TOKYO, April 6 (Reuters) - Pan Pacific Copper Co Ltd, Japan's top copper smelter, plans to produce 291,600 tonnes of copper in April-September, down 1.6 percent from the same period last year, the company said on Tuesday.
Sumitomo Metal Mining Co Ltd, Japan's second-largest copper smelter, said it plans to produce 404,000 tonnes of copper in the full year that started on April 1, up 0.7 percent from its plan a year earlier. Half that amount will be produced in April-September.
Third-ranked Mitsubishi Materials Corp said it plans to produce 157,512 tonnes of copper in the first half, up 7.5 percent from a year earlier.
Japan's copper output has been slow to pick up, hampered by strong deflationary pressure and sluggish demand from the construction sector, a major consumer of the metal.
Copper production by most Japanese smelters had been about 10 percent less than their capacity since early 2009 as the worst economic downturn in decades forced manufacturers to reduce production and led to a sharp decline in metals consumption.