Code of Conduct for Business Partners 2020 (Chinese version)
Code of Conduct for Business Partners 2020 (English version)
Code of Conduct for Business Partners 2020 (German version)
Code of Conduct for Business Partners 2020 (Italian version)
Code of Conduct for Business Partners 2020 (Spanish version)
Code of Conduct for Business Partners 2020 (Polish version)
Code of Conduct for Business Partners 2020 (Ukrainian version)
Code of Conduct for Business Partners 2020 (Bulgarian version)
Comparison CCF – PCF (English version)
Comparison CCF – PCF (German version)
History Highlights Environment 2015 (English version)
History Highlights Environment 2015 (German version)
Statement Sustainability 2013+2015 (English version)
Statement Sustainability 2013 & 2015 (German version)
Biologische Stickstoff-Elimination, 24.10.2011 (German version)