Underground mining equipment, namely, longwall shearers, continuous miners, bolter miners, shuttle cars, haulers, including battery haulers, scoops, load haul dump vehicles, mining trucks, armored face conveyors, mobile roof bolters, mobile multi bolters, and powered roof support control systems.

Building materials predominantly of metal or construction elements predominantly of metal including frames, framework, plates, studs, rails, supports, jointers, edges, braces, brackets and reinforcements; parts and fittings for the foregoing; small items of metal hardware nails and screws and other fixings; metal connecting components for plasterboard

Building materials predominantly non-metallic; plasterboard or drywall goods; building panels, sheets; coverings, liners and planks; consumables in this class for use with plasterboard or drywall; building components predominantly non-metallic including clips, fasteners, securements, reinforcements, formers, edgers strips and trim; non-metallic connecting components for plasterboard; plaster including skim coat; fillings or surface material in dry or premixed form; parts, fittings and additives in this class for the foregoing

Telecommunication services including statewide and national telephone exchange facilities which are provided with reduced incoming call charges