Hello Paul,
just to be precise: Astrum owns (or has the right) now to use the Svema brand name. But the former Svema plant / facility was completely demolished. Nothing left. I've seen pictures of the demolished plant. None of the emulsion making and coating machinery was saved, it's all long gone. The Svema factory was one of the first film factories being closed.
Current films under the Svema label are already existing films coated by other manufacturers, e.g. Tasma.
Best regards,
Henning