NALCO calls bids for 30,000 T alumina sale-sources

BHUBANESWAR, India, June 23 (Reuters) - Indian state-run National Aluminium Co Ltd (NALCO) has invited bids for sale of 30,000 tonnes of alumina, two senior company officials said on Tuesday. The last date for bid submission is July 9, one official with direct knowledge of the tender said. NALCO, whose prices are watched by the industry as a global benchmark, sold 30,000 tonnes of alumina at $227.64 a tonne on April 8.