The oeSENC
charts have exactly the same content as the official charts issued by the Hydrographical Offices. Nothing added, nothing dismissed.
Portugal is under negotiations to include them since a while and hopefully we will get this as oeSENC as well. Would come with
Madeira and
Azores, not sure about Cabo Verde.
The official Cabo Verde charts are edited and issued by PT.
For
single charts or a limited region like Cabo Verde you might consider S-63 as well. Licensing for the minimal period (3 months) brings costs down. Charts stay afterwards on the system, just updates cease.