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Criterion Catalyst Co is a Michigan City, IN-based company in the Manufacturing sector.
Styrolution is a Channahon, IL-based company in the Manufacturing sector.
Altuglas International is a Bristol, PA-based company in the Manufacturing sector.
KLM Corp is a Bancroft, IA-based company in the Manufacturing sector.
Koppers is a global organization with two core businesses: carbon materials and chemicals and treated wood products. Our locations in North America, United Kingdom, Europe, China, and Australia work in unison with one another and employees at every location observe our corporate values. To be the most valued supplier of quality products and services in the industries we serve, by providing unsurpassed personal attention to our customers and attaining total quality in everything we do.