At its 26th session, the Intergovernmental Coordination Group for the Pacific Tsunami Warning and Mitigation System (ICG/PTWS-XXVI, Honolulu, United States of America, 22–24 April 2015) approved the continuity of the South China Sea Sub-Regional Working Group Task Team on Establishment of a South China Sea Tsunami Advisory Center - (SCSTAC), with membership composed by representatives of Member States of the ICG/PTWS Working Group for the South China Sea Region WG-SCS (Brunei Darussalam, China, Cambodia, Indonesia, Malaysia, the Philippines, Singapore, Thailand and Vietnam) and invited experts and representatives of PTWC and NWPTAC. At the First Meeting of the ICG/PTWS Task Team on Establishment of the South China Sea Tsunami Advisory Centre (SCSTAC), held the 7 April 2014 in Hong Kong, China, the operational requirements and available observational resources for the SCSTAC were identified, and the performance indicators, as well as the draft plan on operational products were discussed. Through IOC Circular Letter No 2624 dated 1st of April 2016, final comments from Member States were requested on the document “Tsunami Advisory Products for the South China Sea Regional Tsunami Warning and Mitigation System”, prepared by the Task Team on Establishment of the SCSTAC. In the same Circular Letter, we announced that at the invitation of the Government of China, the Task Team on SCSTAC, was scheduled to hold its second meeting on October 24–26, 2016, in Beijing, China. The Terms of Reference of TT SCSTAC are: 1. Develop capability guidelines and performance indicators for the SCSTAC; 2. Explore ways for facilitating the sharing and exchange of data and relevant information necessary for the establishment of the SCSTAC; 3. Consult with National Tsunami Warning Focal Points of the SCS region to determine appropriate requirements for Tsunami service/products; 4. Develop the SOP and the contents of tsunami advisory products for the SCSTAC; 5. Identify potential resource requirements for the establishment of the SCSTAC; 6. Keep contact with PTWC and NWPTAC (JMA) for technical guidance and assistance.