Water recycling and desalination services; recycling of waste and trash; recycling of hazardous substances; recycling of residues and waste; processing of chemicals; processing and transforming of energy; consultancy in the field of energy generation; production of energy; production and processing of fuels and of other sources of energy; production of electrical energy from renewable sources; clean energy production; technical consultancy in the field of production of solar energy; conversion of waste energy into electricity [energy recycling services]; water treatment and purification; production of energy by power plants; air purification and deodorizing; air purification; incineration of waste and trash; soil, waste or water treatment services [environmental remediation services]; incineration and destruction of waste; filtration of waste water and sewage; treatment of waste water and sewage; treatment of waste water; treatment of captured landfill gas; treatment of waste materials relating to environmental pollution control; consultancy regarding treatment of waste materials relating to environmental pollution control; steel fabrication and finishing services.