Eastman Kodak has no role in the production or marketing of photo chemistry.
Is that true with motion picture chemistry?
If I understand you correctly, Sino Promise is now the group that pics up the phone, chats to chem. manufactures, and says, "Please make X-tol for us, under these conditions?"
KA will still call up EK and say, "Please make up some Portra 400." Sino likewise calls up someone (who?) to make RA-4 paper. All of this includes a "Kodak" label, including the now to be new Sino products?
Do you avoid Ilford branded chemicals because they are owned by a holding company and don't manufacture anything themselves?
I don't really see this as being a comparable question. Yes, Ilford is subsidiary, but Ilford remains an intact photographic production and supply company who makes film and paper, outsources custom made chemistry, and is active in marketing and branding of all of these products. All the players are down the hall from one another, eat at the same lunch room, and might even visit one another for dinner.
Faux-dak by comparison is a mess. EA makes film (wonderful film) for an independent company that uses the Kodak label. But also for hollywood with the (true) Kodak label. Want Kodak paper or photo-chemicals? Sure go visit yet another independent company who (I think) will use the Kodak label. What is shared by both KA and Sino Promise? Each has traditional photography as secondary interests. What does it even mean to use Kodak products? I know what it means to use Ilford products.
I watched the SilvergrainClassic video cast last night that featured among others JOBO ceo and Andy Church of Kodal Alaris. At one point the discussion came around big spike in at home RA-4 printing and Mr. Church was left gaping like a guppy. It was obvious that he was unaware of this trend. Whereas, ALL of the other participants knew this was a thing. For completeness though, Mr. Church was wonderful in the rest of the pod-cast. He should be the face of KA photo more.