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Dalian Bihai Environmental Protection Equipment Co., Ltd., located in Yingchengzi Industrial Park, Ganjingzi District, Dalian City, Liaoning Province, is a national high-tech enterprise specializing in the research, development, and manufacturing of industrial wastewater treatment systems, reclaimed water reuse solutions, and integrated environmental protection equipment. The company is in the mature industrialization phase and has completed its transformation from supplying individual equipment to providing end-to-end services covering process design, core equipment integration, and intelligent operation & maintenance. Its core business serves heavily polluting industries—including electroplating, printed circuit board (PCB) manufacturing, and surface treatment—by addressing highly challenging wastewater streams containing heavy metals and high-concentration organic pollutants. It delivers customized solutions based on an integrated technological pathway comprising electrochemical advanced oxidation, gradient membrane separation, and AI-enabled energy efficiency optimization. The company possesses independent R&D and engineering delivery capabilities, operates a CNAS-accredited laboratory (Registration No. L9265), and holds 47 authorized patents (including 12 invention patents). Its core technologies feature modularized equipment design, independently developed control algorithms, and cloud-based operational data management. The company is capable of undertaking EPC general contracting for industrial wastewater treatment plants with daily capacities ranging from 3,000 to 5,000 tons. Its flagship BH-EC series of electrochemical wastewater treatment equipment has received Class A certification from the China Environmental Protection Industry Association and has been included in the “Catalogue of Major Environmental Protection Technologies and Equipment Encouraged by the State (2023 Edition).” The company holds ISO 9001/14001/45001 integrated management system certifications, the “Special Equipment Production License of the People’s Republic of China” (Pressure Pipeline Components, Grade A), and the “Qualification Certificate for Operation of Environmental Pollution Control Facilities” (Grade A for Industrial Wastewater; Certificate No.: Huan Yun Ying Liao Zi 2021-037). Representative projects include: (1) constructing and commissioning, for a Shenzhen-based listed PCB manufacturer, a zero-discharge system treating 3,000 tons/day of copper/nickel-containing wastewater, operating stably for over four years with a water reuse rate of 92%; and (2) designing and building, for the Suzhou Industrial Park Electroplating Agglomeration Zone, a centralized pre-treatment center for electroplating wastewater with a capacity of 5,000 tons/day (EPC general contracting), where heavy metal discharge levels consistently meet standards stricter than those stipulated in Table 3 of GB 21900–2008. The company participates in international projects via equipment exports and technical services, including delivering cyanide-containing wastewater cyanide destruction modules to the Bac Giang Electronics Industrial Park in Vietnam (2024) and completing remote diagnostics and control system upgrades for an automotive parts factory in Monterrey, Mexico (2025). Cross-border project delivery is supported by 11 provincial after-sales service centers across China and a technical collaboration mechanism with Germany’s EnviroTech GmbH.

Dalian Best Environmental Engineering Equipment Co., Ltd., located in Ganjingzi District, Dalian City, Liaoning Province, is a national high-tech enterprise specializing in the research and development, design, manufacturing, and system integration of industrial environmental protection equipment. Its industry classification is Manufacturing of Specialized Environmental Protection Equipment (C3591), and it is currently in a stable development phase. The company’s core business covers integrated flue gas desulfurization, denitrification, and dust removal equipment; VOCs treatment systems; advanced industrial wastewater treatment equipment; and sludge drying and resource utilization equipment. It primarily serves high-emission industrial enterprises in sectors such as power generation, steel production, chemical manufacturing, and coking, and undertakes EPC projects for comprehensive ecological environment governance commissioned by local governments. The company possesses core technical capabilities in multi-pollutant synergistic control and low-energy intelligent operation & maintenance. It independently developed the BS-ECO series of low-temperature denitrification reactors, supported by four valid invention patents (including ZL202010287654.2) and 17 utility model patents, enabling stable operation within a flue gas temperature range of 180–220°C—breaking traditional SCR technology’s dependence on high temperatures. The company has obtained certification under ISO 9001:2015, ISO 14001:2015, and ISO 45001:2018; holds the “Special Equipment Production License” (GD2-level pressure piping component manufacturing) and Grade III qualification for environmental engineering professional contracting (D321123456); and was included in the Liaoning Province’s 2024 list of “Specialized, Refined, Distinctive, and Innovative” small and medium-sized enterprises (Liaoning Industry and Information Technology Commission Document No. [2024] 78). Representative projects include: (1) In 2022, completion of the catalytic combustion + activated carbon adsorption combined VOCs treatment project for Shanxi Meijin Huasheng Chemical Co., Ltd. (treated air volume: 120,000 Nm³/h; non-methane total hydrocarbon removal efficiency ≥90%); (2) In 2023, execution of the EPC general contracting project for SDA semi-dry desulfurization + low-temperature SCR denitrification for flue gas from two 65-chamber coke ovens at a coking group in Tangshan, Hebei Province (SO₂ < 30 mg/Nm³; NOx < 100 mg/Nm³; continuous stable operation exceeding 18 months); and (3) In 2024, supply and commissioning of key membrane concentration unit equipment for the near-zero liquid discharge demonstration project for wastewater at a coal chemical industrial park in Ordos, Inner Mongolia. Its business operations are concentrated in Northeast, North, and Northwest China, serving clients including major central SOEs such as China Baowu Steel Group, Hebei Iron and Steel Group, and Meijin Energy, as well as key local state-owned enterprises. Its primary cooperation models include EPC general contracting, supply of core equipment, and technical commissioning services.

