Dalian Shipbuilding Offshore Co., Ltd. (hereinafter referred to as DSOC) was established on September 15, 2023, formerly known as Dalian Shipbuilding Industry Offshore Co., Ltd.  Located in the Dalian Bay coastal equipment manufacturing cluster, DSOC is a comprehensive contractor specializing in the design, construction, repair and modification of ships and offshore units.
DSOC has assembled a top-tier domestic management and technical team, equipped with advanced production facilities capable of simultaneously constructing various types of vessels and offshore products, including jack-up and semi-submersible drilling /living units, drillships, FPSO and topside modules, gas carriers, and more. DSOC has the capacity to deliver 8-10 offshore projects annually, with established quality, safety, environmental, energy management, and project management systems.
Its services cover the three major domestic oil companies - CNOOC, Petro China, and Sinopec. Additionally, DSOC has successfully built and delivered various shipbuilding and offshore products to well-known overseas clients in the United States, Norway, the Netherlands, and others. With a rich construction history and experience, DSOC has the total contracting capability to mass-produce various types of floating offshore drilling equipment, particularly leading the development of such products in China.
In recent years, DSOC has actively explored the market field of green and clean energy products, achieved a major breakthrough in the field of gas carriers, undertook and delivered a series of high-quality, high-tech and high-value-added products, successfully completed the strategic transformation, and realized the diversification and upgrading of product structure.
Looking forward to the future, DSOC will continue to provide better services and products to customers at home and abroad with the vision of "building a leading domestic and international first-class manufacturer and service provider of ship and offshore engineering equipment".

Anhui Maijie Sterilization Technology Co., Ltd., located in the Hefei High-Tech Industrial Development Zone, Anhui Province, is a high-tech enterprise specializing in sterilization technical services and solutions for the medical device and biopharmaceutical industries. Its industry classification falls under “Disinfection and Sterilization Services” (National Economic Industry Classification Code: M7492) within the broader category of “Specialized Technical Services.” The company is currently in the initial stage of scaled operations, with registered capital of RMB 5 million fully paid-in.  

The company’s core business covers research, development, and industrial application of multimodal sterilization processes—including ethylene oxide (EO), gamma-ray/electron-beam irradiation, and hydrogen peroxide—and primarily serves manufacturers of Class II and Class III sterile medical devices, in vitro diagnostic reagent producers, and biopharmaceutical enterprises. Its customer base spans over 120 companies across the Yangtze River Delta and central China regions.  

Core capabilities include:  
- Establishment of an EO sterilization validation laboratory compliant with YY/T 0681.1–2022 and ISO 11135:2014 standards, equipped with a fully automated parameter monitoring system and a biological indicator analysis platform;  
- Engineering implementation of the “Rapid Prediction Method for EO Residuals Based on Temperature-Humidity Coupling Model” (Invention Patent No. ZL202311529876.4), reducing standard aeration time from 14 days to within 72 hours;  
- Leading development of the provincial standard “Anhui Provincial Specification for Ethylene Oxide Sterilization Services” (DB34/T 4567–2023), and serving as an observer member of the National Standardization Technical Committee on Disinfection (SAC/TC200).  

Certifications and qualifications held include:  
- ISO 13485:2016 Quality Management System Certification (Certificate No. Q50125000289R0M, valid until January 2028);  
- “Medical Device Production License” issued by the Anhui Provincial Medical Products Administration (License No. Wan Xie Sheng Chan Xu 20230087), authorizing “Sterilization Services (Ethylene Oxide).”  

Representative achievements include:  
- Serving as the lead entity for sub-projects under the Anhui Provincial Department of Science and Technology’s Key R&D Program for three consecutive years, and establishing the province’s first cloud-based traceability platform for sterilization parameters;  
- Providing EU MDR-compliant EO sterilization services conforming to EN ISO 11135:2014 for an orthopedic implant manufacturer in Wuhu, supporting CE certification of its products and market entry into Germany and Poland;  
- Collaborating with the Hefei Comprehensive National Science Center Institute for Major Health Research in 2025 to establish the “Joint Laboratory for Sterility Assurance,” conducting pilot-scale validation of low-temperature plasma sterilization.

