Industrial Classification By SSIC (2020) Section C : MANUFACTURE OF BASIC METALS 24 : MANUFACTURE OF BASIC METALS 24 : MANUFACTURE OF BASIC METALS 241 : MANUFACTURE OF BASIC IRON AND STEEL 2410 : Manufacture of Basic Iron and Steel 24101 : Iron and steel rolling mills 24102 : Manufacture of ferrous metal alloys 24109 : Manufacture of basic iron and steel n.e.c. (including smelting) 242 : MANUFACTURE OF BASIC PRECIOUS AND NON-FERROUS METALS 2420 : Manufacture of Basic Precious and Non-Ferrous Metals 24201 : Tin smelting 24202 : Manufacture of non-ferrous metal alloys 24209 : Manufacture of basic precious and non-ferrous metals n.e.c. 243 : CASTING OF METALS 2431 : Casting of Iron and Steel 24310 : Iron and steel foundries 2432 : Casting of Non-Ferrous Metals 24320 : Non-ferrous metal foundries