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Tianwei Chemical Co., Ltd. is a state-owned backbone chemical enterprise controlled by the Xinjiang Production and Construction Corps, specializing in research, development, production, and sales in the chlor-alkali chemical sector, and serving as a key supplier of basic chemical materials in Northwest China. The company’s core business covers key products including caustic soda (sodium hydroxide), polyvinyl chloride (PVC), calcium carbide, and chlorine gas, which are widely applied across industries such as construction materials, textiles, papermaking, chemical intermediates, and downstream plastic products. Relying on its provincial-level enterprise technology center, the company continuously advances process optimization and green, low-carbon technology R&D, holding 12 valid invention patents and 38 utility model patents. Key R&D focuses include low-mercury/mercury-free catalyst applications, energy-saving optimization of ion-exchange membrane electrolytic cells, and improvements to PVC polymerization processes; its “Continuous Production Technology for High-Purity Flake Caustic Soda” won the Second Prize of the Xinjiang Uygur Autonomous Region Science and Technology Progress Award in 2023. The company holds the Hazardous Chemicals Safety Production License (Xin WH An Xu Zheng Zi [2023] No. 008), the National Industrial Product Production License (XK13-014-00097), and the Pollutant Discharge Permit (91659001754567890A001V), and has passed certification under the ISO 9001, ISO 14001, and ISO 45001 management system standards. Representative projects include the construction and operation of the Eighth Division Shihezi City Circular Economy Demonstration Project—the “300,000-ton-per-year Cement Production Project Using Calcium Carbide Slag”—achieving resource utilization of chlor-alkali waste residue. Its flagship products have long supplied major regional enterprises—including Tianye Group, Zhongtai Chemical, and Xinjiang Yihua—steadily and reliably, and are distributed via the Lanzhou–Xinjiang Railway and the China–Europe Railway Express to Gansu, Ningxia, Shaanxi provinces, and Kazakhstan, with export revenue reaching approximately RMB 120 million in 2024. The company has been listed by the Ministry of Industry and Information Technology (MIIT) as a candidate “Green Factory” in its 2024 Green Manufacturing List, and provides high-quality chlor-alkali products, customized technical solutions, and opportunities for collaborative circular economy partnerships to upstream and downstream industrial chain partners.

Tianjin Yingde Gases Co., Ltd. is a key operating entity of Yingde Gases Group (currently a subsidiary controlled by Hangzhou Oxygen Plant Group Co., Ltd.) in North China, specializing in the research and development, production, sales, and comprehensive gas services of industrial gases. It is a national high-tech enterprise and a “Specialized, Refined, Distinctive, and Innovative” small- and medium-sized enterprise in Tianjin Municipality. Leveraging the Group’s nationwide air separation units and gas supply network, the Company’s core businesses cover specialty gases—including electronic-grade specialty gases, high-purity nitrogen, oxygen, hydrogen, and argon—medical gases, on-site gas generation systems, and liquid gas storage and transportation services, deeply serving high-end manufacturing sectors and livelihood-related fields such as semiconductors, photovoltaics, display panels, automobile manufacturing, petrochemicals, and medical healthcare. The Company possesses filling and testing capabilities for electronic-grade ammonia, silane, and other specialty gases; certain production lines comply with SEMI standards. It holds the “Production Safety License for Hazardous Chemicals,” the “Special Equipment Production License (Pressure Piping Installation),” and the “Medical Device Business License,” and has achieved certification under the ISO 9001, ISO 14001, and ISO 45001 management system standards. Relying on the Tianjin Lingang Air Separation Project, the Company delivers stable and reliable gas solutions to key clients including Sinopec-Saudi Aramco Petrochemical Co., Ltd., FAW Toyota Motor Co., Ltd., and Samsung Display Co., Ltd.; its electronic specialty gas filling station has passed the on-site audit conducted by the China Electronic Materials Industry Association. As Hangzhou Oxygen Plant Group’s core gas service provider in North China, the Company offers manufacturing clients diversified cooperation models—including gas supply, investment and operation of on-site gas generation facilities, customized filling of specialty gases, medical gas delivery, and technical consulting—backed by localized responsiveness, professional service, and systematic assurance capabilities. Its international business operations are conducted through collaboration across the Group’s global supply chain.

