Gas scrubbing apparatus; boilers, other than parts of machines; water purification installations; water distribution installations; purification installations for sewage; drying apparatus; chromatography apparatus for industrial purposes; bioreactors for use in the treatment of waste; bioreactors for use in the treatment of wastewater; reverse osmosis membrane filters for water treatment; membrane filtration units for water treatment apparatus; aquarium filtration apparatus; water sterilizers; water purifying apparatus and machines; desalination plants; water filtering apparatus; filters for water filtering apparatus; membranes for water filtering apparatus; heat exchangers, other than parts of machines; water softening apparatus and installations; air filtering installations; air deodorizing apparatus; air-conditioning apparatus; air-conditioning installations; ultraviolet ray lamps, not for medical purposes; reverse osmosis units; membranes for reverse osmosis units; filters for drinking water; heating and cooling apparatus for dispensing hot and cold beverages; fans [parts of air-conditioning installations; Septic tanks for industrial purposes; sewage disposal plants; water purifying apparatus for household purposes; wastewater treatment tanks for household purposes; water purifiers for household purposes; industrial apparatus for purifying water; air filters for industrial installations; ventilation [air-conditioning] installations for buildings; air purifying units for commercial use; ultraviolet sterilizers for water treatment; wastewater treatment apparatus; desalination units; reverse osmosis water purification units; wastewater treatment tanks for industrial purposes; Chemical Injection apparatus for Cooling Water treatment processes; Chemical Injection Apparatus for Commercial Water Purification Equipment; Chemical Injection Apparatus for Water Pollution Prevention Equipment; Chemical injection apparatus for commercial waste incineration systems; Emergency portable water purification device and equipment; water or wastewater treatment systems or apparatus equipped with functions to collect and store measurement data such as operational status and energy consumption, and transmit this data wirelessly to control panels and databases; pure water or ultra-pure water manufacturing systems or apparatus equipped with functions to collect and store measurement data such as operational status and energy consumption, and transmit this data wirelessly to control panels and databases; Filter units and filters for machines used in manufacturing processes; Fan filter unit applied to semiconductor manufacturing equipment, air filters and air filter units; air purifying units and equipment; filters for cleaning air [parts of air cleaning machines or installations]; Filters for removing airborne chemicals in cleanroom or industrial manufacturing facilities; Air filters and air filter units.

Boiler cleaning and repair; installation and repair of air-conditioning apparatus; Installation and repair of air-conditioning apparatus; construction; building construction supervision; rustproofing; factory construction; machinery installation, maintenance and repair; pipeline construction and maintenance; plumbing; pump repair; freezing equipment installation and repair; providing construction information; providing construction information; providing information relating to repairs; rebuilding machines that have been worn or partially destroyed; swimming-pool maintenance; construction consultancy; installation of utilities in construction sites; installation, repair and maintenance of clean room facilities and equipment; installation of environmental control systems for clean rooms; on-site construction supervision; maintenance of septic systems; advisory services relating to pipe laying; installation, maintenance and repair of boiler systems; repair or maintenance of boilers and providing information relating thereto; pump repair or maintenance; pressure washing services; installation, maintenance and repair of sewerage systems; repair or maintenance of chemical plants and providing information relating thereto; repair or maintenance of chemical processing machines and apparatus and providing information relating thereto; installation, maintenance and repair of ventilating apparatus; installation of environmental control systems; machinery installation; installation, maintenance and repair of water supply apparatus; installation, maintenance and repair of air purifying apparatus; installation of air-conditioning control systems; air-conditioning apparatus washing services; consultancy relating to building construction supervision; providing information relating to building renovation; repair or maintenance of optical machines and instruments and providing information relating thereto; provision of construction information relating to public works; installation of industrial machinery; repair of industrial waste treatment machines; repair or maintenance of testing machines and instruments; repair or maintenance of machines and systems for manufacturing integrated circuits; providing information relating to the repair or maintenance