Effect of GSCM on Environmental Collaboration and Sustainability Performance Using Factors Analysis and Decision Making Techniques

The main purpose of this study is to investigate the effect of green supply chain management operations (green procurement, green production, green distribution, green logistics (on environmental cooperation and sustainable performance) economic, social, and environmental (in the country's technology petrochemical company. Literature and research background, a conceptual model of the relationship between these structures was presented, and then the path analysis approach was used to examine the relationship between them. The statistical population of the study consists of 55 experts and specialists of the company due to limited size the population was used as a sample of all members. The research method is applied in terms of purpose and descriptive in terms of data collection method. The output of the Path Analysis showed that: "Green supply chain management operations have a positive effect on" performance "Sustainability" and "environmental cooperation" as well as "environmental cooperation has a positive effect on the performance of sustainability in Fanavaran Petrochemical Company". The output of SWARA technique indicates that the "environmental criterion" with the most weight has been identified as the most important performance measure of sustainability in evaluating suppliers. "Economic criteria" and "social criteria" were also ranked next in importance. Finally, using VIKOR technique, seven suppliers of the company's materials were evaluated and the suppliers were ranked in terms of sustainability performance. The findings of this study are especially useful for manufacturing companies in developing environmental cooperation with their suppliers in order to achieve sustainable performance.