China Z Visa Application Form

I have received my work permit and am currently filling out the visa application form for my Z Visa. I have reached the section regarding ‘inviting person or organisation in China', is this section only to be filled out if I've received an official invitation letter?


I only have the work permit and not the invitation letter (as it's not required) so not sure whether to fill this section out or leave it blank and press not applicable.. Has anyone recently gotten their Z visa that can advise?


Thanks in advance