of machines and systems for manufacturing integrated circuits; installation of energy-saving apparatus; repair or maintenance of water purifying apparatus and providing information relating thereto; repair or maintenance of water pollution control equipment and providing information relating thereto; installation of water pipes; repair or maintenance of measuring and testing machines and providing information relating thereto; repair or maintenance of telecommunication machines and apparatus and providing information relating thereto; repair or maintenance of electronic machines and apparatus and providing information relating thereto; construction and maintenance services relating to civil engineering; construction of roads, sewers and water supply systems; repair or maintenance of waste compacting machines and apparatus and providing information relating thereto; repair or maintenance of waste crushing machines and apparatus and providing information relating thereto; advisory services relating to the installation of plumbing; advisory services relating to the maintenance of plumbing; repair or maintenance of power distribution or control machines and apparatus and providing information relating thereto; repair or maintenance of semi-conductor manufacturing machines and systems and providing information relating thereto; maintenance, repair and cleaning of apparatus and machinery for manufacturing semiconductors; repair or maintenance of laboratory apparatus and instruments and providing information relating thereto; repair and maintenance of refrigerating apparatus; Installation, maintenance and repair of manufacturing plants; Repair or maintenance of measuring and testing machines and providing information relating thereto; Monitoring the operational status of commercial waste incineration facilities via a remote monitoring system; Monitoring the operational status and treatment status of wastewater treatment facilities within buildings and factories via a remote monitoring system; Monitoring the operational status and treatment status of water treatment facilities within buildings and factories via a remote monitoring system; Monitoring the operational status of HVAC systems and plumbing and sanitation facilities in buildings via a remote monitoring system; installation, repair and maintenance of environmental control systems for clean rooms; Cleaning and maintenance of equipment or equipment parts used in creating, operating or maintaining clean room environments; cleaning and maintenance of equipment or equipment parts used in creating, operating or maintaining clean room environments; Consulting services for construction, installation, renovation, repair and maintenance of clean room facilities and equipment; Operational management of industrial wastewater treatment equipment; Operational management of industrial water purification equipment; Construction, repair and maintenance of buildings; Repair or maintenance of waste treatment equipment and provision of related information; Maintenance, repair and cleaning of apparatus and machinery for manufacturing semiconductors; Providing information relating to the maintenance of measuring and test equipment; construction, repair and maintenance of buildings; consulting services relating to the installation, maintenance or repair of machines and apparatus used in industrial field; Mechanical and physical cleaning of industrial plants; Industrial cleaning services, namely, services for cleaning machines, tools, jigs, used in manufacturing; providing information relating to the maintenance of test equipment; Providing information relating to the repair or maintenance of machines and systems for manufacturing integrated circuits; Maintenance, repair and cleaning of machines and systems for manufacturing integrated circuits; maintenance of water treatment apparatus; Providing information relating to the repair or maintenance of manufacturing plants; providing information relating to the repair or maintenance of manufacturing plants; installation, maintenance and repair of manufacturing plants; maintenance, repair and cleaning of apparatus and machinery for manufacturing electric equipment, medical equipment and precision equipment; Maintenance, repair and cleaning of apparatus and machinery for manufacturing electric equipment, medical equipment and precision equipment; Operational management of waste treatment equipment; Repair or maintenance of wastewater treatment equipment; Provision of information and consulting services regarding the repair, cleaning and maintenance of apparatus and equipment used in the manufacture of semiconductors, flat panel displays, electric equipment, medical equipment, or precision equipment; Providing information relating to the repair or maintenance of semi-conductor manufacturing machines and systems; Repair or maintenance of microbial fuel cells; Installation, maintenance and repair of air freshening apparatus; Installation, repair and maintenance of clean room facilities and equipment; Repair or maintenance and operational management of water purification equipment; Maintenance or operational management of water treatment facilities.

