Introduction
Changzhou Sanhe Plastic Rubber Co., Ltd. is a Chinese plastics and rubber foam manufacturer based in Changzhou, Jiangsu Province, specializing in PE/EVA, NBR/PVC, EPDM, and CR foam products and related deep-processed components. The company was established in December 2001 as a Sino-Japanese joint venture, and its development has centered on foam materials used for insulation, sealing, cushioning, sound absorption, and protective applications across industrial and consumer markets.
The firm’s profile on Chinaplas Online identifies it as a plastics and rubber supplier and notes a “Shining Niche” company certification, indicating recognition as a specialized industrial manufacturer within the plastics ecosystem. Company and partner materials also place it within the Sanwa Kako industrial network, reflecting a long-running cross-border cooperation model that has shaped its technical capabilities and product portfolio.
History and Development
Changzhou Sanhe originated from a Japanese-Chinese joint venture structure involving Sanwa Kako-related entities and Chinese partners, with the company formally established in 2001 in Changzhou’s Wujin Hi-Tech Zone. Its early operations were based on technology transferred from Japan and focused on open-cell plastic foam products.
Over time, the company expanded from a narrow technology base into a broader foam producer covering multiple material families and processing routes. Company materials state that it evolved into a comprehensive manufacturer of four series and ten major product lines, including PE/EVA, NBR/PVC, EPDM, and CR foam products.
A further development milestone is its integration into an export-oriented supply network. Trade and shipment databases indicate that Changzhou Sanhe has served buyers in Asia and other regions, which suggests that the company’s output has moved beyond the domestic market into international industrial supply chains.
Business Operations and Segments
Changzhou Sanhe’s business is centered on the manufacture and conversion of foam materials for industrial use. Its operations appear to combine upstream foam production with downstream cutting, shaping, laminating, and other processing steps.
The company’s core activities can be grouped into the following segments:
- Foam material production, including PE/EVA and rubber-based foam families.
- Deep processing and conversion, such as cutting, punching, shaping, gluing, and heat-setting.
- Application-specific components, including insulation, sealing, flooring, and protective parts.
- Export and industrial supply, with recorded shipments to overseas customers and participation in international trade channels.
Products and Technologies
Changzhou Sanhe’s product portfolio includes both closed-cell and open-cell foam materials, with the company emphasizing technical performance such as heat insulation, cushioning, sound absorption, sealing, fire resistance, and in some products electrical conductivity.
Its principal material classes include:
- PE/EVA foam, used in insulation, cushioning, packaging, and protective applications.
- NBR/PVC foam, offered in both block and continuous formats and positioned for insulation and sealing uses.
- EPDM foam, a rubber foam used where weathering resistance and sealing performance are important.
- CR foam, another rubber foam line within the company’s broader portfolio.
The company also highlights several processing capabilities and equipment categories. Public materials mention block foaming, extruded foaming, slicing, lamination, cutting, die cutting, gasket processing, and heat-setting, supported by equipment sourced from Japan and Germany. This indicates that Changzhou Sanhe is not only a foam producer but also a converter capable of tailoring products to customer specifications.
A company product page for NBR/PVC foam states that the material can be produced in closed-cell and open-cell forms and notes use in gaskets, fillers, thermal insulation, and cushioning applications. The same source identifies performance variants with flame-retardant properties, including products certified to standards such as UL94 V-0 and DIN 5510 for certain applications.
Applications and End Markets
Changzhou Sanhe’s products are used across a range of industrial and consumer end markets. Company materials and distributor profiles point to the following major applications:
- Civil engineering and building
- Road and bridge construction
- Automotive and transportation
- IT and home appliances
- Healthcare
- Sports and leisure
- Refrigeration and thermal insulation
- Packaging and protective materials
Additional product listings indicate specialized uses in anti-slip floor mats, sealing materials, waterproof materials, and dust-free workshop applications. Kompass descriptions also associate the company with insulating plastic panels for the refrigeration and building industries, reinforcing its position in construction and temperature-control applications.
