Proficient in the two mainstream process routes: sulfuric acid production from sulfur and from pyrite. Among them, the 200,000-ton/year pyrite-to-sulfur process conversion has been certified as proprietary technology by an industry authority (China Petroleum and Chemical Engineering Design Association, 2008). In past performance, the 200,000-ton/year pyrite-to-sulfur conversion project and the 300,000-ton/year sulfuric acid project have both received provincial-level awards for excellent engineering design. Technical solutions can be flexibly configured based on the owner's sulfur resource endowment (sulfur or pyrite) and target production capacity, and can be integrated with downstream joint production projects such as phosphoric acid and phosphate fertilizers for overall technical planning. Full-process services extend from the process package to construction drawing design and commissioning guidance.

Donghua Engineering Science & Technology Co., Ltd. and the joint venture with China Chemical Engineering Corporation Middle East Company were awarded the contract for the ADNOC Ruwais Industrial Center ESPC 600,000 tons/year methanol project EPCC总承包 in September 2020. The contract value was US$394 million, marking a significant milestone for Donghua Engineering's entry into the ADNOC system.

Ningxia Langli New Materials Co., Ltd. is a high-tech enterprise specializing in the research and development, production, and sales of novel functional materials. It operates within upstream critical segments of China’s national strategic emerging industries—specifically, the “New Materials Industry” and the “New Energy Vehicle Industry.” The company’s core businesses include precursors for lithium-ion battery cathode materials (e.g., nickel-cobalt-manganese ternary precursors), electronic-grade fine chemicals, and specialty metal powder materials. Its products are widely applied in new energy power batteries, energy storage batteries, and high-end electronic components. Leveraging its provincial-level enterprise technology center, the company masters core technologies such as precise morphology and particle size distribution control of precursors via co-precipitation, and low-sodium/low-magnetic impurity control. It holds 12 authorized invention patents and 38 utility model patents; certain technical indicators have reached advanced domestic levels. The company has obtained certifications for ISO 9001 Quality Management System, ISO 14001 Environmental Management System, and IATF 16949 Automotive Quality Management System, thereby possessing qualifications to supply materials for automotive-grade battery supply chains. Its 20,000-ton-per-year ternary precursor production project was completed and commenced operations in 2023, representing a key new-materials industrialization initiative supported by Shizuishan City. Customers encompass leading domestic battery material manufacturers and multiple top-tier power battery enterprises; the company has already been integrated into the tier-two supplier systems of CATL and BYD. Currently, its business focuses on domestic markets in Northwest, East, and South China; it has no overseas direct investments or physical overseas operations. As a company listed on the National Equities Exchange and Quotations (NEEQ) (stock abbreviation: Langli New Materials; stock code: 873926), it provides upstream and downstream industrial chain partners with customized development of high-performance precursors, process collaboration and optimization, and stable large-batch supply services. It welcomes pragmatic cooperation in areas including R&D of new energy materials technologies, production capacity matching, and joint construction of supply chains.

Dalian Paint Co., Ltd. (headquartered in Dalian, Liaoning Province) is one of the earliest state-owned paint manufacturing enterprises established in the People’s Republic of China. It completed its corporate restructuring in 2001 and is currently a state-controlled enterprise under the jurisdiction of the Dalian Municipal Government, supervised by the Dalian Municipal State-owned Assets Supervision and Administration Commission (SASAC). The company is currently undergoing a strategic transformation—from traditional manufacturing toward green, functional, and intelligent coating services. Its core business focuses on high-end industrial coating system solutions, covering research & development, production, and full-lifecycle technical services for: heavy-duty anti-corrosion coatings (for ships, offshore engineering structures, bridges, and power infrastructure); OEM and refinish automotive coatings; energy-efficient architectural coatings; water-based eco-friendly industrial paints; and specialty functional coatings (e.g., fire-retardant, antistatic, and high-temperature-resistant coatings). Its products are widely applied across major central SOEs—including China State Shipbuilding Corporation (CSSC), China Railway Group Limited (CREC), State Grid Corporation of China, and Dalian Heavy Industry & Crane Group—as well as regional key infrastructure projects.  

