SHANGHAI LEJOIN POLYMER MATERIALS CO.,LTD.

Introduction

SHANGHAI LEJOIN POLYMER MATERIALS CO., LTD. (上海联景高分子材料有限公司) is a Shanghai-based polyurethane materials* company founded in 1998 and focused on the research, production, and technical development of **thermoplastic polyurethane elastomers (TPU) and **polyester polyols*. The company positions itself as a technology-oriented supplier serving industrial customers in China and export markets, with applications spanning **new energy, wires and cables, automotive, healthcare, electronics, sports and leisure, coatings, inks, adhesives, and elastomers.

Headquartered in Songjiang District, Shanghai, the company operates from the Maogang Industrial Park area and presents itself as part of China’s broader polyurethane materials ecosystem, where specialty polymers are increasingly used in performance-driven and regulated end markets. Its portfolio includes multiple TPU grades and modified materials, with product claims covering properties such as ultra-soft, foamable, photo/thermal stability, bio-based, flame-retardant, and chemical-resistant performance.

Lejoin has also received several Chinese industry and municipal recognitions, including designation as a high-tech enterprise, a national specialized and innovative “little giant” enterprise, and Shanghai-level innovation-related honors. These credentials, together with certifications such as ISO 9001, ISO/TS 16949, ISO 14001, and OHSAS 18001, suggest a business model built around quality management, industrial compliance, and application development rather than commodity plastics production.

History and Development

Shanghai Lejoin Polymer Materials was established in 1998. From the beginning, the company focused on polyurethane product research and manufacturing, reflecting the growth of specialty elastomers and polyols in China’s industrial materials sector.

Several development milestones stand out:

• 1998: Company founded in Shanghai with a focus on TPU and related polyurethane materials.
• 2014: The company states that it became a Shanghai high-tech certified enterprise, strengthening its positioning as a technology-based materials producer.
• Recent years: The company has emphasized innovation in specialty TPU grades and polyester polyols, while also gaining recognition as a national specialized and innovative “little giant” enterprise and receiving district-level technology-center and patent-pilot honors.

Publicly available reporting also indicates that the company has participated in export trade, including shipments to Vietnam, which suggests a limited but real international commercial footprint.

Business Operations and Segments

Lejoin’s business is centered on two closely related material families:

• TPU and modified TPU materials
• Polyester polyols

The TPU business appears to be the company’s core segment, supported by technical service, product customization, and downstream application development. The company describes itself not only as a materials supplier but also as a partner providing market consulting, technical support, and broader industrial-chain services.

Core operating themes

• Material development for targeted performance requirements
• Manufacturing and formulation of specialty polyurethane products
• Application support for industrial customers in regulated and performance-sensitive markets
• Commercial and technical services linked to the polyurethane value chain

This structure places the company in the specialty materials segment of the plastics industry, where customer-specific formulation and performance consistency are often more important than scale alone.

Products and Technologies

Lejoin’s product range includes several TPU and polyol categories.

Main product families

The company’s product descriptions indicate that it works in performance tuning rather than only bulk production. In TPU markets, properties such as flame resistance, hydrolysis or chemical resistance, softness, and thermal stability are often decisive for qualification in cable jacketing, automotive components, and medical or electronic uses. Lejoin’s published portfolio is consistent with that type of application-driven formulation strategy.

The company also references technical development in polyurethane adhesives and thermosetting polyurethane elastomers, indicating broader capability in polyurethane-based compounds beyond standard TPU pellets or resins.

Applications and End Markets

Lejoin states that its TPU products are used in:

• New energy
• Wires and cables
• Automobiles
• Healthcare
• Electronics
• Sports and leisure

Its polyester polyols are marketed for:

• Coatings
• Inks
• Adhesives
• Elastomers
• Polyurethane foam systems

Industry relevance

These end markets reflect several broader trends in the plastics industry:

• The shift toward high-performance materials in electric mobility and energy infrastructure
• Growing demand for flame-retardant and durable cable materials
• Use of specialty elastomers in consumer and industrial products
• Continued demand for polyurethane intermediates in coatings and adhesives

Lejoin’s product mix therefore sits at the intersection of plastics, coatings, and polyurethane chemistry, rather than in basic packaging or general-purpose resins.

