"Advancement" is the process of purchasing a home, the down payment is insufficient, by the so-called "money service company" or guarantee company to come up with funds to help the next family to make up the down payment to help complete the purchase of the behavior. Of course, the borrower to charge 2% to 5% of the "advance" fee, to put it plainly, this "advance" behavior is similar to private loan sharks.
Procurement refers to the behavior of the agent procurement, that is to say, the third party commissioned by the purchasing staff to carry out the procurement behavior, on behalf of the procurement is generally to charge the corresponding fees and service fees, on behalf of the procurement is also a profession, but the market is not common. Sales refers to the sale of goods or products for export sales behavior, the object of sales is their own customers, may also be government departments or other customers. Sales is one of the ways to maximize profits for a company.