Just wanted to take a minute to tell you what a great job you're doing with [INSERT PROJECT NAME]. You are a tremendous asset to the company, and I'm glad to have you on my team.
On behalf of [INSERT COMPANY NAME] management, I would like to congratulate you on your outstanding job performance. [INSERT COMPANY NAME] management is particularly impressed with the work that you have recently completed on [INSERT PROJECT NAME].
It is because of you, and others like you, that [INSERT COMPANY NAME] continues to prosper. On behalf of [INSERT COMPANY NAME] management and staff, please accept my congratulations on a job well done.