(SGI) Lenzing, the producer of cellulosic fibers, is switching out one member of its management board and expanding it by one seat. On March 1, Stephan Sielaff, Lenzing’s new chief technology officer, will take the seat vacated late last year by Heiko Arnold, who has left the company. A chemical engineer by training, Sielaff has spent the past six years as chief operating officer at Archroma. Before that he spent almost 15 years in vice presidencies at Syrmise and more than 11 years in various management posts at Unilever. On June 1, Christian Skilich will assume a new seat on Lenzing’s management board to supervise the new pulp and raw materials division. According to Sportstextiles.com, Skilich has previously worked for paper, packaging and glass producers and was most recently chief operating officer at Mondi. The chairman of Lenzing’s supervisory board, Peter Edelmann, says that the company will spend the next few years “strongly increasing our own supply of pulp,” as per its sCore Ten strategy. Hence the new division.