Countries around the South China Sea are working on new ways to handle their competing claims through diplomacy and regulations in 2026. The High Seas Treaty, effective from January 17, protects unique marine biodiversity and ecosystems in areas beyond any one country's control. This framework could change the 'rules of the game' in the ongoing South China Sea dispute. The Philippines, as the 2026 chair of ASEAN, aims to finalize a code of conduct covering the contested waters within its term. Manila has highlighted this push to bring peace and order to the region. These efforts show a mix of new strategic and diplomatic tools shaping the future of these vital waters.