Dear Name,
On behalf of the management of( company name) I want to appreciate you for the hard work which helped in completing the project on time. We are aware that it was very difficult to complete the project on time after initial hiccups. It was your dedication and your team support that the project was successfully completed.
Your enthusiasm and motivation had helped the team member to increase the productivity and do extra work and to complete each aspect of the project. It’s really commendable to see how you organize your time and inspire your team members to move forward.
Please accept our sincere appreciation for the excellent job you had done, we are sure that in future also you will be able to complete such complicated projects in time. Wish you all the best for your future endeavors.
Sincerely,
Your name.