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

Here is Why You Need An Adapter

The outlet and plug type used in Malaysia 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

Malaysia

In Malaysia, outlets of type G are in use.

Type G