You Do Need power plug adapter while traveling from Sint Maarten to Saudi Arabia.

Here is Why You Need An Adapter

The outlet and plug type used in Saudi Arabia is G and in Sint Maarten are A and B. This is how they look like.

Sint Maarten

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

Type A

Type B

Saudi Arabia

In Saudi Arabia, outlets of type G are in use.

Type G