Treatment of natural gas; treatment of waste services; recycling of waste and trash; air purification and treatment of water; energy production; production of energy from geothermal energy.

'air':14 'energi':20,24,27 'gas':4 'geotherm':26 'natur':3 'product':21,22 'purif':15 'recycl':9 'servic':8 'trash':13 'treatment':1,5,17 'wast':7,11 'water':19

Scientific and technological services, namely research and development in the field of renewable energy; industrial analysis, industrial research and industrial design services in the field of renewable energy; quality control services in the field of renewable energy; design and development of computer hardware and software.

'analysi':16 'comput':42 'control':30 'design':21,38 'develop':8,40 'energi':14,28,37 'field':11,25,34 'hardwar':43 'industri':15,17,20 'name':5 'qualiti':29 'renew':13,27,36 'research':6,18 'scientif':1 'servic':4,22,31 'softwar':45 'technolog':3

Power plant and energy plant construction services; installation and repair services in relation to power supply installations; well drilling; mining extraction, oil and gas drilling; installation, repair and maintenance of geothermal installations.

'construct':6 'drill':19,25 'energi':4 'extract':21 'gas':24 'geotherm':31 'instal':8,17,26,32 'mainten':29 'mine':20 'oil':22 'plant':2,5 'power':1,15 'relat':13 'repair':10,27 'servic':7,11 'suppli':16 'well':18

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