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Shuifa Energas Gas Co., Ltd. (Securities Short Name: Shuifa Gas; Securities Code: 603318) is a Main Board-listed enterprise positioned as an integrated service provider across the entire natural gas industry chain, with its ultimate controlling shareholder being the State-owned Assets Supervision and Administration Commission of the Shandong Provincial People’s Government. The Company’s business spans upstream resource acquisition, midstream LNG production, storage, transportation, and processing, and downstream urban gas operation and distributed energy applications, forming a technological roadmap characterized by “diversified gas sources + intelligent transmission and distribution + scenario-specific applications.” Its core businesses include LNG production and sales; natural gas-based distributed energy engineering (including combined cooling, heating, and power generation); franchised urban gas operations (covering over 20 cities and counties across Shandong, Henan, Hebei, Inner Mongolia, and other provinces); gas equipment manufacturing; and intelligent gas system integration. The Company possesses independently developed intellectual property rights for gas pressure regulation and metering equipment, SCADA intelligent dispatching systems, skid-mounted LNG vaporization units, and the “Shuifa Smart Gas Cloud” IoT platform (already connected to over 1.5 million end-user terminals). Its core technologies cover high-efficiency low-temperature liquid vaporization, intelligent multi-source gas blending, and dynamic pressure balance control, with over 80 authorized patents granted (including 12 invention patents). The Company has obtained ISO 9001, ISO 14001, and ISO 45001 management system certifications; its LNG-related equipment holds Special Equipment Manufacturing Licenses (TS) and Explosion-Proof Certificates; and multiple EPC projects have passed completion acceptance and filing with the Ministry of Housing and Urban-Rural Development. Representative projects include the Ordos 2-million-cubic-meter-per-day LNG liquefaction plant; the intelligent transformation of the entire urban gas pipeline network in Gaomi City, Shandong Province; the Lankao County, Henan Province “Rural Gasification” Distributed Energy Demonstration Project; and peak-shaving vaporization systems supplied to Sinopec and China National Petroleum Pipeline Network Group for their LNG receiving terminals. The Company possesses inter-provincial resource scheduling capabilities across East China, North China, and Northwest China. Currently, its business focuses on domestic clean energy infrastructure construction and offers diversified cooperation solutions—including LNG supply, gas engineering EPC services, intelligent gas system construction, complete equipment packages, and collaborative hydrogen-blending combustion technologies—to government platforms, energy enterprises, urban gas companies, and large-scale energy-consuming entities.

Shilong Heavy Industry (Dalian) Co., Ltd. is a high-tech enterprise specializing in the research, development, manufacturing, and service of port cranes, marine engineering equipment, and special construction machinery. The company positions itself as a provider of integrated system solutions for intelligent port equipment and marine engineering supporting equipment. Its core business covers the design, manufacturing, installation, retrofitting, maintenance, and technical services for port handling equipment, quay cranes, portal cranes, floating cranes, hydraulic grabs, and offshore platform supporting equipment. Its products are widely applied in port handling operations, intelligent upgrading of terminals, and near-shore engineering operations. Leveraging three invention patents and seventeen utility model patents, the company has accumulated technological expertise in areas such as intelligent hoisting control, anti-sway positioning, and lightweight marine engineering structural design. Its SSC-series intelligent portal cranes for ports integrate remote monitoring, self-diagnostic fault detection, and multi-unit coordinated scheduling functions, and have already entered routine operation at Yingkou Port and Jinzhou Port. The company holds the “Special Equipment Production License” (TS2421008–2028), possesses full qualifications for the manufacturing, installation, and repair of lifting machinery, and has achieved certification under the ISO 9001, ISO 14001, and ISO 45001 management system standards. It has participated in drafting and publishing the industry association standard “Technical Specification for Intelligent Control Systems of Port Portal Cranes” (T/CPHA 012–2024). In recent years, the company has continuously undertaken intelligent transformation projects for aging terminals along the Liaoning Coastal Economic Belt, including providing a domestic alternative solution for the electrical control system of quay cranes at Dalian Port Container Terminal, achieving independent adaptation of core PLC and frequency converter modules. Its service region is concentrated within the Bohai Bay port cluster; all delivered projects are located at coastal or inland river ports within China. The company offers customized equipment supply, intelligent upgrades for in-service equipment, full-lifecycle technical services, and collaborative standard development to port operators, terminal construction entities, equipment integrators, and relevant government regulatory authorities.

