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Chemical and glass producer PPG Industries Inc. said it would appeal an award to privately held Marvin Windows and Doors by a federal jury here on Thursday.

Officials at Pilkington North America were pleased with the recent decision of the U.S. Department of Energy (DOE) to delay the implementation of the new Energy Star criteria for windows in order to further review the changes that are being made in…

Nippon Sheet Glass, a large Japanese manufacturer, has increased its holding in Pilkington, the UK glass group, from 10 to 21 per cent over the past fortnight, but has ruled out mounting a full bid.