Trading Post

The trading post is a building that lets your send resources to your allies. One of the nice features of the Trading Post is that you don't need to know the coordinates of the person to whom you are sending resources to. All you need to do is look up them up in the Trading Post's directory, and it will take care of the delivery.

Unfortunately, there is a tax on all resources sent out. So, if you want to send, say, 500k lumber to someone, you will need to add on a percentage more than that for them to receive the full 500k. The tax decreases by 1% every time you level up the building.