Waste treatment (transformation); sorting of waste and recyclable raw material (transformation); waste, refuse and water treatment: biodegradation, physical treatment and chemical treatment; air purification services; refuse treatment, water treatment and waste treatment services; treatment of pollutants and treatment of water, and particularly waste water, industrial, residuary, residual, urban or agricultural water.

Evaluations, estimates and research in the fields of science and technology provided by engineers; research and development of new products for third parties; carrying out technical feasibility studies; scientific laboratory services; evaluations, estimations and research in the fields of science and technology rendered by engineers, research and development of new products for third parties, technical project studies, all these services being in connection with water, pollutant and waste treatment; development of new pollution control, water purification and waste processing processes; technical consultancy and surveying [engineers' services] in the fields of water, pollutant and waste treatment; innovation research for the development of products, equipment and solutions for the treatment of pollutants and water.