Thai-Chinese International School.

What has changed here recently

Samut Prakan is the one province in this guide where the school field is genuinely unstable — a school closed in July 2026, another changed its leaving qualification, a third opened a secondary campus. This section records what a directory listing is most likely to be wrong about.

TCIS is mid-transition on qualifications. It is pursuing IB Diploma authorisation and has moved far enough into the process to publish an IBDP policy manual and to name its 2025–26 course catalogue after the programme — but it remains a candidate school, and candidate status is explicitly not a guarantee of authorisation. A family enrolling now on the expectation of an IB Diploma is betting on a process, not choosing a programme.

Where this school stops

Grade 12. A full through-school on one campus.

What a leaver actually holds

The curriculum label and the leaving qualification are different things, and in this province they diverge more than anywhere else covered. For a family that may move country again, this line is the decision.

US high school diploma, with Advanced Placement. The IB Diploma is NOT available — see the flags.

Where the campus actually is

101/177 Moo 7, Soi Mooban Bangpleenives, Prasertsin Road, Bang Phli Yai, Bang Phli, Samut Prakan 10540

In Bang Phli Yai, off Prasertsin Road, inland from the Bangna-Trad school cluster. No rail at the campus.

Area guides families use for this school run: Bang Na (Samut Prakan side) · Samrong

The curriculum pathway, stage by stage

• Pre-K2 through elementary — an American programme with daily compulsory Mandarin alongside English and Thai.
• Middle school — continuing trilingual instruction.
• Grades 9 to 12 — American high school leading to a US high school diploma, with Advanced Placement courses. Roughly 270 students sit in these four grades by the school's own count.

Accreditations & authorisations

Worth separating: an examination-board authorisation (Cambridge, IB, College Board) means a school may enter pupils for those exams. A whole-school accreditation (WASC, CIS, NEASC, Cognia, ISQM) assesses the school itself. A membership is neither. Both matter; they are not the same claim — and in Samut Prakan three of the ten schools publish no accrediting body at all.

• ACCREDITED — Western Association of Schools and Colleges (WASC), first accredited in 2002 and re-accredited in April 2014 and June 2021.
• LICENSED — Thai Private Education Commission.
• RECOGNISED — Ministry of Education, Republic of China (Taiwan), a genuinely unusual recognition among Thai international schools and a meaningful one for families whose children may continue their education in Taiwan.
• AUTHORISED — College Board, for Advanced Placement.
• IB Diploma — CANDIDATE ONLY. Not authorised. See flags.

Religious character

Explicitly non-sectarian, stated by the school on its own high school page. That is a positive declaration rather than an absence, which makes TCIS one of the few schools in the province where the question is actually answered.

Boarding

None published.

Who it suits

Families who want serious, daily Mandarin inside an American diploma pathway rather than as an add-on, and particularly families with a connection to Taiwan or an expectation that a child may continue there. The Taiwanese Ministry of Education recognition is not something the other nine schools in the province offer.

What we could not verify — and where sources disagree

We publish these openly rather than smoothing them over. A school guide that hides its uncertainty is not much use to a family making a decision this big.

• The IB Diploma is candidate status only. The school's own high school page states verbatim that it 'is a candidate school for the Diploma Programme', is 'pursuing authorization as an IB World School', and that 'candidate status gives no guarantee that authorization will be granted'. Meanwhile the site footer displays an IB Diploma Programme logo, the school publishes an IBDP policy manual, and its 2025–26 course catalogue file is named after the IBDP. Do not describe TCIS as an IB World School, and do not enrol on the assumption the Diploma will be available in a given year.
• Whole-school roll size is not published; the ~270 figure covers Grades 9 to 12 only.
• Founding year is not published on the school's own site. The 2002 WASC accreditation is the earliest date the school dates itself by.

Ask every Samut Prakan school this

• Is this school still operating, under this name, this year? Samut Prakan is the one province in this guide where a school on families' shortlists closed — VERSO ceased operations on 31 July 2026 — and directories still list it as enrolling. Check the school's own homepage for a closure or rebranding notice before you do anything else.
• What qualification does a Grade 12 or Year 13 leaver actually hold? Not the curriculum label — the qualification. Raffles moved from Advanced Placement to the IB Diploma without the directories noticing, TCIS displays an IB logo while holding only candidate status, and D-PREP names no leaving qualification at all.
• Where does this school stop? SISB Suvarnabhumi ends at Primary 6 and awards nothing, despite being marketed across the Bang Kaeo property corridor as an international school.
• Is the school ACCREDITED, or AUTHORISED, or a MEMBER? Ask for the body, the status word and the expiry date. Three of the ten schools here name no accrediting body at all, one is disputed between WASC and NEASC, and one is somewhere between CIS membership and CIS accreditation.
• If boarding matters, is it a boarding house on this campus? SISB's boarding is real but sits at a different campus in Bangkok, and Concordian's residency programme cannot be confirmed as currently operating. ASB Green Valley and Wycombe Abbey are the ones publishing houses on site.
• Which province is the campus actually in, and which campus am I contacting? Almost every school here markets itself as Bangkok. Several groups run a Bangkok campus and a Samut Prakan campus under one brand with different provision — ASB, SISB, TSI and D-PREP all do.
• How long is the drive at 7am, from the address you are actually considering? The school belt spans kilometre 7 to kilometre 15 on Bangna-Trad plus a separate Samrong cluster. Those are not interchangeable at rush hour.
• Does the school publish a bus route that reaches you — or only a catchment claim? Only D-PREP publishes actual routes. Everyone else has a bus with no published coverage, which cannot be planned around.