Questions linger over profitable Tiwai Point smelter's value, Rio Tinto says

Questions linger over profitable Tiwai Point smelter's value, Rio Tinto says
By Paul McBeth March 9 (BusinessDesk) - The Tiwai Point almunium smelter is back to running a profitable operation, though uncertainties about its outlook have left question marks over its intrinsic value, according to majority owner Rio Tinto. The smelter "is currently profitable as a result of high regional and product premiums and operational cost improvements," Rio Tinto said in its 2014 annual report, confirming electricity supplier Meridian Energy's analysis last month that the plant should be running a cash surplus. The smelter mak...