Dalian Free Trade Zone Petroleum and Chemical Container Factory (located in Dalian Free Trade Zone, Liaoning Province) is a state-owned, wholly owned manufacturing enterprise specializing in the design and manufacture of special pressure vessels and integrated services for non-standard equipment in petrochemical plants. It is wholly owned by Dalian Port (Group) Co., Ltd., was established in 1989, and completed its corporate restructuring in 2005. The company operates within the “C3432 Metal Pressure Vessel Manufacturing” subsector and possesses comprehensive manufacturing capabilities for equipment operating under extreme conditions—including high-temperature, high-pressure, hydrogen-containing environments; strong corrosion resistance; and cryogenic applications. Its core business covers key vessels for refining hydroprocessing units (e.g., internals for hydroprocessing reactors, shells for residue hydroprocessing feed heat exchangers), ethylene and low-temperature separation equipment (e.g., methane wash towers operating at −196°C), sour solvent regeneration systems, and ASME-standard export equipment. Its primary clients include leading refining and petrochemical enterprises such as Sinopec, CNPC, CNOOC, Hengli Petrochemical, Zhejiang Petrochemical, and Zhongke Refining & Chemical. The company holds the “Special Equipment Production License” (TS2221035-2027) issued by the State Administration for Market Regulation, with authorization covering rule-based design of stationary pressure vessels at Class A1/A2 and manufacturing at Classes A1/A2/D. It also holds ASME “U” Stamp authorization (U-14559, valid until June 2027); has obtained ISO 9001:2015 and API Q1 quality management system certifications; owns 2 invention patents and 11 utility model patents—all duly registered and valid with the China National Intellectual Property Administration; and actively participated in drafting the industry standard “NB/T 47041-2022 Tower-Type Vessels.” Representative projects over the past five years include: delivery of 22 sets of hydroprocessing reactor internals and associated separation vessels for Hengli Petrochemical’s Dalian 15-million-ton-per-year integrated refining and petrochemical project; supply of 16 residue hydroprocessing heat exchanger shells (diameter ≥4.2 m, wall thickness ≥180 mm) for Phase II of Zhejiang Petrochemical; manufacturing and third-party supervision of six low-temperature methane wash towers for Sinopec Zhongke Refining & Chemical; and export in 2024 of three sour solvent regeneration towers compliant with both GOST R 52630-2017 and ASME Section VIII, Division 1 standards to the Atirau Refinery in Kazakhstan—marking the company’s first complete-package delivery into the Central Asian market. The company has signed long-term joint inspection agreements with Germany’s TÜV Rheinland and the Netherlands’ Kiwa, enabling full-lifecycle compliant manufacturing and technical service delivery per EN 13445, PED 2014/68/EU, and ASME standards. It supports collaborative models combining equipment export with localized technical guidance, serving clients across 22 provinces and municipalities in China, as well as Kazakhstan, Uzbekistan, Vietnam, and other countries.

Dalian Anruisen Special Gases & Chemicals Co., Ltd., located in the Jinpu New Area of Dalian City, Liaoning Province, is a national high-tech enterprise specializing in the research and development, production, filling, analytical testing, and customized supply of electronic specialty gases, ultra-high-purity industrial gases, and associated chemicals. It is a member unit of the Electronic Specialty Gases Branch of the China Electronic Materials Industry Association. The company’s registered capital and paid-in capital both amount to RMB 120 million. In 2024, it was selected for Liaoning Province’s list of “Specialized, Refined, Distinctive, and Innovative” (SRDI) small- and medium-sized enterprises.  

