Özet:

Sustainability as a concept; includes economic, social and environmental approaches in relation to each other and also supply chain components. In this context, the right suppliers were selected, which is the most important component for the integration of a sustainable supply chain process. The right suppliers that focus on green practices are important for sustainability. At this point, multi-criteria decision making techniques, which provide the most important decision support opportunity, also provide rationality and convenience for decision makers in the selection of green suppliers. In this context, firstly a literature search was conducted in the study and the criteria used in the selection of green suppliers, which could be discussed in three sub-headings, were determined. At this stage; Resource Utilization and Green Competence (C1-Green Storage, C2-Green Recycling, C3-Green Production Capacity, C4-Green Packaging, C5-Resource Consumption, C6-Pollution Control), Economic Criteria (C7-Logistics Costs, C8-Product Costs, C9-Delivery Time) and Quality (C10-Error Rate, C11-Warranty and Rights Policies, C12-Environmental Competencies and Documents). Then, the determined criteria were weighted and finally, green suppliers were selected using COPRAS and EDAS, which are the multi-criteria decision making techniques that have made significant improvements in recent years. As a result, the most suitable supplier was selected among the determined 7 alternative suppliers. Although there is a difference in the ranking made according to the selections by using both methods, the supplier A2 took the first places and came to the fore.The reason for choosing two different techniques in the study is that the techniques give similar results with each other and thus the strengths of the techniques are determined. In addition, it is to contribute to the correctness of a decision to be made at the strategic level at the first time, especially by preventing possible mistakes.

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