I know technically it's US territory, but Puerto Rico isn't even a US state. It's so pathetic, desperate, and disingenuous to call a Puerto Rican international financial entity (which is not a bank license) an American bank. It offers practically none of the stability and safety of an actual US bank.
CBI Bank's website defaults to Chinese and they offer RMB accounts and CUP cards (no Visa, Mastercard, Amex). It's pretty clear who their target audience is: Chinese people looking to hide money from China, because FATCA doesn't apply in Puerto Rico.