Global Presence and Market Position

Lejoin is primarily a China-based specialty materials producer with operations centered in Shanghai. Its public export data indicate a modest international trade presence, with recorded shipments to Vietnam and a relatively small volume compared with major multinational polyurethane suppliers.

Within the TPU market, external industry reporting places Shanghai Lejoin among a broader set of active suppliers alongside companies such as BASF, Covestro, Huntsman, Lubrizol, Wanhua Chemical, and others, indicating that it participates in a competitive segment that includes both multinational and domestic Chinese producers.

The company’s market position appears to be defined by:

• Specialized TPU and polyol formulations
• Application development support
• Domestic manufacturing with selective export activity
• Recognition in Shanghai’s technology enterprise system

Sustainability and Environmental Initiatives

Lejoin states that it holds ISO 14001 environmental management system certification and OHSAS 18001 occupational health and safety management system certification, alongside quality-management credentials.

The company also links its business philosophy to sustainable operation and “responsible care,” suggesting an emphasis on environmental and workplace management as part of its corporate identity.

From an industry perspective, such certifications are significant because polyurethane materials manufacturing can involve:

• Energy-intensive processing
• Handling of reactive chemicals
• Waste and emissions control requirements
• Compliance obligations for industrial facilities in China

Local government records identify the company as a key pollutant-discharge unit in Songjiang District environmental disclosure lists for 2023 and 2024, indicating that it is subject to heightened environmental oversight as part of municipal transparency and regulatory systems.

Financial Performance and Economic Impact

The company does not publicly disclose detailed financial results in the sources reviewed. As a result, its revenue, profitability, and capital expenditure profile cannot be stated reliably from available material.

Its economic impact is better understood through its role as:

• A specialty polymer supplier in Shanghai’s advanced materials cluster
• A producer of materials used in new energy and electrical infrastructure
• A participant in the regional polyurethane supply chain

This makes Lejoin relevant not only as a manufacturer but also as a supplier of enabling materials for downstream industrial sectors.

Leadership and Corporate Governance

Publicly available business information identifies the company as Shanghai Lejoin Polymer Materials Co., Ltd. with a registered address in Songjiang District, Shanghai, and it is associated with group-level branding under the Lejoin name.

The sources reviewed identify Cai Jianguo as a legal representative in one company profile, but the reviewed materials do not provide a full governance profile or detailed board structure. Because the available evidence is limited, any broader claims about ownership control or internal governance would be speculative.

Innovations and Future Outlook

Lejoin’s innovation profile is supported by its emphasis on:

• Specialty TPU grades
• Modified TPU materials
• Polyester polyol development
• Application-specific performance tuning
• Patent and technology-center recognition

A publicly reported Shanghai science-and-technology program entry also references Lejoin-related TPU products, including flame-retardant TPU variants, which suggests ongoing product development and municipal-level innovation support.

Likely strategic priorities

• Expanding into new energy and high-reliability cable materials
• Developing more flame-retardant and chemically resistant TPU grades
• Strengthening application support for automotive and electronics
• Deepening its role in polyurethane intermediate materials such as polyester polyols

Its future performance will likely depend on how effectively it can balance product differentiation, environmental compliance, and downstream qualification requirements in markets where TPU performance specifications are increasingly demanding.

References

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  CPS+ eMarketplace. (n.d.). SHANGHAI LEJOIN POLYMER MATERIALS CO.,LTD.SHANGHAI LEJOIN POLYMER MATERIALS CO.,LTD.. CPS+ eMarketplace. https://www.chinaplasonline.com/eMarketplace/ExhibitorInfo?CompId=1008909Link