The company hosts a provincial-level enterprise technology center and has accumulated 23 authorized invention patents and 47 authorized utility model patents. Among these, the “Preparation Process for High-Solids Epoxy Zinc-Rich Primer” and the “Solvent-Free Long-Term Anti-Corrosion Coating System for Wind Turbine Towers” have been industrialized and included in the Ministry of Industry and Information Technology’s (MIIT) “Guidance Catalogue for First-Batch Application Demonstration of Key New Materials (2024 Edition).” In 2023, it commissioned China’s first 10,000-ton-per-year fully automated water-based industrial coating filling line and jointly established the “Joint Laboratory for Marine Equipment Protective Materials” with the Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences.  

The company holds certifications for ISO 9001 (Quality Management), ISO 14001 (Environmental Management), and ISO 45001 (Occupational Health and Safety Management); possesses the “Safety Production License for Hazardous Chemicals” (Liaoning WHAQXZ No. [2023] 02-0089); and has obtained product certification from the China Classification Society (CCS), UL fire-resistance coating certification (UL 263/ASTM E119), and compliance verification under EU REACH and RoHS regulations.  

Representative projects include: continuous supply of steel-shell anti-corrosion coatings for the Dalian Bay Subsea Tunnel Project (2022–2025); provision of nuclear-grade fire-retardant coating systems for Units 5 and 6 of the Hongyanhe Nuclear Power Plant—verified to meet IAEA standards; and winning the bid in 2024 for the external anti-corrosion coating project of Phase II of the China–Russia Crude Oil Pipeline (Mohe–Daqing section), achieving large-scale application of domestically produced high-performance epoxy coal-tar pitch coatings in ultra-low-temperature environments down to –45°C.  

Public records indicate no involvement by the company in drafting international or national paint standards, nor any listing on A-share or Hong Kong stock exchanges. Its proprietary brand “DLCOAT” coatings are exported via OEM arrangements to Vietnam, Indonesia, Bangladesh, and Russia’s Far East region, with annual export revenue totaling approximately RMB 120 million (2025 customs statistics). These exports primarily support overseas infrastructure projects undertaken by Chinese state-owned enterprises. The company possesses capabilities in coating system design, construction guidance, and service-life assessment, and supports collaboration models including technology licensing plus engineering implementation and consortium partnerships.

Qingdao Joinsyn Technology Co., Ltd. is a science and technology-based small- and medium-sized enterprise specializing in the research and development of high-performance thermoplastic engineering plastics and composite modification, as well as small-batch pilot production. The company operates at the interface between new material technology R&D and industrial application, focusing on formulation design, blending alloying, and process adaptation for specialty engineering plastics such as polyphenylene sulfide (PPS) and polyether ether ketone (PEEK). Its core business includes manufacturing and sales of high-performance fibers and composite materials; R&D and production of engineering plastics and modified plastics; processing of rubber and metal products; and related technology and goods import/export. Its technological achievements are primarily reflected in high-temperature-resistant, anti-creep PPS composites and carbon nanotube-reinforced PPS/PEEK blended alloys. The company has filed two invention patents (both currently under substantive examination) and one utility model patent (“A Vacuum Vibratory Fluidized Bed Device for Drying Modified Plastic Granules”), demonstrating an integrated technical capability spanning material formulation to supporting equipment development. The enterprise is currently in the technology incubation and product validation stage, providing customized, non-standard modified material solutions for sectors including automotive lightweighting, electronic packaging, and high-end equipment manufacturing. Although it has not yet obtained certifications such as High-Tech Enterprise, “Specialized, Refined, Distinctive, and Innovative” (Zhuan Jing Te Xin), or ISO system accreditation, nor does it possess publicly disclosed large-scale mass-production facilities, revenue data, or representative customer case studies, its operations comply with regulations, its registration status is “in operation,” and it has no judicial risk records. Its service region is concentrated domestically, with no evident signs of cross-regional or international business expansion. Practical collaboration opportunities exist in areas including joint technology development, customized material pilot production, process optimization support, and import-substitution material solutions.

We can deploy a wide range of safety technology professionals, including safety evaluators, HAZOP facilitators, SIL assessment engineers, safety design review experts, fire protection design experts, and occupational health assessment experts. Our team includes a dedicated safety evaluation unit of approximately 30 personnel holding multiple professional qualifications such as safety evaluation, urban gas assessment, safety risk assessment, and safety auditing. We provide customized safety technical consulting services for chemical enterprises on demand, including: short-term on-site HAZOP reviews (typically 1–2 weeks), safety design reviews (aligned with basic or detailed design review milestones), guidance on safety management system construction, and safety culture training. For overseas chemical companies intending to enter the Chinese market, we also offer compliance consulting regarding Chinese safety regulations.

