My understanding is Ukraine produces some of the hydraulics, targeting systems, electronics, etc. for the SU-30. Not sure how badly this will affect sales/production.
India has been building the SU-30 under license for about a decade or so. So, as long as the Ukrainian equipment, if any, is going to a foreign agency as opposed to a Russian one, I think production will continue. After all, the Ukrainian arms industry too needs to survive.