In the Performance Materials segment, sales increased 11% to $1.6 billion, reflecting 9% higher volume and a 5% increase in selling prices, partly offset by a 3% portfolio change. The higher volume reflects double-digit growth in Asia Pacific and North America. Segment PTOI was $206 million, an improvement of $32 million, resulting from a $31 million combined benefit from an acquisition and an early termination of a supply agreement. The impact of higher volumes was offset by a weaker overall sales mix and increased raw material costs.