Admission Rounds

RoundApplication PeriodNumber of Available Seats
Early Admission 2023November 25 - December 22, 202250
Admission 2023February 21 - March 28, 202310
International Admission 2023 (Round I)*December 21, 2022 - February 15, 20236
International Admission 2023 (Round II)* (If any)March 15, 2023 - May 15, 2023
Remark: *Applicants do not hold Thai citizenship.


Official Admission Announcement: Early Admission 2023 (Thai Language)

Qualification of Applicants

Applicant must have completed or presently be enrolled in their final year of high school, or its equivalent levels according to the condition set by Chulalongkorn University.

For the applicants who graduated from international schools in Thailand, which are not certified by the Ministry of Education, or from overseas (included GED). It is required to get the certification from High School Certificate Equivalency System by Chulalongkorn University Academic Testing Center (CUATC) as follow:

(1) Actual Equivalence Certificate/ Provisional Equivalence Certificate

(2) GPA Equivalency

Contact: Chulalongkorn University Academic Testing Center

Tel (+66) 02-218-3719

1.1 Applicants must submit all of the following 3 required documents that all results must meet the requirements.

1.1.1 Applicants must have graduated or currently be enrolled in their final year of high school (Mattayom 6 in Thai system), or its equivalent levels according to the criteria set by Chulalongkorn University, and in high school level have taken course or proficiency test in Science subject.

1.1.2 Applicants must submit one of the following English proficiency test scores:

TOEFL (Paper-based)at least550or
TOEFL (Internet-based)at least79or
IELTSat least6.0or
SAT (Evident-based Reading and Writing)at least450or
CU-AAT (Chulalongkorn University Academic Aptitude Test) (Verbal Section)at least400or
CU-TEP (Chulalongkorn University Test of English Proficiency)at least80or

1.1.3 Applicants must submit one of the following Mathematics test scores:

SAT (Math)at least500or
SAT II (Math Level 2)at least500or
CU-AAT (Chulalongkorn University Academic Aptitude Test) (Math Section)at least450or
ACT (Math)at least22or
IB Diploma (HL Math)at least5or
A-Level (Math)at leastB

The official score report of the tests in 1.1.2 and 1.1.3 is valid only if the tests were taken no more than two years prior to the application deadline.

1.2 Have good behavior and be willing to comply with the rules and codes of Chulalongkorn University.

If there is evidence shown later that the application does not meet the requirements or contains fraudulent information, involves fake documents, the application will be rejected, even though an offer of admission has already been made. Moreover, the applicant may be prosecuted according to law.

Selection Criteria

Selection criteria for admission are:

English Proficiency Test Score30%
Mathematics Proficiency Test Score30%
Interview Score*40%

*The selection results of the BBTech Speech Contest 2022 Finalists and BBTech Speech Contest 2021 Finalists will be part of the interview score evaluation.

Number of Available Seats

The Bachelor of Science in Biotechnology (International Program) is authorized to admit up to 50 (fiffy) qualified applicants.

Application Calendar

Admission ProcessRound I
(Early Admission 2023)
Round II
(Admission 2023)
TCAS System RegistrationTo be announced
Application PeriodNovember 25 – December 22, 2022February 21 – March 28, 2023
Announcement of the Candidates for InterviewJanuary 10, 2023April 4, 2023
Interview DateJanuary 13, 2023April 10, 2023
Announcement of Qualified Applicants for Admission ConfirmationJanuary 20, 2023April 21, 2023
Admission ConfirmationJanuary 23, 2023
before 12.00 (UTC+7)
April 24, 2023
before 12.00 (UTC+7)
Announcement of Additional Qualified Applicants for Admission Confirmation (If any)January 24, 2023April 25, 2023
Admission Confirmation for Additional Qualified Applicants (If any)January 25, 2023
before 12.00 (UTC+7)
April 26, 2023
before 12.00 (UTC+7)
Announcement of Accepted Applicants (before TCAS confirmation)February 3, 2023May 3, 2023
TCAS Confirmation at 7–8, 2023May 4–5, 2023
Announcement of Final Selected Applicants (after TCAS confirmation)February 11, 2023May 12, 2023
Pre-registration Fee PaymentFebruary 14, 2023May 15, 2023
Enrollment ConfirmationFebruary 14, 2023
before 12.00 (UTC+7)
May 15, 2023
before 12.00 (UTC+7)
Announcement of Enrolled ApplicantsFebruary 21, 2023May 22, 2023

**before enrollment confirmation

Application Process and Required Documents

All Applicants must send the required documents via online application form. In-person and registered mail submissions have been canceled.

Online Application Form (Nov 25, 2022 – Dec 22, 2022)


All applicants have to register in the Thai Central Admission System (TCAS). visit

Applicants must complete and submit the application form with the following documents:

  1. Application form (online)
  2. Two recent one-inch (1”) photographs
  3. A copy/copies of academic transcript(s) and must be signed “Certified True Copy”
  4. Documents of required test scores according to English Proficiency test scores and Mathematics test scores. (a copy of document must be signed “Certified True Copy”) (in case of SAT scores, print a PDF of your score report from your account and must be signed “Certified True Copy”)
  5. A copy of identification card for Thai students or passport for foreign students and must be signed “Certified True Copy”
  6. A letter of certification of student status from the applicant’s school (no need to required for graduate)
  7. A copy of application fee payment slip and must be signed “Certified True Copy”

For supplementary or additional documents, please send email to (email topic: Admission 2022 MyFirstName MyLastName).

Any copy of document must be certified by applicant writing “Certified True Copy”.


Certified True Copy


Date of Signature

The applicants must check that they meet requirements according to the requirements announced. If there is any mistake from the applicants or the applicant packet does not meet the requirements, the applicants will be disqualified. Incomplete application package will not be considered.

Applicants must pay the application fee in cash directly at any branch of the Siam Commercial Bank. Payment must be accompanied by the Payment Form and made within the payment period specified.

Application Payment Form

Please note that, application fee is non-refundable in any circumstance.