The Twenty-fifth Session of the Intergovernmental Coordination Group for the Pacific Ocean Tsunami Warning and Mitigation System (ICG/PTWS-XXV) took place in Vladivostok, Russian Federation, 9-11 September 2013. The meeting was very well attended, with over 60 participants from 16 countries, one organisation (World Meteorological Organisation) and one business company (SAIC). The Group requested the Pacific Tsunami Warning Center (PTWC) to replace the current PTWC tsunami products for PTWS as from 1 October 2014 with the endorsed Enhanced Tsunami Products. The PTWC Enhanced Tsunami Products for the PTWS will no longer advise levels of alert to Member States, but instead provide more detailed forecast levels of tsunami threat for use by the National Tsunami Warning Centers (NTWCs). The Group also accepted China's proposal to build a South China Sea Tsunami Advisory Centre (SCSTAC) to service the approved sub-regional South China Sea Tsunami Warning and Mitigation System within the framework of the ICG/PTWS. China's National Marine Environmental Forecasting Centre (NMFEC) will be responsible for building the centre.