Evaluation and Selection of Suppliers of Raw Materials for the Tire Industry in the Sustainable Supply Chain Using FAHP, Interval TOPSIS and Interval Shanon

The purpose of this research is to provide a model and model for selecting a sustainable supplier. The researcher, through library studies, interviews with experts and experts in tire producing companies, and preparing a questionnaire to identify the factors that affect this relationship. Indicators that influence the selection of sustainable supplier selection in this research are financial position and market share, proposed price, timely delivery of goods, recycling rates, the use of clean technologies, contamination, the number of trained staff and employee satisfaction, and Customers In this research, weighing these indices was determined by comparing the fuzzy pair between these indices and using the fuzzy hierarchical process analysis method. In order to accurately determine the weight of the indices, Shannon Entropy method was used. Finally, the weights obtained from these two methods were combined and the final weight was obtained. These weights were used in the Interval TOPSIS method. Then the companies were ranked according to the coefficient of closeness obtained by the distance tops method, and the top company was selected.