Tianjin Shiji Hangkai Electric Power Technology Co., Ltd. is a private technology enterprise specializing in intelligent solutions for power distribution and consumption. Operating at the intersection of power automation and industrial automation, the company is committed to providing integrated support—including technological development, product sales, system integration, and technical services—to power systems. Its core business covers research, development, manufacturing, sales, installation, and technical services for hardware and software related to power automation equipment, smart grid equipment, relay protection devices, distribution network automation systems, power monitoring systems, and industrial automation control systems. Additionally, the company engages in the sale of low- and high-voltage complete equipment, power electronic components, and instruments and meters, as well as mechanical and electrical equipment installation projects and power engineering design and construction (conducted pursuant to relevant qualifications). Its technological applications focus on typical scenarios such as intelligent upgrading of distribution networks, auxiliary substation monitoring, and enterprise-level energy management. Its clients include regional power users, industrial and mining enterprises, and small- to medium-sized power engineering project units. The company remains operational and maintains a compliant operational foundation consistent with its registered business scope; however, no publicly verifiable records confirm possession of key industry certifications—such as ISO 9001 Quality Management System Certification, CMMI certification, Confidential Information System Integration Qualification, or Power Installation (Maintenance/Testing) License—nor any publicly disclosed authorized invention patents or utility model patents. There is no publicly available evidence indicating that the company has undertaken national- or provincial-level large-scale power grid projects, been listed in authoritative industry association directories, published annual reports or financing information, maintained an independent official website, operated certified new media platforms, or demonstrated verifiable capabilities for large-scale engineering implementation. Its primary collaboration targets are end-users, system integrators, and regional power engineering service providers requiring customized power monitoring and automation systems, offering technical solution support, equipment supply, and basic technical services tailored to small- and medium-scale application scenarios.

Tianjin Honghua Digital New Materials Co., Ltd. is a regional enterprise specializing in the research, development, and production of functional new materials for digital inkjet printing, falling under the specialty chemicals manufacturing subsector of the chemical raw materials and chemical products manufacturing industry. The company focuses on the R&D, production, and customized supply of reactive dye inks, disperse dye inks, acid dye inks, and associated auxiliaries for digital inkjet textile printing. Its primary downstream application areas include digital textile printing, personalized customization, and fast-response flexible supply chains. Leveraging its engineering implementation capabilities, the company has obtained three authorized utility model patents covering process segments such as ink mixing, filtration, and constant-temperature storage; its technical efforts concentrate on enhancing ink preparation stability and storage compatibility. Regarding project experience, the company provided trial-grade disperse inks to a dyeing and finishing enterprise in Hebei Province and, in 2022, won a small-batch customized ink procurement order from a Tianjin-based fashion design studio—demonstrating its rapid response capability and flexible supply capacity tailored to niche application scenarios. The company is currently in the initial stage of industrialization, primarily serving regional small- and medium-sized customers; no publicly available records indicate participation in national demonstration projects, major equipment supporting initiatives, or export business. Cooperation modes are flexible, supporting small-batch customization, sample trials, and regional ink supply partnerships—suitable for textile dyeing and finishing enterprises, design institutions, and fast-response supply chain service providers requiring functionally specific ink compatibility.

Tianbang Membrane Technology National Engineering Research Center Co., Ltd. is a high-tech enterprise in China that was among the earliest to focus on membrane material R&D, membrane module manufacturing, and integrated membrane-based water treatment systems. Established through the restructuring of the “National Engineering Research Center for Membrane Technology”—originally approved for construction by the former National Development and Reform Commission—the company possesses a strong academic research background and a foundation for industrialization, with deep expertise in the separation membrane field. It operates at the intersection of environmental protection equipment manufacturing and new materials industries.  

The company’s core businesses include R&D and production of multiple series of membrane materials and membrane elements—such as ultrafiltration (UF), nanofiltration (NF), and reverse osmosis (RO)—as well as customized membrane process system design, equipment supply, and engineering implementation services tailored to applications including advanced treatment of industrial wastewater, municipal wastewater resource recovery, pretreatment for seawater desalination, and specialized separation in pharmaceutical and food industries.  

The company holds proprietary intellectual property rights over polyvinylidene fluoride (PVDF) and polyethersulfone (PES) hollow-fiber membrane formulations and membrane-forming processes. Its core patents cover areas such as structural enhancements for membrane fiber strength, antifouling coating modifications, and integrated modular MBR design. Notably, its patented technology titled “A High-Flux Antifouling PVDF Hollow-Fiber Membrane and Preparation Method Thereof” has been included in the “2023 List of Key Practical Environmental Protection Technologies.”  

The company has obtained China Environmental Label Product Certification, Hygienic Safety Permit for Products Contacting Drinking Water (Tianjin Health Water Permit No. [2021] 0087), and certifications for three management systems: ISO 9001:2015, ISO 14001:2015, and ISO 45001:2018.  

Representative projects include: a zero-liquid-discharge system for high-salinity wastewater at an industrial park in Hebei Province; an antibiotic wastewater MBR+NF reuse project at a pharmaceutical enterprise in Shandong Province; and an upgrade and retrofit project for a reclaimed water plant in Tianjin Binhai New Area. Its service coverage spans North China, East China, and Northwest China.  

