CALGARY — The National Energy Board says exports of Canadian wood pellets to be burned as biomass fuel jumped by 46 per cent in 2016 as demand soared in the United Kingdom. The federal agency says Canada exported 2.4 billion kilograms in 2016, making it the second-largest exporter by weight after the United States. About 70 per cent was shipped to the U.K. and 11 per cent to Japan. The Canadian industry has grown by 73 per cent over the past four years, the NEB says. About 65 per cent of Canada’s pellets are produced in British Columbia.