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2025 Top 10 Thp Factory in China

Dec 29, 2025Leave a message

Introduction to Thp

THP, or Tetrahydrophthalic Anhydride, is an important organic chemical raw material. It is a white or light - yellow flaky solid with a melting point of around 100 - 104 °C. THP is widely used in various industries. In the field of coatings, it can be used as a curing agent for epoxy resins, which can improve the hardness, gloss, and chemical resistance of the coatings. In the production of plastics, it can be used as a modifier to enhance the performance of polymers. It also plays a crucial role in the synthesis of some pesticides and pharmaceuticals, providing special chemical properties to the final products. With the continuous development of the chemical industry, the demand for THP is increasing, and China has emerged as a significant producer of THP, with many factories showing excellent production capabilities and technological levels.


Top 10 Thp Factories in China

1. Zhangjiagang Xinya Chemical Co., Ltd.

Zhangjiagang Xinya Chemical Co., Ltd. is a well - established chemical enterprise in China. It has been focusing on the research, development, production, and sales of chemical products for many years. The company has a modern production base equipped with advanced production equipment and strict quality control systems.


Features in Thp Production:


  • High - Purity Production: The company has mastered advanced purification technologies, which can produce THP with high purity. High - purity THP is crucial for applications in high - end coatings and precision chemical synthesis, as it can ensure the quality and performance of the final products.
  • Customized Production: Zhangjiagang Xinya Chemical Co., Ltd. can provide customized THP products according to the different requirements of customers. Whether it is the specific purity level, packaging form, or special chemical properties, the company can adjust the production process to meet the needs.
  • Sustainable Production: The company is committed to sustainable development. It has introduced environmentally friendly production processes, reducing the emission of pollutants during the production of THP. This not only meets the requirements of environmental protection policies but also enhances the company's social image.


Advantages:


  • Technical Expertise: The company has a professional R & D team composed of experienced chemists and engineers. They are constantly exploring new production technologies and improving the existing processes, which enables the company to maintain a leading position in the industry.
  • Quality Assurance: The company has obtained a series of quality management system certifications, such as ISO 9001. From raw material procurement to product delivery, every link is strictly monitored to ensure the stability and reliability of product quality.
  • Market Reputation: With years of high - quality product supply and excellent after - sales service, Zhangjiagang Xinya Chemical Co., Ltd. has established a good reputation in the domestic and international markets. Many well - known enterprises in the chemical industry have chosen to cooperate with it.


Website: https://www.xinyachemical.com/


2. Shandong Hongda Chemical Industry Co., Ltd.

Shandong Hongda Chemical Industry Co., Ltd. is located in the chemical industry - intensive area of Shandong Province. It has a large - scale production base and a complete industrial chain. The company was founded in the early 2000s and has gradually developed into a key enterprise in the production of THP in China.


Features in Thp Production:


  • Large - Scale Production Capacity: The company has a high - output production line for THP. It can produce a large amount of THP annually, which can meet the large - scale procurement needs of customers. This large - scale production also enables the company to achieve economies of scale, reducing the production cost per unit of THP.
  • Continuous Technological Innovation: Shandong Hongda Chemical Industry Co., Ltd. invests a large amount of capital in technological innovation every year. It has cooperated with many well - known universities and research institutions to introduce the latest scientific research results into the production of THP. For example, it has developed a new type of catalyst, which can significantly improve the reaction efficiency in the production process of THP and increase the yield.
  • Diversified Product Portfolio: In addition to the standard THP products, the company also produces a series of THP - related derivatives. These derivatives can be used in different application fields, expanding the company's market share.


Advantages:


  • Geographical Advantage: Shandong Province is rich in chemical raw materials and has a well - developed transportation network. This enables the company to easily obtain raw materials at a relatively low cost and quickly transport the products to the market.
  • Talent Advantage: The company has attracted a large number of chemical professionals from all over the country. These talents have strong R & D and production management capabilities, which provide strong support for the company's development.
  • Industry Chain Integration: The company has integrated the upstream and downstream industries of THP production. It can control the quality of raw materials from the source and ensure the stability of the supply of intermediate products, which is conducive to improving the overall competitiveness of the company.


3. Jiangsu Yangnong Chemical Group Co., Ltd.

Jiangsu Yangnong Chemical Group Co., Ltd. is a large - scale state - owned enterprise with a long history in the chemical industry. It has a high - level R & D center and a modern production base. The company is well - known for its high - quality chemical products and strict safety management.


