Silicon; silica fume used as an additive for general industrial use especially in the field of construction; strontium; silica-based goods as cement substitutes and additives to enhance the properties of fresh or hardened concrete, namely, silica gel, silica powder and silica sol; carbon black for industrial purposes; inoculants, namely, ferrosilicon-based foundry alloys for general industrial use especially in the field of construction

Common metals and alloys; building materials of metal, namely, rebar, wire mesh, corner chairs in the nature of a metal structural joint connector, foundations in the nature of metal components for building foundations, tie bars for use as fasteners in road construction, tie wire anchors, belts of metal for handling loads, seals, expansion joints, cavity caps, scaffolding, shutters, railings, windows, doors; metal building elements, namely, supports, pillars, wall panels; transportable buildings of metal; metallic materials for railway tracks; non-electric cables and metal wires; metal tubes; metal safes; hard metal strong boxes

Foundry machinery, namely, aluminum smelters, molding machinery, gravity smelters and welders; mining equipment, specifically, draglines, shovels, excavators, bucket wheels, scrapers, bulldozers, road headers, brushes, excavators, loaders, compactors, earthmoving machines; machine coupling and transmission components other than for land vehicles

Silicon quartz, quartz, rock crystal, cement; building elements of concrete, cement or silicon based materials, namely, block, bricks, panels, slabs, supports, pillars, wall panels; building materials, not of metal, namely, foundations in the nature of drilled and grouted pile foundations, expansion joints, cavity caps in the nature of a cover for concrete blocks to prevent mortar infiltration, shutters, railings, doors, windows, scaffolding, seals, corner chairs in the nature of a non-metal structural joint connector

Construction services, namely, planning, layout and construction of buildings; mining services, namely, mining extraction; rental of machinery for use in mining extraction; construction of mine workings and installations; quarrying

Packaging and warehousing of metals and ferroalloys

Treatment of materials and ferroalloys for general industrial use especially in the field of construction, namely, the addition of additives to molten metals; Metallurgical processing of melted iron; metal tempering; processing and treatment of bauxite, alumina, aluminum and silicon oxide; grinding and polishing of bauxite, alumina, aluminum and silicon oxide for the packaging, automobile, aviation, marine, building, machinery, sheet-metal, electronics, household appurtenance, decorative, sports and leisure, and kitchen equipment industries; smelting, namely, extracting base metals from their ores; and founding of metals

Engineering services