A foreign direct investment (FDI) is an investment in the form of a controlling ownership in a business in one country by an entity based in another country. If we look at the articles about the history of FDI or Foreign investments over the web, we find that authors are only covering the part of the history of FDI from the last two decades. For e.g. in this PDF " Concept and Historical Background of Foreign Direct Investment" the first phase starts from 1870-1914.
Now we know the empires like the Roman empire did build roads or religious structures in regions they conquered, this could be an example of Foreign investment. But that was in the plan of their territorial expansion and keep those regions under their rule and was not part of Mutual Collaboration.
Also I am not asking about FDI or Foreign investments made during the Colonial period by British, Spanish, Portuguese multinational enterprises etc. Like The East India Company and such. But records of earlier forms of FDI mostly from the medieval period or earlier.
Do we have any records of any individual kings, nations, guilds making an FDI / Mutual collaborative projects in another region or country, not as a conqueror but for mutual business benefits? like improving the roads, construction works, shipbuilding, construction of ports etc. in treaties from the pre-medieval or medieval era. ?