Akzo Nobel modernises Bitterfeld site. Speciality chemical manufacturer Akzo Nobel relies on its site in Bitterfeld in Eastern Germany. General Manager of Chloralkali, Martin Riswick, announced on Wednesday at the commissioning of a new measuring station that the company will invest further there. Plant manager Stefan Kauerauf added that between 2.5 and 3 million euros have been invested in Bitterfeld every year since the year 2000.