Ningxia Henghui Lufeng Technology Co., Ltd. is an information technology service enterprise specializing in the intersection of industrial digitalization and energy conservation & environmental protection. Based in Ningxia, the company provides technical services—including software development, information system integration, information technology consulting, and data processing and storage support—to small- and medium-sized industrial enterprises. Its core business covers research and application of industrial internet technologies, intelligent control system integration, promotion of environmental protection and energy-saving technologies, sales of electronic special-purpose equipment, and retail of computer software and hardware. Its technical approach focuses on digital transformation of regional manufacturing industries, deployment of energy consumption monitoring systems, and provision of customized software solutions. Leveraging its professional positioning within the software and information technology services industry, the company possesses foundational implementation capabilities in data acquisition, system integration, and energy efficiency analysis within industrial scenarios. Currently in its early operational phase, publicly available information indicates that its primary clients are regional small- and medium-sized industrial enterprises, with project practices concentrated on localized technology adaptation and lightweight system construction. The company has no record of national or autonomous-region-level high-tech enterprise certification, “Specialized, Refined, Distinctive, and Innovative” (Zhuan Jing Te Xin) qualification, or intellectual property advantage certification; no ISO 9001 or CMMI system certifications have been identified; and no publicly disclosed model demonstration projects, major client cases, or cross-regional business expansion activities are evident. Potential collaboration areas include joint development of industrial digitalization solutions, integration of energy-saving and consumption-reduction systems, co-construction of environmental monitoring platforms, and collaborative provision of information technology services to regional small- and medium-sized enterprises.

China Chengda Engineering Co., Ltd. undertook Qatar's first PVC project, invested by QatarEnergy, as the EPCC general contractor for a 350,000-ton-per-year PVC plant. Construction commenced in April 2022, achieving a milestone of 5 million safe man-hours during the construction period, marking a historic breakthrough in Qatar's chlor-alkali industry.

Dalian Yongfeng Gas Co., Ltd., located in Ganjingzi District, Dalian City, Liaoning Province, is a high-tech enterprise specializing in the production, filling, storage, sale, and supporting technical services of industrial gases. It operates within the specialty gas subsector of the chemical raw materials and chemical products manufacturing industry and is currently in a stable development phase, with both its registered capital and paid-in capital amounting to RMB 5 million. The company’s core business includes the production and filling of oxygen, nitrogen, argon, carbon dioxide, acetylene, hydrogen, and mixed gases; it also engages in hazardous chemicals trading (under valid license), sales and maintenance of gas equipment, and primarily serves customers along the equipment manufacturing industry chain in Northeast China—including some suppliers for Dalian Heavy Industry & Crane Group, CRRC Dalian Locomotive & Rolling Stock Co., Ltd., and Dalian Shipbuilding Industry Group. The company possesses customized supply capabilities for small- to medium-batch, multi-variety gases applicable to coal chemical processing, high-end equipment manufacturing, precision welding, metal heat treatment, and medical gas supply. The enterprise has established standardized filling stations compliant with GB 50030-2013 “Design Code for Oxygen Stations” and GB 50177-2005 “Design Code for Hydrogen Stations,” equipped with an automatic gas analyzer (GC-9560-PDD) and a laser Raman spectroscopy purity detection system, enabling full-chain digital quality control—from raw gas inspection and filling process control to finished product release—thereby ensuring stable supply of high-purity industrial gases such as 99.999% electronic-grade nitrogen and 99.99% medical oxygen. The company holds the “Work Safety Production License” (Liaoning D Anxu Zheng Zi [2021] No. 02-0072), the “National Industrial Product Production License” (XK13-014-00045), and the “Gas Cylinder Filling License” (Liaoning Quality Supervision Special Equipment Permit Zi [2020] No. 02003), covering three categories of media: permanent gases, liquefied gases, and dissolved acetylene. It has also obtained ISO 9001:2015 Quality Management System Certification (Certificate No.: 00122Q41232R1M). Public records indicate no granted invention patents or national-level science and technology project approvals; nor does the company disclose any overseas investment, export activities, or overseas branches. Its business coverage is concentrated in southern Liaoning Province, centered on Dalian and extending to Yingkou, Anshan, Dandong, and other cities, operating under a service model combining “regional direct delivery” and “designated warehousing,” supporting standardized hazardous chemicals transportation and technical-coordinated delivery.

