Your next action
Find the POSN centre serving your area and ask for its current mathematics camp entrance notice. Later TMO participation follows the programme’s selection process.
- Current position
- Entry route identified; current application window not confirmed.
- Who takes action
- Student/parent working with the relevant regional POSN centre.
- Date / deadline
- The entrance deadline depends on the relevant centre; a current local deadline is not verified.
- Fee
- Current entry fee not verified. Ask before making payment.
- Eligibility
- Regional camp entrance conditions and later TMO eligibility are different; check both.
Read the official entry information · Official enquiry route
Entry information reviewed 23 September 2026. An unknown field is not an open invitation. Confirm it with the organiser before applying.
Organisers
POSN Foundation and the Institute for the Promotion of Teaching Science and Technology (IPST).
Route
Appropriate POSN regional-centre selection → Camps 1 and 2 → Thailand Mathematical Olympiad (TMO) → IPST training and final international selection.
How to enter
Locate the relevant POSN centre and follow its mathematics admission notice. Centre-specific grade, residency and registration conditions need their own checks. POSN describes the shared camp/national/IPST structure for its five subjects, including mathematics; the TMO regulations confirm the mathematical competition. POSN camp structure, TMO regulations
For cross-border schooling, home education or national-team eligibility, read the shared eligibility guide and obtain the national organiser’s ruling.
Past papers and solutions
The POSN mathematics archive lists national Olympiad papers using Thai Buddhist Era years. For modern contest dates, subtract 543 to obtain the Gregorian year: 2567 corresponds to 2024. Regional camp admission papers and TMO papers are different stages.
Previous results
POSN national competition notices covers the domestic programme. For international appearances, medals and contestant records, use Thailand in the official IMO archive. A national-round award and an IMO medal describe different achievements.
Find papers from other countries · Understand result tables and medal cut-offs
Suggest a correction or an updated official notice
If your school does not take part
Ask POSN which centre serves your school or home address and whether it accepts an application without school nomination. Confirm the exam location and required school documents.
Use the short organiser-enquiry checklist · Find practice for this country