Jiang wants to sell his products manufactured in his country to consumers and several other asian countries this will involve him in international trade what needs to be in place so jiang can accurately determine the price of his products in these other nations

The answer to this question is a system for exchanging currencies between countries
By creating the system for exchanging currencies, both parties involved in the trade could detemrine a fair pricing that wouldn't defect each or both parties during the trade so the value that they would receive would be pretty much the same if compared to the local trades