To whom it may concern.
Dear Sir,
This is the names of the persons who will go for working in 18-21 November 2013 The company will take the responsibility for the expenses which would occur on this business trip and would guarantee their returning to Thailand after the completion of this business trip
Names : …………………………..
No. Passport : …………………………..
Present position : …………………………..
Salary : ………………………….
We trust that the information we have presented above will assist you in granting the necessary visa to there. We look forward to your kind cooperation.