PORTRAIT
... chronicle of competence
| 1960 | Foundation of the Co. Seeland. Manufacture of sports ground material; marketing of boiler slag. |
| 1965 | Beginning of the marketing of overburden and mining material. |
| 1967 | Move of the Co. Seeland to the grounds of the former Zeche Bismarck 1/4. Preparation of grounds. Manufacture of sports ground and path construction material. |
| 1972 | Beginning of the marketing of power station by-products. Acquisition of the Messel oil slate pile; excavation of a raw material which has a one-time occurrence in Germany. Foundation of the Messel subsidiary. |
| 1974 | Beginning of the production of brick dust for tennis courts. |
| 1976 | Beginning of the production of lawn support layers for sports ground construction. |
| 1977 | Remediation of industrial sectors. Excavation of so-called burning tips under extremely difficult conditions. Preparation of sports ground and path construction material. |
| 1978 | Centralisation of the preparation activities on the newly acquired grounds in Bottrop/ Industriestrasse. |
| 1982 | Corporate name change to GELSENROT® Spezialbaustoffe GmbH. |
| 1983 | Beginning of production of recycling construction materials. |
| 1984 | Large-scale technical manufacture of extensive and intensive vegetation substrates for soil-bound areas. |
| 1990 | Operational start-up of the stone chip works Borken/Burlo (end of recultivation 2004) |
| 1992 | Foundation of the Freiberg/ Sachsen subsidiary. Commissioning of the conditioning plant. |
| 1996 | Manufacture and marketing of tree substrates. |
| 1999 | Preparation of commercially used large-scale areas for building. |
| 2003 | Operational start-up of the open storage facility at Pfaffenhofen near Munich. |