Customized technical retrofit solutions specifically developed for operating wet-process phosphoric acid plants, with the core objective of improving the recovery efficiency of fluosilicic acid from fluorine-containing tail gases. According to technical records, this technology is patent-protected and requires targeted development based on the specific operating conditions of each plant. The benefits of increased recovery rates include additional revenue from the sale of fluosilicic acid by-products (which can be further processed into hydrofluoric acid, potassium fluoride, etc.) and a reduction in fluorine-containing tail gas emissions. Services include the design of technical retrofit solutions and customized technology development. Deliverables consist of retrofit solution documents, construction drawings, operating guidelines, and patent authorization documents. The service period ranges from 2 to 14 months, depending on the scale of the retrofit.

Ningxia Changyi Clean Energy Co., Ltd. is a regional clean energy development enterprise specializing in the investment, construction, and operation & maintenance (O&M) of solar power generation projects, based in the Ningxia Hui Autonomous Region and serving local new energy development needs. The company’s core business involves the full lifecycle development and O&M management of utility-scale ground-mounted photovoltaic (PV) power plants. It has successfully commissioned two projects: the 80 MW agrivoltaic project in Hongsi堡 District, Wuzhong City, and the 40 MW grid-parity project in Shapotou District, Zhongwei City, with a total registered capacity of 120 MW—fully integrated into the Ningxia Power Grid dispatching system and demonstrating stable power generation and grid connection capability. These projects employ PERC bifacial modules, fixed-tilt adjustable mounting structures, and intelligent combiner box solutions, achieving an equivalent utilization hours figure exceeding 1,650 hours, compliant with technical standards for Class I solar resource zones in Northwest China. The company holds a Power Business License (License No.: 1041723-01725), Grade III General Contracting Qualification for Electric Power Engineering Construction (Certificate No.: D364123456), and a Level V Permit for Installation (Maintenance/Testing) of Electric Power Facilities, and has obtained ISO 9001:2015 Quality Management System Certification, covering the entire process of PV project development, construction, and O&M management. Current projects are primarily located in sunlight-rich areas such as Wuzhong and Zhongwei; principal partners include State Grid Ningxia Electric Power Company and local energy investment platforms, with all business activities confined exclusively to the autonomous region. Leveraging mature commercial equipment integration and localized, high-efficiency O&M as its core competencies, the company is committed to delivering compliant, reliable, and implementable PV asset O&M services, offering diverse cooperation models—including project partnerships, EPC support, entrusted O&M, and joint development—to local governments, energy investment entities, and grid companies.

Qikong Tanqing (Tangshan) Environmental Technology Co., Ltd. is a technology-based small- and medium-sized enterprise specializing in industrial carbon emission reduction and comprehensive environmental governance. Based in Tangshan, the company serves energy-intensive industries—including iron and steel, coking, and building materials—in southern Hebei Province, and is committed to promoting synergistic pollution control and carbon reduction in key industries. Its core businesses include carbon emission monitoring and accounting technical services, collaborative treatment of multiple pollutants in industrial flue gas, low-carbon process optimization consulting, and research & development and sales of environmental protection equipment. Its technological applications focus on carbon efficiency assessment and end-of-pipe treatment synergy scenarios within the iron and steel industry. Its core competencies include customized development of localized, process-level carbon accounting models and experience integrating industrial field data interfaces; it has independently developed the lightweight carbon flow analysis tool “CarbonLink-1.0”, which supports integration with existing DCS systems and enables hourly carbon intensity output. The company has been included in the Tangshan Municipal Ecological Environment Bureau’s “Recommended List of Technical Service Providers for Pollution Control and Carbon Reduction in Key Industries (Trial)” and participated in drafting and publishing the group standard “Guidelines for Process-Level Carbon Emission Accounting for Iron and Steel Enterprises in Tangshan City (T/TSIA 027–2025)”, providing practical technical support for local carbon management. It previously served as a consortium member in the Tangshan Port Group’s enclosed bulk cargo terminal VOCs + dust intelligent monitoring system construction project, responsible for carbon emission data modeling and dynamic accounting module development. Currently, the company is focused on regional market entry and technology validation; no inter-provincial service or international business activities have been publicly recorded. It offers technical consulting, module development, co-development of standards, and joint solution delivery to industrial enterprises, industrial parks, and large-scale infrastructure operation entities requiring digital carbon management, end-of-pipe treatment upgrades, or low-carbon process optimization.

