History
A brief review of our company’s history
1947
Foundation and start of production at the “Birkenheck“ and “Walter 1“ quarries
1954
Start of production at the “Wimpfsfeld I“quarry
1956
Start of production at the “Salz” quarry
1965
Start of production at the “Maienburg“ quarry
1969
Commissioning of our central laboratory
1970
Start of production at the “Georg“ quarry
1971
Start of production at the “Wimpfsfeld II“ quarry and commissioning of the “Wimpfsfeld I“ homogenisation plant
1976
Takeover of Müllenbach & Thewald, Höhr-Grenzhausen
1977
Commissioning of the “Maienburg” homogenisation plant
1983
Start of production at the “Sedan“ quarry
1983
Commissioning of the “Maienburg“ preparation plant
1984
Commissioning of the “Sedan“ homogenisation plant
1984
Takeover of Capitain & Co., Vallendar
1988
Takeover of the “Töpferkaut“ quarry
1988
Commissioning of the “Sedan” preparation plant
1990
Founding of stephan schmidt meissen gmbh
1991
Takeover of TGA Tonbergbau Grube Anton GmbH & Co. KG
1991
Takeover of Ceramat s.r.l., Italy
1994
Certification in accordance with ISO 9002
1995
Founding of Progind s.r.l., Italy
1995
Start of production at the “Böhmsfund” quarry
1996
Certification in accordance with ISO 9001
1997
Founding of Cerargillum S.A., Spain
1998
RHP certification
1998
Founding of MTG Mittelhessische Tonbergbau GmbH, Giessen
1999
Takeover of Marx Bergbau GmbH & Co. KG
2000
EMAS certification
2001
Takeover of Rohstoff Ton e.G.
2006
Innovation Award of the Rhineland-Palatinate Raw Materials Industry
2008
Opening of a sales office in Legnica, Poland








