Eastman Kodak manufactures the Kodak films - both still and motion picture.
Eastman Kodak markets and distributes the Kodak motion picture film.
Kodak Alaris is responsible for all the marketing and distribution worldwide of Kodak still films, which are manufactured for it by Eastman Kodak. Eastman Kodak does not sell {Kodak} still film to anyone other than Kodak Alaris.
Kodak Alaris recently sold to Sino Promise the Kodak paper and chemicals business. The actual manufacture of those products is in some cases also done by Sino Promise, while other products are manufactured for Sino Promise by others under contract.
The Kodak brand is owned by Eastman Kodak and licensed to others, including Kodak Alaris, Sino Promise, and companies making all sorts of other things like digital cameras and batteries.
Back in 2012,as part of the Eastman Kodak bankruptcy, Eastman Kodak transferred to Kodak Alaris all the business that Kodak Alaris and Sino Promise currently operate, reserving to itself just the manufacturing and motion picture film marketing that it currently does. The majority of Eastman Kodak's (and its subsidiaries) went with it, along with associated land, building and leasehold interests worldwide (outside of Rochester NY). At that time, Kodak Alaris was much "bigger" than Eastman Kodak.