11
Biogas scrubbing apparatus; Gas recovery apparatus; Gas purification installations; Gas heat generators; Biogas stoves; Installations for the collection of gases; Adsorption apparatus for generating gas; Industrial treatment apparatus and installations; Chemical processing equipment; Heat generating apparatus; Pressure relief apparatus for use with gas installations; Regulating apparatus for gas installations; Regulating and safety accessories for water and gas installations; Evaporators
37
Repair of biogas plants and machines; Plant maintenance; Installation of industrial machinery; Construction of chemical plants; Installation of plant; Installation of high tensile structures; Construction of structures for the storage of natural gas
40
Generation of biogas; Treatment of captured biogas; Gas production services; Scrubbing of captured biogas; Energy production; Waste and/or water treatment services; Treatment [recycling] of waste; Treatment of waste materials; Treatment of industrial waste to sequester carbon; Consultancy relating to the recycling of waste and trash; Treatment of animal waste; Information, advice and consultancy services relating to the recycling of waste and trash; Waste disposal [treatment of waste]; Production of renewable green energy; Clean energy production; Consultancy services relating to the generation of electrical power; Generation of power; Production of electrical power from renewable sources; Production of energy by power plants; Generation of electrical power using carbon sequestration; Electricity generating
42
Designing of electrical systems; Professional consultancy relating to technology; Engineering design and consultancy; Civil engineering planning services; Construction drafting; Engineering drawing; Advisory services relating to design engineering; Advisory services relating to industrial engineering; Engineering consultancy services; Preparation of engineering reports; Engineering feasibility studies; Preparation of technical reports; Engineering services for the design of structures; Engineering services for the gas industry; Engineering services in the field of energy technology; Engineering services in the field of electrical power and natural gas production; Engineering services in the field of environmental technology; Engineering consultancy relating to design; Engineering consultancy relating to testing; Technical consulting in the field of environmental engineering; Technical engineering; Engineering project management services; Environmental engineering services; Estimations in the field of technology provided by engineers