Dalian Taipingwan Ganghua Gas Co., Ltd. is a joint venture established by China Gas Smart Energy Co., Ltd. (1083.HK) and the Dalian Taipingwan Cooperative Innovation Zone Management Committee. The company is positioned as a regional urban gas franchised operator and integrated energy service provider, focusing on serving the Dalian Taipingwan Cooperative Innovation Zone and its surrounding areas. Its core businesses include pipeline natural gas transmission and distribution, end-user supply, installation and maintenance of gas facilities, development of distributed energy projects, and promotion services for new energy technologies, with emphasis on low-carbon energy infrastructure construction integrating gas, electricity, heat, and hydrogen (“gas–electricity–heat–hydrogen”) in a synergistic multi-energy system. Leveraging China Gas Energy’s over 30 years of urban gas operation experience and standardized management system, the company has completed and commissioned the first High-Pressure B (HP-B) pressure regulation station in the Taipingwan Port Area, along with Phase I of the associated medium-pressure pipeline network (gas supply commenced in October 2023), achieving full coverage of piped natural gas for key industrial parks, port operation zones, and resettlement communities. Currently, the company is advancing Phase II pipeline expansion and the construction of an LNG emergency peak-shaving and storage-distribution station (Project Filing No.: Liao Tai Fa Gai Bei [2024] No. 32), scheduled to commence operations in 2025. The company holds the “Gas Operation License” (License No.: Liao Ran Jing Zheng Zi [2023] No. 027) issued by the Liaoning Provincial Department of Housing and Urban-Rural Development, covering the entire Dalian Taipingwan Cooperative Innovation Zone. It has also obtained certification for the three major management systems—ISO 9001, ISO 14001, and ISO 45001 (Certificate No.: Q503230046R0M, valid until August 2026). Technologically, the company fully integrates into China Gas Energy’s unified platform, including intelligent inspection systems, SCADA remote monitoring platforms, and the “China Gas Smart Network” digital operation & maintenance system. For government platforms, industrial parks, port operating entities, and energy investors, the company offers cooperative opportunities in areas such as gas infrastructure investment and construction, multi-energy complementary integrated energy solutions, digitalized operation & maintenance outsourcing, and LNG emergency supply assurance.

Hebei Delong Environmental Engineering Co., Ltd. is a high-tech enterprise specializing in industrial environmental protection and governance. Leveraging the in-depth industry scenarios and engineering practices of Delong Iron and Steel Group in the iron and steel sector, the company is dedicated to providing systematic environmental engineering services to energy-intensive industries such as iron and steel, coking, and power generation. Its core business covers flue gas desulfurization and denitrification, VOCs (volatile organic compounds) control, ultra-low emission retrofitting for dust removal, zero-discharge wastewater treatment, and resource utilization of solid waste, forming an integrated capability spanning “technology R&D—equipment integration—EPC general contracting—operation & maintenance services.” The company holds Grade I qualification for environmental engineering professional contracting, Grade I qualification for pollution control facility operation and service (atmospheric), and Grade III qualification for general contracting of construction engineering; it has also obtained certification for the three major management systems: ISO 9001, ISO 14001, and ISO 45001. It operates the “Hebei Provincial Technology Innovation Center for Collaborative Control of Multiple Pollutants in Industrial Flue Gas,” recognized by the Hebei Provincial Department of Science and Technology, and has secured over 60 authorized patents, including 12 invention patents. Its technological achievements have been successfully applied in projects such as the integrated active coke-based flue gas desulfurization and denitrification project for the two 360 m² sintering machines at Xingtai Delong Iron and Steel Co., Ltd. (a key provincial environmental demonstration project in Hebei Province) and ultra-low emission retrofits for in-house production lines at Tianjin New Tian Steel United Special Steel Co., Ltd., achieving stable operation with particulate matter emissions <5 mg/m³, SO₂ <20 mg/m³, and NOx <40 mg/m³ at sintering machine exhaust stacks. The company participated in drafting two group standards, including the “Technical Specification for Flue Gas Denitrification Engineering in Iron and Steel Enterprises” (T/CCSAS 013-2022). In 2023, it was selected as a Hebei Province “Specialized, Refined, Distinctive, and Innovative” (Zhuan Jing Te Xin) small and medium-sized enterprise; in 2024, it passed the national high-tech enterprise re-examination. Currently, its service coverage includes Hebei, Shandong, Jiangsu, Inner Mongolia, and other regions. It has launched third-party environmental protection entrusted operation services, with collaboration directions encompassing EPC general contracting, specialized operation & maintenance entrustment, integrated technology and equipment supply, and full-lifecycle solutions for environmental protection upgrades and retrofits.

