Join the OBA

The ACS OBA is the alumni association for all graduates of ACS schools.



Eligibility Requirements

To be eligible for life membership, applicants must be 18 and above, must have attended any of the ACS schools for at least one year; or must be teachers or former teachers of any of the ACS schools for at least five years.


Only life membership of the OBA is currently available, The fee for life membership is a one-time payment of $500 for applicants above 25 years of age and $200 for those who are 25 years or younger.


How To Apply

Presently applications can only be submitted in person or by post to the OBA secretariat. Applications must be accompanied by proof of attendance in an ACS school and a cheque payable to the ACS OBA for the life membership fee. For an application form, click here to get a copy created in Adobe Portable Document Format (PDF). To view the form, you will need Adobe's free Acrobat Reader (click here for download). The form can then be printed on A4 paper. Alternatively, you can contact the Secretariat at:

The ACS OBA Secretariat*

ACS Barker Road
60 Barker Road
Singapore 309919
Tel: 6259-7860
* Open from 9:00am to 5:00pm, Mondays to Fridays.