NIPPON LIGHT METAL CONTINUES ALUMINIUM OUTPUT CUT Nippon Light Metal Co Ltd <NLGT.T>, which has annual capacity of 63,000 tonnes, will continue primary aluminium production at a rate of 35,000 tonnes owing to low domestic and world prices and low water supplies at its hydroelectric power plant, a company official said. Nippon, which has no plans to restore output to the 48,000 tonnes a year at which it was working until late 1986, will become Japan's only smelter. <Ryoka Light Metal Industries Ltd> will stop smelting in April owing to high power costs and low prices, and <Mitsui Aluminium Co Ltd> has said it stopped smelting in February.