Features in Thp Production:


  • High - Quality Standard: The company adheres to the highest quality standards in the production of THP. It uses high - purity raw materials and advanced production processes to ensure that the THP products meet the international quality requirements. The products have stable chemical properties and low impurity content, which are widely used in high - end application fields.
  • Safety - First Production Concept: In the production process of THP, safety is the top priority of Jiangsu Yangnong Chemical Group Co., Ltd. The company has established a complete safety management system, from the design of the production equipment to the operation of the production process, every step is strictly regulated to prevent safety accidents.
  • International Market Orientation: The company actively participates in the international market competition. Its THP products are exported to many countries and regions in Europe, America, and Asia. It has established long - term and stable cooperative relationships with many international customers.


Advantages:


  • Brand Advantage: As a well - known state - owned enterprise, Jiangsu Yangnong Chemical Group Co., Ltd. has a high - reputation brand. The brand represents high - quality products and reliable services, which gives the company a strong competitive advantage in the market.
  • R & D Advantage: The company's R & D center has a strong R & D strength. It can continuously develop new products and improve the existing production processes. The company also participates in many national and international scientific research projects, which helps it to keep up with the latest technological trends in the industry.
  • Policy Support: As a key state - owned enterprise in the chemical industry, the company can enjoy a series of policy supports from the government. These policies include tax incentives, R & D subsidies, and infrastructure construction support, which are conducive to the long - term development of the company.


4. Zhejiang Longsheng Group Co., Ltd.

Zhejiang Longsheng Group Co., Ltd. is a comprehensive chemical enterprise with a wide range of business scopes. It has a strong financial strength and a large - scale production capacity. The company has been committed to the research and development and production of high - performance chemical products.


Features in Thp Production:


  • Advanced Production Technology: Zhejiang Longsheng Group Co., Ltd. has introduced advanced production technology from abroad and combined it with its own R & D results. The production process of THP is highly automated, which can improve the production efficiency and product quality. For example, the company uses a computer - controlled reaction system, which can accurately control the reaction temperature, pressure, and time, ensuring the stability of the product quality.
  • Product Innovation: The company focuses on product innovation. It continuously develops new types of THP products with special functions, such as heat - resistant THP and flame - retardant THP. These new products can meet the emerging market demands in some special industries.
  • Global Marketing Network: The company has established a global marketing network. It can quickly understand the market demand information in different regions and adjust the production and sales strategies in a timely manner. The THP products of the company are sold well in the global market.


Advantages:


  • Financial Strength: Zhejiang Longsheng Group Co., Ltd. has strong financial strength, which enables it to invest a large amount of capital in R & D, production expansion, and market development. This financial support is crucial for the company to maintain its leading position in the industry.
  • Talent Agglomeration: The company has created a good working environment and development platform, attracting a large number of high - level talents in the chemical field. These talents have rich experience and innovative thinking, which promote the continuous innovation and development of the company.
  • Industry Influence: As a leading enterprise in the chemical industry, Zhejiang Longsheng Group Co., Ltd. has a strong influence on the industry. It can participate in the formulation of industry standards and guide the development direction of the industry.


5. Tianjin Dagu Chemical Co., Ltd.

Tianjin Dagu Chemical Co., Ltd. is located in the important chemical industry base of Tianjin. It has a long - standing history in the production of basic chemical products and has gradually expanded its business to the production of THP.


Features in Thp Production:


  • Stable Raw Material Supply: The company has established long - term cooperative relationships with many raw material suppliers. It can ensure the stable supply of raw materials for THP production, which is very important for maintaining the normal operation of the production line.
  • Process Optimization: Tianjin Dagu Chemical Co., Ltd. has been constantly optimizing the production process of THP. Through continuous improvement of the reaction conditions and separation processes, the company has improved the product yield and reduced the production cost.
  • Quality Control in the Whole Process: The company implements strict quality control in the whole production process of THP. From the inspection of raw materials to the final product testing, every step is carried out in accordance with strict quality standards to ensure that the products meet the requirements of customers.


Advantages:


  • Location Advantage: Tianjin is an important port city in China, with convenient transportation and a well - developed logistics system. This enables the company to easily export its products to the international market and import high - quality raw materials.
  • Industrial Agglomeration Advantage: Being located in the chemical industry base of Tianjin, the company can enjoy the advantages of industrial agglomeration. It can share resources and technologies with other chemical enterprises in the region, which is conducive to improving the overall competitiveness of the company.
  • Experience Accumulation: With many years of experience in the chemical industry, the company has accumulated rich production and management experience. This experience can help the company quickly solve various problems in the production process of THP and ensure the stable operation of the production line.


