Business Trip without an inviting company

Hi, I will be visiting China for the first time. Our company in PRC is not yet established. I will go there to meet the potential staff that we may have. I am not sure if I can skip the invitation from a certain company from PRC. But we have a staff from Taiwan who will manage the office we will establish in PRC. Is it ok just to have his invitation and what other requirements do we need to prepare? Thank you very much in advance.