Manufacture of other non-metallic mineral products Standard Industrial Classification (SIC) codes of UK-based importers and exporters 23110 - Manufacture of flat glass (266) 23120 - Shaping and processing of flat glass (490) 23130 - Manufacture of hollow glass (95) 23140 - Manufacture of glass fibres (210) 23190 - Manufacture and processing of other glass, including technical glassware (486) 23200 - Manufacture of refractory products (140) 23310 - Manufacture of ceramic tiles and flags (178) 23320 - Manufacture of bricks, tiles and construction products, in baked clay (791) 23410 - Manufacture of ceramic household and ornamental articles (985) 23420 - Manufacture of ceramic sanitary fixtures (145) 23430 - Manufacture of ceramic insulators and insulating fittings (137) 23440 - Manufacture of other technical ceramic products (191) 23490 - Manufacture of other ceramic products n.e.c. (275) 23510 - Manufacture of cement (94) 23520 - Manufacture of lime and plaster (61) 23610 - Manufacture of concrete products for construction purposes (1151) 23620 - Manufacture of plaster products for construction purposes (437) 23630 - Manufacture of ready-mixed concrete (540) 23640 - Manufacture of mortars (40) 23650 - Manufacture of fibre cement (29) 23690 - Manufacture of other articles of concrete, plaster and cement (411) 23700 - Cutting, shaping and finishing of stone (1588) 23910 - Production of abrasive products (90) 23990 - Manufacture of other non-metallic mineral products n.e.c. (478)