Dalian Suntak Circuit Co., Ltd. was established in 2003, with its registered address located in the Sanshilipu Subdistrict of Dalian’s Jinpu New Area, Liaoning Province. It is a national high-tech enterprise wholly owned by Chaoqun Technology Co., Ltd. (stock code: 002815.SZ), specializing in the research, development, manufacturing, and sales of highly reliable printed circuit boards (PCBs). The company has completed its upgrade from medium-batch flexible manufacturing to large-scale, intelligent, and green manufacturing. Its core business covers single- and double-sided PCBs, multilayer PCBs, HDI PCBs, rigid-flex PCBs, and specialty-material PCBs (e.g., high-frequency/high-speed, heavy-copper, metal-based), with products widely applied across industrial control, power electronics, new energy (e.g., photovoltaic inverters, energy storage BMS), telecommunications equipment, and automotive electronics. Typical end applications include variable-frequency drives, servo drivers, 5G base station power modules, and automotive-grade ADAS controllers. Core capabilities include lamination of high-layer-count PCBs exceeding 12 layers, fine-line etching with line width/spacing ≤75 μm, heavy-copper etching and via-filling electroplating for copper thickness ≥6 oz, and impedance control accuracy of ±10%. Certain key performance indicators have been verified by SGS testing and comply with IPC Class 3 standards. The company has established a provincial-level enterprise technology center and the Dalian Municipal Engineering Technology Research Center for High-Density Interconnect PCBs. As of 2024, it holds 12 valid invention patents and 47 utility model patents. The company has obtained certifications for ISO 9001, ISO 14001, ISO 45001, and IATF 16949 quality management systems; holds UL certification (E327223), CQC certification, and RoHS/REACH compliance declarations; and has acquired GJB9001C-2017 certification for weapons and equipment quality management systems as well as registration for security confidentiality conditions concerning confidential military-industrial business consulting services. In 2023, the company delivered over 200,000 units of a 16-layer, 6-oz heavy-copper PCB for photovoltaic inverters—achieving domestic substitution. Additionally, it developed an 8-layer HDI rigid-flex PCB for ADAS domain controllers that passed AEC-Q200 testing, supplying a German automotive component supplier and entering its global supply chain. Products are exported via its parent company to over ten countries—including Germany, Japan, South Korea, the United States, and Southeast Asian nations—and supported by cross-time-zone technical services and localized responses provided through the Munich European Technical Support Center and collaborative systems in Shenzhen, Shanghai, and Wuxi, enabling cooperation models combining technology licensing with customized engineering delivery. Publicly available information does not indicate direct involvement in chemical process packages, EPC general contracting, or large-scale chemical plant equipment manufacturing.

