Cement is used as a construction material in Sri Lanka. It is made with calcined lime and clay. Alumina, silica and iron oxide are the main substance of the clay. In Sri Lanka, the demand for cement is high in the building and construction sector. In the beginning, the establishment of the Kankasanthurai cement factory is the first cement factory in Sri Lanka. The purpose of this study is to examine the production process, its economic support, raw material availability, demand, process modification, optimization steps to implement the production process with minimal environmental impact and minimize the environmental pollution by the cement industry.