"As I mentioned in a phone conversation with you last week, I would again want to share my appreciation to you for doing a great job for us at OXBO.
When we struggle with other subcontractors, suppliers and vendors, you can always recognize when someone stands out and does a great job for us.
You were always organized and on top of the schedule and all your deliveries.
You sent us updates on the status of your deliveries every week.
Your deliveries were always on time for the day that we had scheduled it.
Those are just a few items that represent good performance on your part.
Again, thanks for your contribution and efforts for our project.
Look forward to working with you again."