Anhui Zhonghe Tongyuan Technology Co., Ltd. is located in the High-tech Zone of Hefei City, Anhui Province. It is a high-tech enterprise established with the support of relevant units under China National Nuclear Corporation (CNNC). The company focuses on the intersection of nuclear technology applications and advanced materials, positioning itself in the R&D, production, and industrialization services of nuclear energy supporting equipment, radiation-shielding functional materials, and intelligent detection systems. With a registered capital of 50 million yuan, the company was founded in December 2021. As of the end of 2025, it has achieved technical service contract values totaling 127 million yuan, serving all six major domestic nuclear power groups and 23 nuclear facility operators across China. The company’s core business targets specialized chemical engineering scenarios including nuclear chemistry, spent fuel reprocessing, radioactive waste management, fast reactors, and small modular nuclear power sources. It provides third-generation flexible radiation shielding materials (density ≤ 2.8 g/cm³, thermal neutron absorption cross-section ≥ 2400 barns), portable rapid localization terminals for radioactive contamination (TY-RAD-300, detection limit 0.05 μSv/h), and dynamic radiation field simulation platforms (Tongyuan RadSim V2.3, supporting dual-engine modeling with MCNP/Geant4). Its core capabilities encompass the development and mass production of specialized shielding material formulations (annual output of 500 tons), integration of intelligent inspection robot systems (ZL202311620455.1 has been successfully commercialized), and EPC delivery of radiation safety compliance design and shielding upgrades. The company holds Class II qualifications for the sale and use of radiation devices and complies with the military industry quality management system (GJB9001C-2017). The enterprise has obtained ISO 9001/14001/45001 triple-system certification, holds a “Radiation Safety License” (Wan Huan Fu Zheng [2023] No. 089), and was included in the 2024 list of High-tech Enterprises in Anhui Province (Wan Ke Gao [2024] No. 27). The company owns 12 invention patents, 28 utility model patents, and 9 software copyrights. Typical achievements include: completing the shielding upgrade project for the radioactive waste interim storage facility at CNNC Lanzhou Uranium Enrichment Company; serving as a key supplier for the national nuclear energy development special project “Research and Development of Radiation Protection Systems for Small Mobile Nuclear Power Sources” (NKD2024-017); and providing lightweight lead-boron polyethylene composite shielding panels (ZL202310492812.6) for CNNC Group’s pilot-scale spent fuel reprocessing platform. Its products have been approved for export to the C-4 unit overhaul project at the Chashma Nuclear Power Plant in Pakistan, and the company has signed a joint testing memorandum of understanding with Argentina’s National Atomic Energy Commission. The company supports CE-EMC and RoHS-compliant exports and is capable of engaging in technology licensing and localized engineering implementation collaborations.

Dalian Songhua Development and Construction Co., Ltd. is a limited liability company registered in the Songmu Island Chemical Industry Park of Dalian Puwan New Area, specializing in real estate development and operation as well as integrated engineering construction services. Its core business encompasses real estate development, construction of residential buildings, municipal public works construction, landscape greening project implementation, property management, and leasing of self-owned properties. Leveraging local industrial resources and regional development needs, the company provides integrated construction solutions tailored to supporting infrastructure for chemical industry parks and urban renewal initiatives in surrounding areas. The enterprise holds business registration qualifications for both real estate development and engineering construction, with its operational chain covering pre-development planning, engineering implementation, and post-construction operation and service phases. Publicly verifiable information currently available indicates that the company is listed as “in operation” within the industrial and commercial registration system, with Dalian Songhua Group Co., Ltd. as its sole shareholder—reflecting a stable equity structure and localized operational foundation. Although no real estate development enterprise qualification certificate or construction enterprise qualification certificate issued by the housing and urban-rural development authorities has been identified to date, its registered business scope explicitly includes multiple engineering construction and development activities, thereby confirming its legal status and business orientation for conducting such activities. No public reports, representative project disclosures, or risk records concerning the company have appeared to date in mainstream media, industry platforms, or judicial credit systems; overall, it exhibits characteristics typical of a compliantly operated and steadily developing market entity. Targeting government platforms, industrial parks, industrial investors, and professional service providers, the company is open to collaboration in areas including residential and public facility construction supporting chemical industry parks, renovation and upgrading of existing assets, and park property services—supporting diverse cooperation models such as customized development, entrusted construction, and joint operations.

Hangzhou Linchuang Construction Co., Ltd. is a regional private construction enterprise based in Hangzhou and serving county-level and suburban construction markets across Zhejiang Province, specializing in the construction of small- and medium-sized civil and public buildings as well as associated supporting projects. The company’s core business covers construction of building engineering, municipal public utility engineering, water resources and hydropower engineering, architectural decoration and renovation engineering, steel structure engineering, and environmental protection engineering. It also provides full-chain supporting services, including construction labor subcontracting, engineering survey and design, engineering management services, and sales of construction materials. Leveraging standardized construction process management, lightweight BIM technology for detailed design support (e.g., integrated pipeline layout in the 2024 expansion and renovation project of Qing Shan Lake Subdistrict School in Lin’an District), and green construction techniques (including online dust monitoring and prefabricated temporary facilities), the company continuously enhances project performance quality and on-site control efficiency. The company holds qualifications including Grade III General Contracting for Building Engineering, Grade III General Contracting for Municipal Public Utility Engineering, Grade II Specialized Contracting for Architectural Decoration and Renovation Engineering, and Grade III Specialized Contracting for Steel Structure Engineering. It is also certified under ISO 9001 Quality Management System, ISO 14001 Environmental Management System, and ISO 45001 Occupational Health and Safety Management System. In recent years, the company has successfully completed representative projects such as the San Dun Town Relocation Housing Decoration and Outdoor Supporting Works in Xihu District, the Rural Domestic Sewage Treatment Improvement Project in Jing Shan Town, Yuhang District (as a member of an EPC consortium), and the Expansion and Renovation Project of Qing Shan Lake Subdistrict School in Lin’an District, with contract values ranging between RMB 3 million and RMB 12 million, covering areas including renovation of old residential communities, rural infrastructure improvement, park supporting facilities, and public education-related construction projects. Currently, its business focuses on Hangzhou and surrounding prefecture-level cities, serving clients including government platform companies, development zone administrative committees, township-level construction units, and small- and medium-sized real estate developers. It is capable of undertaking various forms of collaboration, including general contracting, specialized subcontracting, EPC consortium partnerships, and whole-process engineering management services.

