Sapscript translated in non-english language - Garbled output as Email

Hi Experts,

I've translated a SAPscript  to Chinese and Thai language.

As per my requirement, the output can either be printed, emailed or faxed.

I'm using the standard include  RVADOPFO for Open form.

For the english version, I'm able to recieve the properly formatted e-mail output.

However in case of thai and chinese, the Thai and Chinese characters do not appear. Most of them are substituted with blank spaces and some are substituted with boxes and unknown characters. However, the numbers and english characters appear.

Please help in getting the correct output.

Thanks!

Nitya.