Cross-border converter
CNAE-2025 51.21 → 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
51.21
Freight air transport
51.21
Transporte aéreo de mercancías
51210
Transportes aéreos de mercadorias
Compreende o transporte aéreo de carga e correio, em voos regulares ou não.
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 51.21 to CAE Rev 4" and stays in sync with our monthly Market Intelligence sync.