Water storage tanks of plastic; tanks not of metal or masonry, for water treatment; containers, not of metal, for storage or transport; holders of non-metallic materials for liquid gas tanks; liquid storage tanks (containers) made of non-metallic materials; non-metallic water storage tanks (containers); tanks made principally of plastics materials and for use in industry.

Installation, maintenance and repair of apparatus, installations and systems for the treatment, storage and distribution of stormwater, rainwater and waste water; installation, maintenance and repair of apparatus and systems for the treatment and distribution of water; construction of storage tanks and pre-fabricated structures; installation, maintenance and repair of water collection and storage systems; construction of water treatment, collection and storage systems; excavation and installation of water and stormwater treatment, drainage, distribution and storage systems; installation of water pipelines; advisory and consultancy services relating to all the aforesaid services; none of the aforementioned services being in relation to water heaters or gas boilers.

Scientific and technological services and research and design relating thereto; industrial analysis, industrial research and industrial design services; industrial engineering design services; civil engineering design services relating to water irrigation, water purification and storage plants, water supply systems; environmental conservation services; pollution emissions testing; water analysis and quality monitoring; water sampling and analysis services to assess pollution levels; scientific analysis, testing, and monitoring for environmental conservation purposes; environmental assessment services; design services for stormwater management systems and filtration devices; technical design and planning of water purification plants, water treatment and storage systems; design of pipelines for water and waste water; services for the design of water drainage and storage systems and pipelines; advisory and consultancy services relating to all the aforesaid services.