Do you expect Boeing to come out and say they accept subsidies when their whole business model is to sue the competition?
https://www.latimes.com/business/hiltzik/la-fi-hiltzik-boein...
https://www.seattletimes.com/seattle-news/boeings-historic-t...
Boeing doesn't necessarily get direct subsidies but they get hefty tax breaks. Boeing will almost certainly get bailed out by the feds if the MAX or 777X come close to bankrupting them.