You Do Need power plug adapter while traveling from Côte d'Ivoire (Ivory Coast) to Sint Maarten.

Here is Why You Need An Adapter

The outlet and plug type used in Sint Maarten are A and B and in Côte d'Ivoire (Ivory Coast) are C and E. This is how they look like.

Côte d'Ivoire (Ivory Coast)

In Côte d'Ivoire (Ivory Coast), outlets of type C and E are in use.

Type C

Type E

Sint Maarten

In Sint Maarten, outlets of type A and B are in use.

Type A

Type B