Steam can be a bit finicky with DLCs, you may have to reinstal EU4.You have to click on the provinces in each trade node and then go to the state tab, there you can spend ducats to gain trade, production, and military bonuses.It scrolls! That should have been more obvious sooner, but since google took me here, I'm actually replying. If you have Dharma, you can go to a trade company province and at the bottom of the state window are the investments.
Removing a province from a trade company gives th
To be eligible, a province must not be part of a state, and any province that becomes part of a state will suffer automatic removal from the trade company. To start a trade company, you can add all your eligible provinces in the node at once in the trade node UI, or one by one in the province UI. Home Eu4 best trade company investments Trade company - Europa Universalis 4 Wik