A calcium fluoride manufacturing plant with a production capacity of 46.000 tons/year is planned to be established in 2029 on Sukomulyo Highway, Roomo Village, Manyar District, Gresik Regency, East Java Province.The area of the plant is estimated at 6 Ha. Calcium fluoride is produced using fluorosilicic acid (H2SiF6), ammonium hydroxide (NH4OH), and calcium carbonate (CaCO3) as raw materials in…