In addition, Alcoa has taken action to manage its debt maturity schedule. Excluding 2014 convertible debt, bond maturities have been minimized to $422 million over the next four years.Alcoa has now completed its planned closure or curtailment of 531,000 metric tons, or 12 percent, of its highest-cost system smelting capacity, further improving the Company’s competitive position. Segment Information Alumina ATOI in the fourth quarter was $41 million, up $50 million sequentially and down $84 million from fourth quarter 2011. The sequential increase was driven by continued productivity gains and positive London Metal Exchange (LME)-based pricing, somewhat offset by a slower rise in Alumina Price Index-pricing. Primary Metals ATOI in the fourth quarter was $316 million, up sequentially from negative $14 million, and up from negative $32 million in fourth quarter 2011. The $330 million sequential improvement was driven primarily by the closing of the Tapoco Hydroelectric Project asset sale, productivity gains within the segment, and positive LME-based pricing. Third-party realized price in the fourth quarter was $2,325 per metric ton, up 5 percent sequentially, but down 2 percent year-on-year. Global Rolled Products ATOI in the fourth quarter was $69 million, down from $98 million in the third quarter of 2012, but up from $26 million in fourth quarter 2011, a 165 percent year-on-year improvement. Sequentially, seasonal volume declines in packaging were somewhat offset by productivity improvements. The $43 million year-on-year improvement was driven by volume, productivity gains, and better price and mix, somewhat offset by cost increases. Global Rolled Products had record fourth quarter ATOI and adjusted EBITDA per metric ton. Days working capital was a record at 30 days, an improvement of 8 days compared with fourth quarter 2011. Engineered Products and Solutions ATOI in the fourth quarter was $137 million, down $23 million sequentially and up $15 million, or 12 percent, year-on-year. Sequentially, cost increases and unfavorable volume and price/mix were somewhat offset by continued productivity improvements. The year-on-year improvement was driven primarily by productivity gains, partially offset by cost increases.