Fuel Tech has a default edge in NOx compliance, the line item nearly every new US power permit hinges on, after 35 years selling retrofit NOx control. Every boiler is custom, so the incumbent with installed-base data wins and nobody scales in overnight. It has $26M TTM revenue at a 46% gross margin, 1.2x EV/sales and $21M net cash. But it is a loss-making micro-cap with revenue down 5% and heavy project concentration, and new gas plants could spec full SCR packages and skip retrofit specialists. x.comÂ
