Class 039
Transportation & Storage Services
Water collection, storage and supply services
Class 040
Treatment & Processing of Materials Services
Water and waste water treatment; water disinfection and filtration; sewerage treatment; desalination of sea water
Class 042
Computer & Software Services & Scientific Services
Scientific and industrial research; design of water supply and water treatment plants; water resource planning and management services in this class; performance monitoring and quality control services; electrical or electronic control of systems or processes; water quality testing and monitoring services; computer programming and computer software design