The process of Poland's integration with the European Union entails many transformations in the sphere of enterprise management. The success of this process depends, to a great extent, on implementing the EU standards verified in the market-oriented economy. One of them is a quality management system meeting the requirements of ISO series 9000:2000 standards. In Poland, for several years, a dynamic process of implementing such systems in mining plants has taken place. Such implementation of the management system is a special challenge in relation to mining plants, where increasing the quality standards of the offered coal is one of the most important problems to be solved. It is to be kept in mind that each group of customers have their own specific requirements in relation to the quality parameters of fuel, including coal. The implementation of the quality management system in the mining plant bring many defined benefits. First of all, one can observe improvements in the decision-taking processes relating to management process, improvement in the circulation of documents and supervision of legal acts. Besides, the system makes it possible to ensure prompt and continual supplies of coal with required parameters.