In a statement, Kodak Alaris blamed a ‘steady decline in sales and customer usage’.
It adds that the film, which was processed using convenient C-41 colour negative chemistry, ‘should continue to be available in the market for up to six months, depending on demand’.
Kodak BW400CN was popular with portrait photographers and advanced amateurs after powerful black and white photos.
Reacting to the news, Ilford Photo said it had no plans to discontinue Ilford XP2 Super, a fine-grain b&w film, also processed using C-41 chemistry.
Kodak Alaris was set up after UK Kodak Pension Plan acquired the Personalized Imaging and Document Imaging businesses from US-based Eastman Kodak in September 2013.
Kodak-branded film is supplied to Kodak Alaris under contract by Eastman Kodak in Rochester, USA.