Logistics implementations and the measurement of logistics performance in a glass company

Logistics management is a process that plans the distribution of goods and services from production to consumption. Originating from military applications, this concept now plays a critical role in commercial activities. Modern logistics encompasses inventory management, transportation, warehousing, and distribution, aiming to reduce costs for economic development and competitive advantage. Each mode of transportation—road, sea, air, and rail—offers distinct advantages in terms of cost, speed, and reliability. Logistics performance is measured by delivery speed, cost efficiency, reliability, and flexibility. This study evaluates the logistics performance of suppliers by analyzing the 2023 maritime export data of a glass company based in Balıkesir. The objective is to improve logistics processes and achieve cost efficiency. Using the grey relational analysis method, performance criteria such as vessel arrival delays, final transit time, and additional costs in the destination country are assessed. Data is sourced from the company's database and suppliers' websites. A total of 263 DAP shipments to Germany and Italy have been evaluated. In conclusion, this study provides valuable insights to optimize the logistics processes of the glass company, thereby enhancing customer satisfaction. Keywords: Logistics, Incoterms, Gray Relational Analysis, Supplier Performance