The Offshore Trading Post is the Tycanian Bank, which allows you to take out a loan in Phase I. However, you will have to pay back this loan at a high cost.
How to play: If you control the Offshore Trading Post at the end of Phase I, take a debt token! You may also take either 10 resources of your choice or 50 capital. In Phase II of the next cycle, you must pay either 15 resources of your choice or 75 capital to the bank, allowing you to discard the debt token. If you cannot or do not wish to do so, discard 2 victory condition cards.