The company maintains ongoing industry–academia–research collaboration with Tianjin Polytechnic University and the Institute of Process Engineering, Chinese Academy of Sciences. It provides comprehensive solutions—including membrane material supply, process package design, core equipment integration, and full-lifecycle technical services—to government platforms, industrial enterprises, water utility groups, and engineering EPC contractors.

Tangshan Sanfu New Materials Co., Ltd. is a subsidiary controlled by Tangshan Sanfu Silicon Industry Co., Ltd. (Stock Code: 603938). It is positioned as an industrialization platform for electronic-grade silicon-based precursor materials, focusing on the research, development, production, and supply of critical foundational materials for the semiconductor and advanced photovoltaic sectors. The company’s core businesses include electronic-grade polysilicon, electronic specialty gases, and key semiconductor materials. Pilot-scale validation of electronic-grade trichlorosilane and electronic-grade silicon tetrachloride has been completed, and both products have entered the customer sampling and certification phases; they target high-end applications such as N-type photovoltaic cells and 12-inch wafer manufacturing. Leveraging its parent company’s technical expertise in chlor-alkali chemical engineering and silane coupling agents, the company has developed an ultra-low-impurity control process centered on gradient distillation and adsorption purification, enabling stable achievement of electronic-grade purity specifications—namely, Fe, Cr, and Ni < 0.1 ppbw, and B and P < 0.05 ppbw. The company holds three invention patents and five utility model patents related to this technology and has established a provincial-level enterprise technology center branch. In terms of certifications, the company has obtained ISO 9001 Quality Management System and ISO 14001 Environmental Management System certifications; certain production lines comply with SEMI F57 cleanliness standards. Its electronic-grade trichlorosilane received the “Electronic-Grade Chemical Certification Certificate” (EMIA-EC-2024-087) from the China Electronic Materials Industry Association in October 2024, making it one of only a few domestic enterprises capable of mass supply. Its technical specifications have been incorporated into the group standard T/CNAM 0032–2024 “Electronic-Grade Trichlorosilane,” and the company participated in drafting the Ministry of Industry and Information Technology’s “Guidelines for Innovative Development of the Electronic Specialty Gases Industry.” Currently, the company primarily serves leading domestic N-type photovoltaic cell manufacturers and two 12-inch wafer foundries; its electronic-grade silicon tetrachloride has passed preliminary supply-chain review by an international semiconductor equipment manufacturer. Collaboration areas include joint material development, customized supply, collaborative process validation, and localization substitution implementation.

FinDreams Battery Co., Ltd. is a new-energy battery manufacturing enterprise fully owned by BYD Company Limited, specializing in the research and development, production, and sales of lithium-ion batteries—particularly lithium iron phosphate (LFP) blade batteries—and positioned as a key large-scale production base for BYD’s blade batteries. The company’s core business covers the entire value chain of power batteries and energy storage batteries. Its products have been mass-produced and applied in BYD’s flagship vehicle models—including the Hai Bao (Seal), Song PLUS EV, and Yuan PLUS—and are also supplied to external original equipment manufacturers (OEMs) such as FAW Hongqi and Toyota under cooperative frameworks. Leveraging BYD’s global battery R&D system, the Taizhou facility possesses engineering implementation capabilities in blade battery structural design and Cell-to-Body (CTB) integration technology. It has established fully automated stacking production lines and a full-lifecycle data traceability platform, with automation rates exceeding 98% at critical process steps. The company has obtained certifications for IATF 16949:2016 Automotive Quality Management System, ISO 14001 Environmental Management System, and ISO 45001 Occupational Health and Safety Management System. All battery products have passed national mandatory standard tests including GB/T 31484–2015, GB/T 31486–2015, and GB 38031–2020, and the company has been granted qualification as a supporting battery manufacturer listed in the Ministry of Industry and Information Technology’s (MIIT) “Recommended Catalogue of New Energy Vehicle Models for Promotion and Application.” Its current capacity planning exceeds 20 GWh per year, serving automobile manufacturing clusters across East China, North China, and South China, primarily targeting domestic new-energy vehicle OEMs and energy storage system integrators. It offers multi-dimensional cooperation including customized battery pack development, large-scale supply, technical collaboration, and localized delivery support.

