@Blade, basically there is only one Thai bank that does not charge you a 150Baht withdrawal fee when withdrawing money using a foreign issued card; that bank is Aeon. I am fairly sure that is the only bank in Thailand that continues to charge nothing - the 150 Baht fee was only introduced a few years ago and adopted by every bank except Aeon, before that it was completely free for all.
In regards to China, no ATMs should charge you a fee for withdrawals using a foreign issued card - at least the Bank of China doesn't.
Also, Bank of China does NOT charge a fee for withdrawing money from your own account using your Bank of China card in the city the account was opened. Maybe other banks do, but the Bank of China doesn't charge from what I've seen.
Beware that not many banks in China have ATMs that take foreign cards. The only three that are trouble free with foreign issued cards are Bank of China, China Construction Bank and ICBC (and foreign banks, such as ANZ which are only found in major cities like Shanghai, Chongqing, Guangzhou and Beijing). However, the limit per withdrawal is 2500 Yuan at the Bank of China and often less elsewhere. It seems that it is not possible to make a cash advance using your foreign issued credit card for more than the ATM limit in one transaction. This is probably a government law to put a limit on funds that can be brought into or taken out of China in any one day.