London-listed miner Xstrata
The newspaper said Xstrata was the only suitor to table a fully-financed offer for the business, which is being sold by family-owned U.S. group Drummond
Bank of America-Merrill Lynch, which is running the auction, extended the timeframe to allow other bidders including London-listed Vedanta Resources
However, they have struggled to do so, putting Xstrata in pole position to secure a deal, it added.
Xstrata declined to comment.