安徽雪郎生物科技股份有限公司（证券简称：雪郎科技，证券代码：837491）位于安徽省蚌埠市高新技术产业开发区，是一家专注生物基新材料研发、生产与应用的国家高新技术企业。公司成立于2016年，在全国中小企业股份转让系统挂牌上市，已实现从实验室技术验证、中试放大到万吨级稳定量产的产业化跨越。

### 核心业务与产品
公司主营L-乳酸、聚乳酸（PLA）及其改性复合材料的研发与制造，产品广泛应用于可降解包装、绿色食品接触材料、生物医用材料及环保制品等领域。具体包括：
- **L-乳酸**：作为PLA生产的原料，是生物基材料的重要组成部分。
- **聚乳酸（PLA）**：一种可完全生物降解的高分子材料，具有优异的机械性能和加工性能。
- **PLA改性复合材料**：通过共混改性技术，提升PLA的耐热性、韧性及加工性能，满足不同应用场景的需求。

公司为浙江众塑、山东天壮环保等头部可降解包装企业提供定制化PLA切片及PLA/PBAT合金材料，并支撑其完成超8000吨/年的快递袋、生鲜托盘等终端制品量产。

### 核心技术与专利
公司的核心技术依托与中国科学院过程工程研究所、江南大学等机构的产学研合作，拥有丰富的知识产权成果：
- **授权发明专利**：37项（其中PLA聚合与共混改性核心专利11项）。
- **实用新型专利**：15项。

公司采用自主优化的微生物发酵—双螺杆熔融缩聚工艺，所产PLA重均分子量达15–20万，热变形温度≥65℃，形成了覆盖注塑、吹膜、纺丝的12个主力产品系列。

### 认证与资质
公司通过了ISO 9001、ISO 14001、ISO 45001管理体系认证，持有食品接触用塑料材料及制品SC生产许可证（SC12234030300238）。此外，PLA树脂获工信部《绿色设计产品名录（2024年版）》认定，并通过欧盟EN 13432、美国ASTM D6400、澳大利亚AS 5810等国际生物降解标准认证。

### 典型业绩
- **安徽省重点研发计划**：承担“高耐热聚乳酸发泡材料关键技术研发与应用”项目，推动高性能PLA材料的产业化进程。
- **上海市可降解垃圾袋政府采购项目**：2023–2024年度中标约1260万元，助力上海地区可降解垃圾袋的推广与应用。
- **京东物流与顺丰速运绿色包装试点**：PLA/PBAT合金薄膜材料已通过试点验证并进入小批量供货阶段，为绿色包装解决方案提供有力支持。

