Mathy Construction Co. is an American private company with domestic subsidiaries. The firm operates as asphalt paving contractor.

Xiamen Huate Highway Asphalt Technology Co., Ltd., established on 2010-02-09, Business scope includes and pavement structure,Road construction construction technology,road maintenance construction technology,asphalt mixture production process,Cement gravel stabilized soil production process,Technical research related to the production process of various asphalt and new pavement materials,design,Consulting and related new product development,Production(Only entrust other legally established market entities to engage in production and operation),Sales and technical service.

Research Institute of Highway Ministry of Transport is a company headquartered in China ultimately controlled by the Government of China that provides road, bridge and traffic engineering services.

Sichuan Yakang Expressway Co., Ltd., established on 2013-12-11, Business scope includes licensed projects:Highway Management and Maintenance;Various construction activities(Items subject to approval by law,Business activities can only be carried out after approval by relevant departments,The specific business items are subject to the approval documents or licenses of relevant departments)General project:car park service;property management;business management;Special equipment rental;Storage equipment rental service;Machinery and Equipment Leasing;Land use right lease;car wash service;car trailer,call for help,Wrecking service;Engineering Management Services(Except for projects subject to approval by law,Carry out business activities independently in accordance with the law with a business license).

Shaanxi Road and Bridge Group Co., Ltd., established on 1995-05-15, Business scope includes general items:Foreign contracted projects;Earthwork construction;Landscaping engineering construction;Maintenance of transportation facilities;Labor service(Does not include labor dispatch);Building Blocks Sales;Construction machinery and equipment rental;Machinery and Equipment Leasing;General machinery and equipment installation services;Transportation equipment rental service;Special equipment rental;Business Management Consulting;Engineering Management Services;Engineering cost consulting business;Engineering technical service(planning management,survey,design,Except supervision);Highway and Waterway Engineering Test and Inspection Service;Engineering and Technology Research and Experimental Development;Mechanical equipment research and development;New material technology research and development;General Cargo Warehousing Services(Does not contain hazardous chemicals and other items that require approval);Non-residential real estate leases.(Except for projects subject to approval by law,Carry out business activities independently in accordance with the law with a business license)licensed items:General contracting of housing construction and municipal infrastructure projects;Construction Engineering Construction;Construction engineering design;Construction Engineering Survey;Construction Project Supervision;Quality inspection of construction projects;construction professional work;Highway Management and Maintenance;Subgrade and pavement maintenance work;building demolition work(Except for blasting operations);Building Intelligent System Design;Construction labor subcontracting;Highway Engineering Supervision;Real estate development and management.(Items subject to approval by law,Business activities can only be carried out after approval by relevant departments,Specific business projects are subject to approval results)

Shandong Hi-Speed Group Co., Ltd. engages in the investment, construction, operation, and management of transportation infrastructure and intelligent transportation. Its business facilities also include comprehensive land development related to transportation infrastructures, logistics and relevant supporting services, as well as investment and management of financial assets. The company was founded on July 2, 1997 and is headquartered in Jinan, China.

Nanjing Jianyou Technology Co., Ltd., established on 2017-11-14, Business scope includes artificial intelligence product development,Production,Sales and Service.(Items subject to approval by law,Business activities can only be carried out after approval by relevant departments)

Shandong Dongbo Petrochemical Co., Ltd., established on 2000-12-19, Business scope includes licensed projects:Hazardous Chemical Production;Food additive production;Civil Aviation Fuel Testing Service.(Items subject to approval by law,Business activities can only be carried out after approval by relevant departments,The specific business items are subject to the approval documents or licenses of relevant departments)General project:Manufacturing of basic chemical raw materials(Manufacture of licensed chemicals free of hazardous chemicals);Petroleum Products Manufacturing(Free of Hazardous Chemicals);Petroleum product sales(Free of Hazardous Chemicals);Chemical product production(No licensed chemical products);Chemical product sales(No licensed chemical products);Manufacturing of daily chemical products;Sales of daily chemical products;synthetic material manufacturing(Free of Hazardous Chemicals);Synthetic Materials Sales;Food Additive Sales;Import and export;Technology Import and Export;internet data service.(Except for projects subject to approval by law,Carry out business activities independently in accordance with the law with a business license)

Qinghai Provincial Communications Construction Management Co., Ltd., established on 2020-01-07, Business scope includes high-speed(Including one level)And national and provincial trunk roads,the bridge,tunnel,local railway,Water conservancy project,waterway terminal,SF,Corridor passage,Municipal Engineering,Construction management of urban rail transit and its auxiliary infrastructure;Comprehensive transportation hub service facilities,Multimodal Transport Infrastructure,Construction management and operation of industries related to mineral resources and energy development and utilization;Construction Project Engineering Management Services,technical consulting;Engineering construction information technology service and consultation;Agency construction project construction management.(Among the above items, items subject to approval according to law,Business activities can only be carried out after approval by relevant departments)***

Guangxi Communications Investment Group Co., Ltd., established on 2008-07-18, Business scope includes transportation construction and operation;Maintenance of transportation facilities,maintain,TOLL;on real estate,financial industry,Logistics,resource development,transportation,energy,Municipal facilities,investment in construction,the construction,Management and International Economic and Technical Cooperation;Industrial and Civil Construction Engineering Consulting,construction,contract;Engineering Project Management;transportation technology development;design,make,acting,Publish various domestic advertisements;metallic material,building materials,decorative material,Equipment,auto parts,Daily necessities,office equipment,Sales of communication equipment;Machinery and Equipment Leasing.(Items subject to approval by law,Business activities can only be carried out after approval by relevant departments.)

