Cargill Dow, a joint venture of Cargill Inc and Dow Chemical, has announced that Trainor Critz is now manager for North American fibre sales. Critz will work with targeted brand owners, fabric mills, and Cargill Dow's fibre development partners to bring fabrics containing NatureWorks fibres to market. He will be a part of the team responsible for implementing the company's fibres strategy in North America. Critz joins Cargill Dow after 32 years with DuPont in various manufacturing, technical, sales and management positions. Most recently, he held two positions within DuPont; first as business segment manager for the Nega-Stat antistatic fibres and secondly as the segment manager for the performance market arena.