Street cleaning; exterior cleaning of buildings; interior cleaning of buildings; cleaning and repair of boilers; cleaning of articles of clothing; cleaning of vehicles; cleaning of windows; cleaning of petrol, oil and grease deposits; cleaning of cesspits; pipeline and sewer cleaning; gully cleaning; industrial cleaning; hiring out of cleaning machinery; chemical cleaning; construction of environmental facilities; repair work, namely repairs on buildings, machinery, vehicles, electrical devices, air conditioning units and IT equipment; installation of environmental facilities; construction and repair of environmental facilities, namely refuse disposal facilities, waste disposal, waste water treatment, purification, incineration and drainage facilities as well as glass reprocessing facilities; cleaning of portable toilet cabins, portable toilet blocks and containers as well as the disposal of waste containers; collection of waste products, refuse and recyclable materials; removal of domestic, trade and industrial waste materials; removal of industrial liquid waste; removal of excrement; removal of oils and oily materials; removal of environmentally hazardous liquids and removal of environmentally hazardous solid materials; construction consultancy, construction planning; services of a building contractor; construction planning for waste disposal and waste water treatment facilities; air duct cleaning

Transportation and storage of waste products, refuse and recyclable materials; refuse transportation and storage; delivery and distribution of electrical energy, gas or water; transport of water supplies; transportation, packaging and storage of goods; hiring out of storage, waste and refuse containers; transportation of portable toilet cabins, portable toilet blocks and containers as well as blocks and waste containers

Reprocessing and conversion of waste materials, namely the recovery of valuable materials, namely, glass, metals, paper and chemicals; decontamination of hazardous materials; sorting of refuse and recyclable materials; refuse and waste recycling; disposal of waste materials, namely the treatment of waste materials using chemical, biological, physical and thermal processes; disposal of portable toilet cabins, portable toilet blocks and containers as well as the disposal of waste containers by means of destruction and incineration; incineration and destruction of refuse and waste materials; air purification; material processing, namely waste material; water treatment; waste water treatment; production of energy; sandblasting

Environmental protection compliance consultancy; determination of concentration levels of pollutants; determination of emissions and immissions levels in the environment; environmental impact assessments; technical consultancy, namely the determination of emissions and immissions and environmental impact assessments; technical project planning, namely architectural design and technical design; architect's services; construction drafting services; engineering; biologist's, chemist's and physicist's services; technical planning for environmental facilities, namely architectural and technical design; development, planning, projection, execution of and consultancy for authorization procedures for facilities, equipment and processes regarding chemical, physical, thermal, biological treatment and processing and/or dumping of water, waste water, waste materials and refuse; conducting chemical, analytical and toxicological investigations of all kinds for others; scientific and technical analysis and evaluation of soils, waters, gases and waste products; environmental protection compliance consultancy, technical planning and development of environmental protection processes and facilities in the field of environmental hygiene and energy supplies; technical project planning in the nature of architectural and technical design of environmental facilities, namely refuse disposal sites, purification, incineration and drainage facilities