1971
Expansion of the Speyer plant. Construction of a production line for prefabricated brick houses in Ergoldsbach.
1976
Expansion of the Herrenteich plant. Cessation of prefabricated brick house production in Ergoldsbach.
1979
Expansion of the Speyer plant.
1981
New construction of the roof tile Plant II, Line 3 in Neufahrn.
1984
Modification and expansion of the main office in Neufahrn.
1987
New construction of the roof tile Plant II, Line 4 in Neufahrn.
1989
New construction of a sump house in Neufahrn.
1990
Modernisation of Processing in Neufahrn.
