Introduction
ZHEJIANG JOYSUN ADVANCED MATERIAL CO., LTD. is a Chinese manufacturer of plastic and rubber additives focused on chemical foaming agents, PVC calcium-zinc stabilizers, wood-plastic composite (WPC) additives, and related specialty materials used in plastics processing and lightweighting applications. The company is based in Pinghu, Zhejiang Province, and operates from a manufacturing campus in the Dushangang Chemical Industrial Park, where it combines synthesis, research and development, and production management functions.
Founded in 2005 and formerly known as Shanghai Joysun Chemical Co., Ltd., the company has positioned itself as both a material supplier and a technical service provider in the plastics industry, with an emphasis on foaming technology, WPC formulations, and processing support for PVC and engineering polymer systems. Its product scope and application coverage indicate a business model centered on additives for building materials, automotive and rail lightweighting, flexible and rigid PVC products, and other calendered and extruded plastics.
History and Development
The company was established in 2005 under the earlier name Shanghai Joysun Chemical Co., Ltd., initially operating in the additives and processing-aid space before expanding into production and export-oriented supply.
A major development came in 2016, when Joysun built a comprehensive manufacturing complex in Pinghu’s Dushangang Chemical Industrial Park, integrating synthesis facilities, an R&D center, and production management into one site. This step marked a transition from a primarily trading and distribution profile toward a more vertically integrated industrial operation.
By the mid-2020s, the company had expanded its market footprint and technical profile, with official and industry-facing materials describing it as a specialized and niche enterprise and a high-tech enterprise in Zhejiang Province. Reporting in 2026 also described a second factory project in Pinghu intended to broaden its production of new electronic plastics additives and advanced materials.
Business Operations and Segments
Joysun’s business is organized around additive manufacturing, formulation support, and technical service for plastics processors. Its public materials describe the company as more than a raw-material supplier, emphasizing product development support and process-oriented solutions for customers.
Key operational areas include:
- Chemical foaming agents for extrusion, injection molding, and weight-reduction applications.
- PVC Ca-Zn stabilizers for rigid and flexible PVC processing.
- WPC lubricants and additives for wood-plastic composite flooring, decking, and profiles.
- Specialty additives and expandable sealants for automotive, rail, and NVH-related applications.
The company has also been described in trade and company-directory materials as an exporter with customers across multiple regions, including Europe, Southeast Asia, North America, and the Middle East.
Products and Technologies
Joysun’s product portfolio centers on foaming systems and PVC additive technologies.
Its chemical foaming-agent line includes powdered, pre-dispersed, and masterbatch-style formats designed for extrusion and injection processes. Public product materials mention grades and families associated with ADC, OBSH, TSH, TSSC, and DPT, indicating a broad technical base in gas-generating and foam-structure control systems.
The company’s PVC-related offerings include:
- Ca-Zn stabilizer systems for boards, pipes, profiles, sheets, and flooring substrates.
- Flame-retardant formulations for rigid and semi-rigid PVC building compounds.
- Processing and lubrication packages for WPC and related composite systems.
Product descriptions also highlight end-use tuning for lightweighting, shrinkage control, cavity sealing, vibration damping, and noise attenuation in engineering plastics and elastomers such as PS, ABS, PP, PE, PC, PA, PPO, POE, TPE, TPR, TPU, TPV, SBS, and SEBS. This suggests that the company works at the interface of additive chemistry and applied processing performance rather than supplying generic commodity materials alone.
Representative application areas
- SPC flooring substrates
- WPC flooring substrates
- PVC wood-plastic products
- PVC foamed advertising boards
- PVC bathroom cabinet boards
- PVC light-box fabrics
- Tent fabrics
- Automotive and rail lightweighting
- Cavity sealing and NVH applications
Applications and End Markets
Joysun’s materials are used primarily in construction and building products, where PVC foaming, rigid-profile formulation, and WPC systems support panels, boards, sheets, pipes, and decorative materials. These markets depend on additives that improve processability, density control, structural stability, and surface performance.
