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Professionalism & integrity win the respect of customers

Zhejaing JoySun

Established in 2005, we have built a comprehensive factory area that integrates synthesis factory, research and development center, and production management. As a professional manufacturer of chemical foaming agents, calcium zinc stabilizers, WPC wood plastic lubricants, and special additives.

Our Featured Products

More than a premium raw material supplier, we excel in foaming and wood-plastic core technologies, offering world-class foaming agents, calcium-zinc stabilizers, lubricants, and customized technical solutions.

View all products
R&D & Technology

With large-scale R&D facilities and multi-level R&D platforms, sustained substantial R&D investment, a highly educated team, and industry-academia-research cooperation with universities.

Second Factory

Second Factory

  • 1600

    R&D site area

  • 11+Million USD

    6-year R&D investment

  • 20+Person

    Highly educated R&D team

  • 34

    Patents

Applications & Solutions
News
Releases

Stay updated on our latest corporate news, milestones, and exhibition insights—get details on participation, highlights, and on-site coverage to understand our strategic initiatives in real time.

Jun 182026
What Is TPEE Pellets? A Complete Guide to Thermoplastic Polyester Elastomer

1. Why Engineers Are Choosing TPEE Over Rubber & TPU For decades, engineers designing flexible components — automotive boots, cable jackets, industrial hoses — defaulted to vulcanized rubb

Jun 122026
EVA Foaming Agent for Shoe Soles: How to Select the Right Grade for Injection Molding

In EVA outsole production, the selection of a foaming agent grade is not a secondary formulation decision — it is the variable that determines whether a shoe sole meets dimensional tolerances, a

Mar 102026
Joysun Excellence Performance Management Training1

We take pride in our competent sci-tech team, launching new patented products annually. We have been consecutively awarded titlescal Device Co., Ltd. and a financial company.

Mar 102026
Joysun Excellence Performance Management Training

We take pride in our competent sci-tech team, launching new patented products annually. We have been consecutively awarded titlescal Device Co., Ltd. and a financial company.

Mar 102026
Joysun Excellence Performance Management Training

We take pride in our competent sci-tech team, launching new patented products annually. We have been consecutively awarded titlescal Device Co., Ltd. and a financial company.

Mar 102026
Joysun Excellence Performance Management Training

We take pride in our competent sci-tech team, launching new patented products annually. We have been consecutively awarded titlescal Device Co., Ltd. and a financial company.

Mar 102026
Joysun Excellence Performance Management Training

We take pride in our competent sci-tech team, launching new patented products annually. We have been consecutively awarded titlescal Device Co., Ltd. and a financial company.

Mar 102026
Joysun Excellence Performance Management Training

We take pride in our competent sci-tech team, launching new patented products annually. We have been consecutively awarded titlescal Device Co., Ltd. and a financial company.

Mar 102026
Joysun Excellence Performance Management Training

We take pride in our competent sci-tech team, launching new patented products annually. We have been consecutively awarded titlescal Device Co., Ltd. and a financial company.

Mar 102026
Joysun Excellence Performance Management Training

We take pride in our competent sci-tech team, launching new patented products annually. We have been consecutively awarded titlescal Device Co., Ltd. and a financial company.

Mar 102026
Joysun Excellence Performance Management Training

We take pride in our competent sci-tech team, launching new patented products annually. We have been consecutively awarded titlescal Device Co., Ltd. and a financial company.

Mar 102026
Joysun Excellence Performance Management Training

We take pride in our competent sci-tech team, launching new patented products annually. We have been consecutively awarded titlescal Device Co., Ltd. and a financial company.