May 08, 2008. /Lesprom.com/. Tembec is indefinitely shutting down its hardwood plant in Mattawa, northern Ontario. The facility, which employs 52 people, will close on June 30 for a minimum period of ten weeks. According to a report by The Canadian Press, spokesman Richard Fahey confirmed the company will revisit the situation in August in order to evaluate a potential restart in the fall. Higher fossil fuel prices are driving transportation, chemicals and direct energy prices upwards. Slumping housing starts in the U.S., slipping hardwood and pine flooring products prices and a robust Canadian dollar have also affected the company's competitive position.