TOKYO, April 1 (Reuters) - Japan's third-biggest copper
smelter, Mitsubishi Materials Corp, said on Monday it
plans to produce 179,742 tonnes of refined copper during
April-September, down 1.4 percent from the same period last
    The company expects output at its Naoshima smelter and
refinery in western Japan to fall 2 percent, while production at
its Onahama plant, north of Tokyo, will stay nearly flat, it
said in a statement.
    Following are details of the company's output plan, with
comparisons against planned production in the second half of the
financial 2018/19 year and actual production in the first half
of 2018/19.