Shijiazhuang Fuda Machinery & Equipment Co., Ltd. Xinjiang Branch is a specialized service branch established by Shijiazhuang Fuda Machinery & Equipment Co., Ltd. in Northwest China. Leveraging its parent company’s 20 years of experience in research, development, manufacturing, and integrated services for mining machinery, metallurgical equipment, and environmental protection equipment, the branch focuses on the Xinjiang and broader Northwest regional markets and provides full-lifecycle support for equipment. Its core business includes the sale, installation, commissioning, maintenance, and leasing of mechanical equipment and components, electromechanical equipment, automated control equipment, and instruments and meters, as well as associated technical consulting and technical services. Its core competencies lie in the integrated application, on-site installation and commissioning, and rapid-response after-sales maintenance and repair of environmentally friendly equipment and solid waste treatment equipment—particularly crushing and screening systems. The branch has actively participated in an EPC project for steel slag treatment in Xinjiang, delivering customized solutions to iron and steel enterprises, mining companies, and solid waste treatment enterprises. Its qualification system is uniformly supported by the parent company, holding an A2-level pressure piping component manufacturing license and ISO 9001 Quality Management System certification, and possessing dozens of utility model patents; its technical capabilities cover equipment selection, system integration, on-site implementation, and continuous operation and maintenance. Its service network is headquartered in Urumqi and extends across the entire Xinjiang region, enabling collaboration with industrial enterprises, engineering EPC contractors, and local government environmental protection projects through various modalities—including equipment supply, system integration, turnkey engineering cooperation, and specialized technical services.

Shengxin Coking Co., Ltd. is a local backbone coking enterprise located in Xiaoyi City, Lüliang City, Shanxi Province, operating in compliance with regulations, meeting environmental protection standards, and adhering to approved production capacity. It is affiliated with Shanxi Jinmao Energy Group Co., Ltd. and has long focused on the production and sales of metallurgical coke, falling under the coking subsector within the ferrous metal smelting and rolling processing industry. The company currently operates two JN60-type stamp-charging coke ovens, with a designed annual output of 1.2 million tons of metallurgical coke. It is equipped with auxiliary by-product recovery facilities, including dry quenching coke (DQC), coke oven gas purification, and tar processing systems, enabling full integration across the coking industry chain. The company has completed upgrades to its DQC waste-heat power generation system and connected to the centralized heating network of the Xiaoyi Economic Development Zone to supply steam externally; its coke oven gas has been integrated into the “Hydrogen Capital” hydrogen energy demonstration project pipeline network of Xiaoyi Pengfei Group, serving as one of the raw gas sources for hydrogen production—demonstrating its practical capabilities in efficient resource utilization and low-carbon development pathways. In terms of qualifications, the company holds a “Work Safety Production License,” a “Pollutant Discharge Permit,” and a “Water Withdrawal Permit,” and has obtained GB/T 19001-2016 Quality Management System Certification (covering metallurgical coke production and sales). It has passed enhanced supervisory spot checks conducted by the Lüliang Municipal Ecological Environment Bureau during the autumn-winter atmospheric pollution prevention and control period for three consecutive years and has been designated as a key pollutant discharger (atmospheric environment category) in Shanxi Province for 2023. Its primary customers are steel enterprises in North China and East China, with typical partners including Shanxi Jianlong Iron and Steel Co., Ltd., Hebei Jingye Iron and Steel Co., Ltd., and Shandong Rizhao Iron and Steel Holding Group Co., Ltd. Deliveries rely on an integrated logistics system combining rail and road transport. The company is currently advancing preliminary work for its “1.2 million tons/year upgrading project for 6.25-meter-high stamp-charging coke ovens” to align with Shanxi Province’s requirements for high-quality development of the coking industry. It is open to cooperation with stakeholders in the steel, energy, chemical, and hydrogen energy sectors—including metallurgical coke supply, resource-efficient utilization of coke oven gas, and comprehensive utilization of waste heat.

