Vancouver, British Columbia, Canada, 10 June 2008 -- Ainsworth Lumber Co. Ltd. today announced that it will curtail operations at its oriented strand board (OSB) mill in Cook, Minnesota, USA, on 16 January due to reduced customer demand. Log deliveries will continue to be accepted during this closure. Ainsworth will be re-evaluating the closure at the end of January. The Cook mill has an annual production capacity of approximately 440 million square feet (3/8-inch basis).

Ainsworth also announced that its OSB mills at Grande Prairie, Alberta, and 100 Mile House, British Columbia, will be closed for scheduled maintenance. The Grande Prairie mill’s closure is planned for 28 January through 03 February. The 100 Mile House mill’s closure is planned for 11 February through 19 February. The Grande Prairie and 100 Mile House mills have annual production capacities of 665 million square feet (3/8-inch basis) and 425 million square feet, respectively.

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