The Charles Machine Works, Inc. manufactures and distributes construction equipment and parts. It offers trenchers, vibratory plows, pneumatic piercing tools, backhoes, electronic guidance, and locating tools, horizontal directional drilling systems, and tandem-axle trailers. It also offers interchangeable and utility attachments, loaders, fluid management equipment, rod pushers, pipe busters, and replacement parts. The company was founded by Carl Frederick Malzahnin 1902 and is headquartered in Perry, OK.

Earth Tool Co. LLC develops, designs and manufactures construction products. Its products include piercing tools, pipe bursting, pipe ramming, hydro guide winches, HDD tooling, lining systems and rock hammers. The company was founded in 1989 and is headquartered in Lake Mills, WI.

Consolidated Edison Co. of New York, Inc. engages in the distribution of electric power services. It operates through the following segments: Electric, Gas, and Steam. The company was founded in 1884 and is headquartered in New York, NY.

Tric Tools, Inc. is a private company headquartered in Alameda, CA, that manufactures and wholesales sewer lateral pipe bursting system.\nThe company says this about itself: TRIC Tools is an infrastructure and environmental solutions company that provides proprietary technology, tools and services for trenchless rehabilitation and replacement of sewer, water, gas and other difficult to access underground pipes. TRIC holds four U.S. and International patents for its device and method of trenchless pipe replacement. In 1997, TRIC established the standards and created the industry for lateral replacement (home's sewer line) using its pipe-bursting technology. TRIC continues to re- engineer its technology for new markets, expanding upon its domestic sewer lateral tools with the introduction of innovative solutions for mainline sewer, drinking water and gas distribution pipelines.

KOBUS Services Ltd is a UK based organisation that designs, manufactures and sells innovative tools for the utilities industry on a national and international scale and is home to the award winning KOBUS Pipe Puller. The KOBUS Pipe Puller a revolutionary system designed to remove water supply pipes from the ground and replace them with a new pipe following the exact bore path of the original pipe - all in one single action.

Datang Huayin Electric Power Co., Ltd. engages in electricity production. It focuses on thermal power, water and electricity, wind power, and landfill gas power generation. The company was founded on March 22, 1993 and is headquartered in Changsha City, China.

China Petroleum Pipeline Bureau Engineering Corp. is a Chinese company ultimately controlled by the Government of China. The firm operates as holding company through its subsidiaries provides pipeline construction services.

British Gas is an energy and home services provider in the United Kingdom. It is the trading name of British Gas Services Limited and British Gas New Heating Limited, both subsidiaries of Centrica. Serving around twelve million homes in the United Kingdom, British Gas is the biggest energy supplier in the country, and is considered one of the Big Six dominating the gas and electricity market in the United Kingdom.

Forward Civil Explosion Co., Ltd., established on 2008-06-16, The scope of business includes the production of civilian explosives,Sales(Operate with a valid license);Engaged in the import and export of goods and technology.

Nanjing Iron & Steel Co., Ltd. engages in the production of metal products. Its business activities include ore mining, coking, sintering, iron making, steel making, and steel rolling processes. Its products include metal sheets, rods, wires, strip steel, and deep processed metal products. The company was founded in 1958 and is headquartered in Nanjing, China.

Zhejiang First Hydropower Construction Group Co., Ltd., established on 2000-05-18, Business scope includes water conservancy and hydropower projects,Port and Channel Engineering,Municipal public works,Road construction,bridge engineering,foundation engineering,construction work,mine engineering,tunnel Engineering,Environmental Engineering,Fabrication and installation of hydraulic metal structures,Mechanical and Electrical Installation Engineering,River and lake improvement project,Landscaping project contracting,construction,Blasting and Demolition Engineering Design,Evaluate,supervision,construction;Water Resources and Hydropower Engineering,Geological disaster management project planning,survey,design,construction,project consultancy,water resource planning,Evaluate,Demonstration service,Flood and Environmental Impact Assessment of Construction Projects,Environmental Protection Engineering Design,Preparation of water and soil conservation plan,Safety Appraisal of Water Storage Engineering,Engineering cost consultation,engineering survey,Basic processing,Testing service,Construction material testing service,Water conservancy and hydropower project property management services,Contract overseas water conservancy and hydropower industry projects,Port and Channel Engineering,Municipal public works,Road construction,bridge engineering,construction work,Mining engineering and domestic international bidding projects,Equipment required for the above overseas projects,export of materials;Dispatch labor personnel required for the implementation of the above-mentioned overseas projects,Machinery and Equipment Leasing,Industrial Investment,Electrical Equipment,Sales of machinery and equipment,production of building materials,Sales.(Items subject to approval by law,Business activities can only be carried out after approval by relevant departments)

Xi'an Thermal Engineering Research Institute Co., Ltd., established on 2001-12-06, Business scope includes thermal power engineering installations,Industrial Process Automatic Control System,Chemical and Materials Engineering,Thermal metrology test,Environmental protection and energy saving and water saving,Technology research and development in the field of new energy power generation,technology transfer,Technical Consulting and Services;Technical Training(System internal staff only);thermal power design;Project contracting and complete equipment;Products in the above related technical fields,Development of equipment and devices,promotion and production,Sales.(Items subject to approval by law,Business activities can only be carried out after approval by relevant departments)

Shanxi Lanhaixin Technology Co., Ltd., established on 2006-04-10, Business scope includes computer software,hardware development;Computer system integration and integrated wiring;Computer technology consulting and technical services;food,metallic material,building materials(wood free),Computer hardware and software,Wire and Cable,communication device,Office supplies,General Machinery,Sales of electrical products;Mining machinery and equipment,Electrical Equipment,Design of hydraulic equipment,Installation and technical consultation;Fire Engineering. (Items subject to approval by law,Business activities can only be carried out after approval by relevant departments)***

Xiangtan Hongyuan Electronic Technology Co., Ltd., established on 2009-08-06, The scope of business includes research on non-destructive testing instruments for boiler steel tube oxides,to develop,Sales and related services;Duct Endoscopy,pipeline inspection,Heating Surface Tube Inspection,Relevant technical services for foreign body cleaning;valve,Pump sales and repairs;Installation of electrical equipment,repair,debugging;Energy saving and environmental protection,Anti-wear and anti-corrosion technical services;Sales of electromechanical equipment,Installation and Maintenance.(Items subject to approval by law,Business activities can only be carried out after approval by relevant departments)

Wuhan Dayu Valve Co. Ltd. is a Chinese private company located in Wuhan. The firm manufactures and sells temperature and pressure valves.

The manufacture and supply of polythylene pipes and fittings, mechanical pipejointing systems, valves, rubber gaskets and engine;

Anhui Zezhong Safety Technology Co., Ltd., established on 2011-08-23, Business scope includes public safety emergency equipment,Fire Products,Instrumentation,Computer hardware and software,electronic product,integrated circuit,communication device,special vehicle(Except special license)the design of,to develop,Sales;Design of unmanned aerial vehicle systems and products,to develop,Production(limited branch),Sales,Serve;IoT system and product design,to develop,Production(limited branch),Sales,Serve;Production of public safety and emergency equipment(limited branch);Computer Network and Application Engineering;Information system integration,Electronic Systems Engineering,Building Intelligent Engineering,Industrial Safety and Fire Engineering Design,Technical consultation and installation,Design and installation of safety protection engineering and planning of information system,design,consult;Self-operated and agent import and export business of various commodities and technologies(Except for those restricted or prohibited by the state);Disinfection products(In addition to dangerous goods)the design of,manufacture(limited branch),Sales.(Items subject to approval by law,Business activities can only be carried out after approval by relevant departments)