Core tip: During the 41st week of 2025 (October 6th to 12th), global prices for South American white shrimp at the pond head underwent changes once again. The issue of Ecuador canceling diesel subsidies further impacted the upstream supply chain, leading to a rise in costs; U.S. authorities require Indonesian shrimp to submit random inspection certificates, effective by the end of October; although Indian shrimp prices remain stable, the outlook is unclear due to tariff impacts.