6. Liaoning Yufeng Chemical Co., Ltd.

Liaoning Yufeng Chemical Co., Ltd. is a private enterprise focusing on the production of fine chemicals. It has a flexible management mechanism and a strong innovation ability. The company has entered the THP production field in recent years and has achieved rapid development.


Features in Thp Production:


  • Flexible Production Mode: Liaoning Yufeng Chemical Co., Ltd. can quickly adjust the production plan according to the market demand. Whether it is a small - batch customized order or a large - scale mass production, the company can complete the production task efficiently.
  • Cost - Effective Products: The company pays attention to cost control in the production process of THP. Through optimizing the production process and reducing waste, the company can produce high - quality THP products at a relatively low cost. These cost - effective products are very popular in the market.
  • Customer - Centered Service: The company takes customer satisfaction as its service goal. It provides personalized service to each customer, including pre - sales consultation, in - sales tracking, and after - sales service. The company has established a good relationship with many customers through its high - quality service.


Advantages:


  • Innovation - Driven Development: The company encourages innovation. It has set up an innovation incentive mechanism, which stimulates the enthusiasm of employees to innovate. The company has continuously developed some new production technologies and management methods, which have improved the production efficiency and product quality.
  • Market Adaptability: As a private enterprise, Liaoning Yufeng Chemical Co., Ltd. has a high degree of market adaptability. It can quickly respond to market changes and adjust its business strategies, which is conducive to seizing market opportunities.
  • Cultural Advantage: The company has formed a unique corporate culture that emphasizes teamwork, innovation, and customer - orientation. This corporate culture has enhanced the cohesion and competitiveness of the company.


7. Guangdong Wengjiang Chemical Reagent Co., Ltd.

Guangdong Wengjiang Chemical Reagent Co., Ltd. is a professional chemical reagent manufacturer. It has a strict quality control system and a wide range of product varieties. The company has also extended its business to the production of THP.


Features in Thp Production:


  • High - Precision Production: The company is used to high - precision production in the production of chemical reagents. This experience is also applied to the production of THP. The company can produce THP products with high precision in terms of chemical composition and physical properties, which are suitable for some high - precision application fields, such as analytical chemistry and micro - electronics.
  • Quality Traceability System: Guangdong Wengjiang Chemical Reagent Co., Ltd. has established a complete quality traceability system for THP products. From the raw material source to the production process and final product sales, every link can be traced. This ensures the quality and safety of the products and provides strong support for after - sales service.
  • Product Standardization: The company strictly follows the national and international standards in the production of THP. The products are standardized in terms of packaging, labeling, and quality indicators, which is convenient for customers to use and manage.


Advantages:


  • Quality Reputation: The company has a good reputation for product quality in the chemical reagent industry. This reputation can be extended to the THP products, which makes customers more confident in choosing the company's products.
  • R & D and Quality Control Experience: The long - term R & D and quality control experience in the production of chemical reagents has enabled the company to have a high - level quality control and R & D team. This team can ensure the quality and innovation of the THP products.
  • Market Diversification: The company has a wide range of customer groups in the chemical reagent market. It can use this market advantage to promote the THP products to different industries, expanding the market share of the THP products.


8. Sichuan Hebang Chemical Co., Ltd.

Sichuan Hebang Chemical Co., Ltd. is a large - scale chemical enterprise in the western region of China. It has a rich resource endowment and a large - scale production base. The company has been committed to the development and utilization of local chemical resources and has achieved remarkable results in the production of THP.


Features in Thp Production:


  • Resource - Based Production: Sichuan is rich in chemical resources. Sichuan Hebang Chemical Co., Ltd. can make full use of these local resources in the production of THP. For example, the company can obtain some key raw materials at a relatively low cost, which reduces the production cost of THP.
  • Ecological - Friendly Production Process: The company attaches great importance to environmental protection. It has developed an ecological - friendly production process for THP, which can reduce the emission of pollutants and waste. The company also actively explores the recycling and reuse of waste materials, achieving sustainable development.
  • Regional Market Dominance: The company has a strong influence in the western region of China. It can quickly occupy the local market and gradually expand to other regions. The THP products of the company are very popular in the local chemical industry.


