BTS Group Holdings Pcl will replace the single-trip magnetic cards with smart cards or Thin Cards to accommodate the expansion of skytrain services with the opening of the Green Line between Samrong and Samut Prakan tentatively scheduled this yearend, followed by the opening of the Green Line between Mor Chit and Khu Khot, the Pink Line between Kaerai and Min Buri and Yellow Line between Lat Phrao and Samrong.
BTS Group managing director Surapong Laoha-anya said Friday that the company would also replace the existing ticket selling machines with about 200 touch-screen ticket ticket selling machines and to add another 50 automatic ticket selling booths which accept banknotes at all BTS train stations.

This process will start this month starting at six stations, namely Siam, Chong Nonsee, Krung Thonburi, Wongwien Yai, Talad Plu, Bang Wa, Udomsuk and Baring and, later on, will cover all train stations in six months.
During the transition period from the change of magnetic cards to the Thin Cards, Mr Surapong said he would like to apologize to commuters as the use of single-trip magnetic cards or one-day magnetic cards may encounter inconveniences at the entry and exit points, but the company would try to ensure the least inconveniences.