Puerto Rico is an unincorporated territory of the United States. As well as the United States it's a non-AEOI/CRS country. Nevertheless, there is FATCA enforced in the United States; I do not know whether is concerns also Puerto Rico: if not then you cannot be reported, if yes then in theory you can be reported; but in the practice company accounts from the U.S. are not reported and personal ones rarely,︀ AFAIK (FATCA represents rather one-way information flow, about US citizens to the feds from abroad).︁