DONGGUAN LONGSUN MATERIAL TECHNOLOGY CO.,LTD

Introduction

Dongguan Longsun Material Technology Co., Ltd. (东莞市朗晟材料科技有限公司) is a Chinese polymer materials manufacturer focused on insulating, fire-resistant, and environmentally friendly silicone-based and polymer new materials for industrial applications, especially wire and cable, new energy vehicles, smart wearables, and consumer electronics. Founded in May 2011 and based in Chashan Town, Dongguan, Guangdong Province, the company presents itself as a research, manufacturing, sales, and service enterprise with a modern production site of nearly 20,000 square meters and a workforce of around 200 employees.

Longsun’s core business centers on silicone rubber compounds, ceramifiable fire-resistant materials, liquid silicone rubber, thermoplastic elastomer formulations, and related high-end polymer products. It is also described by company and industry sources as a national high-tech enterprise and a specialized and new “Little Giant” enterprise, with participation in drafting Chinese and regional wire-and-cable standards and a portfolio of patents supporting product development and import substitution.

History and Development

Longsun Material was established in 2011 in Dongguan, entering a market in which China’s wire-and-cable, electronics, and automotive supply chains were increasingly demanding higher-performance elastomeric materials. Early company materials indicate that it concentrated on silicone materials and cable-related new materials, later broadening into a wider polymer materials portfolio.

A notable development milestone was the company’s work on ceramifiable fire-resistant silicone rubber, which company and local-government reporting identify as a key product line and an important factor in its position in the fire-resistant cable market. Local reporting also states that the company developed this technology through sustained R&D, aiming at applications where insulation retention and fire resistance are critical.

A second milestone was its expansion into new-energy vehicle materials, including products for vehicle interior wiring and battery pack insulation and flame-retardant applications. This shift aligned the company with China’s fast-growing electric-vehicle ecosystem and with the need for materials that can withstand higher temperatures, electrical stress, and stricter safety requirements.

A third milestone was the company’s recognition as a specialized and new enterprise and later inclusion in the national “Little Giant” category, reflecting policy support for technologically focused small and medium-sized manufacturers. Sources also indicate that the company continued to build its patent base and R&D capacity, including work toward provincial engineering and R&D platforms.

Business Operations and Segments

Longsun describes itself as an integrated enterprise covering R&D, production, sales, and service. Its operations are organized around polymer materials used in demanding electrical, thermal, and safety-critical environments.

Its business scope, as reflected in registration data, includes the research, production, processing, wholesale, and retail of silicone materials, polymer materials, composite materials, flame-retardant materials, fire-resistant materials, cables, and related products.

The company’s main operational emphasis appears to be:

• Cable and wire materials, particularly silicone rubber systems for insulation, sheath, and fire protection.
• Automotive and new-energy materials, including applications for vehicle wiring and battery-pack environments.
• Consumer and electronics materials, especially for smart wearables and 3C products.
• Food-contact and household-related applications, including products such as food-grade tableware and related silicone goods.

Products and Technologies

Longsun’s product portfolio is built around silicone rubber and advanced polymer formulations. Company materials and third-party listings indicate several major product families.

Company materials state that Longsun has developed ceramifiable silicone rubber for extrusion and molding, as well as HTPVSi silicone rubber thermoplastic elastomer and liquid silicone rubber leather. Local reporting says these newer materials are intended for smart wearable devices, charging cables, smartwatch straps, and other flexible consumer-electronics components.

The company also states that it has obtained multiple invention and utility-model patents, and that some of its technical indicators have surpassed domestic peers and supported import substitution in selected niches. One company source says it holds 11 invention patents and 6 utility-model patents, while another industry report cites a broader patent tally that includes pending applications; the exact count varies by source and date.

Applications and End Markets

Longsun’s materials are used in sectors where thermal stability, flame resistance, electrical insulation, and environmental performance are essential.

Major end markets include:

• Wire and cable
• New-energy vehicles
• Smart wearables
• 3C electronics and consumer devices
• Food-contact products
• Baby and childcare products
• Industrial and specialty elastomer applications

The company has placed particular emphasis on new-energy vehicle wiring and battery-pack insulation materials, areas where higher voltage, higher temperature, and tighter safety standards increase material requirements. It also cites use in wearable intelligent electronics and flexible electronic accessories, indicating a move toward lighter, more multifunctional elastomers.