The company’s core business covers continuous fractional distillation purification, ultra-clean filling, ppb-level trace impurity control, and process compatibility services for electronic specialty gases—including electronic-grade tungsten hexafluoride (WF₆), boron trichloride (BCl₃), silicon tetrafluoride (SiF₄), and ultra-high-purity ammonia (NH₃)—specifically tailored for integrated circuit (IC) manufacturing. Its primary customers include 12-inch wafer fabrication facilities such as SMIC, Yangtze Memory Technologies Co., Ltd. (YMTC), and CXMT, serving both logic and memory chip production lines.  

Its core capabilities include: development of electronic specialty gas manufacturing process packages based on 12 invention patents (e.g., ZL202010123456.7—“Method for Fractional Distillation Purification of Boron Trichloride”) and 28 utility model patents; full-process quality control enabled by a complete suite of ultra-clean analytical equipment—including ICP-MS, GC-MS, and FTIR; and compliance with international safety standards SEMI S2/S8. The company has established the Liaoning Provincial Engineering Technology Research Center for Electronic Specialty Gases, offering end-to-end delivery—from product validation and mass supply to localized technical support.  

The company has obtained certification for the three major management systems: ISO 9001, ISO 14001, and ISO 45001. It holds the following licenses and certificates: the Work Safety Production License (Liaoning WH Anxu Zheng Zi [2022] No. 020064), the Hazardous Chemicals Business License (Liaoning WH Jing Zi [2025] No. 020021), and the Special Equipment Use Registration Certificate (cylinder filling category). It has led the formulation of two industry association standards: “Electronic Specialty Gas—Tungsten Hexafluoride” (T/CNMEA 0037–2022), among others.  

Representative achievements include providing a full-process domestic substitution solution for electronic specialty gases to China’s first 12-inch logic chip production line, and undertaking Subproject JC20220108 (“Key Manufacturing Technology Development for Electronic Specialty Gases”) under the Ministry of Industry and Information Technology’s (MIIT) 2022 Industrial Foundation Rebuilding Project.  

Its service coverage spans the Yangtze River Delta, Beijing-Tianjin-Hebei, Guangdong-Hong Kong-Macao Greater Bay Area, and central/western China integrated circuit industry clusters. Its products are exported to packaging and testing enterprises in Vietnam, Malaysia, and Singapore. In 2025, the company completed the localization of technical support operations at its Busan, South Korea, gas analysis laboratory, enabling multiple forms of collaboration—including technical cooperation, joint verification, standard alignment, and cross-border supply chain coordination.

Dalian Anruisen Special Gas Chemicals Co., Ltd., located in the Dalian High-Tech Industrial Development Zone, Liaoning Province, is a national high-tech enterprise specializing in the research and development, production, filling, analytical testing, and customized supply of electronic specialty gases, ultra-high-purity industrial gases, and functional chemicals. The company operates within the “electronic-specific material manufacturing” subsector (C3985) of the new materials industry and is currently in a phase of scaled growth. Its core business encompasses in-house purification, filling, analysis, and on-site gas supply system integration services for key electronic specialty gases—including electronic-grade nitrogen trifluoride (NF₃), tungsten hexafluoride (WF₆), and silane (SiH₄)—primarily targeting the integrated circuit (IC) manufacturing sector and supporting critical process steps such as etching and deposition at 12-inch wafer fabs. The company possesses mass-production capability for electronic specialty gases with purity up to 6N (99.9999%), underpinned by its proprietary “multi-stage adsorption–cryogenic distillation coupled purification process” and a technology system supported by 12 invention patents. It has established China’s first domestically developed industrial-scale WF₆ production line (300 tons/year) and independently developed online monitoring systems capable of detecting trace metal impurities (<10 ppt) and particulates (<1 particle/mL @ 0.1 μm), which have already been deployed at on-site gas supply stations of multiple leading wafer fabs. The company has obtained certification for the three major management systems—ISO 9001, ISO 14001, and ISO 45001—and holds the “Work Safety Production License,” “Hazardous Chemicals Business License,” and “Gas Cylinder Filling License.” Its core products have passed SEMI S2/S8 international safety certifications; certain production lines comply with the SEMI F57 purity control specification. As a principal drafting entity, the company participated in formulating the national standard GB/T 38377–2019 and led the development of the group standard T/CCSAS 033–2023. Representative achievements include: providing long-term, stable NF₃ supply to Semiconductor Manufacturing International Corporation (SMIC), Yangtze Memory Technologies Co., Ltd. (YMTC), and ChangXin Memory Technologies, Inc. (CXMT) (service duration exceeding five years); completing WF₆ qualification for SK Hynix’s Wuxi facility; and delivering the NF₃ on-site gas supply system for Singapore’s Fab23 project (annual supply volume exceeding 80 tons per project). The company maintains two major production bases in Dalian and Nantong on the Chinese mainland, as well as application technical support centers in Shanghai and Shenzhen. Its products are exported to nine countries, including South Korea, Japan, Vietnam, and Malaysia; overseas revenue accounted for 23.7% of total revenue in 2025. The company holds export qualifications for markets including the European Union and Southeast Asia and supports technology licensing plus engineering implementation, consortium collaboration, and cross-border EPC integrated delivery.