A second important market is automotive and rail, where expandable sealants and foaming additives support lightweight design, vibration control, and noise reduction. The company also references broader use in consumer and industrial plastics, especially in foamed or calendered products that require controlled expansion and consistent compound behavior.
Global Presence and Market Position
Company materials indicate that Joysun serves more than 600 customers worldwide and operates as an export-oriented supplier. Trade-data and exhibition listings confirm its participation in international commerce and plastics-industry marketing platforms.
The company’s position in the plastics sector is best understood as that of a specialized additives producer rather than a polymer resin maker or a general-purpose compounder. Its distinguishing feature is the combination of chemical synthesis capability, application-specific formulation, and process technical support for foaming and PVC/WPC systems.
Research and Development
Joysun places clear emphasis on applied R&D. Public materials state that the company maintains an R&D center and holds the scientific qualifications needed to support additive development and import-export activity.
The company has been associated with:
- Multiple national invention patents.
- Recognition as a Zhejiang Province High-Tech Enterprise.
- Recognition as a National Innovative SME and a Provincial “Hidden Champion” in company-facing materials.
- A company-affiliated high-tech research and development center listed in local innovation records.
Patent records linked to the company include work on a low-temperature automotive expandable adhesive and a non-ammonia environmentally oriented azodicarbonamide foaming agent, indicating attention to both performance and formulation refinement.
Sustainability and Environmental Initiatives
Joysun’s public materials emphasize halogen-free and antimony-free product options in some foaming and flame-retardant formulations, reflecting broader industry demand for lower-toxicity additive systems and regulatory responsiveness in building materials. Its product information also highlights “environmental” and “green” performance themes in foaming and additive development.
At the same time, the company operates in a sector that faces ongoing scrutiny over chemical handling, emissions, and additive safety, especially for industrial synthesis and foam-agent production. The company’s expansion into more integrated manufacturing and new-materials projects indicates continued investment in controlled production capacity and domestic supply-chain capability.
Financial Performance and Economic Impact
Local reporting in 2026 described Joysun as a company with annual revenue exceeding 200 million yuan and positioned it among notable specialty additive manufacturers in Pinghu. The same reporting described a new project with substantial added capacity and expected output value after full ramp-up.
The company’s economic role is tied to the supply of additive materials used by downstream plastics processors in construction, automotive, and industrial applications. Its expansion also contributes to local industrial upgrading in Jiaxing/Pinghu, particularly in specialty chemicals and advanced plastics materials.
Quality Management and Certifications
Joysun states that it holds ISO 9001 quality management certification and AEO Advanced Certification from Chinese customs. It is also listed on industry exhibition platforms as a Specialized and Niche Enterprise recognized by the Chinese government.
These credentials are consistent with a business model that serves export markets and technical customer segments requiring controlled formulation, stable supply, and documentation support.
Innovations and Future Outlook
Joysun’s recent development trajectory points toward deeper integration of specialty additives with advanced materials such as modified composites, nanofiber materials, fluoropolymer-related materials, and TPEE-related production noted in public project materials. This suggests an effort to move beyond additive supply into more complex material platforms.
The company’s future prospects are linked to several broader plastics-industry trends:
- Demand for lighter-weight automotive and industrial components.
- Continued growth in WPC and PVC building materials.
- Pressure for lower-emission and more regulatory-compliant additive chemistries.
- Chinese industrial policy support for specialized and niche manufacturers.
Its combination of synthesis capacity, technical service, and export orientation positions it as a specialized participant in the global plastics additives ecosystem, particularly in foaming and PVC/WPC processing systems.
References
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CPS+ eMarketplace. (n.d.). ZHEJIANG JOYSUN ADVANCED MATERIAL CO., LTDZHEJIANG JOYSUN ADVANCED MATERIAL CO., LTD. CPS+ eMarketplace. https://www.chinaplasonline.com/eMarketplace/ExhibitorInfo?CompId=1030192Link