The Buzzi Unicem USA cement plant in Greencastle, Indiana, has received the Governor’s award. Each year the Governor selects a plant that has voluntarily achieved appreciable and measurable reductions in environmental pollution or waste production.
In 2000 the Greencastle plant converted its long wet kiln to a semi-dry kiln. This innovative, advanced technology has been a great success, both by greatly increasing clinker production, from 720,000 tons to 1,340,000 tons per year and by achieving significant reductions in emissions without costly new air pollution control equipment.

Compared to the wet kiln emission levels, in the past four years actual SO2 emissions have been reduced by an average of 89% and NOx emissions by 38%, and there were reductions in particulates, dioxin-furans and hydrocarbons. The technology used at Greencastle has also received another award: in 2002 the American Portland Cement Alliance, the Portland Cement Association and American industry magazines awarded the same plant the Cement Industry Environmental Award for Environmental Innovation.