Five securities are added to the list: Bankthai Plc. (BT) from the Banking Sector, Cal-Comp Electronics (Thailand) Plc. (CCET) from the Electronic Components Sector, Major Cineplex Group Plc. (MAJOR) from the Entertainment and Recreation Sector , TISCO Finance Plc. (TISCO) from the Finance and Securities Sector and Italian-Thai Development Plc. (ITD) from the Property Development Sector These five securities replace National Petrochemical Plc. (NPC) from the Chemicals and Plastics Sector, BIG C Supercenter Plc. (BIGC) and Siam Makro Plc. (MAKRO) from the Commerce Sector, AEON Thana Sinsap (Thailand) Plc. (AEONTS) from the Finance and Securities Sector and Saha-Union Plc. (SUC) from the Textiles, Clothing and Footwear Sector.
In addition, these five securities will also be keep in reserve as possible substitutes: Asian Property Development Plc. (AP) from the Property Development Sector, ITV Plc. (ITV) from the Entertainment and Recreation Sector, Sahaviriya Steel Industries Plc. (SSI) from the Building and Furnishing Materials Sector, The Aromatics (Thailand) Plc. (ATC) from the Chemicals and Plastics Sector and The Siam Industrial Credit Plc. (SICCO) from the Finance and Securities Sector. This will be in case any of the originally selected fifty securities are subsequently removed from the calculation of SET50 Index.