In the last 30 years, Pfeifer & Langen has built on its market position through the acquisition of sugar companies in the Rhineland and by adopting new production methods. In 1991, following the reunification of Germany, the company acquired shares in East German sugar companies through its subsidiary Diamant-Zucker KG.
In 1993, one of the most modern sugar factories in Europe began operations in Könnern/Saxony-Anhalt. In the West, Pfeifer & Langen owns four sugar factories – the Appeldorn, Elsdorf, Euskirchen and Lage locations. Beyond that stakes in sugar factories in Poland, Romania, Hungary, Czech Republic, Croatia, Italia and Ukrania were acquired.