Congratulations on examination success
[Date] [Name] [Address] Dear [Name] Just a note to congratulate you on passing your recent [examinations]. You have worked extremely hard over the past year and I'm delighted that you are now reaping the rewards of all your efforts. No one deserves it more than you. I look forward to speaking to you shortly about your very promising future in the company. Once again, congratulations to you. Yours Sincerely [Your Name] [Your Title]