History

A long tradition of mining.

Our company has been mining dolomite in Wellen on the Mosel river under the name Trierer Kalk-, Dolomit- und Zementwerke (today: TKDZ) since the end of the 19^th century.

As an accredited recycling business and in the interests of sustainability, we fill the cavities resulting from mining with approved alternative mineral building materials.

With our longstanding tradition and strong innovative drive, we stand for modern, sustainable mining and take responsibility for the environment and future generations.

Historical photo: factory building with smokestacks wreathed in white smoke; the river Mosel in the foreground — Dolomite has been mined in Wellen, on the Mosel river, for over 130 years.
© PORR

Historical photo: Mine train and a group of miners pose in front of the entrance to an adit bearing the inscription "Franz H. Hansen Stollen 1925". — A long tradition of mining.
© PORR

Aerial view: modern factory facilities in the midst of green and wooded areas — We stand for the modern and responsible extraction and processing of dolomite to produce high quality products.
© PORR

Top quality for over 130 years.

1881
The future "Trierer Kalk- und Dolomitwerke J. Itschert & Co." is founded by Johann Itschert; permission is obtained to erect two lime kilns.

1926
The company is taken over by Rheinisch-Westfälische Kalkwerke AG.

1929
Josef Schnuch is appointed deputy member of the managing board at the age of 23.

1951
Josef Schnuch buys TKDZ.

1965
The present-day Josef adit is driven. From this point on, extraction is exclusively carried out underground.

1970
Dolomitwerke Wülfrath GmbH buys TKDZ from Josef Schnuch, who continues to shape the company as CEO until 1976 and subsequently as a member of the company council.

2002
The Trier-based entrepreneur Winfried Meseke buys TKDZ.

2012
TKDZ becomes part of the PORR Group.

2013
In the interests of balanced and sustainable dolomite extraction, the company begins backfilling the Josef adit with foreign materials for the first time, in addition to their mining operations.

2014
The company obtains permission for a general operating plan until 2069.

2016
The company establishes its own mine rescue team.