Interbrew, the Belgian brewing giant, has offered to acquire Brauergilde Hannover, the parent company of German brewer Gilde Brauerei, in a deal valued at €523m (US$526.6m). In a move, which will strengthen Interbrew's position in the German market (it already owns Becks and Diebels after acquisitions last year), the Belgian company also offered to buy the 14.6% of Gilde that Brauergilde Hannover did not own, once the first deal had been completed.