Vietnam is the 13th largest source of tuna in the UK market, but it is expected to increase its tuna exports to the UK due to the effects of El Niño on shipping routes. The prolonged El Niño phenomenon has decreased rainfall in the Panama Canal, forcing shipping companies to choose alternative routes, creating an opportunity for Asian countries, including Vietnam, to increase tuna exports to European countries. Despite a decrease in overall tuna exports, Vietnam's tuna exports to the UK have seen positive growth in the first 7 months of 2023, thanks to the Vietnam - UK Trade Agreement (UKVFTA) and the UK's accession to the Comprehensive and Progressive Agreement for Trans-Pacific Partnership (CPTPP).