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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.
Opco is a Latrobe, PA-based company in the Manufacturing sector.
Wisdom Adhesives Worldwide is a Elgin, IL-based company in the Manufacturing sector.
R-Jet-Tek Inc is a Colorado Springs, CO-based company in the Manufacturing sector.
5N Plus is the leading producer of specialty metal and chemical products. Fully integrated with closed-loop recycling facilities, the Company is headquartered in Montreal, Québec, Canada and operates manufacturing facilities and sales offices in several locations in Europe, the Americas and Asia. 5N Plus deploys a range of proprietary and proven technologies to produce products which are used in a number of advanced pharmaceutical, electronic and industrial applications. Typical products include purified metals such as bismuth, gallium, germanium, indium, selenium and tellurium, inorganic chemicals based on such metals and compound semiconductor wafers. Many of these are critical precursors and key enablers in markets such as solar, light-emitting diodes and eco-friendly materials.