(Address)
It’s our great honor to invite you to visit Company located at (address) in August, 20xx. This visit will provide an opportunity for you to make a better understanding of our marketing issues, and to communicate our future business cooperation in detail.
Company, as one of your distributors in China, has been great progressing in promoting and selling your products. We believe this visit will be of great benefit to our future business cooperation.
Please use this invitation letter to apply for your VISA to China.
We are all looking forward to seeing you soon, and should you have any questions, please feel free to inform me.
Yours truly