Don’t require power plug adapter while traveling from North Korea to São Tomé and Príncipe.

Here's why you do not need an adapter

The outlet and plug type used in São Tomé and Príncipe are C and F and in North Korea is C and they are compatible with each other.

North Korea

In North Korea, outlets of type C are in use.

Type C

São Tomé and Príncipe

In São Tomé and Príncipe, outlets of type C and F are in use.

Type C

Type F