SEATST 2025 was used for the IOI 2025 selections of Singapore, Indonesia, Malaysia and Pakistan. The SEATST 2025 problems are available here as a reference: Day 1, Day 2.
All ASEAN member states are welcomed to participate in SEATST 2026 free of charge. Non-ASEAN member states can also use our TST, but will have to pay a small participation fee of 20 SGD per contestant.
For any enquiries, please contact us at sc.seatst@gmail.com.