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Prem International School

Thailand, Chiang Mai

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· Reviewed by · B2C Marketing Manager

Independently researched by doris.
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The school at a glance
Instructs in English
Fees THB 399,000 - 780,000
Ages 3 - 19 years
Pupil numbers 500
Type Co-educational (boarding)
Opened 2001
Bus Service Yes
Availability Not shared by this school
Academic offering
Curriculum IB (PYP), IB (MYP), IB (DP), IBCP (International Baccalaureate Career-related Programme), Reggio Emilia Approach
Taught languages French, Korean, Mandarin, Spanish, Thai
Typical class size 25
Strengths Sport, Outdoor Education, Service and Sustainability
Clubs Academic and Intellectual, Arts and Creative, Community and Service, Leadership and Professional, Lifestyle and Wellbeing
Stages Early Years, Primary School, Secondary School, Middle School
Introduction

Prem Tinsulanonda International School was founded as part of the Traidhos Three-Generation Community for Learning by Mom Luang Tridhosyuth Devakul, and named in honor of General Prem Tinsulanonda. Located on a 100-acre campus in Mae Rim, northern Chiang Mai, it serves both day and boarding students aged 3 to 19 years. The school follows the full International Baccalaureate (IB) curriculum, offering PYP in early years through Grade 5, MYP for Grades 6–10, the IB Diploma Programme (DP), and the IB Career-related Programme (IBCP) for Grades 11–12. Facilities of the school include boarding apartments, six science labs, multiple sports fields, an Olympic-size pool, indoor sports hall, tennis, cricket and golf facilities, forest and farm-based learning areas, art and drama studios, an amphitheatre, auditorium, cookery school, medical centre, and design workshop.

ptis.ac.th

234 Moo 3 Huay Sai, Mae Rim, Chiang Mai 50180, Thailand

Vibes and Culture
The school has not added this information
The Essentials

Prem International School has 500 pupils, typical class sizes of 25, instruction in English.

Location
Prem International School is located in Mae Rim, about 25 km north of Chiang Mai, Thailand, on a spacious 100-acre campus nestled in a rural setting. The campus is accessible by car and bus and provides a tranquil, nature-filled environment with forests, ponds, and meadows that serve as part of the educational experience.

Stages
The school serves students aged 3 to 19, covering Early Years (EY1–3), Primary (Grades 1–5), Middle Years (Grades 6–10), and Senior School programs, including the IB Diploma and Career-related Programmes in Grades 11–12.

Type
Prem is a co-educational international school offering both day and boarding options. Boarding is available for Grades 3–12, with full (7-day) and weekly (5-day) arrangements in modern dormitories, apartments, and short-stay residences.

Additional learning support
Students in Grades 3–8 who require extra English support attend the Intensive English Programme (IEP), which focuses on building language skills in literacy, math, science, and humanities, alongside creative and outdoor learning activities.

Country affiliation
Prem has no affiliation with any country.

Religious affiliation
The school has no religious affiliation.

School day structure
Specific start/end times or break schedules aren’t listed publicly on the school's website.

Bus service
A school transport service is available for day students, with fees ranging from THB 16,125–19,500 per term based on home-to-school distance.
Diving Deeper
The school has not added this information
Fees

Annual tuition at Prem International School ranges from THB 399,000 to THB 780,000 for 2026/27.

Application Fee: THB 6,000 (non-refundable)
Security Deposit: THB 50,000 (refundable)
Foundation Fee: THB 130,000 (non-refundable)

Annual Tuition Fees
Early Years 1–3: THB 399,000
Grade 1: THB 428,000
Grades 2–3: THB 470,000
Grades 4–5: THB 580,000
Grades 6–7: THB 700,000
Grade 8: THB 740,000
Grades 9–12: THB 780,000
Intensive English Programme (IEP): THB 668,000

Annual Boarding Fees
Weekly (5 days): THB 336,000
Full (7 days): THB 458,000
Note: fees covers accommodation, meals, academic support, and weekend activities

Additional THB 20,000 Contingency Account required per boarding student

Sibling Discounts
2nd child: 10%
3rd child: 15%
4th child: 20%
5th child and beyond: 50%
Note: applies to tuition and boarding fees

Additional Fees
Lunch & Snack Fee (day students):
EY1–Grade 5: THB 9,650 per term
Grades 6–12: THB 11,500 per term

Uniform: Required for all except Grade 12

Transport Fee (day students): THB 16,450–19,900 per term, depending on distance (refundable only if unused for full term)

Academic Costs
IB Examination Fee (Grade 12): Varies based on course selection

Additional IB Course Fees: THB 15,000 per subject (e.g. Art, Biology, Geography)

