Separating unique values from a list

I have a column full of unique values but many of them are repeating. I am looking for a quick way to make a list of each of the unique values and not include the repeating values.

For example I have the following in column A:

ABC
ABC1
ABC2
ABC3
ABC
ABC3
ABC2
ABC1

I want to make a separate list in column B with only the unique values of the original list. So it would look like:

ABC
ABC1
ABC2
ABC3

Thank you much!

Nick