture.

Poland supports new projects through the Polish Investment Zone (PSI), which allows eligible investors to obtain a Corporate Income Tax (CIT) or Personal Income Tax (PIT) exemption for qualifying new investments throughout Poland. The location of a project still affects factors including the minimum required capital expenditure and the maximum permitted level of regional investment aid.

Read more: Polish Investment Zone – planned changes and what they mean for investors.

Lithuania operates its own free economic zone regulations. A shared investment brand would therefore not automatically create a shared tax regime.

Manufacturing projects may be constrained by the relatively small local labour market and the distance from major urban centres. For data centres, the key factors would include available power capacity, grid redundancy and the ability to install backup power systems. A location decision should therefore be preceded by technical, workforce and tax advisory.

Should investors already include the zone in their location strategy?

Yes, but only as an alternative scenario or a potential second stage of expansion.

Companies operating in defence, electronics, drones, cybersecurity and digital infrastructure can already compare Suwałki and the Lazdijai region with other locations in Poland and the Baltic states. They should not, however, build financial models around tax incentives whose conditions have not yet been agreed.

The most realistic outcome may be a coordinated cross-border investment corridor rather than a single zone operating under identical legislation. Such a model could involve separate legal entities and permits in each country, combined with coordinated investor services, shared infrastructure planning and production divided between facilities within one supply chain.

The project is unlikely to transform the economy of north-eastern Poland on its own. It could, however, become a pilot model for investments combining regional security, industrial development and the economic activation of border areas.

Its value will ultimately depend on the readiness of the investment sites, access to infrastructure and the commitment of specific investors—not on the use of the term “special economic zone”.