The article the processes of flow of material goods and information in the transportation system of a steel company were analyzes in terms of their impact on the entire supply chain, including the processes of internal transportation. The aim of this publication was to develop a model for assessing organization and internal transportation costs with regard to the supply of materials and raw materials between different sources (inlets) and outlets in the steelmaking process. The model was verified based on a case study conducted in the Huta Małapanew steel plant, in Ozimek. The simulation was concerned on the possibilities for improving transportation in terms of organization and in terms of reducing the overall costs.Keywords: metallurgy, steelmaking, internal transportation, assessment model
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