Hannover manager Kenan Kocak has identified the 26-year-old as a replacement for departing Linton Maina.
The Ghanaian is available on a 2.5 million Euro transfer fee with Hannover believed to be hugely interested.
Antwi-Adjei has spent two seasons with the already relegated Bundesliga side who will cash in on the Ghanaian if the side is finally relegated from the German top-flight.
Having gained experience in the Bundesliga, the Werder Bremen target, will be a massive addition to the second-tier side in the new campaign.
The Ghanaian is yet to agree to new terms of contract extension in waiting for better offers from other clubs so appears selling is the most likely scenario for the German outfit.