Language of Instruction
English
Yearly Fees
198,500 to 545,000 THB/year
CIST is situated on a riverside campus in the Pinklao area and evolved from the long-running Thewphaingarm School, giving it institutional roots that predate its current international identity, a transition somewhat similar to how VERSO became Wycombe Abbey, though CIST's evolution happened gradually rather than as a sudden rebrand.
The school is authorized for the IB Primary Years and Middle Years Programmes, and works toward students earning an Ontario Secondary School Diploma, a specifically Canadian secondary credential that is a genuinely different pathway from the British, American, or standard IB Diploma routes most Bangkok schools offer.
That combination of IB primary and middle years authorization with an eventual Ontario Diploma outcome is a distinctive structural choice, giving CIST a genuine niche among Bangkok's Canadian curriculum options alongside British Columbia International School, though the two follow different Canadian provincial systems entirely.
Families specifically interested in a Canadian secondary credential via the Ontario system, combined with IB-style primary and middle years teaching, are the natural audience for CIST.