Dynamically Generating List Of Values

Let me explain, I am trying to auto generate a list. So I have one cell A1 with value "ABC"In another sheet,

I have a list of products in cells A:1 to A:100 and "ABC" is one of them, but is there 4 times. I have value in B:1 to B: 100

What I need is to create a list of all the values in Colum B that are related to "ABC"

Colum A Colum B
ABC 10
ABC 20
ABC Test
ABC TBD

Based on "ABC", I need a list to generate a list:
10
20
Test
TBD

I try Arrays and VLookup and Match and index but they are all single data return.