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PQ Corporation
PQ Corporation was founded in 1831 and was known as the Philadelphia Quartz Company from 1864 until 1978. The values of our founders - integrity and diligence and service, learning and imagination - are still reflected in our contemporary corporate culture. We believe that this culture and the strong spirit of teamwork it fosters are of immense benefit to our customers, our employees, and our suppliers alike. PQ Corporation is a leading producer of silicate, zeolite, and other performance materials serving the detergent, pulp and paper, chemical, petroleum, catalyst, water treatment, construction and beverage markets.
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