Textbooks: English A1 and A2 texts required for IB students

SAT Exam Fees: Charged as per official SAT rates

Transcripts: 6 included with postage; extras THB 300 each

Courier/Postage (Grades 11/12): THB 1,200–1,500 per university application

EAL Support Fee: THB 21,000 (if required based on assessment)

Refund Policy
With one-term written notice: 100% refund
Withdrawal within first 2 weeks of term: 75% refund
After two weeks: No refund

If full-year fee paid in advance:
Up to end of Term 1: 75% refund
Up to end of Term 2: 50%
Up to end of Term 3: 25%

Boarding refund with one-term notice: 80%
Without notice: 20% charge applies

Deferral / Retainer: THB 20,000 per term (for students taking a break/gap or delaying start)

Payment Options
Cash, credit card, Cheque/bank draft, WeChat & Alipay.

Late payment penalty: 1.25% monthly; records may be withheld after 30+ days
Academics

Prem International School teaches IB (PYP), IB (MYP), IB (DP), IBCP (International Baccalaureate Career-related Programme), Reggio Emilia Approach for students aged 3 to 19.

Curriculum
Prem International School follows the full IB continuum from Early Years to Grade 12. The Early Years programme (ages 3–5) is play-based and influenced by the Reggio Emilia approach, with a strong emphasis on outdoor and experiential learning. Grades 1–5 follow the IB Primary Years Programme (PYP), focusing on transdisciplinary inquiry and foundational literacy and numeracy. Grades 6–10 follow the IB Middle Years Programme (MYP), which includes interdisciplinary learning, service, and personal projects. In Grades 11–12, students can choose between the IB Diploma Programme (DP), the IB Career-related Programme (CP), or individual IB courses combined with a Prem High School Diploma. The Intensive English Programme (IEP) supports Grades 3–8 students developing academic English, alongside core subjects and creative learning.

Academic calendar
Wellbeing
The school has not added this information
Parent Experience
The school has not added this information
Facilities
The school has not added this information
Extra-Curricular Activities
The school has not added this information
Languages
The school has not added this information
Reputation
The school has not added this information
Admissions

Admissions
1. Book a campus tour or open house (optional but encouraged).
Once your match is received, the Admissions team may offer to schedule a visit to the campus. You can tour the learning spaces, ask questions in person, and get a feel for the school day—either in-person or virtually.

2. Submit the online application and required documents.
You'll need to complete the Online Application Form and upload relevant documents such as school transcripts and reports. A one-time, non-refundable application fee must also be paid at this stage to proceed.

3. Participate in an interview and academic assessment.
Once the application is complete, the school will schedule an interview for both the parent(s) and the student. The student will also complete academic assessments, which may include a tailored English language evaluation to ensure the right level of support from the beginning.

4. Receive the admissions decision.
After interviews and assessments are completed, the school typically communicates a decision within 3–5 business days. The offer may be conditional based on year group or required support services.

5. Confirm your place and pay the required fees.
If a place is offered, you’ll need to accept it and make the payments listed in your invoice by the specified deadline.

6. Receive visa support (if applicable).
Once initial fees are received, the school will issue any required documents to support a student visa application (if needed). The admissions team will guide families through this step and help with preparations for starting at Prem.

Scholarships
General Guidelines
Scholarships are open to new and returning students.
Applications must be submitted by April 15 each year.
Award results are announced by April 30.
All applicants must first complete the general school admissions process.
A separate scholarship application, including supporting documentation, is required.

Academic Scholarship
Awarded to students who demonstrate strong academic achievement, consistent effort, and a record of engagement in school life and service.

Athletic Scholarship
Given to students with notable accomplishments and commitment in competitive sports. Applicants are expected to be active contributors to the school’s sports teams.

Creative Arts Scholarship
Designed for students with significant talent in music, visual arts, performing arts, or digital media. A portfolio or audition may be required depending on the discipline.

International Diversity Scholarship
Supports students from diverse national backgrounds who show academic strength and leadership. Intended to encourage broad representation across the school’s community.

IBCP Sustainability Scholarship
Available to students entering the IB Career-Related Programme with a focus on Business and Sustainability. Applicants must submit a digital portfolio and show interest in global sustainability issues.

Prem Ambassadors Award (For existing students only)
Offered to students already enrolled in Grades 8–11 with at least one year at Prem. Awardees are expected to represent the school at events and maintain strong academic and extracurricular involvement. The award is valid for one academic year and must be reapplied for annually.

Waitlist
There is no mention of a waitlist on the school's website.
School Events
The school has not added events
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