China National Chemical Engineering No.7 Construction Co., Ltd. (CC7) has secured an EPC contract worth USD 1.99 billion for the global top three PVC complexes in the TA'ZIZ Industrial Zone in the United Arab Emirates. The project, with an annual production capacity of 1.9 million tons of PVC and related products, is scheduled for completion in Q4 2028.

Dalian Yongbao New Materials Technology Co., Ltd. is located in Yingchengzi Industrial Park, Ganjingzi District, Dalian City, Liaoning Province. It is a national high-tech enterprise and a Liaoning Province “Specialized, Refined, Distinctive, and Innovative” (SRDI) small- and medium-sized enterprise specializing in the research, development, production, and sales of high-performance functional ceramic materials and advanced structural ceramic components. The company’s registered capital is RMB 10 million, with paid-in capital of RMB 5 million; its current business status is active.  

The company’s core business focuses on customized development of silicon nitride (Si₃N₄), aluminum oxide (Al₂O₃), and silicon carbide (SiC)-based ceramic powders and structural components. Its products are widely applied in high-end manufacturing and chemical equipment critical applications, including semiconductor packaging substrates, motor bearing cages for new-energy vehicles, high-temperature sensor housings, aerospace hot-section components, and industrial wear-resistant structural parts.  

The company possesses full-process in-house production capabilities—from powder preparation and forming/sintering to precision post-processing—and is equipped with production lines for plasma milling, hot-press sintering, cold isostatic pressing, and high-precision CNC ceramic machining. It has established the Liaoning Provincial Engineering Technology Research Center for Functional Ceramic Materials. To date, the company holds seven authorized invention patents and twelve utility model patents; its technological achievements have been registered as Dalian Municipal Scientific and Technological Achievements (Registration No.: 2024-DS-037).  

The company is certified under ISO 9001:2015 and IATF 16949:2016 quality management systems. It holds RoHS and REACH compliance reports issued by SGS (Report No.: SGS-CNT-2025-882341), has been recognized as a National High-Tech Enterprise (GR202221000587), and awarded the title of Liaoning Province “Specialized, Refined, Distinctive, and Innovative” Small- and Medium-Sized Enterprise (Liaoning Industry and Information Technology Commission Notice on SMEs [2023] No. 182).  

Representative accomplishments include supplying silicon nitride ceramic wafer carriers to SMIC’s 8-inch wafer fab—validated via 2,000-hour high-temperature cyclic testing at 1,200°C—and delivering over 120,000 Si₃N₄ bearing cages in bulk to BYD’s Fudi Power. The company also participates in the sub-project “Research on Service Behavior of Advanced Structural Ceramic Materials under Extreme Environments” under China’s National Key R&D Program.  

According to statistics from Dalian Customs in 2025, the company exported functional ceramic components to Germany, South Korea, and Singapore, with a total export value of USD 2.86 million. Primary customers include Tier-2 suppliers to Bosch’s supply chain, ceramic packaging partners of Samsung SDI, and Advanced Ceramics Pte Ltd. in Singapore. Publicly available information does not indicate that the company holds foreign regulatory certifications such as EU CE marking, U.S. FDA approval, or ITAR authorization; nor does it disclose employee headcount, revenue scale, or specific R&D expenditure ratio.

Addressing the challenge of phosphogypsum storage in the phosphorus chemical industry, this technology converts phosphogypsum into two industrial products: sulfuric acid and cement, representing a circular economy process route. According to technical records, this technology offers significant economic attractiveness during periods of high international sulfur prices. Prerequisites for implementation include: first, the project site must have an adequate supply of coke; second, the sales issues arising from potential quality deviations in the co-produced cement must be considered in advance. Technical services cover the preparation of the process package, detailed engineering design, and commissioning guidance, with a cycle of approximately 3 to 12 months. This solution is recommended for phosphorus chemical industry owners facing significant pressure to dispose of phosphogypsum and having a high dependence on sulfur imports.