(ShareCast News) - Plastic and packaging products provider Essentra has confirmed the appointment of Stefan Schellinger as its finance director.Schellinger had been named interim finance director late in August to replace Matthew Gregory, who left the company to become FirstGroup's chief financial officer from 1 December.The FTSE 250 group said the new finance director will step into his new role immediately.Essentra shares were down 0.35% to 850.50p at 1439 BST on Thursday.