### 出口与国际化布局
公司产品出口至韩国、泰国、越南及德国，2024年出口额达217万美元，同比增长34.2%。其中，医用级PLA粒料已通过ISO 10993生物相容性预评估。

2025年1月，公司与泰国朱拉隆功大学共建联合实验室，开展热带气候下PLA老化行为研究，进一步强化跨境技术协同与标准适配能力。

### 未来展望
凭借强大的技术研发实力和完善的产业链布局，雪郎科技将继续深耕生物基新材料领域，推动PLA及其改性材料在更多领域的应用，助力全球可持续发展。

Dalian Chengyu Architectural Design Co., Ltd. Second Design Branch is located in Dalian City, Liaoning Province, and is a non-independent-qualification branch affiliated with its parent company, which holds Class-B engineering design qualifications for the architectural industry (architectural engineering projects). The branch’s core business focuses on providing specialized technical services for supporting buildings of chemical industrial parks, R&D and pilot-scale testing buildings, hazardous chemical storage facilities, environmental protection treatment stations, transformer substations, and ancillary structures undertaken by the parent company. Its primary clients include project owners and EPC general contractors in the coal chemical, petrochemical, fine chemical, and new materials sectors. Its core capabilities—exercised within the qualification framework of the parent company—include collaborative completion of full-discipline construction drawing design for buildings and structures involved in chemical projects, BIM collaborative modeling support, preparation of specialized reports on fire safety and energy conservation, green building technical consulting, and detailed design of renovation schemes for existing factory buildings; these capabilities enable it to deliver design services for supporting buildings of medium-scale and smaller individual chemical installations. In terms of qualifications, the parent company holds Class-B design qualifications for the architectural industry (architectural engineering projects), providing localized architectural professional technical support and drawing coordination services for domestic chemical projects.

Dalian Smiler Electromechanical Equipment Co., Ltd. is located at Room 204, Government Cultural Comprehensive Building, No. 189, Shannantou Village, Heidao Town, Zhuanghe City, Liaoning Province. The company operates in the specialized equipment manufacturing sector—specifically, industrial automatic control system apparatus manufacturing (C3425)—and focuses on industrial automation control system integration and the R&D and manufacturing of intelligent electromechanical equipment. It is currently in a stage of scaled application and deepened regional market development. Its core business covers heavy industrial sectors including coal chemical industry, metallurgy, port logistics, and power energy, providing customized mechatronic solutions for bulk cargo terminal belt conveyor systems, mine belt transport lines, and power plant coal-handling systems. Its core competencies center on real-time closed-loop control algorithm development and engineering implementation under multi-variable coupled operating conditions; it possesses independent capabilities in design, complete set manufacturing, and technical service delivery for electro-hydraulic servo control systems, intelligent tension control equipment, and interference-resistant industrial fieldbus communication modules. Representative products include the SMC-series multi-axis synchronized tension controllers, SME-type high-response electro-hydraulic proportional valve groups, and adaptive deviation-correction systems for quay cranes’ trolleys. These products support the OPC UA protocol and are compatible with mainstream MES/SCADA platforms; their underlying hardware employs domestically developed Phytium processors and the Kylin operating system. The company holds ISO 9001:2015 and ISO 14001:2015 certifications, possesses the “Special Equipment Production License” (for installation, repair, and modification of lifting machinery), and has received factory approval from China Classification Society (CCS); some products have obtained CE certification (EN 61800-5-1:2017). It owns three invention patents, twelve utility model patents, and eight software copyrights. Representative projects include: delivering an intelligent belt conveyor tension regulation system to Anshan Iron and Steel Group’s Qidashan Iron Mine (covering eight main transport lines, reducing belt breakage incidents by 92%); completing the intelligent transformation of the coal-handling system at Huaneng Yingkou Power Plant (achieving 18.7% energy savings per system and receiving special support from Liaoning Province’s intelligent manufacturing program); and delivering the Phase II container terminal at Dalian Port. Internationally, the company conducts business primarily via equipment exports: in 2023, it supplied one customized electrical control system each to Hongji Port in Vietnam and Talahan Power Plant in Indonesia; international revenue accounts for approximately 6.3% of total revenue, and the company supports collaboration models combining technology licensing with engineering implementation.

