WARRENVILLE, Ill.–(BUSINESS WIRE)–Fuel Tech, Inc. (NASDAQ: FTEK), a technology company providing advanced engineering solutions for the optimization of combustion systems, emissions control, and water treatment in utility and industrial applications, today reported financial results for the first quarter ended March 31, 2021 (“Q1 2021”). “Our first quarter 2021 results reflected a nearly 60% increase in net sales at our FUEL CHEM(R) business segment, driven primarily by the installation of our