Canada’s largest diversified miner Teck Resources has reported a remarkable jump in headline earnings for the three months ended June, with the company’s steelmaking coal division benefiting from higher prices and sales volumes. Adjusted profit attributable to shareholders in the period under review was an eye-popping C$577-million, or C$1.00 a share, compared with C$3-million, or C$0.01 a share, in the same period last year.