2021
  • Conversion to 100% post-industrial recycling basis (exeption: special varieties)
2013
  • Installation of a modern surface inspection system
  • Installation of the new compressed air compressor
2012
  • Installation of a modern gas boiler and shutting down of the thermal waste utilization system as well as of the existing gas and oil boiler systems.
  • Certification in accordance with FSC and PEFC Chain of Custody
2011
  • Installation of a new process control system for raw material preparation
2010
  • Installation of a new residual materials treatment plant
2007
  • Installation of a new process control system for the paper machine
2004
  • Installation of a slit-sorting system (commissioning, III. stage)
2003
  • Replacing of the steam-heated drying hood by a gas-heated high-temperature hood (up to 300 °C)
2002
  • Replacing of the glazing cylinder with a 5 m diameter one
  • Installation of a new mechanical wastewater treatment system
2001
  • Construction of a new warehouse for finished goods, fibrous raw materials and machine parts
1998
  • General overhauling of PM I and the pyrolysis system
  • Participation in the Eco-Management and Audit Scheme of the European Union for the first time
1994
  • Extension of the finished goods store
1985
  • Commissioning of the waste heat utilization system
1979
  • Shutting down of the cellulose factory
1975
  • Shutting down and demolition of the two old paper machines
1970
  • Construction of the present paper machine with 470 cm working width
1957
  • Shutting down of the oldest paper machine
1936
  • Renovation of the cellulose factory
1927
  • Construction of a further paper machine
1895
  • Setting up of a cellulose and paper factory with 2 paper machines
1893
  • Purchase of the site of a former smelting works in Kirchhundem-Hofolpe
1874
  • Founding of the firm of Gebr. Grünewald by the brothers Caspar and Franz Grünewald