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-friendly 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.
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 Willburgstetten, Rettenmaier SEA Malaysia
2016 JRS-plant Brenil, France Integration JRS Holzenergie HEW Ettenheim and Herbrechtingen

JRS Filtracel - Extract Free Cellulose