Air purification; air deodorising; water treating; metal treating; waste treatment [transformation]; destruction of waste and trash; incineration of waste and trash; recycling of waste and trash; upcycling [waste recycling]; sorting of waste and recyclable material [transformation]; carbon capture; production of renewable green energy; providing information relating to material treatment; decontamination of hazardous materials; rental of chemical processing machines and apparatus and providing information relating thereto; Application of coatings using chemical, mechanical, thermal or thermomechanical processes; application of thin films on the surfaces of objects by means of chemical, mechanical, thermal, thermomechanical, chemical vapor deposition, physical vapor deposition and vacuum deposition processes; Application of protective surface coatings to machines and tools; Coating and surface finishing of machines and tools; coating and surface finishing of machines and tools; application of protective surface coatings to machines and tools; treatment and coating of metal surfaces; waste water treatment services for industrial purposes; waste water treatment; providing information relating to water treating services; consultancy in the field of water treatment; rental of water purifying apparatus and providing information relating thereto; rental of water filtration units for commercial use; information, advice and consultancy services relating to the recycling of waste and trash; treatment of waste; rental of waste compacting machines and apparatus; rental of waste crushing machines and apparatus; recycling of chemicals; treatment of contaminated soil; Rental of chemical processing machines; Chemical cleaning for restoration of reverse osmosis membranes and other filtration membranes; Consulting in the field of restoration of reverse osmosis membranes and other filtration membranes; Cleaning and regeneration treatment of used filtration membrane; Water purification; water recycling and desalination services; water and/or wastewater treatment services; Contract-based regeneration treatment of industrial wastewater and sewage; Contract-based production and supply of industrial-grade pure and ultrapure water; consulting services in the field of water and wastewater treatment; Water treatment and providing information relating thereto; providing information relating to the rental of water purifying apparatus; rental of water filters; extraction of element or minerals contained in wastewater or sludge in water and wastewater treatment processes; extraction of elements or minerals contained in waste reduce; Processing and recycling of waste and consultancy relating thereto; treatment and coating of metal surfaces; Treatment of metal parts to prevent dirt adhesion and corrosion; rental of waste treatment equipment and provision of related information; Regeneration and reclamation of contaminants and deposits removed from the surfaces of machinery and equipment; Chemical cleaning of analytical equipment and other machinery, tools, jigs, parts, etc. used in the manufacturing process of flat panel displays, semiconductors, other electronic parts, and precision equipment; Chemical cleaning of flat panel displays, semiconductors, other electronic components, precision equipment manufacturing equipment, and their parts and accessories and provision of related information and consulting; Recycling and reprocessing of used materials and parts in the industrial field; Chemical cleaning of industrial plants; Cleaning and processing of precision parts, electrical components, and electronic components, and providing related information; Surface treatment of industrial machinery, tools, parts, etc.; Providing information and consulting regarding surface treatment of industrial machinery, tools, and their parts, etc.; Surface treatment of machines, jigs, parts, etc. for the manufacturing process of flat panel displays, semiconductors, precision parts, electrical parts, electronic parts, etc.; Surface treatment of metal and non-ferrous metal surfaces; Surface treatment of mechanical equipment, jigs, parts, etc. after cleaning by physical or chemical methods; metal coating; Surface modification and coating service of machines, equipment, devices, parts, tools and jigs used in clean room environment; Surface modification and coating of machines, equipment, devices, parts, tools and jigs used in manufacturing processes; Coating services for machinery, equipment, parts, tools and jigs; Recycling of waste, namely, regeneration and reclamation of contaminants and deposits removed from the surfaces of machinery, equipment, parts, tools or jigs; chemical treatment of boilers and boiler pipings; providing information, advisory and consultancy services relating to all the aforesaid services.

Chemical analysis services; bacteriological research; chemistry services; architectural consultancy; construction drafting; engineering; calibration [measuring]; quality control for others; biological research; consultancy in the field of energy-saving; scientific research in the field of environmental protection; providing scientific information, advice and consultancy relating to carbon offsetting; water analysis; energy auditing; software as a service [SaaS]; electronic data storage; platform as a service [PaaS]; research in the field of building construction; providing online non-downloadable computer software; energy performance testing of buildings; Engineering services in the field of energy technology; consultancy in the field of energy efficiency; design of machines, apparatus and instruments; testing and research services relating to machines, apparatus and instruments; planning and layout design services for cleanroom environments; monitoring of water quality; water quality control services; plant engineering; engineering services in the field of environmental technology; environmental testing and inspection services; testing and research services in the field of preventing pollution; scientific research in the field of renewable energy; chemical, biochemical, biological and bacteriological research and analysis; testing, inspection and research services in the fields of agriculture, livestock breeding and fisheries; Industrial research, testing and analysis services; testing, analysis and evaluation of the goods and services of others for the purpose of certification; design and development of testing and analysis methods; calibration of measuring instruments; calibration of analytical apparatus; calibration of analytical apparatus; analysis in the field of molecular biology; rental of measuring apparatus; rental of laboratory apparatus and instruments; Provision of online non-downloadable computer software for managing and viewing operational status monitoring data of commercial water purification equipment and devices; Provision of online non-downloadable computer software for managing and viewing operational status monitoring data of commercial wastewater treatment equipment