@FrenchBaguette there is zero chance that the account would be a bank or financial account -- there is quite a bit if info on the web pages of tax lawyers dealing with expats and these generally suggest that this French entity is considered a PFIC. I just have not found any case law challenging this IRS position. The penalties for mishandling this is quite onerous and therefore please seek help from tax professional / attorney whom is familiar with PFICs -- not just international taxation.
Sorry I could not bring you any good news on this. Generally US tax laws discourage US persons being involved in PFICs.