Global Presence and Market Position

Longsun states that it has built a marketing and service network centered on the Pearl River Delta and extending across China and overseas markets. Public company materials describe its products as sold domestically and internationally, although no independently verified breakdown of export share is available in the sources reviewed.

Within China, Longsun appears most strongly positioned in the specialized silicone and fire-resistant cable materials niche, rather than as a broad commodity polymer producer. Local reporting describes it as one of the domestic suppliers qualified for certain new-energy vehicle silicone applications, a segment with technical barriers and relatively limited supplier participation.

The company’s role in drafting national and regional standards for wire-and-cable silicone rubber and ceramifiable fire-resistant materials suggests influence that extends beyond its own sales base into the broader Chinese materials ecosystem.

Sustainability and Environmental Initiatives

Longsun presents its business as centered on environmentally friendly polymer materials and on products intended to improve durability, safety, and service life in demanding applications. That positioning aligns with broader industry trends toward lower-toxicity, longer-life, and more energy-efficient materials in cables, vehicles, and consumer products.

Its sustainability narrative is mainly expressed through:

• Development of environmentally friendly polymer new materials.
• Use of fire-resistant and insulating materials that can improve safety and reduce failure risk in electrical systems.
• Work on materials for new-energy vehicles, which are part of China’s low-carbon industrial transition.

Available sources do not provide a detailed public environmental, social, and governance report, emissions inventory, or verified life-cycle assessment. As a result, Longsun’s sustainability profile is best understood through its product focus rather than through disclosed quantitative environmental metrics.

Financial Performance and Economic Impact

Publicly available financial data are limited. One industry source reported sales of about 2.5 billion yuan in 2021, while local media reporting said the company expected revenue to reach 4 billion yuan in 2024 and 5.5 billion yuan in 2025; these figures should be treated as company-reported targets or media-reported expectations rather than independently audited results.

Even without full financial disclosure, Longsun appears to have economic significance in several ways:

• It supports the local manufacturing base in Dongguan, a major industrial center in Guangdong.
• It contributes to the domestic supply of specialty silicone materials used in strategic sectors such as EVs and electrical infrastructure.
• It participates in standard-setting, which can shape supplier requirements and product quality norms across the industry.

Leadership and Corporate Governance

Registration information identifies Tan Zhengxin as the company’s legal representative and executive director/manager. Public company materials and local reporting also quote him in connection with Longsun’s strategy of sustained R&D and product development.

The company states that it has strengthened its governance and technical credibility through certifications and management systems, including references in industry listings to ISO 9001, ISO 14001, IATF 16949, and intellectual-property management systems. These systems are particularly relevant for suppliers serving automotive and electrical markets, where traceability and process control are important.

Innovations and Future Outlook

Longsun’s stated innovation model is to develop one generation, reserve one generation, and sell one generation, a formulation commonly used by technology-oriented manufacturers to describe sequential product development. In practical terms, this suggests a pipeline moving from established cable-grade silicones toward newer multifunctional materials for EVs and consumer electronics.

Its near-term technological priorities appear to include:

• High-voltage vehicle wiring materials
• Battery-pack insulation and flame-retardant materials
• Silicone thermoplastic elastomers
• Liquid silicone leather and coated materials

The company also appears to be investing in deeper research capability, including efforts to build or strengthen a provincial engineering technology center and multiple doctor-led R&D teams, according to industry reporting. If those initiatives continue, Longsun is likely to reinforce its position in specialty silicone compounds and adjacent high-performance polymer niches.

Summary

Dongguan Longsun Material Technology is a specialized Chinese silicone and polymer materials company whose core strength lies in insulation, flame resistance, and environmentally oriented materials for cables, EVs, electronics, and related applications. Its combination of technical focus, standard-setting participation, patent activity, and niche market positioning places it within a strategically important segment of China’s plastics and advanced materials industry.

References

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  CPS+ eMarketplace. (n.d.). DONGGUAN LONGSUN MATERIAL TECHNOLOGY CO.,LTDDONGGUAN LONGSUN MATERIAL TECHNOLOGY CO.,LTD. CPS+ eMarketplace. https://www.chinaplasonline.com/eMarketplace/ExhibitorInfo?CompId=1029358Link