Apparatus for water supply, water treatment, water purification; apparatus for oxygenation, aeration and biological treatment of a water; heat transfer apparatus; mass transfer apparatus; apparatus for mixing single phase, dual phase and multi-phase mixtures; apparatus for chemical agitation; apparatus for chemical mixing; apparatus for accelerating chemical reactions; apparatus for use in mineral processing, flotation, hydrometallurgy; effluent treatment apparatus; apparatus for formation and dispersion of gas bubbles in a predominantly liquid phase; apparatus for formation and dispersion liquid particles in a predominantly gas phase; apparatus for gas scrubbing; apparatus for the injection, dissolution, stripping of oxygen or any other gas or gasses into or from a predominantly liquid phase

Mineral processing services and rental, installation, maintenance and repair of mineral processing equipment; hydrometallurgy services and rental, installation, maintenance and repair of hydrometallurgy equipment; waste water treatment services and rental installation, maintenance and repair of waste water treatment equipment; water treatment services and rental installation, maintenance and repair of water treatment equipment; advice, information and consultancy service relating to all of the aforesaid services