The SET, mai, TFEX, LiVEx and TDX will trade as normal on Monday 28 September 2569 (2026). TSD Counter Services also operates on normal hours. The SET is coordinating with the SEC and member brokers to keep systems and investor services running, and is monitoring flooding. Only relevant if your business holds listed shares or has trades or settlements scheduled that day; otherwise no action needed. Investors can call SET Contact Center on 0 2009 9999.