Shanghai Sulzer Mechanical Engineering Manufacturing Co., Ltd. is a wholly foreign-owned enterprise established in China by Sulzer Ltd. of Switzerland. As a key hub within Sulzer’s global manufacturing network and for localized production and technical services of high-end fluid machinery in the Asia-Pacific region, the company specializes in the design, manufacturing, installation, maintenance, and full-lifecycle technical services of industrial pumps, mixing equipment, and fluid handling systems. Its products are widely applied across industries including power generation (including conventional islands of nuclear power plants), petrochemicals, chemicals, pharmaceuticals, water treatment, and papermaking. The company complies with international standards such as API 610, 12th Edition, and ANSI B73.1. Core products include the SULZER C-series chemical process pumps and the HGM-series high-speed magnetic-drive pumps. Leveraging Sulzer’s global R&D platform, the company continuously advances localization substitution and intelligent operation & maintenance technology development, holding 12 utility model patents and 3 invention patents covering areas such as cavitation-resistant structural optimization and digital twin-based condition prediction. It operates a CNAS-accredited laboratory and a 12 MW full-capacity pump test station (capable of maximum flow rate of 20,000 m³/h and head exceeding 2,000 m). The company holds the “Special Equipment Production License” (for pressure piping components manufacturing, TS2731037-2027) and has achieved certification under ISO 9001:2015, ISO 14001:2015, and ISO 45001:2018. Representative projects include supplying critical components of high-pressure coolant injection pumps for Phase II of Sanmen Nuclear Power Plant (China National Nuclear Corporation); delivering high-temperature, high-pressure process pumps for the Dalian Integrated Refining & Chemical Project of Hengli Petrochemical; and providing GMP-compliant hygienic centrifugal pump systems for the East China Biopharmaceutical Industrial Park. Services cover all provincial-level administrative regions of mainland China, with focused support for equipment clusters in the Yangtze River Delta, Guangdong-Hong Kong-Macao Greater Bay Area, and Bohai Rim regions. Through collaboration with Sulzer’s global service system, the company participates in technical support and localized delivery for energy and chemical projects along the Belt and Road Initiative routes. It offers customized products, integrated solutions, and full-cycle technical service cooperation to engineering EPC contractors, end-users, and industry system integrators.

Shanghai Lide Catalyst Co., Ltd. is a high-tech enterprise established in 2003, specializing in the research and development, production, and technical services of industrial catalysts. The company positions itself as a provider of core catalytic material solutions for petroleum refining, coal chemical industry, fine chemical industry, and environmental pollution control. Its main business encompasses R&D and customized applications of solid-state catalytic materials, including FCC auxiliary agents, low-temperature sulfur-tolerant shift catalysts, organic sulfur hydrolysis catalysts, and VOCs catalytic oxidation catalysts. It also provides full-process technical support services, such as catalyst selection, loading guidance, operational monitoring, and lifetime evaluation. Supported by sustained R&D investment (average R&D expenditure accounting for 8.6% of revenue over the past three years), the company holds 12 authorized invention patents and 9 utility model patents, and has participated in drafting the industry standard “HG/T 5910–2021 Technical Specification for Sulfur-Tolerant Shift Catalysts for Industrial Use.” In terms of qualifications, it holds a valid “High-Tech Enterprise Certificate” expiring in November 2026; is certified under ISO 9001 Quality Management System and ISO 14001 Environmental Management System; and possesses a Hazardous Chemicals Production Safety Permit (Permit No.: Hu WH An Xu Zheng Zi [2022] 000187), authorizing production of hydrogenation catalysts, desulfurization catalysts, and other products. Representative project clients include Sinopec Zhenhai Refining & Chemical, China Shenhua Ordos Coal-to-Oil Project, and Wanhua Chemical Yantai Industrial Park—large-scale chemical facilities. Its technical service capabilities are supported by CNAS-accredited laboratories. Its domestic service network covers major chemical industrial parks in East China, North China, and Northwest China. Its collaboration models focus on technology co-development, customized catalyst supply, plant operation optimization, and catalyst regeneration services.

