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winning van niet-metallische en niet-energetische delfstoffen zoals marmer, zand, grint, schist, zout, fosfaten, kaliumcarbonaat
extraction of minerals other than metalliferous and energy-producing minerals, such as marble, sand, gravel, shale, salt, phosphates and potash.
opsporing en winning van delfstoffen in dagbouwmijnen (b.v. winning van zand, kiezel, grind, marmer, graniet, leisteen, gips, kalk, bruinkool e.d.);
exploration for and extraction of minerals in surface workings (e.g. in the case of the production of sand, gravel, ballast, marble, granite, slate, gypsum, limestone and lignite);