Installation, maintenance and repair of air condition control systems; installation of building management facilities for air conditioning and heating source; providing information relating to construction; construction, installation and repair of air conditioning installations, heat source machines, and contract installations for the purpose of optimization in the field of energy conservation, carbon dioxide reduction, electricity conservation and cost reduction, and providing advice and information relating thereto; repair or maintenance of remote monitoring and controlling machines and apparatus for air conditioning installations, cooling installations, and heating sources machines, and providing advice and information relating thereto; consultancy services relating to construction; consultancy services relating to installation of air conditioning installations; operation and maintenance of building equipment, and providing advice and information relating thereto; repair or maintenance of control machines and apparatus for air conditioning installations, and providing advice and information relating thereto; repair or maintenance of air conditioning installations; repair or maintenance of air conditioning apparatus, and providing advice and information relating thereto; repair or maintenance of power distribution or control machines and apparatus, and providing advice and information relating thereto; repair or maintenance of measuring machines and instruments for air condition monitoring and air condition control of buildings, and providing advice and information relating thereto; repair or maintenance of measuring machines and instruments, and providing advice and information relating thereto; repair or maintenance of electronic machines and apparatus; repair or maintenance of telecommunication machines and apparatus.

Audit, evaluation and analysis of energy consumption of buildings; remote monitoring of computer systems for management of consumption and efficiency of power and energy; programming and monitoring of computer systems in electricity, gas or heat supply installations and in facilities with a connection line to the communication network; monitoring, design, development and maintenance of computer systems; research, study and testing services in the field of power generation, electric power transmission, electric power distribution and electrical utilization, and providing information relating to aforesaid services; architectural design; design of electrical equipment or telecommunication equipment; design of air conditioners and air conditioning installations and providing advice relating thereto; electrical engineering services; surveying; design of machines, apparatus, instruments [including their parts] or systems composed of such machines, apparatus and instruments; design of machines, apparatus, instruments or equipment for energy-saving; design and maintenance of computer software; design and maintenance of computer software for controlling, monitoring and managing gas distribution (supply) and heat distribution (supply); design and maintenance of computer software for transferring, storing, saving, transforming and displaying data and information relating to gas distribution (supply) and heat distribution (supply); consultancy in the field of energy and power usage, and efficiency in the use of power and energy; consultancy in the field of energy-saving; providing information in the field of energy-saving; testing and research on energy-saving; providing computer software for controlling, monitoring and managing gas distribution (supply) and heat distribution (supply); providing computer software for transferring, storing, saving, transforming and displaying data and information relating to gas distribution (supply) and heat distribution (supply); providing computer program for remote communication network; rental of computer systems for controlling, monitoring and managing gas distribution (supply) and heat distribution (supply); rental of computer systems for transferring, storing, saving, transforming and displaying data and information relating to gas distribution (supply) and heat distribution (supply); remote monitoring of the operation of air conditioning installations, heating installations, cooling installations and plumbing sanitary installations of buildings for better and more efficient maintenance of such installations of building.

Telecommunication services; provision of telecommunication access and links to computer databases, the Internet and the world wide web; electronic transmission of data, messages and images; electronic transmission of data via the Internet; electronic mail services; electronic messaging; information, advisory and consultancy services relating to all of the aforesaid.

Design, development, hosting, updating and maintenance of web sites and web pages; providing access to data via the Internet; providing access via computer and communication networks, including the Internet, to text, electronic documents, databases, graphics and audio visual information; assistance, advisory, consultancy and information services relating to the Internet; information, advisory and consultancy services relating to all the aforesaid; consultancy, design, analysis and development services all relating to computer software and computer programs; updating and maintenance of computer software, computer software packages, computer programs and computer program packages; rental of computer software, computer software packages, computer programs and computer program packages.

Installation, maintenance and repair of air condition control systems; installation of building management facilities for air conditioning and heating source; providing information relating to construction; construction, installation and repair of air conditioning installations, heat source machines, and contract installations for the purpose of optimization in the field of energy conservation, carbon dioxide reduction, electricity conservation and cost reduction, and providing advice and information relating thereto; repair or maintenance of remote monitoring and controlling machines and apparatus for air conditioning installations, cooling installations, and heating sources machines, and providing advice and information relating thereto; consultancy services relating to construction; consultancy services relating to installation of air conditioning installations; operation and maintenance of building equipment, and providing advice and information relating thereto; repair or maintenance of control machines and apparatus for air conditioning installations, and providing advice and information relating thereto; repair or maintenance of air conditioning installations; repair or maintenance of air conditioning apparatus, and providing advice and information relating thereto; repair or maintenance of power distribution or control machines and apparatus, and providing advice and information relating thereto; repair or maintenance of measuring machines and instruments for air condition monitoring and air condition control of buildings, and providing advice and information relating thereto; repair or maintenance of measuring machines and instruments, and providing advice and information relating thereto; repair or maintenance of electronic machines and apparatus; repair or maintenance of telecommunication machines and apparatus.

Audit, evaluation and analysis of energy consumption of buildings; remote monitoring of computer systems for management of consumption and efficiency of power and energy; programming and monitoring of computer systems in electricity, gas or heat supply installations and in facilities with a connection line to the communication network; monitoring, design, development and maintenance of computer systems; research, study and testing services in the field of power generation, electric power transmission, electric power distribution and electrical utilization, and providing information relating to aforesaid services; architectural design; design of electrical equipment or telecommunication equipment; design of air conditioners and air conditioning installations and providing advice relating thereto; electrical engineering services; surveying; design of machines, apparatus, instruments [including their parts] or systems composed of such machines, apparatus and instruments; design of machines, apparatus, instruments or equipment for energy-saving; design and maintenance of computer software; design and maintenance of computer software for controlling, monitoring and managing gas distribution (supply) and heat distribution (supply); design and maintenance of computer software for transferring, storing, saving, transforming and displaying data and information relating to gas distribution (supply) and heat distribution (supply); consultancy in the field of energy and power usage, and efficiency in the use of power and energy; consultancy in the field of energy-saving; providing information in the field of energy-saving; testing and research on energy-saving; providing computer software for controlling, monitoring and managing gas distribution (supply) and heat distribution (supply); providing computer software for transferring, storing, saving, transforming and displaying data and information relating to gas distribution (supply) and heat distribution (supply); providing computer program for remote communication network; rental of computer systems for controlling, monitoring and managing gas distribution (supply) and heat distribution (supply); rental of computer systems for transferring, storing, saving, transforming and displaying data and information relating to gas distribution (supply) and heat distribution (supply); remote monitoring of the operation of air conditioning installations, heating installations, cooling installations and plumbing sanitary installations of buildings for better and more efficient maintenance of such installations of building.