In this article, cost management practices application in project management is analyzed in a company from the mining industrial sector. International standard processes from the Project Management Institute have been adapted to further apply them in a company project specialized in designing and manufacturing metal frames, mechanical mounts and maintenance services. An applied research project has been carried out to propose and adapt a work method for cost management in projects belonging to this sector. Besides the action- participation method has been used to prove the validity of this kind of project. Results have been analyzed to improve the method and to propose guidelines for future works. Through this study, we show the advantages of applying better practices of project management in real cases. The application of this method has brought great improvements in the company, and starting from a permanent improvement and adaptation process, its frame can be applied to other companies belonging to the same economic sector.
