Introduction
Quzhou Weirong Pharmaceutical & Chemical Co., Ltd. (衢州伟荣药化股份有限公司) is a Chinese fine-chemical manufacturer focused on veterinary GMP active pharmaceutical ingredients (APIs) and specialty chemical products, with a production base in Kecheng District, Quzhou, Zhejiang Province. The company traces its origins to 1993 and was restructured in September 1998, and it has since developed a portfolio centered on acetylacetone, calcium acetylacetonate, and veterinary and industrial intermediates used in downstream chemical and plastics-related applications.
In the plastics value chain, Quzhou Weirong is relevant primarily through its acetylacetone derivatives, especially calcium acetylacetonate, which is used in polymer stabilization and related compounding applications, including PVC formulations described in industry market reports. The company also reports certifications and management systems that indicate an emphasis on quality control, environmental management, and occupational safety, including ISO 9001, ISO 14001, and ISO 45001.
History and Development
Quzhou Weirong began as Quzhou Jindun Industrial Corporation, a local enterprise under the former Quzhou Kecheng District Material Bureau, and was later restructured into its present form in 1998. The company’s development reflects the transition of many Chinese regional chemical producers from locally managed industrial entities into specialized private or shareholding manufacturers serving niche fine-chemical markets.
Three concrete milestones define its development trajectory:
- 1993: Establishment of the company’s predecessor, Quzhou Jindun Industrial Corporation.
- 1998: Restructuring into Quzhou Weirong Pharmaceutical & Chemical Co., Ltd.
- 2010s–2020s: Expansion of its technical platform, including a provincial-level R&D center for APIs and ongoing process innovation across multiple products and projects.
The company also reports that in the most recent three-year period cited on its English-language materials, it completed five product-related innovation efforts and 15 projects, with improvements in energy efficiency, environmental performance, and raw-material cost reduction.
Business Operations and Segments
Quzhou Weirong operates as a fine-chemical production enterprise integrating veterinary GMP APIs with chemical products. Its business model combines manufacturing, product development, and sales for both pharmaceutical-related intermediates and industrial chemical uses.
Its operational base is located at No. 249 Shajin Avenue, Kecheng District, Quzhou, adjacent to Juhua Group, a location that supports access to chemical-industry infrastructure and logistics networks. The company site is reported to cover approximately 167,700 square meters, with a built-up area of 57,400 square meters and fixed assets of about RMB 200 million.
The company describes itself as a holder of both the Veterinary Drug Production License and the Drug Production License issued by Chinese national authorities, which indicates regulated production capability in both veterinary and pharmaceutical domains.
Products and Technologies
Quzhou Weirong’s product portfolio includes acetylacetone, calcium acetylacetonate, acetylmequine (乙酰甲喹), olaquindox, furazolidone, furaltadone hydrochloride, furacilin, isopropyl acetate, and 1,1,3,3-tetrabutylurea. Chinese supplier and product-directory sources also associate the company with additional fine-chemical offerings such as 5-nitrofurfural diacetate, sodium methylate, sodium acetate, camphor-β-sulfonic acid, clopicol, and p-hydroxybenzoic acid.
Its most strategically visible chemical platform is acetylacetone chemistry. Industry reports identify Quzhou Weirong as a significant producer of acetylacetone and calcium acetylacetonate, with reported capacities including 18,000 tons for acetylacetone and 8,000 tons for calcium acetylacetonate in market intelligence sources. These materials are important intermediates in metal chelation chemistry, polymer additives, and PVC heat-stabilizer systems.
Key technical characteristics of the company’s product base include:
- GMP-linked veterinary APIs and intermediates, requiring controlled production conditions and quality systems.
- Metal acetylacetonates, which are relevant in catalyst and stabilizer chemistry.
- Bulk fine chemicals, such as acetylacetone and isopropyl acetate, which support industrial synthesis chains.
A patent record also links the company to intellectual-property activity around calcium acetylacetone preparation, indicating engagement in process development for derivative chemicals.
