The study was conducted with objective that find the optimum value of the gypsum processingrnparameters for the production of improved quality chalk using locally availablernraw materials. Gypsum rocks with size less than 20cm in diameter and 30kg total samplesrnwere collected from Educational Material Production and Distribution Enterprise center;rnthe collected samples were taken and the laboratory test processed. Experiments have beenrnconducted with varying influential process parameters to got different responses. Secondrndegree polynomial models for the responses as a function of the independent variables wererngenerated and optimum conditions were determined using Central Composite Face CenteredrnDesign of Response Surface Methodology.The data were analyzed to determine optimumrnconditions for testing responses parameters particle size (90,70 and 45 m), calcinationsrntemperature (135, 140 and 145 oC) and moisture content (5, 6, 7%); for testing thernresponses bulk density((1.121 - 1.201g/cm3) and breaking strength (10 - 20N/cm). The optimumrnvalue 1.1445g/cm3 bulk density of and 13.85N/cm breaking strength were achievedrnat the optimum process parameters 85.55 m particle size, 137 oC calcinations temperaturernand 6.25% moisture content. Depending on the optimum conditions determined experimentallyrnand the existing condition of the plant, chalk production plant process flowrnsheet has been proposed and the equipments have been designed in which case most of thernequipments can be easily fabricated locally. Finally, the plant is financially evaluated andrnits initial investment cost will be recovered fully within only three years, which makes thernplant viable.rnKey words: Gypsum, Plaster of Paris, Response SurfaceMethodology, Chalk