Dear :

Thank you for your cooperation during our visit to . Now that we have completed the inspection of the factory, we can confirm the price of the service you requested:

[type of service and cost:]

As we agreed, we will come to your factory on [date], from [time] to [time]. Enclosed is a copy of our schedule.

Thank you again for giving us the opportunity to serving you. We look forward to working with you.

Sincerely yours,

[name]

[title]