This is probably the most stupid post of this website up to the moment, but I couldn’t find the information anywhere else; so here it is, the list of country codes for the Asia Pacific region (APAC) and it’s two letters ISO equivalent.

Australia,AU
Brunei,BN
Cambodia,KH
People's Republic of China,CN
Hong Kong,HK
Macau,MO
Fiji,FJ
Indonesia,ID
Japan,JP
Kiribati,KI
North Korea,KP
South Korea,KR
Laos,LA
Malaysia,MY
Marshall Islands,MH
Federated States of Micronesia,FM
Nauru,NR
New Zealand,NZ
Palau,PW
Papua New Guinea,PG
Philippines,PH
Samoa,AS
Singapore,SG
Solomon Islands,SB
Thailand,TH
Timor-Leste,TP
Tonga,TO
Republic of China (Taiwan),TW
Tuvalu,TV
Vanuatu,VU
Vietnam,VT

Maybe it will save someone’s 5 mins.