PO items with multiple goods suppliers

Hello MM experts!

We have a requirement where a PO has multiple items and each line has a different goods supplier both foreign or local countries so inbound tax determination will be different.

Example:

Item 1 - goods supplier foreign country (no tax)

Item 2 - goods supplier foreign country (no tax)

Item 3 - goods supplier local/domestic (domestic taxes apply)

Where in the PO can we maintain the country of origin of the line items?

Thanks in advance.

Alvin