PetroChina Co. Ltd. engages in the petroleum related products, services and activities. It operates through the following business segments: Exploration and Production; Refining and Chemicals; Marketing; Natural Gas and Pipeline; and Head Office and Other. The Exploration and Production segment involves exploration, development, production, and marketing of crude oil and natural gas. The Refining and Chemicals segment focuses on the refining of crude oil and petroleum products, production and marketing of primary petrochemical products, derivative petrochemical products, and other chemical products. The Marketing segment includes marketing of refined products and the trading business. The Natural Gas and Pipeline segment comprises transmission of natural gas, crude oil, and refined products and the sale of natural gas. The Head Office and Other segment relates to cash management and financing activities, the corporate center, research and development, and other business services supporting the operating business segments of the Group. The company was founded on November 5, 1999 and is headquartered in Beijing, China.

Jingbo (Hainan) New Materials Co., Ltd., established on 2012-02-28, Business scope includes biofuels,LPG fuel,distillate fuel,residual fuel,fuel blending components,Aromatics,solvent(including aliphatic solvents),Raw materials used in the production of solvents,white oil,Esters,Alcohols,lubricating oil,specialty oil,grease,petroleum wax,petroleum coke,asphalt,and condensate,activated carbon,Stone(The above does not contain hazardous chemicals)Research,to develop,Production,prepare,Package,Sales,import and export;toluene,Xylene,trimethylbenzene,naphtha,Solvent oil,liquefied petroleum gas,Methanol,plastic products,building materials,waterproof material,transportation equipment,Equipment,special equipment,hardware tools,Fire equipment,Insulation Materials,Bridge Expansion Joints,rubber bearing,Silicon core tube,elevator,air conditioner,Tank sales;warehouse storage(Free of Hazardous Chemicals);Mining development and related technology research,technology development,consultation service;Research on Highway Pavement Materials;Operation of roads and road ancillary facilities;road advertising business;houses,Space lease;highway,the highway,Self-use wharf,oil depot,Municipal facilities,Environmental friendly,agriculture,medicine,ocean development,building materials,new energy,Project development of new materials;gasoline,kerosene,diesel fuel[Closed cup flash point ≤60ºC],crude oil,natural gas[rich in methane]purchase and sales of.

Beijing National Highway Design and Research Institute Co., Ltd., established on 2001-06-29, Business scope includes highway engineering design;planning consultation;Bidding Consultation;Post-production consultation;technology development,technology transfer,technical consulting,Technical Services;Engineering Investigation.(Market entities independently choose business projects in accordance with the law,Carry out business activities;Items subject to approval by law,Carry out business activities in accordance with the approved content after approval by relevant departments;Do not engage in the business activities of projects prohibited and restricted by the industrial policies of the state and this city.)

Shenzhen Purui Material Technology Co., Ltd., established on 2018-04-10, Business scope includes general business items:Research and development of photoelectric materials and photoelectrochemical devices,transfer,consult,Test analysis service and sales;CNC power supply,Data acquisition module,electronic load,Electrochemical Workstation,lock-in amplifier,Pulse power supply,High-voltage power supply and other electronic test and measurement instruments,module,Design of software and related solutions,R & D and sales;Based on light microscope,atomic force microscope(AFM) ,electron microscope(SEM/TEM)Various microstructure in situ characterization techniques and its instruments,Design of accessories and software,R & D and sales;Non-standard customized equipment and scientific research instruments,Design of high-precision mechanical and electronic components and automation control data acquisition and analysis software,Development and sales;electronic product,electronics,Mechanical equipment design, development and sales;Self-operated and agent import and export business of various commodities and technologies.;Manufacturing of experimental analysis instruments;Sales of electronic measuring instruments;General equipment manufacturing(Does not include special equipment manufacturing);Electronic special equipment manufacturing;Mechanical and electrical equipment manufacturing;Mechanical equipment research and development;Instrument Manufacturing;Instrument sales;Metal Products Sales;Mechanical Parts,Parts sales;Teaching equipment sales;Optical Instrument Sales;synthetic material manufacturing(Free of Hazardous Chemicals);Manufacturing of Specialty Chemical Products(Free of Hazardous Chemicals);Specialty Chemicals Sales(Free of Hazardous Chemicals);Sales of daily chemical products;Synthetic Materials Sales;Professional Design Services;Experimental analysis instrument sales;New material technology research and development;Technical Services,technology development,technical consulting,Technology Exchange,technology transfer,Technology Promotion;3Dprint service;Manufacturing of special instruments;Information Consulting Service(Not including licensing information consulting services);Sales of non-metallic minerals and products;Optoelectronic Device Sales;Optical Glass Manufacturing;Manufacturing of Power Electronic Components;Electronic special material manufacturing;Manufacturing of electronic components;Electronic Components Retail;Optical Glass Sales;Sales of electronic special materials;Sales of power electronic components;Sales of Semiconductor Lighting Devices;Integrated circuit chips and product sales;Sales of special ceramic products;Research and development of special electronic materials;Research and development of power distribution switch control equipment;dye manufacturing;Manufacture of new membrane materials;Industrial Design Services;Engineering technical service(planning management,survey,design,Except supervision);Manufacturing of plastic products;Manufacturing of rubber products;Plastic surface treatment;Manufacturing of special equipment for electrical machinery;Manufacturing of Special Equipment for Semiconductor Devices;Electronic components and electromechanical,The licensing program is:Metal,ceramics,Mechanical mechanics of various structural and functional materials such as polymers,physics,Macroscopic and microscopic in-situ testing and analysis services of chemical properties;hot,Light,Electricity,magnetic,Mechanics of various functional materials and devices coupled with acoustic effects,physics,Macroscopic and microscopic in-situ testing and analysis services of chemical properties.

