37 Engineering, procurement, construction and installation of renewable energy generation equipment; installation of gas fired energy generation equipment; Plant construction, maintenance and construction project management services for businesses in the energy production and transmission sector; Natural gas management and sales, Engineering design and implementation of technologies for processing, purification, compression and transport of natural gas; Engineering design and implementation of technologies for wind and solar energy farms and parks; Engineering design and implementation of electrical power distribution and control facilities and systems; Design and construction services for energy production in oil and gas fields; Engineering design and implementation of water management and water treatment projects; Planning and execution of mining projects, performing geophysical and geochemical analysis of mineral deposits in mining operations; Conducting environmental impact assessments and economic, technical, environmental, market research and viability studies of energy generation and mining projects; Construction management services; Engineering, procurement, construction, operation, maintenance of waste-to-energy production facilities