Participating Countries

Nation / IOC Designation	Debuted	IOC-Code	Notes
Cambodia	1959	CAM	-
Laos (IOC designation: Lao People's Democratic Republic)	1959	LAO	-
Malaysia	1959	MAS	-
Myanmar	1959	MYA	BIR 1948–1992
Singapore	1959	SIN	-
Thailand	1959	THA	-
Vietnam (IOC designation: Viet Nam)	1959	VIE	-
Brunei (IOC designation: Brunei Darussalam)	1977	BRU	-
Indonesia	1977	INA	IHO 1952 FIFA-code IDN
Philippines	1977	PHI	-
Timor-Leste	2003	TLS	IOA 2000