The current capacity was originally built overseas to meet overseas demand or was subsequently built to meet U.S. demand for catalyst spurred by the NOX SIP Call and the build up of gas turbine power plants in the U.S.
Catalyst capacity would have remained steady had no new plants been built.
mnli hypothesis: Catalyst capacity would have remained steady had no new plants been built. premise: The current capacity was originally built overseas to meet overseas demand or was subsequently built to meet U.S. demand for catalyst spurred by the NOX SIP Call and the build up of gas turbine power plants in the U.S.