Alcan, the aluminium unit of mining group Rio Tinto, plans to cut another six percent of output and will shed 1,100 employees to cut costs following a slide in metals prices, the firm said on Tuesday.

The move by the Canada-based firm will bring the total production cuts to 450,000 tonnes, or 11 percent of total annual capacity.

The firm also plans to reduce production of alumina, the raw material to make aluminium, by 6 percent, a statement said.

Our goal is to align production with customer demand and reduce our operating costs as much as possible, said Dick Evans, chief executive of Rio Tinto Alcan.

The firm will permanently close down its Beauharnois smelter in Quebec and temporarily cut production at its Vaudreuil alumina smelter by 400,000 tonnes. (Reporting by Eric Onstad; editing by Simon Jessop)

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