The Thai SDK is available in the original SDK, but there is no Thai on the iink asset download page.
Deat Hwayoung Choi,
thank you for contacting us.
Indeed, the Thai SDK is not available in the iink SDK.
Due to technical limitations, at present, we cannot commit if/when it will be done.
When will you be able to use it?
It's strange that the existing SDK has a Thai language, which is not available for iink SDK.