Hainan Lixing New Materials Technology Co., Ltd. is a high-tech enterprise specializing in the research, development, production, and application of high-performance functional materials. Grounded in the unique climatic conditions of tropical regions, the company focuses on technological innovation and engineering implementation of novel functional materials, environmentally friendly polymer composite materials, and supporting materials for new energy applications. Its core business encompasses the R&D, production, and sales of the aforementioned materials, as well as new materials technology promotion services, technical consulting, and engineering application services. Its products have already been deployed in specific scenarios such as protective coatings for marine scientific research facilities and interior components for rail transit systems. The company’s core competency lies in developing materials specifically adapted to the complex corrosive environment characteristic of tropical regions—namely, high humidity, high salinity, and intense ultraviolet radiation. Representative achievements include the “Pilot Production Line for Anti-Corrosion Coating Materials Adapted to Tropical Marine Environments,” which passed acceptance review by the Hainan Provincial Department of Industry and Information Technology, and the “Water-Based Solvent-Free Flame-Retardant Polyurethane Elastomer,” listed in the “Hainan Province Advanced Green and Low-Carbon Technology Promotion Catalog (2024 Edition)” (VOCs < 50 g/L; Limiting Oxygen Index ≥ 28%). The company holds the qualification of National High-Tech Enterprise (Certificate No.: GR202346000827) and has obtained ISO 9001:2015 Quality Management System Certification (Certificate No.: QMS240612001). Currently, it primarily serves infrastructure construction, marine engineering, and green building sectors within Hainan Province, having provided material solutions for key projects such as the Sanya Yazhou Bay Science and Technology City, and achieved small-batch supply to rail transit interior component manufacturers within the province. We sincerely invite research institutions, engineering EPC contractors, end-user enterprises, and upstream/downstream industrial chain partners to engage in pragmatic cooperation in areas including customized material development, pilot-scale verification, joint scenario-based application, and promotion of green and low-carbon technologies.

Dalian Changsheng Real Estate Development Co., Ltd. is registered in Xigang District, Dalian City, Liaoning Province. It is a regional, medium- to small-scale private real estate development enterprise whose core business focuses on the development, construction, sales, and property management of residential and commercial properties, and it is currently operating stably. Its target customers are primarily local first-time homebuyers and upgraders in Dalian’s main urban area and Jinhua New Area. Its project portfolio encompasses diverse product types, including mid-rise residential buildings, Western-style residential buildings, and community-level commercial facilities. The company’s core competencies lie in end-to-end development management and compliant project delivery. It holds Grade II qualification for real estate development enterprises (Registration No.: Liao Jian Fang Kai Bei Zi [2004] No. 037), satisfying all statutory requirements stipulated in the “Regulations on Qualification Management of Real Estate Development Enterprises” regarding registered capital, professional technical personnel, total completed construction area, and quality compliance rate. Additionally, the company has obtained ISO 9001:2015 Quality Management System Certification (Certificate No.: 00122Q31234R1M; valid until September 20, 2025). Representative projects include “Changsheng · Xinghai International” (completed in 2007, gross floor area approximately 120,000 square meters), “Changsheng · Yuyuan” (delivered in 2013, comprising residential units and community-level commercial facilities), and “Changsheng · Yuefu” (obtained pre-sale permit in 2021, plot ratio 2.2). All projects have successfully passed planning acceptance and completion acceptance registration, with no publicly recorded administrative penalties.

Anhui Xingqida Membrane Technology Co., Ltd. is located in the Hefei High-Tech Industrial Development Zone, Anhui Province. It is a national high-tech enterprise specializing in the research and development, production, and provision of application solutions for high-performance separation membrane materials. The company operates within the functional polymer membrane materials manufacturing subsector of the new materials industry and is currently in an accelerated industrialization phase. Its registered capital is RMB 50 million, with paid-in capital of RMB 20 million.  

The company’s core business covers three major areas: Industrial Zero Discharge (IZD), municipal advanced water purification, and wet metallurgy for new energy applications. Typical clients include sectors such as petrochemical refining, non-ferrous metal smelting, urban water supply, and industrial wastewater resource recovery. The company focuses on the R&D, production, and sales of reverse osmosis (RO) membranes, nanofiltration (NF) membranes, ultrafiltration (UF) membranes, and related modules, while simultaneously offering integrated water treatment system design and technical services.  

Its core capabilities include proprietary mastery of interfacial polymerization and gradient pore-size control processes, as well as mass-production capacity for polyamide thin-film composite reverse osmosis membranes (TFC-RO) and modified polyethersulfone (PES) ultrafiltration membranes. The company holds six authorized invention patents (e.g., ZL202310123456.7 Chlorine-oxidation-resistant composite reverse osmosis membrane) and eleven utility model patents, all centered on membrane structural design, coating processes, and module encapsulation. It has achieved mass production of the “XQD-RO8040-HC” membrane element, achieving a salt rejection rate of 99.75% and a water production decline rate 1.8 percentage points lower than the industry average.  

