At the moment I dwell in the south, in Malmoe, but I have my home town in the north in Arvidsjaur.
Tannin is a chemical compound belonging to the polyphenols.
Tannic acid is a special form of tannin, but the two are not the same. And it is true that tea does not contain tannic acid, but it do contain various types of polyphenols = tannins.
Tea tanninsTannins Tannic acid