The "BVK" plant, which started operation in 1973 and was closed in 2003, used n-paraffins (produced by the oil refinery nearby) as feed for yeast, in order to produce the so-called "protein and vitamin concentrate" (single-cell protein) for use as animal food [REF].
Belgium's SolVin is working with SIBUR on building a PVC production plant "RusVinyl" in Kstovsky District [REF].