Jul 05, 2012. /Lesprom Network/. Tembec has announced the following summer closures for its Quebec mills: Senneterre will be closed for two weeks beginning July 16 and reopening July 30. La Sarre will be closed for three weeks beginning July 2 and reopening July 23. Bearn will be closed for two weeks commencing July 23 and reopening August 6, as Random Lengths reported. In Ontario, Tembec's Cochrane mill will be closed for two weeks beginning July 30 and reopening August 13. Kapuskasing will be closed beginning July 6 and reopening July 16. Hearst will be closed for six days beginning July 30 and reopening August 7. Tembec is a manufacturer of forest products – lumber, pulp, paper and specialty cellulose – and a global leader in sustainable forest management practices.