Beijing says Trump’s additional duties of 25% on steel and 10% on aluminum violate international trade rules.
US solar business has boomed in recent years, driven by falling prices from imports.
An overall tariff of 6.53% levied on about 25 Canadian plants, mostly in Quebec and Ontario.
Decision blows past Boeing’s requested 80% tariff; Bombardier accuses Boeing of seeking to use a skewed process to stifle competition.
Ross touts a 48% increase from last year in anti-dumping and countervailing cases initiated by the US Department of Commerce.
TPP would be Canada’s biggest trade deal since NAFTA, encompassing a population of 790 million people.