However, once this trade cooperation agreement is signed, from then on the Da Yue Dynasty will have to dispatch a diplomatic mission to permanently reside in Yan County of the North Country, and the North Country will also have to send a diplomatic mission to permanently reside in the Capital City of the Da Yue Dynasty.
In name, they claim it is for the sake of trade cooperation and to prevent issues from arising with the trading caravans on each other's territory, which would leave no one to resolve them.
The mutual dispatch of diplomatic missions means that, should any commercial issues arise, they can be communicated in a timely manner.
Although it's said to be for the sake of trade, anyone with a discerning eye could see that this was no different from establishing diplomatic relations, just short of the two sides publicly and directly doing so.