You Do Need power plug adapter while traveling from Kiribati to Argentina.

Here is Why You Need An Adapter

The outlet and plug type used in Argentina are C and I and in Kiribati is I. This is how they look like.

In Kiribati, outlets of type I are in use.

Type I

In Argentina, outlets of type C and I are in use.

Type C

Type I

I am from

going to