PO ME2L Vendor Address

Im trying to locate the table that stores the Address details in the PO. In the Address tab. A client of mine stores One Time Vendor data in that area.

It being...

Trading Name: OTV Name

Address Details... etc.

The Trading name in that record is what im chasing.

I've tried EINE, EINA, and EKAN.

In addition to that im chasing Sole source data. This information is entered in the create info record, info record note. This relates to the PO. I don't know if this is standard usage, but it doesn't look like it.

All I have is screenshots from the client. From there I try to work out what tables I require and request them to be dropped into a Data warehouse. So far ive been wrong.

Can anyone help?