11 Apparatus and installations for the treatment, purification, biological purification and recycling of water, the sterilisation and regeneration of all liquids, and notably of drinking water and industrial water; filters and filtration and purification apparatus; apparatus and installations for filtering liquids and gases.
36 Financing services and financial sponsorship; insurance services; electronic funds transfers; information services, insurance, banking and financial consultancy; financial and monetary affairs, financial analysis; all these services being provided in the field of water treatment and filtering.
37 Construction, installation, maintenance and repair of apparatus and installations for the treatment, purification, recycling and regeneration of drinking water and industrial water; technical assistance, consultancy and information relating to water treatment and filtration.
40 Treatment of materials; treatment of waste water and industrial effluents, transformation of all chemicals; services provided by sewerage plants.
42 Professional consultancy and construction drafting, non business, in the field of the treatment and recycling of waste water and industrial effluents, and their discharge into the environment; audits and engineering relating to environmental protection; research relating to all chemicals, notably relating to substances, materials or equipment used during the separation process; research and development in the field of water purification, treatment techniques, filtration, sterilisation of all liquids, in particular water; laboratory services, notably relating to analysis of water and waste liquids; leasing of access time to a computer data base server centre.