Sustained high lumber prices in 2018 will cover the cost of final duties imposed by the US government on Canadian lumber imports, benefiting North American producers and timberland owners, Moody's Investors Service says in a new report.  "The continuation of tight lumber markets will allow the estimated $1.2 billion of duties to be collected in 2018 to be passed on to the US consumer via elevated lumber prices," says Ed Sustar, a Moody's Senior Vice President. "This is credit positive for our rated Canadian and US lumber producers, as high prices will outweigh the cost ...