The Non-Immigrant "RS" visa is for "Scientific research or training, or study in an educational institution in the Kingdom of Thailand".
Application for further stay to research or science research or teaching in the Research Institution or Educational Institution in the Kingdom
Required Documents
In case of science research or teaching in the Research Institution or Education Institution in the Kingdom of Thailand
Note
If there is a verification form or document by the Embassy or Consulate, you also need to have :