How to create a loan creditor

I would like to find out how can I create a loan creditor.

My company buys from China and there is this man in China that helps me pays my supplier first. The money is pay direct to the supplier without going thru my bank account. The money I owned him I will help him pay when he buys products from USA or TT back to him in China as and when needed.

My question is how to do I create an account for this man?

Is he a vendor/customer/account? How can I used the money in this man account to offset payment to my supplier?

Thanks