The kiln line upgrade of the Adrianopolis plant in Parana, Brazil, of Supremo Secil Cimentos is progressing. The kiln capacity of the 1.7 Mta plant is expanded to 3900 tpd by FLSmidth, who initially supplied and commissioned the plant in 2015. In particular, the upgrade of the pyro process system includes modifications of the preheater, cooler and related auxiliary equipment. At the same time with the capacity expansion, the use of fossil fuels will be reduced to reach at least 40% thermal substitution with a mixture of RDF (refuse derived fuels) and other alternative fuels.