Supplier ranking in mining systems in terms of quality: Case study: Public company for underground coal exploitation Resavica

The aim of this paper is to show the application of multi-criteria analysis (PROMETHEE method) in the selection of the suppliers which are working in the mining systems, specifically in the Public Company for the Underground Exploitation of Coal Resavica (PCUEC Resavica) – Serbia. The company ranking was done in terms of quality according to seven criteria. The criteria cover the most prominent aspects of the quality management of suppliers. Accordingly, 5 suppliers were taken into consideration. In ranking process the expert knowledge of the specialists from PCUEC Resavica was used. Firstly, the determination of the importance and the impact of certain criteria to the process of the suppliers selection was done, and after that the assessment of the suppliers according to each criteria is performed by company experts. PROMETHEE method is used for final ranking of the suppliers. Obtained results show that applied combined method gives excellent results and it can be used for solving a large scale of complex problems in mining systems.