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Werra-Wintershall – Heringen

The Wintershall site is one of four locations amalgamated in 1997 in order to form the Combination Works Werra. The size of the entire underground expanse of the sites Hattorf, Wintershall, Unterbreizbach and the Merkers Adventure Mine is comparable to the city of Munich. The Wintershall works is situated on the outskirts of the Hessian town of Heringen.

Photographs of the Werra-Wintershall site

Workshop Association

As a start of the increased cooperation between the sites, 1993 saw the amalgamation of the aboveground and the central workshop in Heringen. This combined workshop now takes on the construction of all new facilities and serves as a pool of specialist mechanics. Their services are now available to all K+S facilities and companies, but may also be consultants to third parties.

A partner to the region

With approximately 950 employees above ground, and more than 1,250 underground-employments, among them nearly 150 apprentices and trainees, the Wintershall works is one of the most important regional employers. Potassium and magnesium production significantly contributes to the region’s economy. This facility regularly award contracts to regional sub-contactors and service providers, thereby creating an economic base for a large number of regional jobs. The site is also committed to supporting social institutions, associations and clubs.


2005 Additional crude salt from Unterbreizbach, due to the sylvinite project
1979 Implementation of the underground mining association with Hattorf
1976 Beginning of electrostatic crude salt separation (ESTA)
1972 Commissioning of the Underground Disposal facility in Herfa-Neurode
1962 Beginning of production of ultrapure salts
1929 Foundation of the Wintershall AG
1900 Beginning of excavation of the Grimberg shaft
1893 Foundation of the Kalibohrgesellschaft Wintershall


DIN EN ISO 9001ff. certificate Wintershall (pdf)

GMP+ certificate Wintershall (pdf)

GMP certificate (pdf)

Halal certificate (pdf)

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