Part of the issue was caused by issues getting Canadian supplies of lumber into the USA due to a trade dispute. It's possible that these German mills are just

Part of the issue was caused by issues getting Canadian supplies of lumber into the USA due to a trade dispute. It's possible that these German mills are just taking advantage of being in a temporarily good trading position, with the understanding that cheap Canadian imports will retake their market position shortly. If they thought this was permanent, they would have expanded to supply the USA, rather than doing so at the expense of domestic production.