A lumber producer in Thessalon, Ont. that has been active for more than seven decades quietly shuttered its operations late last month — resulting in the layoff of roughly 40 employees in the weeks leading up to its impending closure. Midway Lumber Mills Ltd. first notified employees of plans to shut down the mill and lay off its workforce in October of last year, the soon-to-be former chair of USW Local 8748 told SooToday on Monday. “We got nine weeks advance notice that it was going to happen,” said Derrick Bookman, who has worked in a number of roles at the mill over the years. “They went above and beyond.”