Mining in Maceió began in the 1970s with Salgema Indústrias Químicas S/A, later renamed Braskem. The extraction of rock salt, a mineral used in the production of caustic soda and PVC, was authorized by the government.
Mining in Maceió began in the 1970s with Salgema Indústrias Químicas S/A, later renamed Braskem. The extraction of rock salt, a mineral used in the production of caustic soda and PVC, was authorized by the government.