Applications and End Markets
Quzhou Weirong serves both animal health and industrial chemical markets. Its veterinary products are used in pharmaceutical supply chains for livestock and related applications, while its fine chemicals extend into broader chemical and materials markets.
The plastics-relevant portion of its business is tied to PVC stabilization* and other polymer-adjacent applications through **calcium acetylacetonate* and related acetylacetone derivatives. Market studies identify these materials as part of the supply base for **Asian PVC and industrial additive markets.
The company’s reported product set also supports:
- Pharmaceutical and veterinary intermediates
- Chemical synthesis intermediates
- Polymer additive and stabilizer systems
- General industrial chemical processing
Global Presence and Market Position
The company is headquartered in Quzhou, Zhejiang, and its official and third-party listings indicate supply activity in domestic and export-oriented chemical channels. Chinaplas exhibitor materials identify the company as participating in the plastics-and-rubber ecosystem and presenting itself in a global business context.
Within acetylacetone-related markets, industry research describes Quzhou Weirong as a noteworthy Chinese producer with meaningful capacity in acetylacetone and calcium acetylacetonate supply chains. That positioning places it among suppliers serving the intersection of fine chemicals, polymer additives, and pharmaceutical intermediates.
Research and Development
Quzhou Weirong states that it maintains a provincial-level high-tech research and development center focused on APIs. The company also emphasizes a complete R&D system and a staff base combining technical personnel and production workers.
Its reported development work has included process improvements aimed at:
- Energy conservation
- Reduced material consumption
- Environmental performance enhancement
- Lower raw-material costs
The presence of patent-linked activity around calcium acetylacetone suggests that process refinement is part of the company’s competitive strategy, particularly in product lines where purity, consistency, and cost efficiency are commercially important.
Sustainability and Environmental Initiatives
The company reports implementation of ISO 14001 environmental management and ISO 45001 occupational health and safety systems, alongside ISO 9001 quality management. These systems indicate formalized approaches to environmental control, product quality, and workplace safety in a chemical manufacturing setting.
Company materials also state that recent innovation work delivered progress in energy saving, consumption reduction, and environmental improvement, which is particularly relevant for fine-chemical production where solvent use, effluent control, and process efficiency are central operational issues.
Financial Performance and Economic Impact
Quzhou Weirong is described in company materials as a key industrial enterprise in Quzhou and a high-tech enterprise in Zhejiang Province. It is also presented in local industrial datasets as operating within the basic chemicals category, with reported 2023 revenue, profitability, and employment figures published by market-information services. Those data place the company in the profile of a mid-sized regional chemical manufacturer with a material local industrial footprint.
The company’s economic role is reinforced by its longstanding presence in Quzhou’s chemical-industrial base and by its integration with regional logistics and adjacent chemical-industry infrastructure.
Quality Management and Certifications
Quzhou Weirong reports adoption of:
- ISO 9001 quality management
- ISO 14001 environmental management
- ISO 45001 occupational health and safety management
The company also states that it holds the Chinese Veterinary Drug Production License and Drug Production License, which are important regulatory credentials for its pharmaceutical-linked operations. In addition, company and supplier profiles describe it as a high-tech enterprise in Zhejiang Province and note recognition as a credit management demonstration enterprise in 2019.
Innovations and Future Outlook
Quzhou Weirong’s future prospects are closely tied to the demand for acetylacetone derivatives, veterinary APIs, and specialty fine chemicals that support industrial and materials applications. Its existing technical base, regulated production licenses, and process-improvement record suggest a business model built on incremental innovation, quality consistency, and cost-efficient chemical manufacturing.
The company’s role in acetylacetone chemistry is especially significant for downstream sectors that require controlled additive performance, including PVC processing and other polymer systems where stabilizer chemistry affects thermal behavior and product durability.
References
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CPS+ eMarketplace. (n.d.). QUZHOU WEIRONG PHARMACEUTICAL & CHEMICAL CO., LTD.QUZHOU WEIRONG PHARMACEUTICAL & CHEMICAL CO., LTD.. CPS+ eMarketplace. https://www.chinaplasonline.com/eMarketplace/ExhibitorInfo?CompId=1033084Link