For more than 70 years – gaining, applying and sharing our experience

Since the end of the 1940s, the engineering competence for the East German potash and rock salt industry par excellence has been established in Erfurt. From 1952 as KALI-INGENIEURBÜRO Erfurt, and since 1956 at the headquarters in Arnstaedter Strasse 28, ERCOSPLAN continued this tradition from 1992 as a management buy-out foundation after the political change in Germany.

Today, with 200 employees at five locations, we are active worldwide both for the potash and rock salt producers themselves, for investors in new mineral salt projects or as independent experts for mining and environmental authorities or also for financial institutions and supervisory bodies of international financial trading houses as well as for national or international arbitration courts.

years of experience
group of companies

What do we do?

We do everything about salt!

Mineral salts – whether solid or in dissolved form – are our profession, as raw materials for potash fertilizer production and other applications in the chemical industry or as host rocks for the underground storage of chemical waste or radioactive waste repositories.

Thematically, our services range from exploration and evaluation of mineral salt resources, to extraction and processing, including the planning and optimization of the related processing facilities, to environmental protection during ongoing production. Both for decommissioned potash and rock salt mining operations and for other mining sectors, we advise and plan for the subsequent use and closure of mines including the related monitoring and risk assessment.

With regard to planning maturity, our service starts with the formulation of an innovative project idea and ranges from early planning and cost studies through classic feasibility studies to the final planning stages, including all aspects of environmental protection and sustainability as well as permit management and construction and installation supervision.


Consulting – Evaluation – Assessment – Planning – Monitoring

For the mineral salt industry

we offer

  • from geological exploration and economic evaluation of solid mineral salt deposits or natural brines,
  • to conventional underground or solution mining of solid mineral salts or extraction of natural brines,
  • processing of solid or liquid mineral salt resources and conditioning of by-products,
  • disposal of solid and liquid residues resulting from such operations,
  • as well as any other aspects of environmental protection and sustainability

innovative concepts and professional engineering – everything from one source – for more than 70 years

For mine backfill, the underground storage of hazardous waste and radioactive waste repositories in the saline host rock

we provide you

  • starting with the basic geological investigations for site selection on a regional scale or the delineation of suitable mine sections in the already existing mine workings,
  • to mining activities to create and reuse underground cavities in the saline host rock,
  • to the verification of the long-term safety of underground storages and repositories

with our wealth of experience in underground mining – for more than 70 years.

For special mining projects

we provide you with

  • custom-made concepts and solution based approaches for underground projects
  • well-founded cost analyses and comparisons of variants
  • solutions and strategies for technical and economic challenges
  • mine damage and abandoned mine assessments
  • concepts for stabilization and restoration measures
  • support for research projects
  • support for official approval procedures

based on our in-depth expertise and many years of experience in mining whether in saliferous rock or underground mineral deposits – for more than 70 years.


New brooms – old hands – at home in Thuringia, Germany, at home in Europe and the world!
It’s the mix that counts.


From seven decades of successful engineering activities in the field of potash and rock salt mining and processing of mineral salts, with the storage of hazardous waste and radioactive waste repositories as well as with special mining projects in the saline host rock, we know only too well: the world we live in is changing – and we are changing with it! Tradition and experience must go hand in hand with visions so that innovations can succeed. This is one of the reasons why we have a healthy mix of old and young, of experts from 8 different nations, from Germany, Europe and the world.

Our Employees

Our Employees’ Stories

Get to Know Our Employees and Their Jobs at ERCOSPLAN Better


Competent – Experienced – Reliable

Deposit and host rock

For further questions please contact
Andreas Jockel.


Extraction of mineral salt resources

For further questions please contact
Thomas Kießling.


Processing of mineral salt resources

For further questions please contact
Eike Kaps.


Backfilling and underground storage

For further questions please contact
Detlef Wolff .


Foto: Bundesgesellschaft für Endlagerung mbH

Radioactive waste repositories

For further questions please contact
Thomas Teichert.


Special mining projects

For further questions please contact
Christian Assmuth.


Mine damages

For further questions please contact
Carsten Ackermann.


Abandoned mines

For further questions please contact
Heidrun Rauche.


Environmental protection & sustainability

For further questions please contact
Anke Kröger-Herke.


more details


You too can benefit from our many years of know-how and our experienced employees

Werden Sie unser Kunde

ERCOSPLAN is a worldwide active, middle-class company specialised in consulting and engineering services for the mineral salt industry for 7 decades. As successor of the former KALI-Ingenieurbüro, we support our Clients in the fields of process engineering, mechanical and plant engineering as well as electrical and process control engineering from the initial project idea to the final product in the areas beneficiation, processing, transportation, handling and storage of mineral salts as well as projects for backfilling of mines or caverns with building materials or waste. Furthermore, we are handling projects for our Clients in the fields of environmental protection, sustainability, mine damage analysis and prevention.

Did our know-how convince you and have we piqued your interest? Then please contact us at … kunde@ercosplan.com


Consulting – Evaluation – Assessment – Planning – Monitoring

You can’t do everything on your own! Are you looking for competent support for your project in, around and with salt? Then we are your partner! We have already led numerous projects to success through our competence and experience. We look back on decades of experience in project management or as equal partner.

Let’s work together! Contact us at…partner@ercosplan.com


You are looking for challenges – we offer them

Schreibtisch mit zwei ERCOSPLAN Mitarbeitern

We are always looking for motivated employees who are willing to work with us on interesting and challenging projects. In addition to an attractive pay and pleasant working atmosphere in highly specialised, motivated teams, ERCOSPLAN offers interesting and varied work tasks in national and international projects. In a modern, well-equipped working environment, our employees always have the opportunity to constantly develop themselves and to take responsibility for their own projects. Are you interested already?

We look forward to receiving your meaningful application
by email to personal@ercosplan.com
or by post to:
ERCOSPLAN Group of Companies
Attn. to: Mrs Pomerenska, Arnstaedter Strasse 28, 99096 Erfurt, Germany

Note: We use your data exclusively for applicant management. By submitting the application, the applicant consents to the storage of personal data during the application process. This consent can be revoked at any time.