1878
Acquisition of oil and corn mill, field Name 'im Holz' (Wood)
1938
Start of the industrial wood fiber production.
1949
Acquisition of the Heilbronn factory.
1953
Foundation of the J. Rettenmaier & Söhne OHG
1956
Beginning of the cellulose powder production.
1967
JRS develops new cellulose granules.
1975
Further refinement of cellulose powder.
1977
JRS provides cellulose fibers as an environmentally-friendl alternative for the asbestos processing industry.
1988
Production of fiber pellets for road construction in the Calenberg/Hanover plant.
1992
Start of production of MCC products (microcrystalline cellulose) for the pharmaceutical industry at the Weissenborn site in Saxony.
1993
Start of production and market introduction of wheat fiber.
1994
The Lodenau site begins production of fiber pellets for road construction.
The first JRS office opens in Hong Kong.
1997
Start of production of carboxymethyl starch (CMS) at the Pirna site.
1998
Start of production at the JRS plant in USA schoolcraft.
1999
Start of production of croscarmellose at the Pirna plant.
2001
Start of oat fiber production at the Lodenau factory.
2003
JRS Pharma established in Europe and USA, business expansion with further production sites in Finland and USA.
Start of production of colloidal MCC at the Weissenborn site.
2004
Capacity expansions for MCC production.
2006
Another plant in Cedar Rapids, United States for food products.
Joint venture between JRS Pharma/GMW, Gujarat Microwax Private Limited (GMPL, Ahmedabad, Gujarat, India).
2009
Start of production of HPMC and MC work in Zacapu, Mexico.
2010
Presentation of UFC (ultra-fine cellulose).
Integration of ProJect Pharmaceutics GmbH, Biotech Services in JRS Pharma Business.
Start of production in Mansfield Plant, UK
2011
Start of production at the Ellwangen site.
Celonic AG, Biotech Services joins the JRS Pharma Family
2012
Completion of the Balakhna factory in Russia.
2013
Rettenmaier Switzerland AG founded.
Absorption Corp./ Healthy Pet, USA, became part of the Petcare-Family.
2014
Food Application Laboratory opened in Asia, USA.
2015
Integration Canadian Harvest Oat Fiber-Production
JRS South Africa founded
JRS Holzenergie Wilburgstetten.
Rettenmaier SEA Malaysia.
2016
JRS-plant Brenil, France
Integration JRS Holzenergie HEW Ettenheim and Herbrechtingen.
2017
Aquisition Allied Blending
2018
Opening of MCC plant, China and new offices in Latvia, Canada, Ukraine, Denmark and Korea
2019
Production start for alginates at the Landerneau plant
Joint Venture with Silvateam