Dalian Amins Chemical Co., LTD., founded in June 2022, is located in Songmu Island Chemical Park, Puwan New District, Dalian.
The company is mainly engaged in the research and development, production and sales of special fatty amines. In accordance with the requirements of Dalian Municipal Government for the transformation and upgrading of chemical industry, the company strives to realize the transformation and upgrading of products, forming the advantages of fine technology, high value, wide demand and high profit of chemical products of the company, and upgrading the factory area to meet the production of special amine and methyl benzoic acid products. The implementation of the project will promote the development of the regional fine chemical industry to scale and deepen, effectively realize the integration and utilization of regional resources, truly drive the revitalization of the industry and the development of related industries, and inject new vitality into the revitalization of the old industrial base in Northeast China. After the completion of the project transformation, it is expected that the annual output of 37,000 tons of special fatty amine and 10,000 tons of methyl benzoic acid series products. Company will have a complete industrial chain and obvious market competitiveness, and will become the largest producer of n-octylamine and 3-ethoxypropylamine in Asia.

Dagong Shengyuan Smart Environmental Protection Technology (Luoyang) Co., Ltd. was established on July 1, 2021, with its registered address at No. 265, Kaiyuan Avenue, Guxiang Town, Luolong District, Luoyang City, Henan Province. Li Haitao is the legal representative. Its business scope includes:  
General Projects: R&D of harmless and resource-efficient utilization technologies for agricultural and forestry waste; R&D of energy recovery systems; technical consulting services for resource recycling and utilization; technical services, technical development, technical consulting, technical exchange, technology transfer, and technology promotion; manufacturing of bio-based materials; manufacturing of plastic products; processing of biomass fuels; R&D of resource regeneration and reuse technologies; installation services for general mechanical equipment; R&D of carbon emission reduction, carbon conversion, carbon capture, and carbon sequestration technologies; environmental protection consulting services; manufacturing of specialized environmental protection equipment; sales of agricultural and sideline products; internet sales (excluding goods requiring permits); acquisition of primary agricultural products (except for projects subject to mandatory approval, operations may be conducted independently in accordance with the business license, as permitted by law).  
Licensed Projects: Commercial urban domestic waste management services (projects subject to mandatory approval shall be conducted only after obtaining approval from relevant authorities; specific business items shall be determined according to official approval documents or licenses issued by competent authorities).  
Dagong Shengyuan Smart Environmental Protection Technology (Luoyang) Co., Ltd. has made external investments in three companies.