Shanghai Kaisheng Energy-Saving Engineering Technology Co., Ltd. is a high-tech enterprise specializing in industrial energy-saving technology research and development, system integration, and engineering services. It has long served energy-intensive industries such as cement, glass, and steel, focusing on waste-heat power generation, flue gas treatment, cascaded energy utilization, and construction of intelligent energy management systems (EMS). The company operates within the industrial energy-saving services subsector of the energy conservation and environmental protection industry. It holds Grade II professional contracting qualification for building mechanical and electrical installation engineering and Grade B specialized design qualification for environmental engineering (air pollution control engineering). Additionally, it maintains ISO 9001, ISO 14001, and ISO 45001 management system certifications and is registered with the National Development and Reform Commission (NDRC) as an Energy Management Contracting (EMC) project service provider. Leveraging core technologies—including optimized waste-heat boiler design, deep low-temperature waste-heat recovery, and coordinated regulation of multi-source heterogeneous energy—the company has been granted six authorized invention patents and 23 utility model patents. Its technological achievements have been widely applied in energy-saving retrofit projects across production lines of subsidiaries under Conch Cement, Jidong Cement, and China National Building Material Group. Representative projects include: the EPC project for an Organic Rankine Cycle (ORC) low-temperature waste-heat power generation system at a 5,000-ton-per-day clinker cement production line in Anhui Province (annual power generation approximately 18 million kWh); the integrated technical renovation project for flue gas waste-heat recovery plus Selective Catalytic Reduction (SCR) denitrification at a glass furnace in Hebei Province; and the intelligent peak-shaving and TRT (Turboexpander Recovery Turbine) waste-pressure power generation optimization project for a blast-furnace gas holder at an iron and steel enterprise in Ningxia. Its business spans over ten provinces and municipalities, including East China, North China, and Northwest China; it currently does not undertake overseas engineering projects. Serving industrial enterprises, design institutes, engineering, procurement, and construction (EPC) contractors, and energy investment institutions, the company offers diversified cooperation models, including energy-saving diagnostics, technical solution design, EPC general contracting, EMC energy management contracting, and operation and maintenance of intelligent energy systems.

Shanghai Dragon Industrial Engineering Co.,ltd is a national high-tech enterprise specializing in industrial process safety and energy conservation & environmental protection, dedicated to providing inherently safe equipment and systematic solutions for process industries such as petrochemicals, chemicals, pharmaceuticals, and energy. The company’s core business encompasses research & development, manufacturing, and system integration services for key products including industrial flame arresters, breather valves, emergency shut-off valves, and explosion-proof pressure-relief devices. Its industry classification is “Manufacturing of Specialized Safety and Emergency Rescue Equipment” (C3592). Leveraging technical approaches involving fluid dynamics simulation modeling, multi-condition experimental validation, and enhanced material corrosion resistance, the company has developed proprietary product lines—including the ZJ-series high-performance flame arresters and the QF-series rapid-response emergency shut-off valves—and holds six invention patents and over 20 utility model patents; two of these patents have been included in the “List of Key Energy-Saving and Low-Carbon Technologies for the Petrochemical Industry (2024 Edition).” Its products comply with major domestic and international standards including API RP 2510, EN ISO 16852, and GB/T 13347; have obtained type approvals from China Classification Society (CCS), TÜV Rheinland (Germany), and UL (USA); and possess ASME B31.4/B31.8 pressure piping component manufacturing qualification (TS Certification No.: TS2731A10-2026). The company is also a member of the Flame Arrester Working Group under the National Boiler and Pressure Vessel Standardization Technical Committee. Representative projects include Sinopec Zhenhai Refining & Chemical, Wanhua Chemical Yantai Industrial Park, Hengli Petrochemical (Dalian) PTA Project, and China National Pharmaceutical Group Shanghai Biopharmaceutical Base—covering over 30 national-level key projects—providing complete explosion-proof safety equipment and customized installation & commissioning services. Products have also been exported to Kazakhstan, Vietnam, the United Arab Emirates, and other countries via EPC general contractors, conforming to CE, PED 2014/68/EU, and AD2000 Annex B certification requirements. The company offers collaborative solutions—including equipment supply, technical consultation, localization replacement implementation, and full-lifecycle operation & maintenance support—for fields such as Process Safety Integrity Management (SIL), explosion protection, and VOCs control.

