 In the northwest are found Romania's most important reserves of kaolin (china clay), extracted and used to produce porcelain.Hemp is cultivated in the Suceava plateau, cereals and wine grapes ("Vitis vinifera") in the Jijia Plain, Bălți steppe, Bârlad Plateau and Central Moldavian Plateau.In the Siret Passage they cultivate potatoes and sugar beets.