Cross-border converter
CNAE-2025 03.21 → CAE Rev 4 equivalent (Portugal)
Spain's national activity classification (CNAE-2025) shares its 4-digit backbone with the EU NACE Rev 2.1 standard. We use that backbone to surface the equivalent CAE Rev 4 subclass(es) used in Portugal.
Shared EU parent
03.21
Marine aquaculture
03.21
Acuicultura marina
03210
Aquicultura em águas salgadas e salobras
Compreende a cultura, em águas salgadas e salobras, de: peixes (inclui peixes ornamentais), de crustáceos e moluscos; produção de sementes de bivalves, juvenis de lagosta, pós-larvas de camarão e de outras espécies cultivadas em fase embrionária do seu ciclo biológico; algas e de outras plantas marinhas.
About this conversion
CNAE-2025 is the activity classification used in Spain. CAE Rev 4 is the equivalent system in Portugal. Both are national implementations of EU NACE Rev 2.1, so any 5th-digit subclass in one system can be traced back to a shared 4-digit EU class — and from there, forward into the other country's subclasses.
This page is generated for the query "CNAE-2025 03.21 to CAE Rev 4" and stays in sync with our monthly Market Intelligence sync.