PQ Holdings (formerly PQ Corporation) minds its Ps and Qs when producing industrial chemicals. It operates in three principal segments: Performance Chemicals, Catalysts, and Specialty Glass Materials. PQ is one of the world's largest producers of sodium silicates (a widely used glass product made from sand). Its Catalysts unit produces silica and zeolite-based catalysts serving the polyethylene, polymerization, chemical synthesis, emissions control, lube, and refining markets. The company's Specialty Glass Materials business produces engineered glass materials for the transportation safety, oil and gas, polymer additives, and metal finishing markets. The
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|NIPPON CHEMICAL INDUSTRIAL CO., LTD.|
|OXY Chemical Corporation|
|BRENNTAG NORTH AMERICA, INC.|
|Industrial Chemical Manufacturing|
|Glass & Glass Product Manufacturing|
|4 Industries on file|