Canadian Trade Minister Mary Ng says Canada is formally initiating a challenge of “unwarranted and unfair” U.S. duties on Canadian softwood lumber.  The Canadian government filed notice of the challenge today under the U.S.-Mexico-Canada trade agreement’s dispute resolution system.  Ng says in a statement that the duties harm Canadian businesses and workers but also serve as a tax on U.S. consumers already dealing with inflation and supply-chain issues.  The U.S. cut its anti-dumping and countervailing duty rate in half earlier this month to 8.59 ...