and devices; Providing temporary use of online non-downloadable software for the prediction of chemical products dosage and usage in membrane filtration systems; Provision of online non-downloadable computer software for managing and viewing operational status monitoring data of commercial waste incineration equipment; Provision of online non-downloadable computer software for managing and viewing water treatment status monitoring data; Providing temporary use of online non-downloadable software for the calculation and control of dosing chemicals; Testing and evaluation of equipment, machinery, tools, and materials for cleanrooms, as well as providing related information and consulting services; Computer software design and development; Design of water purification facilities and water purification equipment; Design of wastewater treatment facilities and wastewater treatment equipment; Design and advisory services for manufacturing equipment (including parts and accessories) for flat panel displays, semiconductors, other electronic components, and precision machinery parts; software as a service (SAAS) services featuring software that allows users to receive reports, alerts, and notifications related to water purifying, wastewater treating, sludge treating, and purewater and ultra-purewater manufacturing processes; Analysis and evaluation of steam generated from boilers and consulting based on the results; Testing related to metal corrosion in cooling water systems and boiler water systems; Technical consulting services in the engineering field of cooling water systems and boiler water systems, namely testing, auditing, monitoring, simulating, and evaluating to optimize water treatment conditions in these systems; Platform as a Service(PAAS) featuring computer software platforms for simulating and monitoring scale and corrosion in cooling water systems and boiler water systems, and optimizing water treatment in these systems; Chemical analysis and the interpretation and evaluation of analysis results; Analysis services for chemical composition of liquids; Research on cleaning technologies and surface processing technologies for machinery and their parts; Testing related to the purification treatment of wastewater; Research, testing and analysis services in the industrial field; Sampling and analysis service for the purpose of checking contamination, deterioration, and performance of used filtration membranes; Consultancy in the field of energy-saving and water conservation; Diagnosis of water treatment conditions and advice based on the diagnostic results; Rental of measuring machinery and instruments; Testing or research related to civil engineering; technical consulting services in the field of heat exchanger and condenser engineering, namely, testing, auditing, monitoring, simulating and evaluating heat exchanger and condenser equipment to optimize performance of such equipment; platform as a service (PAAS) featuring computer software platforms for auditing, simulating, and monitoring the performance of heat exchangers and condensers to optimize heat transfer performance; software as a service (SAAS) services featuring software that allows users to receive reports, alerts, and notifications related to agricultural, horticultural, industrial and manufacturing processes; Evaluation tests related to the coagulation of wastewater and the dewaterability of sludge; Testing related to metal corrosion; Testing related to scale formation in cooling water systems and boiler water systems; software as a service (SAAS) services featuring software for use in controlling, monitoring, and testing water treatment systems for tracking and generating reports regarding the history of water condition and performance of water treatment systems; (SAAS) services featuring software for use in controlling, monitoring, and testing water treatment systems; (SAAS) services featuring software for providing support services in the field of water treatment equipment; Providing temporary use of online non-downloadable computer software for use in monitoring of industrial manufacturing processes or cleanroom; Remote diagnostic and monitoring services for the conditions of industrial manufacturing processes or cleanroom; Chemical analysis services; Engineering services in the field of environmental technology; Architectural consultancy services; Industrial research, testing and analysis services; Design and development of testing and analysis methods; Testing, analysis and evaluation of the goods and services of others for the purpose of certification; Monitoring of clean rooms; Research on materials, goods, and technologies related to the construction, management, and maintenance of clean room environments; Testing, inspection and research of semiconductor manufacturing equipment and other equipment used in cleanroom environment; Testing and evaluation services for machinery, equipment, instruments and tools used in the construction, operation or maintenance of cleanroom environments; Testing and certification services for clean room environmental management in accordance with the orders and specifications of authorized bodies; Research on cleaning, surface processing and maintenance technologies for machines, equipment, parts, tools and jigs used in the manufacturing process of semiconductors, integrated circuits and precision equipment; Research on cleaning, surface processing and modification of machinery, equipment, and parts used in manufacturing processes of semiconductor, electronic equipment, precision instruments and medical equipment; Software as a Service (SaaS) featuring software for predicting failures of water pipings and other pipings, analyzing lifespan, assessing the physical condition and repair needs of pipelines, and assisting in the development of repair plans; Software as a service (SaaS) services featuring software for evaluating the condition and assessing potential failure of infrastructure assets; Consulting services for the installation, replacement and maintenance of gas, water and wastewater pipelines; information, advisory and consultancy services relating to all the aforesaid services.

Testing and analysis of water quality; Monitoring of water consumption, water quality and water treatment conditions; Water quality control services; Continuous on-line monitoring and control of electrical conductivity, ion concentration, pH, oxidation-reduction potential, dissolved oxygen concentration, hardness, and metallic content of water, water quality and system performance in water and wastewater treatment process; Providing temporary use of non-downloadable computer software for the storage of historical data and information of water and wastewater treatment process, and for the management of process data related to water and wastewater treatment process; Research in the field of water and environmental protection; Consultancy in the field of energy saving and energy efficiency; Technical Design and planning of water and wastewater treatment system.