I have put links to show example of which i am referring to.
Additionally : It would be great if Sea Ports showed where exactly they are receiving their products and resources from, either by having factorys and resource points of its own or buying from a company, as just now the prices they offer
appear to come from nowhere and just made up.
Sea Port Gold Ring - Price

My Factory Cost - Gold Ring

Even if there is a perfectly logical explanation for the vast difference in price, it would still be nice to see where they magically get their price from.