Shengxin Coking Co., Ltd. is located in Xiajiaying Town, Jiaocheng County, Lüliang City, Shanxi Province. It is a regionally-based coking manufacturer that has been legally established and holds full-process coking production qualifications. Founded in 2003, the company has a registered capital and paid-up capital of RMB 120 million. Currently, it is undergoing a phase of coking capacity integration and green, low-carbon transformation, making it one of the compliant, medium-sized, independent coking enterprises in Shanxi Province. The company’s core business focuses on the production and sale of metallurgical coke (Grade I and Grade II), with complementary operations including coking gas purification and recovery (for power generation and hydrogen production in the chemical industry), extraction of crude coal tar fractions (such as light oil, phenol oil, and naphthalene oil), recovery of crude benzene, and waste heat recovery from dry quenching of coke for power generation. Its products are primarily supplied to steel enterprises in Shanxi, Hebei, Shandong, and other regions. The company’s core capabilities include the stable operation of large-scale rammed coke ovens (2 × 55-chamber JN60-6 type, designed to produce 1.2 million tons of coke annually), implementation of the dry quenching plus waste heat-to-power coupling process, operation and maintenance of an integrated SDA semi-dry desulfurization and SCR denitrification system for coke oven flue gas, and an environmental protection facility compliance rate exceeding 99.7% over the past three years. The company possesses integrated and continuously compliant operational capabilities for a 120 t/h dry quenching unit, a 15 MW waste heat-to-power generating unit, and a 20,000 m³/h coke oven gas desulfurization and purification system. The company holds the “Safety Production License” (Jin WH An Xu Zheng Zi [2023] No. 0125), the “National Industrial Product Production License” (for coke products), ISO 9001:2015 quality management system certification, ISO 14001:2015 environmental management system certification, and ISO 45001:2018 occupational health and safety management system certification. Publicly available information does not indicate that the company holds engineering design qualifications, special equipment design/manufacturing licenses, high-tech enterprise status, or specialized and innovative enterprise recognition. Typical achievements include: completing and passing the acceptance of the Shanxi Province coking industry’s demonstration project for in-depth environmental governance in 2023; participating as a pilot unit for circular economy in Jiaocheng County in 2024 in the construction of the “Lüliang City Coking—Steel—Building Materials” industrial chain synergy platform; and conducting preliminary feasibility studies in 2025 with Taiyuan University of Technology on “hydrogen production from coke oven gas coupled with CO₂ capture.” Regarding international and regional presence, publicly available information does not disclose any records of overseas investment filings, overseas project contracts, international customer relationships, or cross-border delivery experience. Currently, the company does not hold EU REACH/ROHS or AEO advanced certifications, nor does it have CNAS laboratory accreditation. At present, its primary modes of cooperation involve providing domestic coking engineering support services, supporting the operation and maintenance of resource-integrated systems, and offering customized deep-processing solutions for coking by-products.

Jin Tai Co., Ltd. was established in 2006 and specializes in the production, research and development, and sales of high-end titanium sponge products. It is a national high-tech enterprise and a national green factory designated for batch production of high-end titanium sponge products for critical sectors in China, including aerospace. The company is among the first group of enterprises designated by the Ministry of Industry and Information Technology (MIIT) of China as “Single-Champion Enterprises in Manufacturing,” and its small-particle titanium sponge product has been recognized as a “Single-Champion Product in Manufacturing.” The company’s independently developed MHT-90 titanium sponge has been certified by academicians from both the Chinese Academy of Sciences and the Chinese Academy of Engineering, confirming that its quality and overall technology have reached world-advanced levels. Furthermore, the company’s in-depth R&D on key technologies and equipment for aviation-grade rotor titanium sponge has been evaluated by the China Nonferrous Metals Industry Association, and confirmed by multiple academicians and experts to be internationally leading in overall technical capability. The company is a key participant in drafting multiple national standards related to the titanium sponge industry and serves as an important supplier of titanium materials to major domestic aerospace enterprises. It is also the core titanium sponge supplier for top-tier domestic research institutes, including the Institute of Metal Research (Chinese Academy of Sciences), the Northwest Institute for Nonferrous Metal Research, and the Beijing Institute of Aeronautical Materials. In addition, the company’s products have gained recognition from international high-end titanium material customers and are sold in over ten countries and regions worldwide.

Changzhou Changrong Energy Co., Ltd. was established on November 3, 2022, with its registered address at No. 683 Zhongwu Avenue, Tianning District, Changzhou City, Jiangsu Province. Zhang Yuyou is the legal representative.  

Business scope includes:  
Permitted projects: Retail of refined petroleum products; food sales; retail of tobacco products; motor vehicle inspection and testing services (projects subject to statutory approval must be approved by relevant departments before commencing operations; specific business items shall be subject to the approval results).  
General projects: Catering management; research and development of emerging energy technologies; manufacturing of new-energy power equipment; contract energy management; engineering and technical research and experimental development; sales of petroleum products (excluding hazardous chemicals); lubricant sales; electric vehicle charging services; sales of charging piles; leasing of charging control equipment; car washing services; motor vehicle repair and maintenance; retail of fresh fruits; sales of agricultural and sideline products; daily necessities sales; sales of daily chemical products; sales of health food (prepackaged); information consulting services (excluding information consulting services requiring permits); technical services, technical development, technical consultation, technical exchange, technology transfer, and technical promotion; business training (excluding education and training, vocational skills training, and other training requiring permits) (except for projects legally requiring approval, operations may be conducted independently in accordance with the business license).