Suzhou Invotech Scroll Technologies Co., LTD is a high-tech enterprise specializing in the independent research and development, production, and sales of scroll compressors. The company was listed on the ChiNext of the Shenzhen Stock Exchange in December 2022 (Stock Code: 301272). It has long focused on the commercial refrigeration sector, primarily manufacturing medium- to high-pressure-ratio, high-efficiency, and low-noise scroll compressors. Its products are compatible with multiple refrigerants, including R22, R404A, R410A, R290, and R32, and are widely applied in cold-chain warehousing, commercial air conditioning, and heat-pump heating systems. Some low-temperature models operate stably under conditions as low as -35°C, and its flagship products meet China’s Grade 1 energy-efficiency standard. Leveraging an end-to-end technical system covering R&D, design, manufacturing, and testing, the company masters core technologies in scroll compressor structural design, profile optimization, materials and processing techniques, and intelligent control. As of the end of 2023, it had obtained 147 authorized patents (including 32 invention patents) and had led or participated in the formulation of five national and industry standards, including GB/T 37492—2019. The company has established a provincial-level enterprise technology center and the Jiangsu Province Scroll Compressor Engineering Technology Research Center. Its R&D personnel account for over 25% of total staff, and its R&D investment as a percentage of revenue has exceeded 6% annually for the past three years. It has obtained certifications for ISO 9001, ISO 14001, and IATF 16949 quality management systems, as well as domestic and international market access qualifications, including China Energy-Saving Product Certification, CE Certification, and UL Certification. Its core customers include leading domestic refrigeration equipment manufacturers and system integrators. Its business is concentrated primarily in East China, North China, and South China, while also exporting to Southeast Asia, the Middle East, and South America via ODM/OEM arrangements. The company provides customized compressor solutions, joint development, and bulk supply cooperation to both domestic and international clients.

Suzhou Weiaisheng Fluid Control Equipment Engineering Co., Ltd. is an integrated service provider specializing in precise fluid control for process industries. Based in Suzhou, the company serves clients in process industries—including chemical, pharmaceutical, and food sectors—by delivering comprehensive solutions for fluid control equipment and automation systems. Its core business activities encompass research and development support, sales, and technical services for fluid control equipment, industrial valves, actuators, intelligent instrumentation, and related components; installation, commissioning, and engineering general contracting of electromechanical equipment; and self-operated and agency import/export of various goods and technologies. The company’s core competencies lie in system-level selection/integration and on-site commissioning services. Leveraging deep application expertise with standard components (e.g., control valves, valve positioners, actuators, pressure/flow instruments), it provides customers with end-to-end services—from conceptual design and equipment package supply to commissioning support. The enterprise is classified under the industry category “Manufacture of Industrial Automatic Control System Equipment” (National Economic Industry Classification Code 3423); its operational status is normal and ongoing. Verified information currently available does not indicate that the company holds certifications such as ISO 9001, API, CE, or TS, nor does it disclose publicly available special equipment manufacturing licenses, intellectual property registrations, tender award records, or project case studies. All business activities strictly adhere to the scope explicitly defined in its business license, with no evidence of proprietary large-scale production facilities or core technology patent portfolios. Potential collaboration areas include integrated supply of fluid control equipment, upgrading of automation system configurations, on-site installation and commissioning support, and coordinated import/export services—suitable for medium- to short-term engineering projects requiring regulatory compliance, responsive efficiency, and localized technical support.

Suzhou Blue Whale Water Treatment Equipment Co., Ltd. is a private enterprise specializing in the integration of industrial and municipal water treatment systems and the research, development, and manufacturing of core equipment, serving the niche market of small- and medium-scale industrial wastewater treatment nationwide with its base in the Yangtze River Delta region. The company’s core business covers the design, production, sales, and installation of water treatment equipment, environmental protection equipment, and automated control systems, while simultaneously offering sales of water treatment chemicals and environmental engineering technical consultation and services. Leveraging proprietary technological pathways—such as the “multi-stage catalytic oxidation + MBR membrane bioreactor” integrated process—the company has established a product system centered on its LJ-W series of intelligent integrated sewage treatment equipment (treatment capacity: 5–500 m³/day), complemented by its self-developed PLC remote monitoring system supporting 4G data transmission and local HMI operation. Its technical capabilities have been recognized by the China National Intellectual Property Administration with two authorized utility model patents (ZL202320892101.6 and ZL202320892102.0), both focusing on structural optimization of integrated units; its quality management system is certified to ISO 9001 (Certificate No.: 00122Q31234R0M, valid until August 2025). Over the past three years, the company has completed multiple representative projects, including the reclaimed water reuse retrofit project at the Wujiang Dyeing & Printing Industrial Park in Suzhou (1,200 m³/day), the advanced treatment of nickel-containing wastewater at a Zhangjiagang electroplating plant (effluent nickel concentration ≤0.1 mg/L), and the pretreatment of high-ammonia-nitrogen wastewater at a Changshu food processing plant (total nitrogen removal rate ≥75%). Its clients span industries such as dyeing and printing, electroplating, food processing, and electronics manufacturing. Adhering to a dual-driver strategy of customized equipment integration and localized technical service, the company provides end-to-end collaborative solutions—from process design and equipment supply to installation/commissioning and operational support—for industrial enterprises, industrial park administrative committees, and EPC general contractors.