Global Presence and Market Position
Changzhou Sanhe operates from No. 22 Fengming Road, Wujin Hi-Tech Zone, Changzhou, Jiangsu, China. The company’s reported production site covers approximately 37,000 square meters, with official materials also citing 55,000 cubic meters of foam production capacity for board products. Supplementary materials describe a workforce of roughly 100–200 employees depending on the source and reporting date.
In commercial terms, the company appears to occupy a specialized niche rather than a mass-market commodity role. Chinaplas Online lists it as a plastics and rubber supplier and marks it as a “Shining Niche” company, while trade data indicate sustained export activity to multiple overseas buyers.
Public shipment records suggest sales relationships in markets including Vietnam, India, and Indonesia, which is consistent with a regional industrial supply profile. Company materials and international exhibition documents also show repeated participation in overseas trade fairs, indicating active promotion in export-oriented markets.
Sustainability and Environmental Initiatives
Publicly available materials for Changzhou Sanhe do not provide a detailed sustainability report or quantified emissions targets. Based on the company’s product descriptions, however, much of its portfolio is tied to thermal insulation and sealing applications, which can indirectly support energy efficiency in buildings, refrigeration, and equipment systems.
The company’s materials also reference flame-retardant variants and compliance-related product testing for selected lines, suggesting attention to functional and safety standards in application-specific markets. At the same time, no comprehensive independent disclosure was found in the provided sources regarding carbon reduction, recycling rates, or lifecycle assessment programs.
Financial Performance and Economic Impact
No audited financial statements or detailed revenue figures were found in the available sources. As a result, the company’s financial performance cannot be assessed precisely from the provided material.
Its economic impact is more visible through industrial capacity, export activity, and participation in downstream supply chains. The company’s large product range, processing capabilities, and overseas trade relationships indicate that it functions as a supplier to manufacturers in construction, transportation, home appliances, and industrial equipment markets.
Leadership and Corporate Governance
Changzhou Sanhe is described as a Sino-Japanese joint venture, and its corporate history is closely linked to Japanese industrial partners and the Sanwa Kako group. The company’s governance structure therefore appears to reflect a cross-border ownership and technology-sharing model rather than a purely domestic Chinese ownership profile.
Public sources available in this search set do not provide a full leadership roster, board composition, or executive biographies for the company.
Innovations and Future Outlook
The company’s innovation profile is centered on material formulation and process integration rather than on consumer branding. Its evolution from open-cell foam production into a multi-series foam manufacturer suggests a strategy of expanding from a single technology platform into a broader application portfolio.
Key future-facing strengths include:
- Custom processing capability, which supports customer-specific components and shorter product development cycles.
- Broad foam chemistry coverage, enabling it to serve different thermal, mechanical, and acoustic requirements.
- Export experience, which may help the company remain competitive in regional industrial markets.
The main strategic challenge for companies in this segment is typically balancing cost, compliance, and performance as customers demand lighter materials, better fire performance, and more application-specific engineering. Changzhou Sanhe’s documented focus on specialized foam conversion positions it to participate in these trends, particularly in insulation, transportation, and industrial sealing markets.
Summary
Changzhou Sanhe Plastic Rubber Co., Ltd. is a specialized Chinese foam materials producer with a long-running Sino-Japanese joint-venture background, a diversified portfolio of PE/EVA and rubber-based foam products, and a manufacturing model built around both foam production and downstream conversion. Its role in the plastics industry is best understood as that of a niche industrial supplier serving insulation, sealing, cushioning, and protective-material markets in China and abroad.
References
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CPS+ eMarketplace. (n.d.). CHANGZHOU SANHE PLASTIC RUBBER CO., LTD.CHANGZHOU SANHE PLASTIC RUBBER CO., LTD.. CPS+ eMarketplace. https://www.chinaplasonline.com/eMarketplace/ExhibitorInfo?CompId=1023431Link