Advantages:


  • Resource Advantage: The rich chemical resources in Sichuan Province provide a solid foundation for the company's development. The company can ensure the stable supply of raw materials and reduce the production cost through resource integration.
  • Policy Support in the Western Region: The Chinese government has implemented a series of preferential policies to support the development of the western region. Sichuan Hebang Chemical Co., Ltd. can enjoy these policies, such as tax incentives and infrastructure construction support, which are conducive to the company's development.
  • Local Market Familiarity: The company has a deep understanding of the local market demand in the western region. It can develop products and marketing strategies according to the local market characteristics, which is beneficial to improving the market share.


9. Hubei Xingfa Chemicals Group Co., Ltd.

Hubei Xingfa Chemicals Group Co., Ltd. is a leading enterprise in the chemical industry in Hubei Province. It has a complete industrial chain and a high - level R & D team. The company has made great contributions to the development of the chemical industry in Hubei.


Features in Thp Production:


  • Integrated Production System: The company has established an integrated production system for THP. It can produce THP from the upstream raw materials to the final products, which can effectively control the quality and cost of the products. The integrated production system also improves the production efficiency and reduces the production cycle.
  • Continuous Quality Improvement: Hubei Xingfa Chemicals Group Co., Ltd. continuously improves the quality of THP products through technological innovation and process optimization. The company regularly conducts quality audits and product performance tests to ensure that the products meet the highest quality standards.
  • Industry - University - Research Cooperation: The company actively cooperates with universities and research institutions. Through industry - university - research cooperation, the company can introduce the latest scientific research results into the production of THP, improving the technological level of the company.


Advantages:


  • Industrial Chain Advantage: The complete industrial chain of the company enables it to have strong cost - control ability and market competitiveness. It can quickly respond to the market changes and adjust the production and sales strategies.
  • R & D and Innovation Ability: The high - level R & D team of the company can continuously develop new technologies and products. The company has a number of independent intellectual property rights in the production of THP, which enhances the company's core competitiveness.
  • Industry Leadership: As a leading enterprise in the local chemical industry, Hubei Xingfa Chemicals Group Co., Ltd. can play a leading role in the industry. It can promote the technological progress and industry upgrading of the THP production industry in Hubei Province.


10. Fujian Longking Co., Ltd.

Fujian Longking Co., Ltd. is a high - tech enterprise focusing on environmental protection and chemical products. It has a strong R & D and production capacity in the field of fine chemicals. The company has entered the THP production field in recent years and has shown good development potential.


Features in Thp Production:


  • Environmental - Protection - Oriented Production: Fujian Longking Co., Ltd. emphasizes environmental protection in the production of THP. It uses green raw materials and clean production processes to reduce the environmental impact. The company's THP products are also in line with the environmental protection requirements of some high - end application fields.
  • Intelligent Production Management: The company has introduced intelligent production management systems. These systems can monitor the production process in real - time, analyze production data, and optimize the production process. The intelligent production management has improved the production efficiency and product quality.
  • New - Market Exploration: Fujian Longking Co., Ltd. actively explores new markets for THP products. It focuses on some emerging industries, such as new energy and high - performance materials. The company's new - market exploration strategy has expanded the application scope of THP products.


Advantages:


  • High - Tech Advantage: As a high - tech enterprise, Fujian Longking Co., Ltd. has strong technological innovation ability. It can continuously develop new production technologies and products, which is conducive to the long - term development of the company.
  • Environmental - Protection Image: The company's environmental - protection - oriented production concept has established a good social image. This image can attract some environmentally - conscious customers and help the company to enter some high - end markets.
  • Market - Sensitive Strategy: The company has a high degree of market sensitivity. It can quickly capture market trends and adjust the product R & D and production strategies, which is beneficial to seizing market opportunities.


Summary

The above - mentioned 10 factories are the top Thp factories in China in 2025. Each factory has its own unique features and advantages in the production of THP. Some factories have advanced production technologies and high - quality products, while others have strong cost - control ability and market adaptability. These factories not only meet the domestic market demand for THP but also have a certain influence in the international market. With the continuous development of the chemical industry, these factories will continue to play an important role in promoting the technological progress and industry upgrading of the THP production industry in China. At the same time, they will also face some challenges, such as environmental protection requirements, market competition, and technological innovation pressure. However, with their own advantages and continuous efforts, these factories are expected to achieve better development in the future.


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