Shanghai DuHui Automation System Co., Ltd. is a high-tech enterprise specializing in industrial automation control system integration and intelligent transformation. It positions itself as a core technology service provider for the digital transformation of manufacturing industries, operating within the industry category “Specialized Equipment Manufacturing—Industrial Automatic Control System Equipment Manufacturing.” The company’s core businesses include industrial automation control system integration, electrical design and commissioning of intelligent equipment, PLC/HMI/SCADA system development, MES edge-layer information implementation, and intelligent transformation of production lines. Its services cover discrete manufacturing sectors such as automotive components, food packaging, and pharmaceutical machinery. Leveraging mainstream controller platforms—including Siemens S7-1200/1500 and Mitsubishi FX5U/R series PLCs—and supporting industrial communication protocols such as PROFINET, EtherCAT, Modbus TCP, and OPC UA, the company has established standardized electrical cabinet design specifications and project delivery processes. The enterprise holds a High-Tech Enterprise Certificate (valid until November 2025), ISO 9001:2015 Quality Management System Certification, Grade III General Contracting Qualification for Mechanical and Electrical Engineering Construction, and a Work Safety Permit. It owns five utility model patents (e.g., modular servo control device based on EtherCAT bus; high-precision flow synchronization control system for filling lines) and seven software copyrights (including PLC logic configuration management platform and MES edge data acquisition middleware). Representative projects include upgrading the electrocontrol system for an annual production line of 2 million brake calipers for a Zhejiang-based automotive braking system supplier; implementing a fully automatic vision-based positioning and correction filling/packaging line for a Jiangsu dairy enterprise (achieving OPC UA integration with MES); and participating in the “lightweight intelligent transformation and digital transition” pilot program for three small- and medium-sized manufacturing enterprises at the Shanghai Lingang Intelligent Equipment Industrial Park. Currently, its service region is concentrated in the Yangtze River Delta area, providing end-to-end collaboration—including technical consultation, system design, engineering implementation, and operation & maintenance support—to enterprises requiring automation system upgrades, intelligent production line transformation, edge data integration, and customized control solutions.

Shanghai Dongrui Chemistry Co., Ltd. is a national high-tech enterprise specializing in the research, development, production, and sales of high-end organic functional materials. The company focuses on customized supply of fluorinated fine chemicals, chiral catalytic materials, and key precursors for emerging display/semiconductor/pharmaceutical/new energy sectors. Its core business covers high-value-added fine chemicals, including fluorinated organic compounds (e.g., electronic-grade fluorinated anisole F-207), chiral ferrocenyl phosphine ligands (DRC-121), OLED/perovskite display material precursors, and pharmaceutical intermediates. These products are widely applied in emerging display panels (BOE, CSOT), innovative drug synthesis (WuXi AppTec), semiconductor packaging, and new-energy battery electrolyte additives (Cnano Technology), among others. The company possesses customized R&D and production capabilities ranging from kilogram-scale to hundred-kilogram-scale, has established a pilot-scale platform for fluorinated functional materials with an annual capacity of 1,000 metric tons, and operates a Class 10,000 cleanroom compliant with Good Manufacturing Practice (GMP) standards. It holds 17 authorized invention patents and 5 utility model patents, all concentrated on targeted fluorine chemistry synthesis, asymmetric catalysis, and high-purity purification processes; three of these patented technologies have been industrialized. In terms of certifications, the company has obtained ISO 9001 Quality Management System certification and holds both the “Safety Production License for Hazardous Chemicals” (Shanghai WH Safety Permit No. [2023] 000128) and the “Pollutant Discharge Permit” (No. 91310120332378647H001V), authorizing synthesis and purification of fluorinated fine chemicals, pharmaceutical intermediates, and electronic-grade specialty solvents. Its business serves major domestic new-materials and biopharmaceutical industry clusters and extends to exports to Japan, South Korea, and Taiwan, China. In 2024, its export value under HS Code 29039990 reached RMB 42.8 million. The company now invites upstream and downstream industrial chain partners to collaborate in joint R&D, process optimization, pilot-scale amplification, custom synthesis, and GMP-compliant small-batch supply.