Dortmund-based DEILMANN-HANIEL INTERNATIONAL (DHI), through its four subsidiaries based in Germany, Canada and the USA, is a leading global contracting group that delivers contracting services and mechanised solutions for the world’s mining and tunnelling industries. DHI contracting services include planning and sinking of vertical and inclined mine shafts, shaft boring, drilling and raise boring projects, roadway drivages and the excavation of underground cavities, operation of entire mines and/or production areas, manufacturing of mining machines and shaft hoisting systems, tunnelling projects (conventional and mechanised) and ground freezing. Over more then hundred years, DHI companies have realized successfully numerous projects and have built a reputation for innovation and reliability, ranking the company as a market leader in their field. DHI companies and their respective subsidiaries and affiliates are represented in most of the world’s major mining regions. The Group has for many years been delivering mining and tunnelling projects to the satisfaction of customers in Europe and in North and South America, in South Africa and Russia and as far away as Mongolia and Indonesia. Many years of experience as well as great innovation power allow DHI to successfully undertake any mining and tunnelling project, irrespective of local geography and climate conditions.