Air Transport Executive Staff Union was formed in 1965 and they represent executive PMEs of SIA Group of Companies and SATS.
Timothy works in SATS Ltd based in Changi Airport. He is an Exco member of AESU and Youth Wing Chairman for Young AESU. He is also the Vice Chairperson (Service Sector) of Young NTUC Committee. His sporty and outgoing personality allows him to be involved in various social and sporting related events. His hobbies include soccer, singing, rock climbing, cycling and other social events.