1736 ET - Canadian Prime Minister Mark Carney met with senior executives from nearly two dozen corporations and pension funds to discuss domestic economic policy amid a deteriorating U.S.-Canada trade relationship, the leader's office says. In a statement, Canada's Prime Minister's Office adds Carney asked leaders to share their thoughts on what might be required. Canada and the U.S. broke off trade talks this month, leading to the U.S. slapping a 50% tariff on about $20 billion in Canadian goods. Canada intends to impose retaliatory tariffs on U.S. products next week. Among the companies participating in the Carney meeting were Royal Bank of Canada, Canadian National Railway, Nutrien, BCE and Teck. Pension-fund participants included the CPP Investment Board, Ontario Teachers and La Caisse.