Journal of Industrial Engineering and Management Studies

Abstract The wood and paper industry is considered one of the key and strategic industries in the country's economy. Mazandaran, as one of the important provinces in the production and supply of raw materials for this industry, plays a significant role in meeting domestic and export needs. However, this industry faces numerous challenges, including the sustainable supply of resources, effective cost management, maintaining product quality, and compliance with environmental regulations. In this regard, supply chain optimization is proposed as an effective solution to increase efficiency and reduce costs. This research has examined the optimization of the open-loop supply chain in the Mazandaran wood and paper industry using an integrated multi-objective mathematical model. Given the specific challenges of this industry, including the supply of sustainable raw materials and the need to reduce costs, this model has been able to simultaneously pay attention to various criteria, including price, environmental sustainability, and the importance of suppliers. The results of this research show that by using advanced optimization methods, appropriate choices can be made in terms of vehicles and transport routes, and the volume of products moved between chain components and supply chain performance can be improved. In addition, this model can serve as an effective decision-making tool for managers of the wood and paper industry in Mazandaran and contribute to the sustainable development of this industry.