LNG terminals play an important role in energy supply, aiming to reduce costs and increase flexibility in gas distribution. Transshipment operations at LNG (liquefied natural gas) terminals enable the transport of liquefied natural gas (LNG) between various regions of the world. These operations involve complex processes of transshipment, storage, and re-liquefaction, requiring a high level of efficiency and safety during execution. Technological advancements and automation have a significant impact on optimizing transshipment operations by reducing transfer time and minimizing potential risks associated with handling natural gas. The environmental aspect is also crucial, considering the need to reduce greenhouse gas emissions and increase energy efficiency. Coordination between various stakeholders, including terminal operators and shippers, is key to ensuring that the entire transshipment operation is smooth and safe. The purpose of this thessis is to analyze transshipment operations at LNG terminals. The goal of the thessis is to provide a comprehensive overview and understanding of the key factors affecting the efficiency, safety, and sustainability of transshipment operations, with a focus on technical characteristics and technological processes, legal requirements, safety and environmental protection measures, and economic performance indicators of LNG terminals.