The overall project cost is put at $2,500 million, and covers the possible construction of group 1 plants for soda ash, fertilizer-grade phosphoric acid and potassium sulphate by 1995; group 2 plants for magnesium metal, magnesium oxide, technical grade phosphoric acid, dicalcium phosphate and sodium tripolyphosphate; and group 3 plants for potassium nitrate, elemental chlorine, caustic soda,
caustic potash, chlorine derivatives, bromine and bromine derivatives before the end of the century.