I am sending my employee to guanghzou what papers should he provide in order to get the visa?

Hi, following is the requirement by the embassy:
An invitation letter issued by a duly authorized entity OR

An invitation letter from the inviting entity and a confirmation letter of invitation issued by a duly authorized entity.The invitation should contain:

(1) Information on the applicant (full name, gender, date of birth, etc.)

(2) Information on the planned visit (purpose of visit, arrival and departure dates, place(s) to be visited, relations between the applicant and the inviting entity or individual, financial source for expenditures)

(3) Information on the inviting entity or individual (name, contact telephone number, address, official stamp, signature of the legal representative or the inviting individual)