Shandong Haiyun Asphalt Co., Ltd., established on 2019-07-16, Business scope includes heavy traffic road asphalt,Modified asphalt,Modified emulsified asphalt,emulsified asphalt,rubber modified asphalt,Special asphalt,Production and sales of road asphalt(The above does not contain hazardous chemicals);Chemical Products(Free of Hazardous Chemicals),building materials,Sales of waterproof materials;thermoplastic styrene butadiene rubber,Styrene thermoplastic elastomer,Sales of styrene-butadiene latex(The above does not contain hazardous chemicals).(Items subject to approval by law,Business activities can only be carried out after approval by relevant departments,Do not engage in business activities of projects prohibited and restricted by local industrial policies)

PetroChina Karamay Petrochemical Co., Ltd., established on 2015-04-29, The business scope includes oil refining,Petrochemical,Production and sales of chemical products;crude,Refined oil storage;Goods and technology import and export business;gas,electricity,Heat production and supply;railway,road freight transport;shipping agent;Housing and machinery rental;Technology exchange and technology promotion services;Labor dispatch.(Items subject to approval by law,Business activities can only be carried out after approval by relevant departments)

Zhejiang Shuzhi Jiaotong Institute Technology Co., Ltd., established on 1993-11-23, Business scope includes road industry,Water transport industry,Municipal utilities,achitechive,Water Industry Planning,scientific research,engineering design,project consultancy,EPC,Comprehensive engineering survey,Exploration of Geological Hazard Control Engineering,design,Evaluate,Preparation of Soil and Water Conservation Program for Development and Construction Projects,Engineering surveying and mapping,Carry out foreign economic cooperation business(For the scope, please refer to the approval document of the foreign economic and trade department),Engineering Material Testing,Engineering inspection(The above business scope involves qualification certificates,Operate with a valid certificate),technology transfer,Technical Services,software development,graphic production,Geotechnical Material Testing,Bidding agency service,Engineering Supervision,design of building works,Soil and Water Conservation Design.(Items subject to approval by law,Business activities can only be carried out after approval by relevant departments)

Guangxi Beitou Traffic Maintenance Technology Group Co., Ltd., established on 2000-11-01, Business scope includes general contracting of highway construction,Professional contracting of bridge engineering,Highway pavement engineering professional contracting,Highway subgrade engineering professional contracting,Highway traffic engineering professional contracting,Construction general contracting,Highway maintenance engineering construction,General contracting and maintenance of port and waterway engineering construction,General contracting and maintenance of municipal public works construction,Professional contracting of foundation and foundation engineering,Special engineering professional contracting,urban landscaping,Engineering inspection,Geotechnical Investigation,design,consult,supervision,Geological disaster control engineering survey,design,construction,Geological Hazard Risk Assessment,engineering survey,Engineering bidding agency,project consultancy,security evaluation,Construction labor(The above projects are operated within the validity period with the qualification certificate);graphic design,make,detection,Maintenance technology research and development;Traffic engineering equipment and building materials(Removal of hazardous chemicals)Production,R & D and sales.(Items subject to approval by law,Business activities can only be carried out after approval by relevant departments.)

Guangxi Liyu Expressway Co., Ltd., established on 2017-03-17, Business scope includes transportation infrastructure construction investment and operation;Expressway greening project,Traffic Safety Facilities Engineering,Expressway Information Network Engineering,Highway Engineering Test and Inspection;Real estate development and management,commercial service;Engineering Consulting;Engineering Project Management;design,make,Publish and represent domestic advertisements;building materials,Equipment,office equipment,auto parts,General merchandise sales.(Items subject to approval by law,Business activities can only be carried out after approval by relevant departments.)