Our History

The Rettenmaier family acquires an oil and corn mill with the field name "Im Holz" (Wood).

Industrial wood fiber production begins.

The Heilbronn factory is acquired.

Cellulose powder production begins.

JRS develops new cellulose granules.

Cellulose powder is refined further.

JRS provides cellulose fibers as an environmentally-friendly alternative for the asbestos processing industry.

Production of fiber pellets for road construction in the Calenberg/Hanover plant begins.

The Weissenborn site in Saxony starts producing MCC (microcrystalline cellulose) products for the pharmaceutical industry.

Wheat fiber is introduced to the market and production begins.

The Lodenau site begins production of fiber pellets for road construction. The first JRS office in Hong Kong opens.

Production of carboxymethyl starch (CMS) begins at the Pirna site.

The JRS plant in Schoolcraft, MI, USA starts production.

Production of croscarmellose begins at the Pirna plant.

Oat fiber production begins at the Lodenau factory.

JRS Pharma is established in Europe and USA. The business expands to include further production sites in Finland and USA. Production of colloidal MCC begins at the Weissenborn site.

Capacity for MCC production is expanded.

Another plant for food products is constructed in Cedar Rapids, IA, USA. A joint venture between JRS Pharma/GMW, Gujarat Microwax Private Limited (GMPL, Ahmedabad, Gujarat, India) is established.

Production of HPMC and MC work in Zacapu, Mexico begins.

UFC (ultra-fine cellulose) is presented. The Dunacell plant in Hungary for corn grain products is acquired. ProJect Pharmaceutics GmbH, Biotech Services, joins the JRS Pharma Family.

Production at the Ellwangen site begins. Celonic AG, Biotech Services, joins the JRS Pharma Family.

The Balakhna factory in Russia is completed.

Rettenmaier, Switzerland AG is founded. Absorption Corp./Healthy Pet, USA, become part of the Petcare Family.

The Food Application Laboratory is opened in Asia and USA.

 Integration Canadian Harvest Oat Fiber-Production
JRS South Africa founded
JRS Holzenergie Willburgstetten
Rettenmaier SEA Malaysia