Operating income in the Industrial Business increased 28% year on year to ¥19.4 billion, despite a decrease in net sales due to the withdrawal from the glass substrates for HDDs business coupled with deliberate moves to downsize low-profit business involving lenses for compact digital cameras. Operating income in the performance materials field increased amid a 5% gain in net sales, while net income for the segment is undisclosed. The Industrial Business segment's operating profit ratio was 17.2%.