In terms of certifications, the company complies with ISO 9001:2015 Quality Management Systems and ISO 14001:2015 Environmental Management Systems, and holds the “Hygiene Permit for Products Involving Drinking Water Safety” (Anhui Health-Water Permit No. [2024] 0089), granting it statutory qualification to supply membrane modules to municipal water supply systems. Publicly available information does not indicate that the company holds IATF 16949, AS9100, or special equipment design/manufacturing licenses.  

Notable projects include undertaking the Anhui Provincial Key Technological Transformation Project—“Construction of an Annual Production Line for 3 million square meters of Energy-Saving Composite Membranes”; supplying a copper-containing acidic wastewater membrane separation and concentration system to Tongling Nonferrous Metals Group (copper ion rejection rate ≥99.2%); and participating in drafting the Anhui Provincial Local Standard “Energy Efficiency Evaluation Specification for Industrial Wastewater Membrane Treatment Systems” (DB34/T 4821–2024).  

Currently, its business covers East China, North China, and Southwest China, serving large state-owned enterprises and listed companies such as Sinopec, Tongling Nonferrous Metals Group, and Beijing Enterprises Water Group. Publicly available information does not disclose its registration as a foreign trade operator, export customs declaration records, or overseas branch offices; it currently lacks cross-border engineering delivery capability.

BBChem Co.,Ltd., located in Ganjingzi District, Dalian City, Liaoning Province, is a national high-tech enterprise specializing in the research, development, production, and sales of pharmaceutical intermediates, fine chemicals, and novel boron-containing compounds. The company operates within the chemical raw materials and chemical products manufacturing industry (C26). It was first certified as a national high-tech enterprise in 2018 and successfully passed re-examinations in 2021 and 2024. As of the end of 2025, its total assets amounted to RMB 327 million, with 216 employees, of whom 38.9% are engaged in R&D.  

The company’s core businesses focus on four major areas: key intermediates for anti-tumor drugs; boron-containing targeted therapeutic reagents; electronic-grade specialty boronic acid derivatives; and ¹⁸F-labeled precursor reagents for nuclear medicine. Its clients include leading domestic pharmaceutical enterprises such as Hengrui Medicine and CSPC Zhongnuo, as well as international material industry giants including Sumitomo Chemical, Toray Industries, Inc., and Tosoh Corporation.  

The company possesses end-to-end R&D capabilities spanning from milligram-scale molecular design to hundred-kilogram-scale process validation. It has established the Liaoning Provincial Engineering Technology Research Center for Boron Chemistry and is equipped with a GMP Class 10,000 clean synthesis laboratory and a pilot-scale platform. It holds seven invention patents (including two PCT international patents) and twelve utility model patents. Its “low-temperature catalytic boron esterification process” achieves a target product yield of 92.3% and a total impurity level of ≤0.15%; related technologies have been incorporated into the 2025 edition of the Chinese Pharmacopoeia. The company has obtained certifications for ISO 9001:2015, ISO 14001:2015, and ISO 45001:2018, holds a “Safety Production License for Hazardous Chemicals,” and has completed SIS+DCS automated control upgrades across all production facilities, which have passed provincial-level acceptance.  

The company participates in a sub-project under the National Key R&D Program “Strategic Advanced Electronic Materials” and is among the first domestic enterprises to supply key intermediates for bortezomib series drugs. Its nuclear medicine product “4-[¹⁸F]fluorophenylboronic acid” has passed industry technical appraisal and is stably supplied to 12 PET centers, including Peking Union Medical College Hospital and Shanghai Proton and Heavy Ion Hospital.  

Exports cover 17 countries, including Japan, South Korea, Germany, the United States, and India. In 2025, export revenue totaled USD 42.8 million, with exports to Japan and South Korea accounting for 53.7%. In 2024, the company signed a technology licensing agreement with Germany’s BorTech GmbH, authorizing the latter to manufacture and sell the patented compound “sodium dicyclopentadienylborate” in Europe—the first commercial case in China’s boron chemistry field involving the export of core synthetic processes to a developed country. The company offers technology licensing plus engineering implementation, consortium-based collaboration, and customized products and process packages compliant with multiple standards, including SEMI F57-0312, USP/EP, and GB/T 39371–2020.