PPG Industries (NYSE:PPG) has announced that the International Chemical Workers Union Local 45-C July 2 ratified a contract agreement with the company at its Natrium commodity chemicals plant. The agreement, which replaces the existing contract that expires Aug. 18, is a three-year agreement that will expire Aug. 21, 2013.

“We believe the interests of both the employees and the company were met in this negotiation, which took place well before the expiration of the existing contract,” said Jim Rock, PPG plant manager at Natrium. “I’m glad we have this behind us so we can continue to focus on our safe and environmentally sound manufacturing process while looking for more efficient methods to make our products.”

PPG’s Natrium plant manufactures chemicals, primarily chlorine and caustic soda, that have a wide variety of end uses including water purification, paper and plastics production, and as key building blocks for pharmaceuticals. The plant began operations in 1943 and employs about 525 people.

PPG Industries’ vision is to continue to be the world’s leading coatings and specialty products company.Founded in 1883, the company serves customers in industrial, transportation, consumer products, and construction markets and aftermarkets. With headquarters in Pittsburgh, PPG operates in more than 60 countries around the globe. Sales in 2009 were $12.2 billion. PPG shares are traded on the New York Stock Exchange (symbol: PPG).

For more information, visit www.ppg.com.