hi aurorac.

i am Key Account Manager of visa center.

we can offer you a invitation letter for F.

Documents Needed:
1. a security management guarantee letter for the invited foreigner to China (signature by the artificial person and seal by the company)original
2. 《Foreigner Come to China Application Report Form 》
with the signature of the functionary and the chop of the company
3 the application of the invite side (draw up by the company itself make clear the name of the company, the purpose of foreigner coming to china, and the agenda of the foreigner in china. )
3. .copy of the business license of the invite side
4. copy of the first page of passport (if the invited come to china for work purpose, it also need the employment license given by the labour bureau or the work permit original given by the industrial and commercial bureau )
5. Copy of the recent visa page(multiple entries for half year need to provide f visa single entry within a year )
6. Employment license original if the work invitation

we can do the Company Materials .if you have any question ,contact me ,i will do my best to helo ASAP.....
13581595151 crystal du.