ESW Canada (ESWC), located in Concord, Ontario, manufactures the company's proprietary diesel, gasoline and alternative fueled engine catalyst products. ESWC also serves as the Company's International Sales and Marketing Division for both products and services. 
ESW America (ESWA), located in Montgomeryville, Pennsylvania, is the Company's comprehensive Tech Center. ESWA also operates "Air Testing Services", recognized by both EPA/CARB as capable of performing engine emissions verification test protocols. 
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