Interregional interaction of logistics systems in the transportation of snail farming products during the spatial transformation of the circular economy

The article examines the organizational and economic foundations of interregional interaction between logistics systems involved in transporting snail farming products amid the spatial transformation of the circular economy. It focuses on coordinating production, product preparation, transportation, processing, and distribution across geographically dispersed enterprises. The study identifies the economic conditions influencing cooperation among snail farmers, transport operators, consolidation centers, processors, and buyers. The study examines three forms of interregional cooperation: direct deliveries from producers to buyers, consolidation of shipments from several farms, and contractual networks connecting enterprises across regions. The study considers their economic advantages and limitations in relation to shipment volumes, transportation costs, coordination requirements, and potential product losses. The study proposes an organizational and economic approach to assess alternative transportation arrangements based on the total cost per kilogram of products the recipient actually accepts. The proposed calculation considers transportation, packaging, storage, monitoring, and product losses, together with documented economic benefits from reusable packaging. The study also introduces an indicator measuring the proportion of reusable packaging returned. The study presents a conceptual framework integrating forward product flows, reverse packaging flows, and information exchange between participants. The study systematizes economic instruments for coordinating procurement, shipment preparation, transportation schedules, and product acceptance. It focuses on contractually allocating responsibilities, product traceability, and compliance with sanitary and veterinary requirements. The findings indicate that shipment consolidation does not necessarily reduce overall costs, as potential economies of scale may be offset by additional handling, storage, and coordination expenses. The economic feasibility of interregional cooperation must therefore be assessed according to specific production conditions, shipment characteristics, and market requirements. The proposed approach provides a methodological basis for comparing transportation alternatives, improving resource utilization, and supporting economically justified circular practices in the snail farming sector. Keywords: circular economy, packaging, logistics systems, interregional cooperation, snails, transportation costs, agricultural products, heliciculture, industry, waste, production, transformation.