<![CDATA[Vannamei shrimp is one of Indonesia's leading export commodities that relies heavily on the efficiency of cold chain logistics to maintain product quality during shipping. Purpose: This study aims to analyze the factors causing distribution delays in the vannamei shrimp supply chain at a seafood exporting company in Makassar, South Sulawesi, and evaluate their impact on product quality, return rates, and export prices. Methods: The method used is the System Thinking and System Dynamics approach, by building a dynamic system model using Vensim software. Data were obtained through literature studies, interviews, field observations, and historical distribution data for 2023. Results: The results show that an average distribution delay of 12–18 hours causes an increase in temperature during transportation by 2–3°C, resulting in a decrease in shrimp quality and an increase in return rates of up to 7% of total monthly exports. Through simulations of improvement scenarios, the model shows that optimizing the criteria for export-worthy shrimp and increasing the efficiency of distribution rates can reduce the number of damaged shrimp and increase export volume. Model validation tests with a MAPE value of 5.16% indicate a good match between the simulation results and actual conditions in the field. Implications: This research is expected to be a reference for exporting companies in designing strategies to improve cold chain logistics to increase the competitiveness of Indonesian shrimp products in the international market.]]>
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