[USA] PPG Industries is raising prices in response to rising energy costs. The company said it will raise its fibreglass prices by 6 cents/pound for all fibreglass deliveries to N&S America, & won't enter into long-term contracts without price flexibility to offset energy & other costs outside the company's control. According to the firm, natural gas costs have doubled since last year. "The sudden, unanticipated impact to energy costs has made an already unsustainable situation even worse for energy-intensive manufacturing in the US and there is no clear end in sight," said PPG. "We continue to eliminate costs from our structure at every possible opportunity, but there simply is no way to recover millions of dollars of immediate cost impact due to energy. Nor is it prudent to establish firm pricing when the cost basis of the industry remains volatile."