Since 2012, this annual event has been an education and lifeskills-focused forum open to all ACS and Methodist schools in Singapore aimed to provide insights from industry practitioners to students, parents and ACS alumni to gain a better understanding of the challenges and expectations of different careers and industries. Sponsored by ACSF and organised by the ACSOBA, it is the largest annual flagship ONE ACS event featuring speakers selected from ACS alumni that highlight varied pathways to fulfilling career options across diverse traditional and non-traditional professions. It also conducts local tertiary institution admissions sessions and interviewing skills workshops. 

The “ONE ACS” initiative started in 2006 unites all Singapore ACS schools and entities to strengthen their unity and emphasize the importance of working together for a common vision and purpose.