Introduction
Tangyuan Hairuite Engineering Plastics Co., Ltd. (汤原县海瑞特工程塑料有限公司) is a Chinese specialty engineering plastics producer based in Tangyuan County, Heilongjiang Province, with operations centered on PEEK and related PAEK materials, including synthesis, modification, and downstream resin products. The company is positioned in the high-performance plastics segment of the broader plastics industry, supplying materials used in demanding applications such as aerospace, automotive, electronics, energy, and medical devices.
Industry listings identify the company as a “Shining Niche” enterprise and place it among China’s technologically focused industrial firms, reflecting its specialization and regional industrial role. Public filings and business disclosures also indicate that Tangyuan Hairuite has developed industrial production capability for high-performance engineering plastics and has become strategically important enough to attract acquisition interest from a listed specialty chemicals company.
History and Development
Tangyuan Hairuite was established on 10 July 2013 and is registered in the East Industrial Chemical Park in Tangyuan County, Jiamusi, Heilongjiang. Its registered capital was disclosed as RMB 68 million, and its business scope includes polyarylate resin synthesis and product manufacturing, as well as related import and export activities where permitted by law.
A notable development milestone came in 2025, when the company was included in Heilongjiang Province’s list of proposed technology-based small and medium-sized enterprises, indicating official recognition of its innovation profile. Another milestone followed in January 2026, when Sino-High (China) Co., Ltd. announced an agreement to acquire a 51% stake in Tangyuan Hairuite, citing the company’s role in extending its PAEK industrial chain.
By early 2026, media and corporate disclosures described Tangyuan Hairuite as a manufacturer with an annual industrial capacity of more than 200 tons for specialty engineering plastics products, underscoring its scale as a focused niche producer rather than a mass-market plastics converter.
Business Operations and Segments
Tangyuan Hairuite’s core business is concentrated in specialty aromatic polymer materials, with emphasis on PEEK and other PAEK derivatives. Its operations combine upstream resin synthesis with downstream modified resin development and sales, giving it a vertically integrated position within a technical materials niche.
The company’s activities can be grouped into the following functional areas:
- Resin synthesis for specialty engineering plastics.
- Modified resin development for application-specific performance tuning.
- Production and sales of high-performance polymer materials.
- Import and export of permitted polyarylate-related products and technologies.
This structure is typical of specialty materials producers that serve high-value applications where performance, consistency, and traceability matter more than commodity scale.
Products and Technologies
Tangyuan Hairuite is publicly associated with PEEK special resin and low-melting PAEK special resins, alongside related modified materials. PEEK and PAEK polymers are known for their high heat resistance, chemical resistance, dimensional stability, and strength-to-weight performance, making them suitable for advanced industrial uses.
Reported technical capabilities include:
- PEEK resin synthesis.
- PAEK low-melting resin production for application-specific processing and bonding advantages.
- Modified resin R&D, indicating formulation work for tailored mechanical or processing properties.
- Purification and post-processing know-how related to polyaryletherketone materials, as reflected in a patent record naming Tangyuan Hairuite as the applicant.
The patent record suggests that the company has engaged in process development for polyaryletherketone purification, a technically important step in specialty polymer production because it can affect product purity, residual solvent content, and consistency. In specialty engineering plastics, these process controls are often as important as polymerization itself, particularly for applications requiring tight specification limits.
Applications and End Markets
Public sources indicate that Tangyuan Hairuite’s materials are used in several high-performance sectors:
- Aerospace
- Automotive
- Electronics and electrical
- Energy
- Medical devices
These end markets are consistent with the properties of PEEK and PAEK polymers, which are selected where conventional plastics cannot meet thermal, mechanical, or chemical requirements. The company’s product profile suggests that it serves customers seeking substitute materials for metal parts, insulation components, structural parts, and other demanding engineered applications.
Global Presence and Market Position
Tangyuan Hairuite is headquartered in Tangyuan County, Jiamusi, Heilongjiang, China, and its public profile indicates a primarily China-based industrial footprint. The company also describes import and export activities within permitted categories, implying some participation in cross-border specialty materials trade.
In market terms, Tangyuan Hairuite occupies a niche position in the specialty engineering plastics chain rather than the broad commodity plastics market. Its significance lies in its focus on high-performance aromatic ketone polymers, a segment that has strategic value for advanced manufacturing and for domestic supply-chain localization in China.
The 2026 equity acquisition by Sino-High further suggests that Tangyuan Hairuite is viewed as a strategic asset in the Chinese specialty materials ecosystem, particularly for companies seeking to strengthen access to PAEK materials and customer solutions.
Sustainability and Environmental Initiatives
No detailed sustainability report was identified in the available public sources. Based on its product category, however, Tangyuan Hairuite operates in a segment where environmental performance is influenced by both chemical process management and material lifetime.
Relevant industry context includes:
- Specialty polymers such as PEEK and PAEK are often used to extend component life and reduce material weight in demanding applications.
- Chemical synthesis and purification of high-performance polymers require careful solvent handling, emissions control, and waste management.
- Regulatory and customer expectations increasingly emphasize traceability, process safety, and responsible manufacturing in advanced materials supply chains.
Because the available sources do not provide company-specific environmental metrics, any stronger claim about emissions, recycling, or carbon reduction would be unsupported.
Financial Performance and Economic Impact
Publicly available financial detail is limited. However, the January 2026 transaction announcement stated that Tangyuan Hairuite had total assets of RMB 40.99 million as of 31 August 2025, which provides a recent snapshot of balance-sheet scale. The same disclosures valued the 51% equity transfer at approximately RMB 12.9 million.
The company’s economic impact is more visible in its industrial role than in large-scale revenue disclosure. As a producer of specialty engineering plastics in northeast China, it contributes to:
- Regional industrial upgrading
- Domestic supply of high-performance polymer materials
- Support for advanced manufacturing sectors
- Development of a specialty chemicals cluster in Heilongjiang
Leadership and Corporate Governance
Public disclosures name Jiang Zhongxi as the legal representative in the 2026 acquisition announcement and related filings. Other directory-style sources associate the company with Xu Dongguo as a listed responsible person, indicating that some public databases may reflect different filing points or records. On the basis of the available sources, the most reliable governance fact is that the company is a limited liability company controlled through private ownership and later became the subject of a majority acquisition transaction.
Innovations and Future Outlook
Tangyuan Hairuite’s future prospects are tied to broader growth in high-performance engineering plastics, especially the substitution of metals and conventional polymers in lightweight and thermally demanding applications. Its technical relevance is strengthened by its association with PEEK/PAEK synthesis, patent activity, and recognition as a technology-oriented small enterprise.
The acquisition by Sino-High suggests several likely strategic directions:
- Expanded integration into a larger specialty chemicals platform.
- Broader commercialization of PAEK materials through an established listed-company network.
- Potential capacity, customer, and R&D support aligned with downstream application development.
For the wider plastics industry, the company illustrates a broader trend: Chinese manufacturers are moving further into high-value specialty polymers, where process expertise and application engineering can matter as much as scale.
References
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CPS+ eMarketplace. (n.d.). TANGYUAN HAIRUITE ENGINEERING PLASTICS CO., LTD.TANGYUAN HAIRUITE ENGINEERING PLASTICS CO., LTD.. CPS+ eMarketplace. https://www.chinaplasonline.com/eMarketplace/ExhibitorInfo?CompId=1002245Link