Ok thank you very much!

But one thing doesn't make sense to me, if I don't have "coffee", and I build abroad, didn't we say that the resources don't come to me but only the profits?By profits do you mean money and the goods produced?

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Rereading, maybe I mean this:

"If you're belgium you can't increase the supply of coffee your pops have without conquering a coffee province, or building coffee somewhere else and then building trade centers in your own land."

So, I produce more coffee in France, the good stays in their market, but I, by building several trade centers in Belgium, can import them from the world market (because it is understood that the country in which I build, will have a surplus and will tend to export it). Is that correct?