# Končar and Siemens Energy open €20 million transformer boiler factory in Croatia

Končar and Siemens Energy officially opened the new Končar – Transformer Boilers (KTK) factory in Sesvete Kraljevo, Croatia, with an investment of nearly €20 million. The joint venture will employ over 400 workers and produce about 160 transformer boilers annually for export.

- Type: New facility
- Announced: 2026-01-23
- Where: Sesvete Kraljevo, Croatia
- Value: $21.0M (20.0M EUR)
- Jobs: 400
- Starts operating: 23 Jan 2026
- Status: completed
- Capacity: 160 transformer boilers annually
- Products: transformer boilers
- Sectors: [Power Generation Equipment](https://endata.com/sectors/power-generation-equipment.md), [Electrical Equipment](https://endata.com/sectors/electrical-equipment.md)

## Companies

- [KONČAR](https://endata.com/companies/16085.md)
- [Siemens Energy](https://endata.com/companies/6803.md) (partner)

## Sources

- [en.lider.media](https://en.lider.media/2026/01/23/koncar-and-siemens-energy-open-factory-worth-20-million-euros/), 2026-01-23: "The opening of the Končar – Transformer Boilers factory represents one of the more important milestones in the recent history of the Končar Group."

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Data from Endata (https://endata.com/). Announcements are summarized from public sources and may be incomplete; check the linked originals.